{"id":21202,"date":"2026-01-05T09:14:47","date_gmt":"2026-01-05T01:14:47","guid":{"rendered":"https:\/\/viox.com\/?p=21202"},"modified":"2026-01-05T09:14:50","modified_gmt":"2026-01-05T01:14:50","slug":"pv-combiner-box-enclosure-selection-thermal-uv-comparison","status":"publish","type":"post","link":"https:\/\/test.viox.com\/my\/pv-combiner-box-enclosure-selection-thermal-uv-comparison\/","title":{"rendered":"Why Combiner Box Enclosure Selection Is More Critical Than You Think"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u1010\u1032\u1037 <strong>photovoltaic combiner box enclosure<\/strong> isn\u2019t just a weatherproof shell\u2014it\u2019s a thermal management system operating under extreme conditions. Unlike standard junction boxes, PV combiner boxes face three simultaneous engineering challenges: <strong>sustained heat generation from high-current DC switching components<\/strong>, <strong>continuous UV exposure degrading materials 24\/7<\/strong>\u1014\u103e\u1004\u1037\u103a <strong>thermal cycling stresses<\/strong> from desert day\/night temperature swings of 40\u00b0C+. The enclosure material you select directly determines whether your fuses and circuit breakers operate within their rated capacity or suffer premature thermal degradation.<\/p>\n<h3>\u101e\u1031\u102c\u1037\u1011\u102f\u1010\u103a\u101a\u1030\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/h3>\n<ul>\n<li><strong>Aluminum enclosures act as passive heatsinks<\/strong>, dissipating heat 1000x more effectively than polycarbonate\u2014critical for preventing <a href=\"https:\/\/test.viox.com\/my\/circuit-breaker-ambient-temperature-ratings-and-derating-factors\/\">circuit breaker thermal derating<\/a> in 200A+ systems<\/li>\n<li><strong>Polycarbonate\u2019s Class II double insulation<\/strong> eliminates enclosure <a href=\"https:\/\/test.viox.com\/my\/how-to-ground-an-electrical-panel\/\">grounding requirements<\/a>, reducing installation labor by 15-20% in labor-expensive markets<\/li>\n<li><strong>Generic ABS plastic fails catastrophically<\/strong> in PV applications\u2014UV degradation causes brittleness within 6-12 months (<a href=\"https:\/\/test.viox.com\/my\/why-outdoor-isolators-fail-polycarbonate-vs-abs\/\">material failure analysis<\/a>)<\/li>\n<li><strong>316L stainless steel justifies its premium<\/strong> only in salt fog environments within 5 miles of coastline\u2014otherwise aluminum delivers superior thermal performance at lower cost<\/li>\n<li><strong>For 1500V systems exceeding 150A total current<\/strong>, metal enclosures aren\u2019t optional\u2014internal temperatures in plastic housings can reach 65-75\u00b0C, causing <a href=\"https:\/\/test.viox.com\/my\/solar-combiner-box-overheating-causes-solutions\/\">nuisance fuse operations<\/a><\/li>\n<\/ul>\n<p>As a B2B manufacturer serving utility-scale solar EPCs, VIOX Electric has field-tested combiner box enclosures across aluminum, stainless steel, and UV-stabilized polycarbonate platforms in environments ranging from Arizona deserts to Norwegian coastal installations. This guide synthesizes thermal imaging data, accelerated UV testing results, and failure mode analysis to help you specify enclosures that prevent the two most common combiner box failure modes: <strong>thermal degradation<\/strong> \u1014\u103e\u1004\u1037\u103a <strong>UV-induced material breakdown<\/strong>.<\/p>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/VIOX-aluminum-combiner-box-thermal-imaging-showing-heat-dissipation-performance-under-solar-load.webp\" alt=\"VIOX aluminum combiner box thermal imaging showing heat dissipation performance under solar load\" width=\"100%\"><figcaption><em>Figure 1: Industrial thermal imaging comparison showing VIOX aluminum combiner box performance under full solar load. Left: Visible light installation view. Right: Thermal infrared profile showing effective heat dissipation with internal hotspots controlled at 58\u00b0C under 45\u00b0C ambient conditions.<\/em><\/figcaption><\/figure>\n<h2>The PV-Specific Challenge: Why Standard Junction Box Logic Fails<\/h2>\n<p>Photovoltaic combiner boxes operate under conditions that invalidate conventional enclosure selection criteria:<\/p>\n<h3>1. Continuous Internal Heat Generation<\/h3>\n<p>A 12-string combiner box carrying <strong>200A+ total DC current<\/strong> generates sustained heat from:<\/p>\n<ul>\n<li><strong>String fuses<\/strong> (10-15A each): Resistive heating proportional to I\u00b2R losses<\/li>\n<li><strong>DC circuit breakers<\/strong>: Contact resistance heating under load<\/li>\n<li><strong>Busbar joints<\/strong>: Micro-resistance at termination points<\/li>\n<li><strong>SPD varistor standby current<\/strong>: MOV leakage heating<\/li>\n<\/ul>\n<p>This internal heat generation is <strong>constant during daylight hours<\/strong>\u2014unlike AC junction boxes with intermittent loads. A 200A system generates approximately <strong>150-220W of continuous heat<\/strong> that must be dissipated to prevent component thermal runaway.<\/p>\n<h3>2. Extreme External Solar Loading<\/h3>\n<p>Combiner boxes mounted on solar racking systems experience:<\/p>\n<ul>\n<li><strong>Direct solar irradiance<\/strong>: 1000 W\/m\u00b2 heating the enclosure surface<\/li>\n<li><strong>Reflected irradiance<\/strong> from aluminum PV frames: Additional 150-250 W\/m\u00b2<\/li>\n<li><strong>No shade periods<\/strong>: 6-10 hours of continuous thermal loading daily<\/li>\n<\/ul>\n<p>Black or dark gray enclosures (common for aesthetic reasons) can reach <strong>85\u00b0C surface temperature<\/strong> in full sun\u2014turning the enclosure into a solar thermal collector rather than a protective housing.<\/p>\n<h3>3. UV Radiation Intensity<\/h3>\n<p>PV combiner boxes endure <strong>cumulative UV exposure<\/strong> equivalent to:<\/p>\n<ul>\n<li><strong>2,000-3,000 kWh\/m\u00b2\/year<\/strong> UV radiation (280-400nm wavelength)<\/li>\n<li><strong>10,000-15,000 hours<\/strong> of direct UV exposure annually<\/li>\n<li><strong>Zero UV protection<\/strong> \u1021\u101b\u102d\u1015\u103a\u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1017\u102d\u101e\u102f\u1000\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c\u1021\u1004\u103a\u1039\u1002\u102b\u101b\u1015\u103a\u1019\u103b\u102c\u1038\u1019\u103e<\/li>\n<\/ul>\n<p>\u1024 UV \u1010\u1004\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101e\u100a\u103a <strong>5-10x \u1015\u102d\u102f\u1019\u102d\u102f\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u100a\u103a<\/strong> \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1026\u1038\u1021\u1015\u103c\u1004\u103a\u1018\u1000\u103a\u1010\u103d\u1004\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1005\u1036\u1021\u1015\u103c\u1004\u103a\u1018\u1000\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1021\u1000\u102c\u1021\u101b\u1036\u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1010\u1005\u103a\u1005\u102d\u1010\u103a\u1010\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u101b\u102d\u1015\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030\u104b.<\/p>\n<blockquote>\n<p><strong>VIOX \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1012\u1031\u1010\u102c-<\/strong> \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f Nevada \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u101b\u102f\u1036\u1010\u103d\u1004\u103a\u104a 200A \u1010\u1004\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u101e\u1031\u102c \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>\u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 58-62\u00b0C<\/strong> 45\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a\u104b \u1010\u1030\u100a\u102e\u101e\u1031\u102c polycarbonate \u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u102d\u102f\u1037\u101b\u1031\u102c\u1000\u103a\u101b\u103e\u102d\u1001\u1032\u1037\u101e\u100a\u103a\u104b <strong>72-78\u00b0C \u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a<\/strong> \u1010\u1030\u100a\u102e\u101e\u1031\u102c\u101d\u1014\u103a\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a\u201414-16\u00b0C \u1001\u103c\u102c\u1038\u1014\u102c\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u1016\u103b\u1030\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u104f 60\u00b0C \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1021\u1001\u103c\u1031\u1001\u1036\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1005\u1031\u101e\u100a\u103a\u104b \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f \u1021\u101e\u1031\u1038\u1005\u102d\u1010\u103a\u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1019\u103e\u102f\u1000\u102d\u102f \u1000\u103c\u100a\u1037\u103a\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/solar-combiner-box-overheating-causes-solutions\/\">\u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1019\u103e\u102f\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1014\u100a\u103a\u1038\u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/a>.<\/p>\n<\/blockquote>\n<h2>\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1019\u103e\u102f- \u1019\u1030\u101c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038<\/h2>\n<h3>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036- \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1019\u103e\u102f<\/h3>\n<p>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u104f <strong>\u1021\u1015\u1030\u1005\u102e\u1038\u1000\u1030\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 205 W\/(m\u00b7K)<\/strong> \u1021\u1000\u102c\u1021\u101b\u1036\u1010\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1010\u1000\u103a\u1000\u103c\u103d\u101e\u1031\u102c\u1021\u1015\u1030\u101c\u1032\u101c\u103e\u101a\u103a\u1005\u1000\u103a\u1021\u1016\u103c\u1005\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1019\u103e\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1031\u102c\u1021\u1015\u1030\u101e\u100a\u103a \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1014\u1036\u101b\u1036\u1019\u103b\u102c\u1038\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1015\u103c\u102e\u1038 \u1016\u103c\u1014\u1037\u103a\u101d\u1031\u101e\u100a\u103a-<\/p>\n<ol>\n<li><strong>\u1010\u1015\u103a\u1006\u1004\u103a\u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036\u101e\u102d\u102f\u1037 \u1005\u102e\u1038\u1000\u1030\u1038\u1001\u103c\u1004\u103a\u1038\u104b<\/strong>: \u1021\u1015\u1030\u101e\u100a\u103a \u1021\u1000\u102c\u1021\u101b\u1036\u1019\u103e \u1005\u1004\u103a\u1010\u1004\u103a\u1005\u1014\u1005\u103a\u101e\u102d\u102f\u1037 \u1005\u102e\u1038\u1006\u1004\u103a\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u101c\u1031\u1011\u1032\u101e\u102d\u102f\u1037 \u101e\u101a\u103a\u101a\u1030\u1015\u102d\u102f\u1037\u1006\u1031\u102c\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/strong>: \u1015\u103c\u1004\u103a\u1015\u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1019\u103b\u102c\u1038\u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a \u101e\u1018\u102c\u101d\u1021\u1010\u102d\u102f\u1004\u103a\u1038 \u101e\u101a\u103a\u101a\u1030\u1015\u102d\u102f\u1037\u1006\u1031\u102c\u1004\u103a\u1015\u1031\u1038\u101e\u1031\u102c \u101c\u1031\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u101e\u102d\u102f\u1037 \u1013\u102c\u1010\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a\u1016\u103c\u102c\u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/strong>: \u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1016\u103c\u1004\u1037\u103a \u1016\u102f\u1036\u1038\u1021\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1019\u103b\u102c\u1038\u1019\u103e \u1021\u1014\u102e\u1021\u1031\u102c\u1000\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a\u1011\u102f\u1010\u103a\u101c\u103d\u103e\u1010\u103a\u1019\u103e\u102f<\/li>\n<\/ol>\n<p><strong>\u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u1019\u1039\u1018\u102c\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a-<\/strong> VIOX \u104f Arizona \u1005\u1000\u103a\u101b\u102f\u1036\u1010\u103d\u1004\u103a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c 12-\u1000\u103c\u102d\u102f\u1038\u104a 210A \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c (45\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u104a \u1014\u1031\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a\u1021\u1015\u103c\u100a\u1037\u103a) \u1010\u103d\u1004\u103a-<\/p>\n<ul>\n<li><strong>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1021\u1000\u102c\u1021\u101b\u1036<\/strong>: \u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 59\u00b0C\u104a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101e\u100a\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u104f 95% \u1010\u103d\u1004\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1014\u1031\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Polycarbonate \u1021\u1000\u102c\u1021\u101b\u1036<\/strong>: \u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 73\u00b0C\u104a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101e\u100a\u103a \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a 82% \u101e\u102d\u102f\u1037 \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1021\u1000\u102c\u1021\u101b\u1036\u104f \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1019\u103e\u102f <strong>13% \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u102c\u1038\u1006\u102e\u1038\u1001\u1032\u1037\u101e\u100a\u103a\u104b<\/strong> \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c \u1005\u1014\u1005\u103a throughput \u101c\u102d\u102f\u1021\u1015\u103a\u1019\u100a\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1024\u101e\u100a\u103a\u1019\u103e\u102c \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/solar-combiner-box-sizing-guide-expansion\/\">\u1005\u1014\u1005\u103a\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/a>.<\/p>\n<h3>Stainless Steel- \u101e\u1036\u1001\u103b\u1031\u1038\u1010\u1000\u103a\u1001\u103c\u1004\u103a\u1038 \u1021\u1000\u103b\u102d\u102f\u1038\u1000\u103b\u1031\u1038\u1007\u1030\u1038\u1019\u103b\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101c\u100a\u103a\u1015\u1004\u103a\u1038\u100a\u103e\u1005\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/h3>\n<p>Stainless steel \u104f <strong>\u1021\u1015\u1030\u1005\u102e\u1038\u1000\u1030\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 16 W\/(m\u00b7K) \u101e\u102c\u101b\u103e\u102d\u101e\u100a\u103a\u104b<\/strong>\u2014\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1011\u1000\u103a 92% \u1015\u102d\u102f\u1006\u102d\u102f\u1038\u101e\u100a\u103a\u2014\u101e\u102d\u101e\u102c\u1011\u1004\u103a\u101b\u103e\u102c\u1038\u101e\u1031\u102c \u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1005\u102d\u1014\u103a\u1001\u1031\u102b\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>\u1021\u1015\u1030\u1005\u102f\u1015\u102f\u1036\u1001\u103c\u1004\u103a\u1038<\/strong> \u1021\u1000\u102c\u1021\u101b\u1036\u1014\u1036\u101b\u1036\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1016\u103c\u1014\u1037\u103a\u101d\u1031\u1019\u100a\u1037\u103a\u1021\u1005\u102c\u1038<\/li>\n<li><strong>Hotspot \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1001\u103c\u1004\u103a\u1038<\/strong> \u1016\u103b\u1030\u1038\u1018\u101c\u1031\u102c\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1002\u102d\u1010\u103a\u1019\u103b\u102c\u1038\u1015\u1010\u103a\u101c\u100a\u103a<\/li>\n<li><strong>\u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u1021\u1010\u1004\u103a\u1038\u1021\u1000\u103b\u1015\u103a \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a<\/strong> \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u1000\u103a\u101b\u103e\u102d 150A \u1011\u1000\u103a\u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a<\/li>\n<\/ul>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1001\u103b\u1000\u103a-<\/strong> \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u101c\u1000\u103a\u101b\u103e\u102d\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a Stainless steel \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>NEMA 3R \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c louvers<\/strong> stainless steel \u1021\u1004\u103a\u1038\u1006\u1000\u103a\u1015\u102d\u102f\u1038\u1019\u103d\u103e\u102c\u1038\u1005\u1001\u101b\u1004\u103a\u1019\u103b\u102c\u1038 (\u1021\u1015\u1031\u102b\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1031\u102c\u1000\u103a\u1001\u103c\u1031\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038) \u1016\u103c\u1004\u1037\u103a<\/li>\n<li><strong>Thermostat-controlled 12VDC \u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038<\/strong> (PV \u1005\u1014\u1005\u103a\u1021\u101b\u1014\u103a\u1021\u1011\u103d\u1000\u103a\u1019\u103e \u1015\u102b\u101d\u102b)<\/li>\n<li><strong>\u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u1021\u1000\u102c\u1021\u101b\u1036\u1019\u103b\u102c\u1038<\/strong> (\u101e\u101a\u103a\u101a\u1030\u1015\u102d\u102f\u1037\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c\u1014\u1031\u101b\u102c\u104f \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 150%)<\/li>\n<\/ul>\n<p>\u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a stainless steel \u1000\u102d\u102f\u101e\u102c \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1005\u1031\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>\u1000\u1019\u103a\u1038\u101b\u102d\u102f\u1038\u1010\u1014\u103a\u1038\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/strong> \u1006\u102c\u1038\u1004\u103d\u1031\u1037\u101e\u100a\u103a \u101e\u1036\u1001\u103b\u1031\u1038\u1010\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u101c\u1000\u103a\u101b\u103e\u102d\u1014\u100a\u103a\u1038\u101e\u1031\u102c\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong> (\u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u2264100A) \u1021\u1015\u1030\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1019\u103e\u102f \u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c\u1014\u1031\u101b\u102c<\/li>\n<li><strong>\u1013\u102c\u1010\u102f\u1017\u1031\u1012\u1021\u101b \u101b\u1014\u103a\u101c\u102d\u102f\u101e\u1031\u102c\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1019\u103b\u102c\u1038<\/strong> (\u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1006\u102d\u102f\u1012\u103a\u1019\u103b\u102c\u1038) \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u101e\u100a\u103a \u101e\u1036\u1001\u103b\u1031\u1038\u1010\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<h3>Polycarbonate- \u1010\u1000\u103a\u1000\u103c\u103d\u101e\u1031\u102c\u1021\u1021\u1031\u1038\u1001\u1036\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1021\u1015\u1030\u101c\u103b\u103e\u1015\u103a\u1000\u102c<\/h3>\n<p>Polycarbonate \u104f <strong>\u1021\u1015\u1030\u1005\u102e\u1038\u1000\u1030\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 0.2 W\/(m\u00b7K)<\/strong>\u2014\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1011\u1000\u103a 1000x \u1015\u102d\u102f\u1006\u102d\u102f\u1038\u101e\u100a\u103a\u2014\u104e\u1004\u103a\u1038\u1000\u102d\u102f \u1021\u1015\u1030\u1016\u103c\u1014\u1037\u103a\u101d\u1031\u1019\u100a\u1037\u103a\u1021\u1005\u102c\u1038 \u1021\u1015\u1030\u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1016\u103c\u1005\u103a\u1005\u1031\u101e\u100a\u103a\u104b \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1015\u1030\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1015\u102d\u1010\u103a\u1019\u102d\u1014\u1031\u1015\u103c\u102e\u1038 \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c\u1021\u1006\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1021\u1011\u102d \u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c Threshold-<\/strong> \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a <strong>\u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u1000\u103a\u101b\u103e\u102d 150A<\/strong>, polycarbonate \u101e\u100a\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>\u101c\u1031\u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038<\/strong>: \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 50 CFM \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u1031\u1040\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a<\/li>\n<li><strong>\u101c\u1031\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong>: Cross-flow \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038 (\u1021\u1031\u102c\u1000\u103a\u1001\u103c\u1031\u1019\u103e \u101c\u1031\u1040\u1004\u103a\u104a \u1021\u1015\u1031\u102b\u103a\u1019\u103e \u101c\u1031\u1011\u103d\u1000\u103a)<\/li>\n<li><strong>\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>: \u1014\u103e\u102d\u102f\u1038\u1005\u1000\u103a\u1021\u1011\u103d\u1000\u103a\u1015\u102b\u101e\u1031\u102c \u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1021\u102c\u101b\u102f\u1036\u1001\u1036\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong>: \u1016\u103b\u1030\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f 60\u00b0C \u1021\u1005\u102c\u1038 75\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c\u1000\u102c\u101c:<\/strong> UV \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u101e\u1031\u102c polycarbonate \u101e\u100a\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u101b\u102c\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong>: 3-8 strings, \u226480A \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038<\/li>\n<li><strong>\u1021\u101c\u1004\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u101e\u102f\u1036\u1038 \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038<\/strong>: \u226412 strings, \u2264120A \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 (\u101c\u1031\u1040\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030)<\/li>\n<li><strong>\u101c\u102f\u1015\u103a\u1021\u102c\u1038\u1001 \u1000\u103c\u102e\u1038\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c\u1014\u1031\u101b\u102c\u1019\u103b\u102c\u1038<\/strong>: \u1018\u101a\u103a\u1019\u103e\u102c\u101c\u1032 <a href=\"https:\/\/test.viox.com\/my\/how-to-ground-an-electrical-panel\/\">grounding requirements<\/a> \u101e\u1010\u1039\u1010\u102f\u1021\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u1015\u103a\u1006\u1004\u103a\u101b\u1014\u103a \u1008\u1031\u1038\u1000\u103c\u102e\u1038\u1005\u1031\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<blockquote>\n<p><strong>VIOX \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f \u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a:<\/strong> Arizona \u1015\u103c\u100a\u103a\u1014\u101a\u103a\u104a Phoenix \u1019\u103c\u102d\u102f\u1037\u1010\u103d\u1004\u103a 8-string combiner box (\u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 140A) \u1000\u102d\u102f \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101e\u1031\u102c \u101b\u1000\u103a\u1015\u1031\u102b\u1004\u103a\u1038 90 \u1000\u103c\u102c \u1000\u103d\u1004\u103a\u1038\u1006\u1004\u103a\u1038\u101c\u1031\u1037\u101c\u102c\u1019\u103e\u102f\u1010\u1005\u103a\u1001\u102f \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1001\u1032\u1037\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a (\u101c\u1031\u1040\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1019\u101b\u103e\u102d)<\/strong>: \u1015\u103b\u1019\u103a\u1038\u1019\u103b\u103e\u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 61\u00b0C<\/li>\n<li><strong>Polycarbonate (passive vents)<\/strong>: \u1015\u103b\u1019\u103a\u1038\u1019\u103b\u103e\u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 74\u00b0C<\/li>\n<li><strong>Polycarbonate (50 CFM \u1015\u1014\u103a\u1000\u102c)<\/strong>: \u1015\u103b\u1019\u103a\u1038\u1019\u103b\u103e\u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 65\u00b0C<\/li>\n<\/ul>\n<p>\u101c\u1031\u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1005\u1000\u103a\u1019\u1015\u102b\u101e\u1031\u102c polycarbonate \u101a\u1030\u1014\u1005\u103a\u101e\u100a\u103a \u1000\u103c\u102f\u1036\u1010\u103d\u1031\u1037\u1001\u1032\u1037\u101b\u101e\u100a\u103a <strong>3 nuisance fuse operations<\/strong> \u1021\u1015\u1030\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1015\u103c\u102e\u1038\u1015\u103c\u100a\u1037\u103a\u1005\u102f\u1036\u101e\u1031\u102c <a href=\"https:\/\/test.viox.com\/my\/troubleshooting-solar-combiner-box-faults-fixes\/\">\u1015\u103c\u103f\u1014\u102c\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u100a\u103a\u1038\u101c\u1019\u103a\u1038\u1000\u102d\u102f \u1024\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u1000\u103c\u100a\u1037\u103a\u1015\u102b\u104b<\/a>.<\/p>\n<\/blockquote>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Thermal-conductivity-and-heat-dissipation-comparison-for-aluminum-stainless-steel-and-polycarbonate-combiner-boxes.webp\" alt=\"Thermal conductivity and heat dissipation comparison for aluminum, stainless steel, and polycarbonate combiner boxes\" width=\"100%\"><figcaption><em>\u1015\u102f\u1036 \u1042: \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a \u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u101b\u102f\u1015\u103a\u1016\u1031\u102c\u103a\u1011\u102c\u1038\u101e\u1031\u102c Isometric cutaway \u1015\u102f\u1036\u104b \u1018\u101a\u103a\u1018\u1000\u103a: \u1010\u1000\u103a\u1000\u103c\u103d\u101e\u1031\u102c\u1021\u1015\u1030\u1015\u1031\u1038\u1005\u1000\u103a\u1021\u1016\u103c\u1005\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u101e\u1031\u102c \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u104b \u1021\u101c\u101a\u103a: \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1015\u102d\u1010\u103a\u1006\u102d\u102f\u1037\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f\u1015\u103c\u101e\u101e\u1031\u102c Stainless steel \u104b \u100a\u102c\u1018\u1000\u103a: \u1021\u1015\u1030\u1000\u102d\u102f\u1016\u1019\u103a\u1038\u101a\u1030\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1021\u102c\u1014\u102d\u101e\u1004\u103a\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u1031\u102c Polycarbonate\u104b.<\/em><\/figcaption><\/figure>\n<h2>Circuit Breaker \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1001\u103c\u1004\u103a\u1038: \u100a\u1036\u1037\u1016\u103b\u1004\u103a\u1038\u101e\u1031\u102c \u1021\u1000\u102c\u101b\u1036\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u104f \u101d\u103e\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a<\/h2>\n<p>\u1021\u1000\u102c\u101b\u1036\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1014\u103e\u1004\u1037\u103a circuit breaker \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1021\u1000\u103c\u102c\u1038 \u1006\u1000\u103a\u1005\u1015\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1021\u102f\u1015\u103a\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/circuit-breaker-ambient-temperature-ratings-and-derating-factors\/\">\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1001\u103c\u1004\u103a\u1038\u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/a>. DC circuit breaker \u1021\u1019\u103b\u102c\u1038\u1005\u102f\u1000\u102d\u102f \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1021\u1010\u102d\u102f\u1004\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>40\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a<\/strong> \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1011\u102f\u1010\u103a\u101d\u1031\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1001\u103c\u1004\u103a\u1038\u1019\u103b\u1009\u103a\u1038\u1000\u103d\u1031\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030\u104b.<\/p>\n<h3>\u1005\u1014\u1005\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1021\u1015\u1031\u102b\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1001\u103c\u1004\u103a\u1038\u104f \u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f<\/h3>\n<p><strong>\u1025\u1015\u1019\u102c: 40\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1010\u103d\u1004\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c 20A DC breaker<\/strong><\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"5\" width=\"100%\">\n<thead>\n<tr>\n<th>\u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1000\u102c\u101b\u1036 \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a<\/th>\n<th>Breaker \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1001\u103c\u1004\u103a\u1038\u1021\u1001\u103b\u1000\u103a<\/th>\n<th>\u1011\u102d\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a<\/th>\n<th>\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>60\u00b0C (\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u1021\u1000\u102c\u101b\u1036)<\/td>\n<td>0.94<\/td>\n<td>18.8A<\/td>\n<td>6%<\/td>\n<\/tr>\n<tr>\n<td>70\u00b0C (stainless steel, \u101c\u1031\u1040\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1019\u1000\u1031\u102c\u1004\u103a\u1038)<\/td>\n<td>0.86<\/td>\n<td>17.2A<\/td>\n<td>14%<\/td>\n<\/tr>\n<tr>\n<td>75\u00b0C (polycarbonate, \u101c\u1031\u1040\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1019\u101b\u103e\u102d)<\/td>\n<td>0.80<\/td>\n<td>16.0A<\/td>\n<td>20%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a 20A breaker \u1015\u102b\u101e\u1031\u102c 12-string combiner box \u1010\u103d\u1004\u103a\u104a \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u1021\u101e\u102f\u1036\u1038\u1019\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u101e\u102d\u102f\u1037 \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1036\u1021\u1000\u102c\u1021\u101b\u1036<\/strong>: 226A \u1011\u102d\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a (12 \u00d7 18.8A)<\/li>\n<li><strong>Polycarbonate \u1021\u1000\u102c\u1021\u101b\u1036<\/strong>: 192A \u1011\u102d\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a (12 \u00d7 16.0A)<\/li>\n<\/ul>\n<p>\u101f\u102d <strong>34A \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a \u1001\u103b\u102d\u102f\u1037\u1010\u1032\u1037\u1001\u103c\u1004\u103a\u1038<\/strong> polycarbonate \u1021\u1000\u102c\u101b\u1036\u1010\u103d\u1004\u103a \u1006\u102d\u102f\u101c\u102c\u1014\u102c\u101b\u102e\u1019\u103b\u102c\u1038 \u1021\u1011\u103d\u1010\u103a\u1021\u1011\u102d\u1015\u103a\u101e\u102d\u102f\u1037 \u101b\u1031\u102c\u1000\u103a\u101b\u103e\u102d\u1001\u103b\u102d\u1014\u103a\u1021\u1010\u103d\u1004\u103a\u1038 PV array \u104f DC output \u1000\u102d\u102f \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d \u1021\u101e\u102f\u1036\u1038\u1019\u1001\u103b\u1014\u102d\u102f\u1004\u103a\u101f\u102f \u1006\u102d\u102f\u101c\u102d\u102f\u101e\u100a\u103a\u2014\u101b\u101c\u1012\u103a\u1021\u1014\u1031\u1016\u103c\u1004\u1037\u103a \u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1019\u103e\u102f \u101c\u103b\u1031\u102c\u1037\u1014\u100a\u103a\u1038\u101e\u103d\u102c\u1038\u1015\u103c\u102e\u1038 ROI \u101c\u103b\u1031\u102c\u1037\u1014\u100a\u103a\u1038\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h2>UV \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a: \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u1011\u103d\u1031\u1011\u103d\u1031 \u1015\u101c\u1010\u103a\u1005\u1010\u1005\u103a Combiner Box \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101c\u103d\u1014\u103a\u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u1005\u103d\u102c \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u101b\u101e\u1014\u100a\u103a\u1038\u104b<\/h2>\n<h3>ABS \u1018\u1031\u1038\u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a: \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u1011\u103d\u1031\u1011\u103d\u1031 \u1015\u101c\u1010\u103a\u1005\u1010\u1005\u103a\u1000\u102d\u102f \u1010\u102c\u1038\u1019\u103c\u1005\u103a\u1011\u102c\u1038\u101e\u1014\u100a\u103a\u1038\u104b<\/h3>\n<p><strong>Acrylonitrile Butadiene Styrene (ABS)<\/strong> \u1015\u101c\u1010\u103a\u1005\u1010\u1005\u103a\u2014\u1021\u102d\u1019\u103a\u1010\u103d\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c\u2014\u1015\u103c\u1004\u103a\u1015 PV \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u101c\u103d\u1014\u103a\u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u101e\u1031\u102c UV \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1001\u1036\u101a\u1030\u101e\u100a\u103a-<\/p>\n<p><strong>UV \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f \u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038:<\/strong><\/p>\n<ul>\n<li><strong>\u1040-\u1043 \u101c<\/strong>: \u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a \u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1019\u103b\u102c\u1038\u1000\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101b\u1031\u102c\u1004\u103a\u1019\u103e\u102d\u1014\u103a\u1001\u103c\u1004\u103a\u1038<\/li>\n<li><strong>\u1043-\u1046 \u101c<\/strong>: Polymer \u1000\u103d\u1004\u103a\u1038\u1006\u1000\u103a\u1015\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038 \u1005\u1010\u1004\u103a\u101e\u100a\u103a\u104a 15-25% \u1006\u103d\u1032\u1006\u1014\u1037\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1001\u103c\u1004\u103a\u1038<\/li>\n<li><strong>\u1046-\u1041\u1042 \u101c<\/strong>: \u1000\u103c\u103d\u1015\u103a\u1006\u1010\u103a\u101c\u102c\u1001\u103c\u1004\u103a\u1038\u104a \u1010\u1015\u103a\u1006\u1004\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1000\u103a\u1000\u103d\u1032\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038 \u1015\u1031\u102b\u103a\u101c\u102c\u1001\u103c\u1004\u103a\u1038<\/li>\n<li><strong>\u1041\u1042-\u1041\u1048 \u101c<\/strong>: \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1015\u102f\u1036\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u104a \u1021\u1000\u102c\u101b\u1036\u101e\u100a\u103a IP \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u1001\u103c\u1004\u103a\u1038 \u1019\u101b\u103e\u102d\u1010\u1031\u102c\u1037\u1015\u102b\u104b<\/li>\n<\/ul>\n<p><strong>\u1000\u103d\u1004\u103a\u1038\u1006\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f \u1025\u1015\u1019\u102c:<\/strong> 2022 \u1001\u102f\u1014\u103e\u1005\u103a \u1000\u101a\u103a\u101c\u102e\u1016\u102d\u102f\u1038\u1014\u102e\u1038\u101a\u102c\u1038 \u1006\u102d\u102f\u101c\u102c\u101c\u101a\u103a\u101a\u102c\u1010\u103d\u1004\u103a ABS \u1021\u1000\u102c\u101b\u1036\u1015\u102b\u101e\u1031\u102c combiner box 47 \u1001\u102f\u101e\u100a\u103a 14 \u101c\u1021\u1010\u103d\u1004\u103a\u1038 \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1001\u1032\u1037\u101e\u100a\u103a\u104b \u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u1021\u101b \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101e\u100a\u103a \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u101e\u103d\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u103c\u101e\u1001\u1032\u1037\u101e\u100a\u103a\u104b <strong>68% of original impact strength<\/strong>\u2014cracks developed around cable entry points, allowing moisture ingress that destroyed SPDs and breakers. Total replacement cost exceeded $180,000. See detailed material failure analysis in our <a href=\"https:\/\/test.viox.com\/my\/why-outdoor-isolators-fail-polycarbonate-vs-abs\/\">polycarbonate vs ABS guide<\/a>.<\/p>\n<h3>UV-Stabilized Polycarbonate: Engineered for Solar Applications<\/h3>\n<p>Premium polycarbonate formulations incorporate <strong>UV stabilizer packages<\/strong> that absorb UV photons before they break polymer chains:<\/p>\n<p><strong>Stabilizer Chemistry:<\/strong><\/p>\n<ul>\n<li><strong>Benzotriazole UV absorbers<\/strong>: Absorb UV-A (315-400nm) and UV-B (280-315nm)<\/li>\n<li><strong>HALS (Hindered Amine Light Stabilizers)<\/strong>: Scavenge free radicals created by UV exposure<\/li>\n<li><strong>Concentration<\/strong>: \u22650.5% by weight for 10+ year outdoor performance<\/li>\n<\/ul>\n<p><strong>VIOX Polycarbonate Specification:<\/strong><\/p>\n<ul>\n<li><strong>UV stabilizer content<\/strong>: 0.8% by weight (60% above industry minimum)<\/li>\n<li><strong>ASTM G154 accelerated weathering<\/strong>: &lt;12% tensile strength loss after 5,000 hours xenon arc exposure<\/li>\n<li><strong>Field-proven lifespan<\/strong>: 15-20 years in direct sun exposure<\/li>\n<li><strong>Flame rating<\/strong>: UL94 V0 (self-extinguishing within 10 seconds)<\/li>\n<\/ul>\n<p><strong>Application Suitability:<\/strong> UV-stabilized polycarbonate combiner boxes are viable for:<\/p>\n<ul>\n<li><strong>\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u101b\u102c\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong>: 3-8 strings, \u226480A \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038<\/li>\n<li><strong>Small commercial<\/strong>: \u226412 strings, \u2264120A with proper thermal management<\/li>\n<li><strong>Moderate climates<\/strong>: Regions with \u22642,500 kWh\/m\u00b2\/year UV exposure<\/li>\n<li><strong>\u1018\u1010\u103a\u1002\u103b\u1000\u103a\u101e\u1010\u102d\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u102e\u1019\u1036\u1000\u102d\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/strong>: Where 30-40% cost savings justify 15-20 year vs 25+ year lifespan<\/li>\n<\/ul>\n<p><strong>Do NOT use polycarbonate for:<\/strong><\/p>\n<ul>\n<li><strong>Utility-scale farms<\/strong>: High-current boxes generate excessive heat<\/li>\n<li><strong>\u1000\u1014\u1039\u1010\u102c\u101b\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>: UV intensity exceeds material capability<\/li>\n<li><strong>Coastal environments<\/strong>: Salt air accelerates polymer degradation<\/li>\n<li><strong>1500V systems<\/strong>: Higher voltage stringers require maximum reliability<\/li>\n<\/ul>\n<h3>Aluminum &amp; Stainless Steel: Inherent UV Immunity<\/h3>\n<p>Metal enclosures with proper surface finishes are <strong>immune to UV degradation<\/strong>:<\/p>\n<p><strong>\u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1016\u103c\u1004\u1037\u103a \u1016\u102f\u1036\u1038\u1021\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a:<\/strong><\/p>\n<ul>\n<li><strong>Coating composition<\/strong>: Cross-linked polyester or polyester-TGIC hybrid resin<\/li>\n<li><strong>\u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a<\/strong>: 10+ year gloss retention, zero structural degradation<\/li>\n<li><strong>\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a<\/strong>: ASTM D2244 color fade \u0394E &lt;5 after 5,000 hours QUV exposure<\/li>\n<\/ul>\n<p><strong>316L Stainless Steel:<\/strong><\/p>\n<ul>\n<li><strong>Chromium oxide passive layer<\/strong>: Self-healing protective film<\/li>\n<li><strong>Zero UV sensitivity<\/strong>: Stainless steel molecular structure unaffected by UV photons<\/li>\n<li><strong>Surface finish<\/strong>: Brushed 2B finish or electropolished for maximum corrosion resistance<\/li>\n<\/ul>\n<h2>Class II Double Insulation: Polycarbonate\u2019s Installation Advantage<\/h2>\n<p>Polycarbonate combiner boxes engineered to <strong>IEC 61140 Class II requirements<\/strong> eliminate the need for enclosure grounding through double insulation design:<\/p>\n<p><strong>Double Insulation Architecture:<\/strong><\/p>\n<ol>\n<li><strong>Basic insulation<\/strong>: Primary barrier between live DC terminals and enclosure interior (DIN rail mounted components with 8mm creepage distances)<\/li>\n<li><strong>Supplementary insulation<\/strong>: Secondary barrier preventing contact with live parts even if basic insulation fails (molded enclosure with 3mm minimum wall thickness)<\/li>\n<\/ol>\n<p><strong>Installation Impact:<\/strong><\/p>\n<ul>\n<li><strong>No ground wire to enclosure<\/strong>: Saves 1\u00d7 #10 AWG grounding conductor and lug per unit<\/li>\n<li><strong>No ground bond verification<\/strong>: Eliminates testing step during commissioning<\/li>\n<li><strong>Faster installation<\/strong>: Reduces labor time by 12-18 minutes per combiner box<\/li>\n<li><strong>\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u1000\u103a\u101e\u102c\u1010\u101a\u103a\u104b<\/strong>: Eliminates copper grounding wire and compression lugs<\/li>\n<\/ul>\n<p><strong>Labor Cost Analysis (US Market):<\/strong><\/p>\n<ul>\n<li><strong>Electrician rate<\/strong>: $85\/hour average<\/li>\n<li><strong>\u1021\u1001\u103b\u102d\u1014\u103a\u1000\u102f\u1014\u103a\u101e\u1000\u103a\u101e\u102c\u1001\u103c\u1004\u103a\u1038<\/strong>: 15 minutes per unit = $21.25 labor reduction<\/li>\n<li><strong>Material savings<\/strong>: Ground wire + lug = $8-12 per unit<\/li>\n<li><strong>Total per-unit savings<\/strong>: $29-33<\/li>\n<\/ul>\n<p>For a 100-unit utility-scale deployment, Class II polycarbonate boxes save <strong>$2,900-3,300 in installation costs<\/strong> compared to metal enclosures requiring <a href=\"https:\/\/test.viox.com\/my\/how-to-ground-an-electrical-panel\/\">proper grounding installation<\/a>.<\/p>\n<p><strong>Critical Limitations:<\/strong><\/p>\n<ul>\n<li>Class II double insulation requires <strong>unbroken plastic enclosure<\/strong>\u2014any metal knockout or cable gland negates the protection<\/li>\n<li><strong>Not suitable for 1500V systems<\/strong>: Higher voltage requires supplementary protective earthing per <a href=\"https:\/\/test.viox.com\/my\/1000v-solar-combiner-box-design-compliance-guide\/\">IEC 62109-1<\/a><\/li>\n<li><strong>RSD integration complexity<\/strong>: Rapid shutdown equipment often requires metal enclosures for EMI shielding<\/li>\n<\/ul>\n<h2>Detailed Performance Comparison for PV Combiner Boxes<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"5\" width=\"100%\">\n<thead>\n<tr>\n<th>Performance Parameter<\/th>\n<th>Aluminum (Powder-Coated)<\/th>\n<th>Stainless Steel 316L<\/th>\n<th>UV-Stabilized Polycarbonate<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Thermal Conductivity<\/strong><\/td>\n<td>205 W\/(m\u00b7K)<\/td>\n<td>16 W\/(m\u00b7K)<\/td>\n<td>0.2 W\/(m\u00b7K)<\/td>\n<\/tr>\n<tr>\n<td><strong>Heat Dissipation (200A load)<\/strong><\/td>\n<td>Excellent (\u221214\u00b0C vs plastic)<\/td>\n<td>Poor (requires ventilation)<\/td>\n<td>Poor (insulator)<\/td>\n<\/tr>\n<tr>\n<td><strong>Max Recommended Current<\/strong><\/td>\n<td>300A+<\/td>\n<td>150A (with forced cooling)<\/td>\n<td>80A residential, 120A commercial with fans<\/td>\n<\/tr>\n<tr>\n<td><strong>Breaker Derating (45\u00b0C ambient)<\/strong><\/td>\n<td>6% capacity loss<\/td>\n<td>12-14% capacity loss<\/td>\n<td>18-20% capacity loss<\/td>\n<\/tr>\n<tr>\n<td><strong>UV Resistance (outdoor exposure)<\/strong><\/td>\n<td>Excellent (coated)<\/td>\n<td>Excellent (inherent)<\/td>\n<td>Good (stabilizer-dependent)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1019\u103b\u103e\u1031\u102c\u103a\u1019\u103e\u1014\u103a\u1038\u101e\u1000\u103a\u1010\u1019\u103a\u1038<\/strong><\/td>\n<td>25+ \u1014\u103e\u1005\u103a<\/td>\n<td>30+ \u1014\u103e\u1005\u103a<\/td>\n<td>\u1041\u1045-\u1042\u1040 \u1014\u103e\u1005\u103a<\/td>\n<\/tr>\n<tr>\n<td><strong>Coastal Salt Fog Resistance<\/strong><\/td>\n<td>Good (marine coating required)<\/td>\n<td>Excellent (316L grade)<\/td>\n<td>Fair (UV+salt accelerates aging)<\/td>\n<\/tr>\n<tr>\n<td><strong>Class II Double Insulation<\/strong><\/td>\n<td>No (requires grounding)<\/td>\n<td>No (requires grounding)<\/td>\n<td>Yes (eliminates grounding)<\/td>\n<\/tr>\n<tr>\n<td><strong>Installation Labor Time<\/strong><\/td>\n<td>1.0\u00d7 baseline<\/td>\n<td>1.1\u00d7 (heavier units)<\/td>\n<td>0.85\u00d7 (no grounding)<\/td>\n<\/tr>\n<tr>\n<td><strong>Grounding Wire\/Hardware Cost<\/strong><\/td>\n<td>$8-12 per unit<\/td>\n<td>$8-12 per unit<\/td>\n<td>$0 (not required)<\/td>\n<\/tr>\n<tr>\n<td><strong>Suitable for 1500V Systems<\/strong><\/td>\n<td>\u101f\u102f\u1010\u103a\u1000\u1032\u1037<\/td>\n<td>\u101f\u102f\u1010\u103a\u1000\u1032\u1037<\/td>\n<td>No (requires metal for safety)<\/td>\n<\/tr>\n<tr>\n<td><strong>EMI Shielding (RSD integration)<\/strong><\/td>\n<td>\u1000\u1031\u102c\u1004\u103a\u1038\u1010\u101a\u103a\u104b<\/td>\n<td>\u1019\u103c\u1010\u103a\u101e\u1031\u102c<\/td>\n<td>\u1019\u101b\u103e\u102d\u1015\u102b (\u101e\u1010\u1039\u1010\u102f\u1007\u1000\u102c \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1010\u102d\u102f\u1000\u103a\u1001\u102d\u102f\u1000\u103a\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a (IK \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a)<\/strong><\/td>\n<td>IK09 (\u1015\u102f\u1036\u1015\u103b\u1000\u103a\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104a \u1010\u1036\u1006\u102d\u1015\u103a\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a)<\/td>\n<td>IK08 (\u1015\u103c\u1004\u103a\u1038\u1011\u1014\u103a\u101e\u1031\u102c \u1010\u102d\u102f\u1000\u103a\u1001\u102d\u102f\u1000\u103a\u1019\u103e\u102f\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u1000\u103a\u1000\u103d\u1032\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a)<\/td>\n<td>IK10 (\u1000\u103b\u102d\u102f\u1038\u1015\u1032\u1037\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u1018\u1032 \u1000\u103d\u1031\u1038\u100a\u103d\u103e\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1019\u102e\u1038\u101c\u1031\u102c\u1004\u103a\u1019\u103e\u102f \u1021\u1015\u103c\u102f\u1021\u1019\u1030<\/strong><\/td>\n<td>\u1019\u102e\u1038\u1019\u101c\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c<\/td>\n<td>\u1019\u102e\u1038\u1019\u101c\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c<\/td>\n<td>UL94 V0 (\u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u1004\u103c\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a (\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101c\u103b\u103e\u1004\u103a)<\/strong><\/td>\n<td>1.0\u00d7 baseline<\/td>\n<td>1.6-1.8\u00d7<\/td>\n<td>0.65-0.75\u00d7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/PV-combiner-box-thermal-performance-and-UV-degradation-comparison-for-aluminum-stainless-steel-and-polycarbonate-enclosures.webp\" alt=\"PV combiner box thermal performance and UV degradation comparison for aluminum, stainless steel, and polycarbonate enclosures\" width=\"100%\"><figcaption><em>\u1015\u102f\u1036 \u1043- \u1021\u1015\u1030\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1014\u103e\u1004\u1037\u103a \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u103c\u101e\u1031\u102c \u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a\u1015\u102f\u1036\u1005\u1036\u1021\u1015\u103c\u100a\u1037\u103a\u1021\u1005\u102f\u1036\u104b \u1018\u101a\u103a\u1018\u1000\u103a- \u1015\u102d\u102f\u101c\u102e\u1000\u102c\u1018\u103d\u1014\u103a\u1014\u102d\u1010\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u101e\u101e\u100a\u1037\u103a \u1021\u1015\u1030\u1005\u103d\u1014\u1037\u103a\u1011\u102f\u1010\u103a\u1019\u103e\u102f \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u104b \u100a\u102c\u1018\u1000\u103a- 2,500 kWh\/m\u00b2\/\u1014\u103e\u1005\u103a \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101e\u1000\u103a\u1010\u1019\u103a\u1038 \u1019\u103b\u103e\u1031\u102c\u103a\u1019\u103e\u1014\u103a\u1038\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1015\u103c\u101e\u101e\u100a\u1037\u103a \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u104b.<\/em><\/figcaption><\/figure>\n<h2>PV \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/h2>\n<h3>\u1021\u101e\u102f\u1036\u1038\u101d\u1004\u103a\u101e\u1031\u102c \u1005\u1000\u1031\u1038 \u1006\u102d\u102f\u101c\u102c\u101c\u101a\u103a\u101a\u102c\u1019\u103b\u102c\u1038 (&gt;5MW)<\/h3>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1001\u103b\u1000\u103a- \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a (\u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1016\u103c\u1004\u1037\u103a \u1021\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c\u104a \u1000\u1019\u103a\u1038\u101b\u102d\u102f\u1038\u1010\u1014\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u101b\u1031\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u1006\u1004\u1037\u103a)<\/strong><\/p>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1019\u103b\u103e\u1010\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u1015\u1030\u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1019\u103e\u102f<\/strong>: \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u101c\u1000\u103a\u101b\u103e\u102d 200-300A \u101e\u100a\u103a passive \u1021\u1015\u1030\u1005\u103d\u1014\u1037\u103a\u1011\u102f\u1010\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u1031\u102c\u1004\u103a\u1038\u1006\u102d\u102f\u101e\u100a\u103a\u2014\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a breaker \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a<\/li>\n<li><strong>\u1005\u1000\u1031\u1038 \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038<\/strong>: \u101c\u101a\u103a\u101a\u102c\u1010\u1005\u103a\u1001\u102f\u101c\u103b\u103e\u1004\u103a \u101a\u1030\u1014\u1005\u103a \u1041\u1040\u1040-\u1045\u1040\u1040\u2014\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u104f \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a-\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1021\u1001\u103b\u102d\u102f\u1038\u101e\u100a\u103a \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 ROI \u1000\u102d\u102f \u1015\u1031\u1038\u1005\u103d\u1019\u103a\u1038\u101e\u100a\u103a<\/li>\n<li><strong>\u1042\u1045 \u1014\u103e\u1005\u103a \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a \u1021\u102c\u1019\u1001\u1036<\/strong>: \u101e\u1010\u1039\u1010\u102f\u1021\u1000\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a PPA \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u101e\u100a\u103a<\/li>\n<li><strong>\u1005\u1036\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038\u104b<\/strong>: \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a \u1010\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1021\u1010\u102d\u102f\u1004\u103a\u1038\u1021\u1010\u102c\u1016\u103c\u1004\u1037\u103a O&amp;M \u101c\u102f\u1015\u103a\u1011\u102f\u1036\u1038\u101c\u102f\u1015\u103a\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u101e\u1019\u1010\u103a\u1010\u100a\u103a\u1038\u1016\u103c\u1005\u103a\u1005\u1031\u101e\u100a\u103a<\/li>\n<\/ul>\n<p><strong>\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1021\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038 \u1021\u1011\u1030<\/strong>: \u101a\u1031\u1018\u1030\u101a\u103b \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u226560 \u1019\u102d\u102f\u1000\u103a\u1001\u101b\u103d\u1014\u103a\u104a \u1000\u1019\u103a\u1038\u101b\u102d\u102f\u1038\u1010\u1014\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u226580 \u1019\u102d\u102f\u1000\u103a\u1001\u101b\u103d\u1014\u103a (\u1015\u1004\u103a\u101c\u101a\u103a\u1019\u103e \u1041\u1040 \u1019\u102d\u102f\u1004\u103a\u1021\u1010\u103d\u1004\u103a\u1038)<\/li>\n<li><strong>\u1021\u1015\u1030\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038<\/strong>: \u1000\u103c\u102d\u102f\u1038 \u1048 \u1000\u103c\u102d\u102f\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u1031\u102c \u1021\u1000\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a NEMA 3R louvers \u1015\u102b\u101e\u1031\u102c \u101e\u1018\u102c\u101d \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a<\/li>\n<li><strong>\u101f\u102c\u1037\u1012\u103a\u101d\u1032<\/strong>: \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u103d\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u104a \u1001\u1031\u102b\u1000\u103a\u101b\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1031\u102c\u1010\u1036\u1019\u103b\u102c\u1038\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101e\u100a\u103a 316 \u101e\u1036\u1019\u100f\u102d\u1016\u103c\u1005\u103a\u101b\u1019\u100a\u103a<\/li>\n<li><strong>Grounding<\/strong>: \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b <a href=\"https:\/\/test.viox.com\/my\/how-to-ground-an-electrical-panel\/\">\u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1014\u100a\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/a> racking \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1015\u102f\u1036\u1021\u1010\u103d\u1000\u103a \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 #6 AWG \u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030<\/li>\n<\/ul>\n<p><strong>\u1000\u1019\u103a\u1038\u101b\u102d\u102f\u1038\u1010\u1014\u103a\u1038 \u1021\u101e\u102f\u1036\u1038\u101d\u1004\u103a\u101e\u1031\u102c \u1005\u1000\u1031\u1038 \u1001\u103c\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a-<\/strong> \u1006\u102c\u1038\u1004\u1014\u103a\u101b\u1031\u1019\u103e \u1045 \u1019\u102d\u102f\u1004\u103a\u1021\u1010\u103d\u1004\u103a\u1038\u101b\u103e\u102d \u1015\u101b\u1031\u102c\u1002\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u1004\u1037\u103a\u101e\u100a\u103a <strong>316L \u101e\u1036\u1019\u100f\u102d<\/strong> \u1021\u1015\u1030\u1005\u102d\u1014\u103a\u1001\u1031\u102b\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101b\u103e\u102d\u1014\u1031\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038\u2014\u1021\u1015\u1030\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a \u1019\u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1011\u1000\u103a \u101e\u1036\u1001\u103b\u1031\u1038\u1010\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1001\u103c\u1031\u1000 \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a\u104b \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u101c\u1000\u103a\u101b\u103e\u102d 150A \u1011\u1000\u103a \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u1031\u102c \u1021\u1000\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1010\u1004\u103a\u1038\u1021\u1000\u103b\u1015\u103a \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1000\u102d\u102f \u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1015\u102b\u104b.<\/p>\n<h3>\u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a \u1021\u1019\u102d\u102f\u1038 (50kW-500kW)<\/h3>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1001\u103b\u1000\u103a- \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a (\u1005\u1036)\u104a \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u101e\u1031\u102c \u1015\u102d\u102f\u101c\u102e\u1000\u102c\u1018\u103d\u1014\u103a\u1014\u102d\u1010\u103a (\u2264120A \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u102c)<\/strong><\/p>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1019\u103b\u103e\u1010\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u1015\u1030\u101d\u1014\u103a\u1019\u103b\u102c\u1038<\/strong>: \u1015\u102f\u1036\u1019\u103e\u1014\u103a \u101c\u1000\u103a\u101b\u103e\u102d 100-200A \u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038\u2014\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u1031\u102c 12-18\u00b0C \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a <a href=\"https:\/\/test.viox.com\/my\/solar-combiner-box-overheating-causes-solutions\/\">\u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1019\u103e\u102f \u1015\u103c\u103f\u1014\u102c\u1019\u103b\u102c\u1038<\/a><\/li>\n<li><strong>\u1021\u1019\u102d\u102f\u1038\u1015\u1031\u102b\u103a\u101e\u102d\u102f\u1037 \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u101b\u1014\u103a \u1005\u102d\u1014\u103a\u1001\u1031\u102b\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>: \u1015\u1031\u102b\u1037\u1015\u102b\u1038\u101e\u1031\u102c \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101b\u103e\u102d\u1015\u103c\u102e\u1038\u101e\u102c\u1038 \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1015\u102f\u1036\u1019\u103b\u102c\u1038\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a crane \u1019\u1015\u102b\u1018\u1032 \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u101b\u102d\u102f\u1038\u101b\u103e\u1004\u103a\u1038\u1005\u1031\u101e\u100a\u103a<\/li>\n<li><strong>\u101c\u102f\u1015\u103a\u1021\u102c\u1038\u1005\u101b\u102d\u1010\u103a \u1011\u102d\u101c\u103d\u101a\u103a\u101b\u103e\u101c\u103d\u101a\u103a<\/strong>: \u101c\u102f\u1015\u103a\u1021\u102c\u1038\u1005\u101b\u102d\u1010\u103a \u1000\u103c\u102e\u1038\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c \u1008\u1031\u1038\u1000\u103d\u1000\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a (\u1000\u101a\u103a\u101c\u102e\u1016\u102d\u102f\u1038\u1014\u102e\u1038\u101a\u102c\u1038\u104a \u1014\u101a\u1030\u1038\u101a\u1031\u102c\u1000\u103a)\u104a \u1015\u102d\u102f\u101c\u102e\u1000\u102c\u1018\u103d\u1014\u103a\u1014\u102d\u1010\u103a\u104f Class II \u1014\u103e\u1005\u103a\u1011\u1015\u103a\u101c\u103b\u103e\u1015\u103a\u1000\u102c\u101e\u100a\u103a \u101a\u1030\u1014\u1005\u103a\u1010\u1015\u103a\u1006\u1004\u103a\u1005\u101b\u102d\u1010\u103a $25-35 \u1000\u102d\u102f \u101e\u1000\u103a\u101e\u102c\u1005\u1031\u101e\u100a\u103a<\/li>\n<\/ul>\n<p><strong>\u1015\u102d\u102f\u101c\u102e\u1000\u102c\u1018\u103d\u1014\u103a\u1014\u102d\u1010\u103a \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u1001\u103c\u1031\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u1004\u103a\u1038\u1012\u102d\u102f\u1038-<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 \u101c\u1000\u103a\u101b\u103e\u102d<\/strong>: \u1021\u1010\u1004\u103a\u1038\u1021\u1000\u103b\u1015\u103a \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a louvers \u1015\u102b\u101e\u1031\u102c \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 120A<\/li>\n<li><strong>\u1000\u103c\u102d\u102f\u1038\u1021\u101b\u1031\u1021\u1010\u103d\u1000\u103a<\/strong>: \u22648 \u1000\u103c\u102d\u102f\u1038<\/li>\n<li><strong>\u101b\u102c\u101e\u102e\u1025\u1010\u102f<\/strong>: \u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f (&lt;2,500 kWh\/m\u00b2\/\u1014\u103e\u1005\u103a)<\/li>\n<li><strong>\u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a<\/strong>: \u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u1016\u103c\u1010\u103a\u1005\u102e\u1038\u1006\u1004\u103a\u1038\u101e\u1031\u102c louvers (\u1021\u1031\u102c\u1000\u103a\u1001\u103c\u1031\u1019\u103e \u101c\u1031\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a\u104a \u1011\u102d\u1015\u103a\u1019\u103e \u101c\u1031\u1011\u103d\u1000\u103a\u1015\u1031\u102b\u1000\u103a) 50 CFM \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 \u101c\u1031\u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030<\/li>\n<\/ul>\n<p><strong>Do NOT use polycarbonate for:<\/strong><\/p>\n<ul>\n<li><strong>\u1000\u103c\u102d\u102f\u1038 \u1048 \u1000\u103c\u102d\u102f\u1038\u1011\u1000\u103a \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/strong>: \u1021\u1015\u1030\u101d\u1014\u103a\u101e\u100a\u103a \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u100a\u103a<\/li>\n<li><strong>\u1000\u1014\u1039\u1010\u102c\u101b\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>: \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1015\u103c\u1004\u103a\u1038\u1011\u1014\u103a\u1019\u103e\u102f (3,000+ kWh\/m\u00b2\/\u1014\u103e\u1005\u103a) \u101e\u100a\u103a \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1000\u102d\u102f \u1041\u1040-\u1041\u1042 \u1014\u103e\u1005\u103a\u1021\u1011\u102d \u1010\u102d\u102f\u1005\u1031\u101e\u100a\u103a<\/li>\n<li><strong>\u1005\u1000\u103a\u1019\u103e\u102f \u1021\u1019\u102d\u102f\u1038\u1019\u103b\u102c\u1038<\/strong>: \u1013\u102c\u1010\u102f\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f\u101e\u100a\u103a \u1015\u102d\u102f\u101c\u102e\u1019\u102c \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1021\u101b\u103e\u102d\u1014\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1015\u1031\u1038\u101e\u100a\u103a<\/li>\n<\/ul>\n<h3>\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038 (3kW-15kW)<\/h3>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1001\u103b\u1000\u103a- \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u101e\u1031\u102c \u1015\u102d\u102f\u101c\u102e\u1000\u102c\u1018\u103d\u1014\u103a\u1014\u102d\u1010\u103a<\/strong><\/p>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/VIOX-600V-DC-solar-combiner-box-installed-on-residential-home-exterior-wall-with-rooftop-solar-panels-visible.webp\" alt=\"VIOX 600V DC solar combiner box installed on residential home exterior wall with rooftop solar panels visible\" width=\"100%\"><figcaption><em>\u1015\u102f\u1036 \u1044- \u1021\u102d\u1019\u103a\u1001\u1031\u102b\u1004\u103a\u1019\u102d\u102f\u1038 \u1006\u102d\u102f\u101c\u102c\u1015\u103c\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1015\u1031\u1038\u1014\u1031\u101e\u1031\u102c \u1021\u1015\u103c\u1004\u103a\u1014\u1036\u101b\u1036\u1010\u103d\u1004\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c VIOX 600V DC \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101e\u1031\u1010\u1039\u1010\u102c\u1000\u102d\u102f \u1015\u103c\u101e\u101e\u100a\u1037\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u104b \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1005\u1000\u1031\u1038\u1000\u102d\u102f \u101e\u1010\u102d\u1015\u103c\u102f\u1015\u102b\u104b.<\/em><\/figcaption><\/figure>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1019\u103b\u103e\u1010\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li><strong>\u101c\u1000\u103a\u101b\u103e\u102d \u101d\u1014\u103a\u1019\u103b\u102c\u1038<\/strong>: \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u1000\u103d\u102c\u1021\u101d\u1031\u1038 30-80A\u2014\u1015\u102d\u102f\u101c\u102e\u1000\u102c\u1018\u103d\u1014\u103a\u1014\u102d\u1010\u103a \u1021\u1015\u1030\u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1019\u103e\u102f \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1021\u1010\u103d\u1004\u103a\u1038<\/li>\n<li><strong>\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1011\u102d\u101c\u103d\u101a\u103a\u101b\u103e\u101c\u103d\u101a\u103a<\/strong>: 30-40% \u1014\u102d\u1019\u1037\u103a\u101e\u1031\u102c \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u100a\u103a \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u1005\u1000\u1031\u1038\u1010\u103d\u1004\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a<\/li>\n<li><strong>\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1021\u1019\u103c\u1014\u103a\u1014\u103e\u102f\u1014\u103a\u1038<\/strong>: Class II \u1014\u103e\u1005\u103a\u1011\u1015\u103a\u101c\u103b\u103e\u1015\u103a\u1000\u102c\u101e\u100a\u103a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u1031\u1038\u1015\u103c\u102e\u1038 \u101c\u102f\u1015\u103a\u1021\u102c\u1038\u1005\u101b\u102d\u1010\u103a \u1000\u103c\u102e\u1038\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c \u1012\u1031\u101e\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1015\u1031\u1038\u101e\u100a\u103a<\/li>\n<li><strong>Impact resistance<\/strong>: IK10 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u1019\u103b\u102c\u1038 (\u1019\u103c\u1000\u103a\u101b\u102d\u1010\u103a\u1005\u1000\u103a\u104a \u1019\u102d\u102f\u1038\u101e\u102e\u1038\u104a \u1021\u1000\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u1000\u103a\u1019\u103b\u102c\u1038 \u1015\u103c\u102f\u1010\u103a\u1000\u103b\u1001\u103c\u1004\u103a\u1038) \u1019\u103e \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong><\/p>\n<ul>\n<li><strong>UV stabilizer content<\/strong>: \u1021\u101c\u1031\u1038\u1001\u103b\u102d\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u22650.5% (ASTM G154 \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f \u1021\u1005\u102e\u101b\u1004\u103a\u1001\u1036\u1005\u102c\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b)<\/li>\n<li><strong>Flame rating<\/strong>: UL94 V0 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a V1 \u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a<\/strong>: 60A \u1011\u1000\u103a\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1004\u103a\u1038\u1006\u1000\u103a\u1015\u102d\u102f\u1038\u1019\u103d\u103e\u102c\u1038 \u1000\u102c\u1000\u103d\u101a\u103a\u101e\u100a\u1037\u103a \u1007\u1000\u102c\u1015\u102b\u101e\u1031\u102c Passive louvers \u1019\u103b\u102c\u1038<\/li>\n<li><strong>\u101f\u102c\u1037\u1012\u103a\u101d\u1032<\/strong>: \u101e\u1036\u1019\u100f\u102d\u1016\u103c\u1004\u1037\u103a \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1001\u102b\u1038\u1015\u1010\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1031\u102c\u1010\u1036\u1019\u103b\u102c\u1038 (\u101e\u103d\u1015\u103a\u101b\u100a\u103a\u1005\u102d\u1019\u103a \u101e\u1036\u101e\u100a\u103a \u1010\u1016\u103c\u100a\u103a\u1038\u1016\u103c\u100a\u103a\u1038\u1005\u102c\u1038\u101e\u100a\u103a)<\/li>\n<\/ul>\n<p><strong>\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038 \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1001\u103b\u1000\u103a<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u101b\u100a\u103a\u1021\u101e\u103d\u1031\u1038\u1019\u103c\u1004\u1037\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>: \u1042\u1045 \u1014\u103e\u1005\u103a \u1021\u102c\u1019\u1001\u1036\u101e\u100a\u103a \u101e\u1010\u1039\u1010\u102f\u1021\u1000\u102c \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c<\/li>\n<li><strong>\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c \u1012\u1031\u101e\u1019\u103b\u102c\u1038<\/strong>: \u1021\u101b\u102e\u1007\u102d\u102f\u1038\u1014\u102c\u1038\u104a \u1014\u102e\u1017\u102c\u1038\u1012\u102b\u1038\u104a \u1010\u1000\u1039\u1000\u1006\u1000\u103a\u1010\u102d\u102f\u1037\u1010\u103d\u1004\u103a \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u101e\u100a\u103a 45\u00b0C \u1011\u1000\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u1021\u101c\u103e\u1021\u1015\u1000\u102d\u102f \u1014\u103e\u1005\u103a\u101e\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>: Powder-coated \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a \u1021\u101b\u1031\u102c\u1004\u103a\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1005\u101b\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101b\u100a\u103a\u1021\u101e\u103d\u1031\u1038\u1019\u103c\u1004\u1037\u103a \u1021\u101e\u103d\u1004\u103a\u1021\u1015\u103c\u1004\u103a\u1000\u102d\u102f \u1015\u102d\u102f\u1019\u102d\u102f\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<h3>\u1015\u1004\u103a\u101c\u101a\u103a\u1014\u103e\u1004\u1037\u103a \u1000\u1019\u103a\u1038\u101b\u102d\u102f\u1038\u1010\u1014\u103a\u1038 \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038 (\u101e\u1019\u102f\u1012\u1039\u1012\u101b\u102c\u1019\u103e \u1045 \u1019\u102d\u102f\u1004\u103a\u1021\u1031\u102c\u1000\u103a)<\/h3>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1001\u103b\u1000\u103a- 316L \u101e\u1036\u1019\u100f\u102d (\u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a)<\/strong><\/p>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1019\u103b\u103e\u1010\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li><strong>\u1006\u102c\u1038\u1004\u103d\u1031\u1037\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a<\/strong>: 316L \u104f 2% \u1019\u102d\u102f\u101c\u102e\u1018\u1012\u1004\u103a\u1014\u1019\u103a \u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u1001\u103b\u102d\u102f\u1004\u1037\u103a\u1001\u103d\u1000\u103a\u1019\u103b\u102c\u1038 \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b Powder-coated \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a \u1006\u102c\u1038\u1016\u103c\u1014\u103a\u1038\u101b\u102c\u1010\u103d\u1004\u103a \u1045-\u1048 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u101e\u102f\u100a \u1021\u1015\u1031\u102b\u103a\u101a\u1036\u1015\u102d\u102f\u1004\u103a\u1038 \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1019\u103e\u102f<\/strong>: \u1001\u101b\u102d\u102f\u1019\u102e\u101a\u1019\u103a\u1021\u1031\u102c\u1000\u103a\u1006\u102d\u102f\u1012\u103a \u1021\u101c\u103d\u103e\u102c\u101e\u100a\u103a \u1015\u103d\u1014\u103a\u1038\u1015\u1032\u1037\u101e\u100a\u1037\u103a\u1021\u1001\u102b \u101e\u1030\u1037\u1021\u101c\u102d\u102f\u101c\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101c\u102c\u101e\u100a\u103a\u104b \u1011\u102d\u1010\u103d\u1031\u1037\u1015\u103c\u102e\u1038 \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1006\u1031\u1038\u101e\u102f\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u101b\u1031\u101b\u103e\u100a\u103a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038<\/strong>: \u1000\u1014\u1026\u1038 \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 (\u1010\u1005\u103a\u101a\u1030\u1014\u1005\u103a\u101c\u103b\u103e\u1004\u103a $200-300 \u1015\u101b\u102e\u1019\u102e\u101a\u1036) \u101e\u100a\u103a \u1041\u1040 \u1014\u103e\u1005\u103a\u1019\u103c\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u1000\u102c\u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1004\u1037\u103a \u1000\u102c\u1019\u102d\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u1006\u1004\u1037\u103a \u1005\u1005\u103a\u1006\u1031\u1038\u1001\u103c\u1004\u103a\u1038<\/strong>: Mill test \u101c\u1000\u103a\u1019\u103e\u1010\u103a\u1019\u103e\u1010\u1005\u103a\u1006\u1004\u1037\u103a 316L \u1021\u1006\u1004\u1037\u103a (\u1000\u102c\u1017\u103d\u1014\u103a\u1014\u100a\u103a\u1038) \u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b\u104b 316 \u1005\u1036\u1021\u1006\u1004\u1037\u103a\u101e\u100a\u103a \u1002\u101f\u1031\u1006\u1031\u102c\u103a\u101b\u102c\u1010\u103d\u1004\u103a \u1011\u102d\u101c\u103d\u101a\u103a\u101b\u103e\u101c\u103d\u101a\u103a \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u101f\u102c\u1037\u1012\u103a\u101d\u1032<\/strong>: \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u102c\u1038\u101c\u102f\u1036\u1038 (\u1001\u102b\u1038\u1015\u1010\u103a\u1019\u103b\u102c\u1038\u104a \u101c\u103b\u103e\u1031\u102c\u1010\u1036\u1019\u103b\u102c\u1038\u104a \u101d\u1000\u103a\u1021\u1030\u1019\u103b\u102c\u1038\u104a \u1000\u1031\u1018\u101a\u103a\u1002\u101c\u1004\u103a\u1038\u1019\u103b\u102c\u1038) \u101e\u100a\u103a 316 \u101e\u1036\u1019\u100f\u102d \u1016\u103c\u1005\u103a\u101b\u1019\u100a\u103a\u104b \u101e\u1010\u1039\u1010\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u1031\u102c\u1005\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a galvanic \u1006\u1032\u101c\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Gasket \u1015\u1005\u1039\u1005\u100a\u103a\u1038<\/strong>: \u1006\u102c\u1038\u1000\u102d\u102f \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101b\u1014\u103a \u1006\u102e\u101c\u102e\u1000\u103d\u1014\u103a (EPDM \u1019\u101f\u102f\u1010\u103a\u1015\u102b)<\/li>\n<li><strong>\u1021\u1015\u1030\u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1019\u103e\u102f<\/strong>: 150A \u1011\u1000\u103a\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101e\u1036\u1019\u100f\u102d\u1015\u1014\u103a\u1000\u102c \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030 \u1021\u1010\u1004\u103a\u1038\u1021\u1000\u103b\u1015\u103a \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a<\/li>\n<\/ul>\n<p><strong>\u1021\u1015\u1031\u102b\u103a\u101a\u1036\u1015\u102d\u102f\u1004\u103a\u1038 \u101e\u1010\u102d\u1015\u1031\u1038\u1001\u103b\u1000\u103a<\/strong> \u1006\u1031\u1038\u101e\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101e\u1036\u1019\u100f\u102d\u1000\u102d\u102f \u1018\u101a\u103a\u1010\u1031\u102c\u1037\u1019\u103e \u1019\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u1014\u103e\u1004\u1037\u103a\u104b \u1021\u1015\u1031\u102b\u103a\u101a\u1036\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1005\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101b\u103e\u102d\u1014\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1000\u103a\u1000\u103d\u1032\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038 \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u100a\u103a\u104b \u1015\u103d\u1010\u103a\u1010\u102d\u102f\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1016\u103c\u1004\u1037\u103a \u1015\u103d\u1010\u103a\u1010\u102d\u102f\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1001\u103b\u1031\u102c\u1011\u100a\u103a\u101e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b.<\/p>\n<h3>1500V \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103c\u1004\u1037\u103a \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/h3>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1001\u103b\u1000\u103a- \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 316L \u101e\u1036\u1019\u100f\u102d (\u101e\u1010\u1039\u1010\u102f \u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a)<\/strong><\/p>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1019\u103b\u103e\u1010\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li><strong>\u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101b\u1031\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong>: <a href=\"https:\/\/test.viox.com\/my\/1000v-solar-combiner-box-design-compliance-guide\/\">1500V \u1005\u1014\u1005\u103a \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f<\/a> IEC 62109-1 \u1021\u101b \u1016\u103c\u100a\u1037\u103a\u1005\u103d\u1000\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1019\u1016\u103c\u1005\u103a\u1019\u1014\u1031 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b Polycarbonate \u104f Class II \u101c\u103b\u103e\u1015\u103a\u1000\u102c\u101e\u100a\u103a \u1019\u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u1015\u102b\u104b<\/li>\n<li><strong>Arc flash \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a<\/strong>: \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103c\u1004\u1037\u103a\u101c\u1031\u101c\u1031 \u1016\u103c\u1005\u103a\u1005\u1009\u103a\u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101c\u1031\u101c\u1031\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101d\u1014\u103a\u1011\u1019\u103a\u1038\u1019\u103b\u102c\u1038 \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101e\u1010\u1039\u1010\u102f\u1021\u1000\u102c\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>EMI \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a<\/strong>: 1500V \u1021\u1019\u103c\u1014\u103a\u1015\u102d\u1010\u103a\u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101e\u1036\u101c\u102d\u102f\u1000\u103a \u101c\u102d\u102f\u1000\u103a\u1016\u1000\u103a\u100a\u102e\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a \u101e\u1010\u1039\u1010\u102f\u1021\u102d\u1019\u103a\u101b\u102c \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/li>\n<li><strong>\u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u101b\u1031\u1038\u1015\u102b\u1019\u103e\u102f<\/strong>: \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103c\u1004\u1037\u103a \u1000\u103c\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1021\u1001\u103b\u102d\u102f\u1038\u1000\u103b \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u101e\u100a\u103a\u104b \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1005\u102e\u1019\u1036\u1001\u1014\u1037\u103a\u1001\u103d\u1032\u1019\u103e\u102f\u101e\u100a\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u104d \u1019\u101b\u1015\u102b\u104b<\/li>\n<\/ul>\n<p><strong>\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/strong><\/p>\n<ul>\n<li><strong>\u1021\u1000\u102c \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>: PV \u1011\u102d\u1014\u103a\u101e\u102d\u1019\u103a\u1038\u1001\u103c\u1004\u103a\u1038 \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1015\u102f\u1036\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a \u1005\u1015\u101a\u103a\u101a\u102c\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030 \u1011\u1015\u103a\u1010\u101c\u1032\u101c\u1032 \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1001\u103b\u100a\u103a\u1014\u103e\u1031\u102c\u1004\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Arc-rated \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/strong>: \u1018\u1010\u103a\u1005\u103a\u1018\u102c\u1038\u1019\u103b\u102c\u1038\u104a \u1002\u102d\u1010\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1010\u1015\u103a\u1006\u1004\u103a\u101e\u100a\u1037\u103a \u101f\u102c\u1037\u1012\u103a\u101d\u1032\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101e\u100a\u103a NFPA 70E arc flash \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u101b\u1019\u100a\u103a\u104b<\/li>\n<li><strong>\u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038 \u1019\u1031\u102c\u103a\u1012\u101a\u103a\u101c\u103a<\/strong>: \u1021\u1006\u102d\u102f\u1038\u1006\u102f\u1036\u1038 \u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1015\u102b (45\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a + \u1014\u1031\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d \u101b\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038 + \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038)<\/li>\n<\/ul>\n<h2>\u1019\u1000\u103c\u102c\u1001\u100f\u1019\u1031\u1038\u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/h2>\n<h3>Why does combiner box enclosure material affect circuit breaker performance?<\/h3>\n<p>\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>40\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a<\/strong> \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1011\u102f\u1010\u103a\u101d\u1031\u1011\u102c\u1038\u101e\u1031\u102c derating \u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1016\u103c\u1004\u1037\u103a\u104b \u1021\u1000\u102c\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u104f \u1021\u1015\u1030\u1005\u102e\u1038\u1000\u1030\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101e\u100a\u103a \u101d\u1014\u103a\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a \u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u101e\u100a\u103a\u104b \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a \u1021\u1000\u102c\u1019\u103b\u102c\u1038 (205 W\/(m\u00b7K) \u1021\u1015\u1030\u1005\u102e\u1038\u1000\u1030\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038) \u101e\u100a\u103a \u1021\u1015\u1030\u1005\u102f\u1015\u103a\u1001\u103d\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1016\u103c\u1005\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1015\u103c\u102e\u1038 \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f polycarbonate \u1021\u1000\u102c\u1019\u103b\u102c\u1038 (0.2 W\/(m\u00b7K)) \u1011\u1000\u103a 12-18\u00b0C \u1021\u1031\u1038\u1019\u103c\u1005\u1031\u101e\u100a\u103a\u104b \u1024\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u1010\u102c\u1038\u1006\u102e\u1038\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/circuit-breaker-ambient-temperature-ratings-and-derating-factors\/\">thermal derating<\/a>\u201475\u00b0C \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a 20A \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101e\u100a\u103a 16A \u1011\u102d\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a (20% derating) \u1016\u103c\u1004\u1037\u103a\u101e\u102c \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u103c\u102e\u1038 60\u00b0C \u1010\u103d\u1004\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u101e\u100a\u103a 18.8A \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a (6% derating) \u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b 12-string combiner box \u1021\u1010\u103d\u1000\u103a \u104e\u1004\u103a\u1038\u101e\u100a\u103a polycarbonate \u1014\u103e\u1004\u1037\u103a \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a \u1021\u1000\u102c\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1005\u1014\u1005\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a 34A \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1001\u103c\u1004\u103a\u1038\u101e\u102d\u102f\u1037 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>Can polycarbonate combiner boxes handle utility-scale currents?<\/h3>\n<p><strong>\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u2014polycarbonate \u101e\u100a\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 150A \u1011\u1000\u103a\u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c utility-scale combiner box \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1019\u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1015\u102b\u104b<\/strong> Polycarbonate \u104f \u1021\u1015\u1030\u101c\u103b\u103e\u1015\u103a\u1000\u102c \u1002\u102f\u100f\u103a\u101e\u1010\u1039\u1010\u102d\u1019\u103b\u102c\u1038 (0.2 W\/(m\u00b7K)) \u101e\u100a\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u1030\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1011\u102c\u1038\u1015\u103c\u102e\u1038 45\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a \u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1010\u103d\u1004\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a 72-78\u00b0C \u101e\u102d\u102f\u1037 \u101b\u1031\u102c\u1000\u103a\u101b\u103e\u102d\u1005\u1031\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1021\u1015\u1030 derating (15-20% \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1001\u103c\u1004\u103a\u1038)\u104a \u1021\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u101e\u1031\u102c \u1016\u103b\u1030\u1038\u1005\u103a \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101b\u103e\u102d\u1014\u103a\u1019\u103c\u103e\u1004\u1037\u103a SPD \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1005\u1031\u101e\u100a\u103a\u104b VIOX \u1000\u103d\u1004\u103a\u1038\u1006\u1004\u103a\u1038 \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u1021\u101b <a href=\"https:\/\/test.viox.com\/my\/solar-combiner-box-overheating-causes-solutions\/\">combiner box \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1001\u103c\u1004\u103a\u1038<\/a> polycarbonate \u1021\u1000\u102c\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 150A \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101c\u102c\u101e\u100a\u103a\u104b \u1021\u1010\u1004\u103a\u1038\u1021\u1000\u103b\u1015\u103a \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a (50 CFM \u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038) \u1016\u103c\u1004\u1037\u103a\u1015\u1004\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u101e\u100a\u103a 65\u00b0C \u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1014\u1031\u101e\u100a\u103a\u104b DC \u1018\u101b\u102d\u1010\u103a\u1000\u102c \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u1021\u1019\u103b\u102c\u1038\u1005\u102f\u1021\u1010\u103d\u1000\u103a 60\u00b0C \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a \u101b\u103e\u102d\u101e\u100a\u103a\u104b \u1000\u103c\u102d\u102f\u1038 \u1048 \u1001\u103b\u1031\u102c\u1004\u103a\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 150A \u1011\u1000\u103a\u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c \u1019\u100a\u103a\u101e\u100a\u1037\u103a\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a\u1019\u1006\u102d\u102f \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u104b.<\/p>\n<h3>Why do generic ABS plastic combiner boxes fail so quickly?<\/h3>\n<p><strong>ABS \u1015\u101c\u1010\u103a\u1005\u1010\u1005\u103a\u101e\u100a\u103a \u1015\u103c\u1004\u103a\u1015 PV \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a UV \u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101c\u102c\u101e\u1031\u102c \u1015\u102d\u102f\u101c\u102e\u1019\u102c\u1000\u103d\u1004\u103a\u1038\u1006\u1000\u103a \u1015\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1001\u1036\u101b\u101e\u100a\u103a\u104b<\/strong> UV photons (280-400nm \u101c\u103e\u102d\u102f\u1004\u103a\u1038\u1021\u101c\u103b\u102c\u1038) \u101e\u100a\u103a acrylonitrile-butadiene-styrene \u1015\u102d\u102f\u101c\u102e\u1019\u102c\u1000\u103d\u1004\u103a\u1038\u1006\u1000\u103a\u1019\u103b\u102c\u1038\u101b\u103e\u102d \u1000\u102c\u1017\u103d\u1014\u103a-\u1000\u102c\u1017\u103d\u1014\u103a \u1014\u103e\u1031\u102c\u1004\u103a\u1000\u103c\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u102f\u1038\u1016\u103b\u1000\u103a\u1015\u103c\u102e\u1038 \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u100a\u103a\u104b <strong>\u1041\u1042-\u1041\u1048 \u101c\u1021\u1010\u103d\u1004\u103a\u1038 60-70% \u1006\u103d\u1032\u1006\u1014\u1037\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1001\u103c\u1004\u103a\u1038<\/strong>. \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101e\u100a\u103a \u1000\u103c\u103d\u1015\u103a\u1006\u1010\u103a\u101c\u102c\u101e\u100a\u103a\u104b \u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1019\u103e\u102f \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u1021\u101b \u1010\u1015\u103a\u1006\u1004\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u1031\u1018\u101a\u103a\u101c\u103a\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1000\u103a\u1000\u103d\u1032\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038 \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101c\u102c\u101e\u100a\u103a\u1000\u102d\u102f \u1010\u103d\u1031\u1037\u101b\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a SPDs \u1014\u103e\u1004\u1037\u103a \u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u103b\u1000\u103a\u1006\u102e\u1038\u101e\u100a\u1037\u103a \u1021\u1005\u102d\u102f\u1013\u102c\u1010\u103a\u1000\u102d\u102f \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1005\u1031\u101e\u100a\u103a\u104b \u1000\u101a\u103a\u101c\u102e\u1016\u102d\u102f\u1038\u1014\u102e\u1038\u101a\u102c\u1038\u101b\u103e\u102d ABS combiner box \u1044\u1047 \u1001\u102f\u104f \u1000\u103d\u1004\u103a\u1038\u1006\u1004\u103a\u1038 \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1019\u103e\u102f\u1021\u101b \u1041\u1044 \u101c\u1021\u1010\u103d\u1004\u103a\u1038 \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u1005\u102f\u1036\u1000\u102d\u102f \u1010\u103d\u1031\u1037\u101b\u103e\u102d\u1001\u1032\u1037\u1015\u103c\u102e\u1038 \u1021\u101b\u1031\u1038\u1015\u1031\u102b\u103a \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a $180,000 \u1000\u102f\u1014\u103a\u1000\u103b\u1001\u1032\u1037\u101e\u100a\u103a\u104b ABS \u1010\u103d\u1004\u103a \u1041\u1040 \u1014\u103e\u1005\u103a\u1000\u103b\u1031\u102c\u103a \u1015\u103c\u1004\u103a\u1015 \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1021\u1010\u103d\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c UV \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u100a\u1037\u103a \u1015\u1000\u103a\u1000\u1031\u1037\u1001\u103a\u103b\u1019\u103b\u102c\u1038 (benzotriazole absorbers, HALS \u1013\u102c\u1010\u102f\u1017\u1031\u1012) \u1019\u101b\u103e\u102d\u1015\u102b\u104b \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f <a href=\"https:\/\/test.viox.com\/my\/why-outdoor-isolators-fail-polycarbonate-vs-abs\/\">polycarbonate \u1014\u103e\u1004\u1037\u103a ABS \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038<\/a>. <strong>PV \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101a\u1031\u1018\u102f\u101a\u103b ABS \u1000\u102d\u102f \u1018\u101a\u103a\u1010\u1031\u102c\u1037\u1019\u103e \u1019\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u1014\u103e\u1004\u1037\u103a\u104b UV \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u100a\u1037\u103a polycarbonate (\u22650.5% \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u100a\u1037\u103a \u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f) \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101e\u1010\u1039\u1010\u102f\u1021\u1000\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f\u101e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b<\/strong>316L \u101e\u1036\u1019\u100f\u102d\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1021\u1001\u103c\u1031\u1021\u1014\u1031 \u101e\u102f\u1036\u1038\u1001\u102f\u1010\u103d\u1004\u103a \u104e\u1004\u103a\u1038\u104f \u1015\u101b\u102e\u1019\u102e\u101a\u1036\u1000\u102d\u102f \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u101e\u100a\u103a\u104b.<\/p>\n<h3>When is stainless steel 316L worth the 60-80% cost premium over aluminum?<\/h3>\n<p><strong>316L stainless steel justifies its premium in three specific scenarios:<\/strong> (1) <strong>\u1015\u1004\u103a\u101c\u101a\u103a\u1014\u103e\u1004\u1037\u103a \u1045 \u1019\u102d\u102f\u1004\u103a\u1021\u1010\u103d\u1004\u103a\u1038\u101b\u103e\u102d \u1000\u1019\u103a\u1038\u101b\u102d\u102f\u1038\u1010\u1014\u103a\u1038 \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>\u2014\u1006\u102c\u1038\u1004\u103d\u1031\u1037\u101e\u100a\u103a \u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1016\u103c\u1004\u1037\u103a \u1016\u102f\u1036\u1038\u1021\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u1000\u102d\u102f \u101c\u103b\u1004\u103a\u1019\u103c\u1014\u103a\u1005\u103d\u102c \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1005\u1031\u1015\u103c\u102e\u1038 \u1048-\u1041\u1040 \u1014\u103e\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1021\u1000\u102c\u1021\u101b\u1036\u1000\u102d\u102f \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1005\u1031\u101e\u100a\u103a\u104b 316L \u104f \u1019\u102d\u102f\u101c\u102e\u1018\u1012\u1004\u103a\u1014\u1019\u103a \u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1042\u1045 \u1014\u103e\u1005\u103a\u1000\u103b\u1031\u102c\u103a\u1000\u103c\u102c\u1021\u1031\u102c\u1004\u103a \u1001\u103b\u102d\u102f\u1004\u1037\u103a\u1001\u103d\u1000\u103a\u1019\u103b\u102c\u1038 \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1010\u102c\u1038\u1006\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b (\u1042) <strong>\u1013\u102c\u1010\u102f\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1011\u102d\u1010\u103d\u1031\u1037\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u102f\u1036\u1038 \u1014\u1031\u101b\u102c\u1019\u103b\u102c\u1038<\/strong>\u2014\u1021\u1019\u102d\u102f\u1038\u1014\u102e\u1038\u101a\u102c\u1038 \u1019\u103c\u1031\u101e\u103c\u1007\u102c\u1016\u103c\u1014\u103a\u1038\u1001\u103c\u1004\u103a\u1038 (\u1005\u102d\u102f\u1000\u103a\u1015\u103b\u102d\u102f\u1038\u101b\u1031\u1038 \u1006\u102d\u102f\u101c\u102c\u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a)\u104a \u1021\u1000\u103a\u1006\u1005\u103a\u1004\u103d\u1031\u1037\u1019\u103b\u102c\u1038 (\u101e\u1010\u1039\u1010\u102f\u1010\u1030\u1038\u1016\u1031\u102c\u103a\u1001\u103c\u1004\u103a\u1038\/\u101e\u1014\u1037\u103a\u1005\u1004\u103a\u1001\u103c\u1004\u103a\u1038 \u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1019\u103b\u102c\u1038) \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u101a\u103a\u1000\u102c\u101c\u102e \u101e\u1014\u1037\u103a\u1005\u1004\u103a\u1006\u1031\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a \u1021\u1019\u103e\u102f\u1014\u1037\u103a\u1021\u1015\u1031\u102b\u103a\u101a\u1036\u101c\u103d\u103e\u102c\u1000\u102d\u102f \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1005\u1031\u101e\u100a\u103a\u104b 316L \u101e\u100a\u103a pH 2-12 \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b (\u1043) <strong>\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101b\u1031\u1038 \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>\u2014\u1014\u103b\u1030\u1000\u101c\u102e\u1038\u101a\u102c\u1038 \u1005\u1000\u103a\u101b\u102f\u1036\u1019\u103b\u102c\u1038\u104a \u1005\u1005\u103a\u1021\u1001\u103c\u1031\u1005\u102d\u102f\u1000\u103a \u1005\u1001\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1011\u102d\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u1011\u1000\u103a \u1001\u102d\u102f\u1038\u101a\u1030\u1016\u103b\u1000\u103a\u1006\u102e\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101b\u1014\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1021\u1001\u103c\u1031\u1001\u1036 \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038\u104b. <strong>\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u102e \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u102f\u1036\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a \u1021\u1019\u102d\u102f\u1038\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u101e\u1031\u102c PV \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a<\/strong>, \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u1021\u1015\u1030\u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1014\u103e\u1004\u1037\u103a \u1044\u1040-\u1045\u1040% \u1021\u1011\u102d \u101e\u1000\u103a\u101e\u102c\u101e\u1031\u102c \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1016\u103c\u1004\u1037\u103a \u1042\u1045 \u1014\u103e\u1005\u103a\u1000\u103b\u1031\u102c\u103a \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1000\u102d\u102f \u1015\u1031\u1038\u1005\u103d\u1019\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a (205 vs 16 W\/(m\u00b7K)) \u101e\u100a\u103a \u101e\u1036\u1019\u100f\u102d\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101e\u1031\u102c breaker derating \u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u1015\u103c\u100a\u1037\u103a\u1005\u102f\u1036\u101e\u1031\u102c <a href=\"https:\/\/test.viox.com\/my\/combiner-box-manufacturer-selection-guide\/\">\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030 \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/a> \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038 \u1021\u1015\u102b\u1021\u101d\u1004\u103a \u1000\u103c\u100a\u1037\u103a\u1015\u102b\u104b.<\/p>\n<h3>How do I prevent thermal overheating in high-current combiner boxes?<\/h3>\n<p><strong>200A+ combiner box \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1006\u1004\u1037\u103a\u101c\u1031\u1038\u1006\u1004\u1037\u103a \u1001\u103b\u1009\u103a\u1038\u1000\u1015\u103a\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a-<\/strong> (1) <strong>\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f<\/strong>\u2014passive \u1021\u1015\u1030\u1005\u103d\u1014\u1037\u103a\u1011\u102f\u1010\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a \u1021\u1000\u102c\u1021\u101b\u1036\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b (\u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u101e\u100a\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c \u101d\u1014\u103a\u1021\u102c\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a polycarbonate \u1011\u1000\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f \u1041\u1044-\u1041\u1046\u00b0C \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1015\u1031\u1038\u101e\u100a\u103a)\u104b (\u1042) <strong>\u1021\u1000\u102c\u1021\u101b\u1036 \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038<\/strong>\u2014\u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a \u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u1005\u1031\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038 \u1011\u102f\u1011\u100a\u103a\u104f \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 \u1041\u1045\u1040% \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b \u1000\u103b\u1009\u103a\u1038\u1019\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u1031\u102c \u1015\u102f\u1036\u1005\u1036\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1015\u1030\u1000\u102d\u102f \u1005\u102f\u1015\u102f\u1036\u1005\u1031\u101e\u100a\u103a\u104b (\u1043) <strong>\u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038<\/strong>\u2014\u101e\u1018\u102c\u101d \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1021\u1010\u103d\u1000\u103a NEMA 3R \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c louvers (\u1021\u1031\u102c\u1000\u103a\u1001\u103c\u1031\u1019\u103e \u101c\u1031\u101d\u1004\u103a\u104a \u1021\u1015\u1031\u102b\u103a\u1019\u103e \u101c\u1031\u1011\u103d\u1000\u103a) \u1000\u102d\u102f \u1010\u1015\u103a\u1006\u1004\u103a\u1015\u102b\u104b 250A \u1011\u1000\u103a\u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a thermostat \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c 12VDC \u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038 (50-100 CFM \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a) \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b (\u1044) <strong>\u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038 derating<\/strong>\u2014\u1021\u1006\u102d\u102f\u1038\u1006\u102f\u1036\u1038 \u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1021\u1031\u102c\u1000\u103a\u1010\u103d\u1004\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038 \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1000\u102d\u102f \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1015\u102b (45\u00b0C \u1015\u103c\u1004\u103a\u1015 + \u1014\u1031\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u1001\u103c\u1004\u103a\u1038 + I\u00b2R \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038) \u1014\u103e\u1004\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/circuit-breaker-ambient-temperature-ratings-and-derating-factors\/\">breaker derating \u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/a> \u1021\u101c\u102c\u1038\u1010\u1030\u104b VIOX \u1021\u1015\u1030\u1015\u102f\u1036\u1005\u1036\u1016\u1031\u102c\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1021\u1000\u102c\u1021\u101b\u1036 \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u101e\u100a\u103a \u1044\u1045\u00b0C \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1010\u103d\u1004\u103a \u1021\u1010\u103d\u1004\u103a\u1038\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u226462\u00b0C \u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u103c\u101e\u101e\u100a\u103a\u2014\u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f <a href=\"https:\/\/test.viox.com\/my\/troubleshooting-solar-combiner-box-faults-fixes\/\">\u1015\u103c\u103f\u1014\u102c\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038 \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/a>. \u1010\u103d\u1004\u103a \u1019\u103e\u1010\u103a\u1010\u1019\u103a\u1038\u1010\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1021\u101a\u103e\u1000\u103a\u1016\u103c\u1005\u103a\u1005\u1031\u101e\u1031\u102c \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u1021\u1010\u103d\u1000\u103a <a href=\"https:\/\/test.viox.com\/my\/1000v-solar-combiner-box-design-compliance-guide\/\">1500V systems<\/a>, \u1017\u102d\u102f\u1037\u1021\u102c\u1038-\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1019\u103e\u102f \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101c\u103d\u1014\u103a\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101c\u102c\u1015\u103c\u102e\u1038 I\u00b2R \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<h3>Does Class II double insulation eliminate all grounding requirements?<\/h3>\n<p><strong>Class II polycarbonate \u1021\u1000\u102c\u1021\u101b\u1036\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1000\u102c\u1021\u101b\u1036 \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u1031\u1038\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1019\u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u1031\u1038\u1015\u102b\u104b.<\/strong> \u1014\u103e\u1005\u103a\u1011\u1015\u103a\u101c\u103b\u103e\u1015\u103a\u1000\u102c \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038 (IEC 61140 \u1021\u101b \u1021\u1001\u103c\u1031\u1001\u1036 \u101c\u103b\u103e\u1015\u103a\u1000\u102c + \u1016\u103c\u100a\u1037\u103a\u1005\u103d\u1000\u103a \u101c\u103b\u103e\u1015\u103a\u1000\u102c) \u101e\u100a\u103a \u1021\u1000\u102c\u1021\u101b\u1036 \u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1000\u102d\u102f \u1011\u102d\u1010\u103d\u1031\u1037\u1001\u103c\u1004\u103a\u1038\u1019\u103e \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101b\u103e\u1031\u102c\u1037\u1001\u103a \u1016\u103c\u1005\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u2014\u1015\u101c\u1010\u103a\u1005\u1010\u1005\u103a \u1021\u102d\u1019\u103a\u101b\u102c\u1000\u102d\u102f \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a \u1000\u103d\u1014\u103a\u1012\u1010\u103a\u1010\u102c\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u101b\u1014\u103a \u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a, <strong>DC circuit breaker \u1019\u103b\u102c\u1038\u104a SPDs \u1014\u103e\u1004\u1037\u103a \u101e\u1010\u1039\u1010\u102f busbar \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u1014\u1031\u101e\u1031\u1038\u101e\u100a\u103a<\/strong> \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a \u1000\u103d\u1014\u103a\u1012\u1010\u103a\u1010\u102c (\u1021\u1005\u102d\u1019\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038) \u1019\u103e\u1010\u1006\u1004\u1037\u103a\u104b \u101c\u102f\u1015\u103a\u1021\u102c\u1038 \u101e\u1000\u103a\u101e\u102c\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1000\u102c\u1021\u101b\u1036\u1000\u102d\u102f\u101a\u103a\u1010\u102d\u102f\u1004\u103a\u1021\u1010\u103d\u1000\u103a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\/\u1000\u103c\u102d\u102f\u1038\u101e\u102e\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1019\u103e \u101b\u101b\u103e\u102d\u101e\u100a\u103a\u2014\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1010\u1005\u103a\u101a\u1030\u1014\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u1041\u1042-\u1041\u1048 \u1019\u102d\u1014\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1048-\u1041\u1042% \u101e\u1000\u103a\u101e\u102c\u101e\u100a\u103a\u104b. <strong>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038-<\/strong> (\u1041) \u1019\u100a\u103a\u101e\u100a\u1037\u103a \u101e\u1010\u1039\u1010\u102f knockout \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a cable gland \u1019\u1006\u102d\u102f Class II \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1015\u103b\u1000\u103a\u1015\u103c\u101a\u103a\u1005\u1031\u101e\u100a\u103a\u104b (\u1042) 1500V \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1000\u102c\u1021\u101b\u1036\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1015\u1004\u103a\u101b\u103e\u102d\u1005\u1031\u1000\u102c\u1019\u1030 \u1016\u103c\u100a\u1037\u103a\u1005\u103d\u1000\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b (\u1043) <a href=\"https:\/\/test.viox.com\/my\/rapid-shutdown-vs-dc-disconnect-safety-guide\/\">\u101c\u103b\u1004\u103a\u1019\u103c\u1014\u103a\u1005\u103d\u102c \u1015\u102d\u1010\u103a\u1001\u103c\u1004\u103a\u1038 \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038<\/a> \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a EMI shielding \u1021\u1010\u103d\u1000\u103a \u101e\u1010\u1039\u1010\u102f\u1021\u1000\u102c\u1021\u101b\u1036 \u101c\u102d\u102f\u1021\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u1005\u102f\u1036\u1000\u102d\u102f \u1000\u103c\u100a\u1037\u103a\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/how-to-ground-an-electrical-panel\/\">\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1014\u100a\u103a\u1038\u1005\u1014\u1005\u103a<\/a> \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c PV \u1005\u1014\u1005\u103a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a\u104b.<\/p>\n<h3>What UV stabilizer specifications should I require for polycarbonate combiner boxes?<\/h3>\n<p><strong>\u1041\u1040 \u1014\u103e\u1005\u103a\u1000\u103b\u1031\u102c\u103a\u1000\u103c\u102c\u1021\u1031\u102c\u1004\u103a \u1021\u1015\u103c\u1004\u103a\u1018\u1000\u103a\u1010\u103d\u1004\u103a \u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u1005\u103d\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u101b\u1014\u103a \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a-<\/strong> (1) <strong>\u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u1031\u102c \u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f \u1021\u101c\u1031\u1038\u1001\u103b\u102d\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u2265\u1040.\u1045%<\/strong>\u2014\u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a\u1005\u102c\u101b\u103d\u1000\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101c\u103d\u1010\u103a\u101c\u1015\u103a\u101e\u1031\u102c \u1013\u102c\u1010\u103a\u1001\u103d\u1032\u1001\u1014\u103a\u1038 \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b\u104b (\u1042) <strong>\u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u1031\u102c \u1013\u102c\u1010\u102f\u1017\u1031\u1012<\/strong>: Benzotriazole UV absorbers (UV-A\/UV-B \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f) + HALS (Hindered Amine Light Stabilizers) \u101e\u100a\u103a free radical scavenging \u1021\u1010\u103d\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b (\u1043) <strong>ASTM G154 accelerated weathering<\/strong>: \u1045,\u1040\u1040\u1040 \u1014\u102c\u101b\u102e xenon arc \u1011\u102d\u1010\u103d\u1031\u1037\u1015\u103c\u102e\u1038\u1014\u1031\u102c\u1000\u103a &lt;\u1041\u1045% \u1006\u103d\u1032\u1006\u1014\u1037\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1006\u102f\u1036\u1038\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f\u104b (\u1044) <strong>UL94 \u1019\u102e\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a<\/strong>: V0 (\u1041\u1040 \u1005\u1000\u1039\u1000\u1014\u1037\u103a\u1021\u1031\u102c\u1000\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u101e\u1030\u1037\u1021\u101c\u102d\u102f\u101c\u102d\u102f \u1004\u103c\u102d\u1019\u103a\u1038\u101e\u100a\u103a) \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a V1 (\u1043\u1040 \u1005\u1000\u1039\u1000\u1014\u1037\u103a\u1021\u1031\u102c\u1000\u103a)\u104b. <strong>VIOX \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038 \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u100a\u103a-<\/strong> \u1021\u101c\u1031\u1038\u1001\u103b\u102d\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1040.\u1048% \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u1031\u102c\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101e\u100a\u103a \u1045,\u1040\u1040\u1040 \u1014\u102c\u101b\u102e\u1010\u103d\u1004\u103a &lt;\u1041\u1042% \u1001\u102d\u102f\u1004\u103a\u1001\u1036\u1037\u1019\u103e\u102f \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u101e\u1000\u103a\u101e\u1031\u1015\u103c\u101e\u100a\u103a\u2014\u1021\u101b\u102e\u1007\u102d\u102f\u1038\u1014\u102c\u1038 \u101e\u1032\u1000\u1014\u1039\u1010\u102c\u101b\u1010\u103d\u1004\u103a \u1041\u1045-\u1042\u1040 \u1014\u103e\u1005\u103a \u1011\u102d\u1010\u103d\u1031\u1037\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u100a\u102e\u1019\u103b\u103e\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u1000\u103a\u101e\u1031\u1015\u103c\u101e\u100a\u103a\u104b. <strong>\u1014\u102d\u1019\u1037\u103a\u1000\u103b\u101e\u1031\u102c polycarbonate \u1000\u102d\u102f \u100a\u103d\u103e\u1014\u103a\u1015\u103c\u101e\u1031\u102c \u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038-<\/strong> \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u1031\u102c \u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f \u1011\u102f\u1010\u103a\u1016\u1031\u102c\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038\u104a \u1021\u101b\u103e\u102d\u1014\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101b\u102c\u101e\u102e\u1025\u1010\u102f\u1012\u100f\u103a \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u1019\u103e\u102f \u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a\u1019\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038\u104a \u1019\u102e\u1038\u1001\u102d\u102f\u1038\u101b\u1031\u102c\u1004\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1014\u1000\u103a\u101b\u1031\u102c\u1004\u103a (\u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1005\u102f\u1015\u103a\u101a\u1030\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038 \u1019\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038)\u104a \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u101e\u100a\u103a ASTM G154 \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f \u1021\u1005\u102e\u101b\u1004\u103a\u1001\u1036\u1005\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1004\u103c\u1004\u103a\u1038\u1006\u102d\u102f\u1001\u103c\u1004\u103a\u1038\u104b \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f <a href=\"https:\/\/test.viox.com\/my\/why-outdoor-isolators-fail-polycarbonate-vs-abs\/\">isolator switch \u1015\u1005\u1039\u1005\u100a\u103a\u1038 \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/a>\u1010\u103d\u1004\u103a \u1021\u101e\u1031\u1038\u1005\u102d\u1010\u103a \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1000\u103c\u100a\u1037\u103a\u1015\u102b\u2014\u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a box \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u101c\u100a\u103a\u1038 \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103b\u102c\u1038 \u1021\u1010\u1030\u1010\u1030\u1015\u1004\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<hr>\n<p><strong>VIOX Electric \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038-<\/strong> PV \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u104f \u1026\u1038\u1006\u1031\u102c\u1004\u103a B2B \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u1021\u1014\u1031\u1016\u103c\u1004\u1037\u103a VIOX Electric \u101e\u100a\u103a \u1006\u102d\u102f\u101c\u102c\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u104f \u1011\u1030\u1038\u1001\u103c\u102c\u1038\u101e\u1031\u102c \u1021\u1015\u1030\u1014\u103e\u1004\u1037\u103a \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1005\u102d\u1014\u103a\u1001\u1031\u102b\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1000\u1031\u102c\u1004\u103a\u1038\u1006\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u1021\u1031\u102c\u1004\u103a \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a box \u1021\u1000\u102c\u1021\u101b\u1036\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1019\u103b\u102c\u1038\u1000 \u1010\u102e\u1011\u103d\u1004\u103a\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1011\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f \u1021\u101c\u1030\u1019\u102e\u1014\u102e\u101a\u1019\u103a\u104a 316L \u101e\u1036\u1019\u100f\u102d\u1014\u103e\u1004\u1037\u103a \u1001\u101b\u1019\u103a\u1038\u101c\u103d\u1014\u103a\u101b\u1031\u102c\u1004\u103a\u1001\u103c\u100a\u103a \u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1005\u1031\u101e\u1031\u102c polycarbonate \u1015\u101c\u1000\u103a\u1016\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a UL508A \u1021\u101e\u102d\u1021\u1019\u103e\u1010\u103a\u1015\u103c\u102f\u101c\u1000\u103a\u1019\u103e\u1010\u103a\u1000\u102d\u102f \u101b\u101b\u103e\u102d\u1011\u102c\u1038\u1015\u103c\u102e\u1038 IEC 62109-1 PV- \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1015\u102b\u101e\u100a\u103a\u104b \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1021\u1016\u103d\u1032\u1037\u1000\u102d\u102f \u1006\u1000\u103a\u101e\u103d\u101a\u103a\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/combiner-box-manufacturer-selection-guide\/\">\u1021\u1000\u102c\u1021\u101b\u1036 \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/a> \u1014\u103e\u1004\u1037\u103a \u101e\u1004\u1037\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1015\u1030\u1015\u102f\u1036\u1005\u1036\u1016\u1031\u102c\u103a\u1001\u103c\u1004\u103a\u1038 \u1021\u1011\u1031\u102c\u1000\u103a\u1021\u1015\u1036\u1037\u1021\u1010\u103d\u1000\u103a \u1006\u1000\u103a\u101e\u103d\u101a\u103a\u1015\u102b\u104b.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A photovoltaic combiner box enclosure isn&#8217;t just a weatherproof shell\u2014it&#8217;s a thermal management system operating under extreme conditions. Unlike standard junction boxes, PV combiner boxes face three simultaneous engineering challenges: sustained heat generation from high-current DC switching components, continuous UV exposure degrading materials 24\/7, and thermal cycling stresses from desert day\/night temperature swings of 40\u00b0C+. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21203,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/comments?post=21202"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21202\/revisions"}],"predecessor-version":[{"id":21204,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21202\/revisions\/21204"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media\/21203"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media?parent=21202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/categories?post=21202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/tags?post=21202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}