{"id":21245,"date":"2026-01-07T02:20:44","date_gmt":"2026-01-06T18:20:44","guid":{"rendered":"https:\/\/viox.com\/?p=21245"},"modified":"2026-01-07T02:20:46","modified_gmt":"2026-01-06T18:20:46","slug":"single-phase-vs-three-phase-ats-selection-guide-2p-3p-4p","status":"publish","type":"post","link":"https:\/\/test.viox.com\/my\/single-phase-vs-three-phase-ats-selection-guide-2p-3p-4p\/","title":{"rendered":"Single Phase vs. Three Phase ATS Selection Guide: When to Choose 2P, 3P, or 4P?"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>Single-Phase \u1014\u103e\u1004\u1037\u103a Three-Phase Power Systems \u1000\u102d\u102f \u1014\u102c\u1038\u101c\u100a\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/h2>\n<h3>\u1010\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038 (1P+N): 220-240V \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/h3>\n<p>\u1010\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a 220-240V \u1010\u103d\u1004\u103a\u101c\u100a\u103a\u1015\u1010\u103a\u1015\u103c\u102e\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038 (L1) \u1010\u1005\u103a\u1001\u102f\u1014\u103e\u1004\u1037\u103a \u1000\u103c\u102c\u1038\u1014\u1031\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038 (N) \u1010\u1005\u103a\u1001\u102f\u1015\u102b\u101d\u1004\u103a\u101e\u100a\u103a\u104b \u1024\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a <strong>2-pole (2P) \u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u101c\u102f\u1010\u103a<\/strong> \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u103c\u102c\u1038\u1014\u1031\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u1014\u103e\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1010\u1005\u103a\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1019\u1030\u101c\u1021\u1015\u101c\u102e\u1000\u1031\u1038\u101b\u103e\u1004\u103a\u1038\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ul>\n<li>\u101c\u1030\u1014\u1031\u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1010\u102d\u102f\u1000\u103a\u1001\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>\u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u101b\u102f\u1036\u1038\u1001\u1014\u103a\u1038\u1004\u101a\u103a\u1019\u103b\u102c\u1038 (100A \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1021\u1031\u102c\u1000\u103a)<\/li>\n<li>\u1021\u1015\u1014\u103a\u1038\u1016\u103c\u1031\u101a\u102c\u1009\u103a\u1019\u103b\u102c\u1038 (RVs) \u1014\u103e\u1004\u1037\u103a \u101b\u103d\u1031\u1037\u101c\u103b\u102c\u1038\u1021\u102d\u1019\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1015\u1031\u102b\u1037\u1015\u102b\u1038\u101e\u1031\u102c \u1005\u1000\u103a\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1019\u101b\u103e\u102d\u1019\u1016\u103c\u1005\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u1014\u103a\u1015\u102b\u101d\u102b<\/li>\n<\/ul>\n<p>\u1010\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u104f \u1015\u102b\u101d\u102b\u1015\u1031\u1038\u1015\u102d\u102f\u1037\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1010\u103d\u1004\u103a \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u101b\u103e\u102d\u1015\u103c\u102e\u1038 \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 100A \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f (240V \u1010\u103d\u1004\u103a 24kW) \u1010\u103d\u1004\u103a \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u1021\u101b\u1014\u103a\u1015\u102b\u101d\u102b\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a 2P ATS \u101e\u100a\u103a \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u102c\u1038 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u100a\u1037\u103a\u1021\u1001\u102b \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u1031\u102c\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u101e\u102f\u1036\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038 (3P+N): 380-415V \u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u102f\u1036\u1038 \u1015\u102b\u101d\u102b<\/h3>\n<p>\u101e\u102f\u1036\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u101e\u102f\u1036\u1038\u1001\u102f (L1, L2, L3) \u1014\u103e\u1004\u1037\u103a \u1000\u103c\u102c\u1038\u1014\u1031\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038 (N) \u1019\u103e\u1010\u1006\u1004\u1037\u103a 380-415V \u1000\u102d\u102f \u1015\u1031\u1038\u1015\u102d\u102f\u1037\u101e\u100a\u103a\u104b \u1024\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a <strong>3-pole (3P) \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 4-pole (4P) \u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u101c\u102f\u1010\u103a<\/strong>, \u1000\u103c\u102c\u1038\u1014\u1031\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103c\u1004\u103a\u1038 \u101b\u103e\u102d\u104a \u1019\u101b\u103e\u102d\u1015\u1031\u102b\u103a\u1019\u1030\u1010\u100a\u103a\u104d \u1005\u1014\u1005\u103a\u104f\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101b\u1031\u1038\u1014\u103e\u1004\u1037\u103a \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u1019\u103e\u102f\u1000\u102d\u102f \u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1005\u1031\u101e\u1031\u102c \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1019\u1030\u101c\u1021\u1015\u101c\u102e\u1000\u1031\u1038\u101b\u103e\u1004\u103a\u1038\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ul>\n<li>\u1000\u102f\u1014\u103a\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u1005\u1000\u103a\u101b\u102f\u1036\u1019\u103b\u102c\u1038<\/li>\n<li>HVAC \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038<\/li>\n<li>\u1012\u1031\u1010\u102c\u1005\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1006\u1000\u103a\u101e\u103d\u101a\u103a\u101b\u1031\u1038 \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038<\/li>\n<li>\u101e\u102f\u1036\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038 (\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1016\u102d\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1021\u1021\u1031\u1038\u1001\u1036\u1005\u1000\u103a\u1019\u103b\u102c\u1038) \u101c\u100a\u103a\u1015\u1010\u103a\u101e\u100a\u1037\u103a \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038<\/li>\n<li>\u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u1006\u102d\u102f\u101c\u102c PV \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038 <a href=\"https:\/\/test.viox.com\/my\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">\u101f\u102d\u102f\u1000\u103a\u1018\u101b\u1005\u103a \u1021\u1004\u103a\u1017\u102c\u1010\u102c\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/a><\/li>\n<\/ul>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr>\n<th>\u1005\u1014\u1005\u103a\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/th>\n<th>\u1013\u102c\u1010\u103a\u1021\u102c\u1038<\/th>\n<th>Conductors<\/th>\n<th>\u1015\u102f\u1036\u1019\u103e\u1014\u103a ATS<\/th>\n<th>\u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u101d\u1014\u103a\u1015\u1019\u102c\u100f<\/th>\n<th>\u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c Applications \u1019\u103b\u102c\u1038<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u101c\u1030\u1015\u103b\u102d\u102f-\u1021\u1006\u1004\u1037\u103a<\/td>\n<td>220-240V<\/td>\n<td>L1 + N<\/td>\n<td>2P<\/td>\n<td>24kW \u1021\u1011\u102d<\/td>\n<td>\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u104a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1004\u101a\u103a\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<tr>\n<td>\u101e\u102f\u1036\u1038-\u1021\u1006\u1004\u1037\u103a<\/td>\n<td>380-415V<\/td>\n<td>L1 + L2 + L3 + N<\/td>\n<td>3P \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 4P<\/td>\n<td>400kW+ \u1021\u1011\u102d<\/td>\n<td>\u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u104a \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u101b\u1031\u1038\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1000\u103c\u102e\u1038\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<tr>\n<td>Split-Phase<\/td>\n<td>120\/240V<\/td>\n<td>L1 + L2 + N<\/td>\n<td>3P (\u1021\u1011\u1030\u1038)<\/td>\n<td>48kW \u1021\u1011\u102d<\/td>\n<td>\u1019\u103c\u1031\u102c\u1000\u103a\u1021\u1019\u1031\u101b\u102d\u1000 \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Single-phase-2P-vs-three-phase-4P-automatic-transfer-switches-comparison-in-industrial-setting.webp\" alt=\"Single-phase 2P vs three-phase 4P automatic transfer switches comparison in industrial setting\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u1015\u102f\u1036 \u1041: \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038 2-pole ATS \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1018\u102f\u1010\u103a\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u102f\u1036\u1038 4-pole ATS \u1001\u101c\u102f\u1010\u103a\u1002\u102e\u101a\u102c\u1018\u1031\u102c\u1004\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1001\u103b\u1000\u103a\u104b.<\/figcaption><\/figure>\n<h2>\u201c4th Pole\u201d \u1021\u1001\u1000\u103a\u1021\u1001\u1032: 3P \u1014\u103e\u1004\u1037\u103a 4P ATS \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f<\/h2>\n<p>\u1024\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1021\u1019\u103e\u102c\u1038\u1021\u101a\u103d\u1004\u103a\u1038\u1021\u1019\u103b\u102c\u1038\u1006\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u1015\u103d\u102c\u1038\u101e\u100a\u103a\u104b 3-pole \u1014\u103e\u1004\u1037\u103a 4-pole ATS \u1021\u1000\u103c\u102c\u1038\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u101e\u1004\u103a\u104f\u1005\u1014\u1005\u103a\u101e\u100a\u103a \u1000\u103c\u102c\u1038\u1014\u1031\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1000\u102c\u1000\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u101e\u100a\u103a\u1000\u102d\u102f \u1021\u1001\u103c\u1031\u1001\u1036\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<h3>3-Pole ATS: \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u104a \u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1000\u103c\u102c\u1038\u1014\u1031<\/h3>\n<p>3P ATS \u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u101e\u102f\u1036\u1038\u1001\u102f (L1, L2, L3) \u1000\u102d\u102f\u101e\u102c \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u1015\u103c\u102e\u1038 \u1000\u103c\u102c\u1038\u1014\u1031\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u1000\u102d\u102f <strong>\u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1016\u103c\u1010\u103a\u101e\u1014\u103a\u1038\u1006\u1000\u103a\u101e\u103d\u101a\u103a\u1019\u103e\u102f<\/strong> \u1015\u102b\u101d\u102b\u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1014\u103e\u1005\u103a\u1001\u102f\u1000\u103c\u102c\u1038\u1010\u103d\u1004\u103a \u1011\u102c\u1038\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li>\u1001\u101c\u102f\u1010\u103a\u1019\u103b\u102c\u1038: L1, L2, L3<\/li>\n<li>\u1016\u103c\u1010\u103a\u101e\u1014\u103a\u1038\u1006\u1000\u103a\u101e\u103d\u101a\u103a\u1019\u103e\u102f: \u1000\u103c\u102c\u1038\u1014\u1031 (N)<\/li>\n<li>\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038: \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a\u1010\u103d\u1004\u103a \u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u101e\u1031\u102c \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u1010\u103a<\/li>\n<li>\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c: \u1000\u103c\u102c\u1038\u1014\u1031\u1000\u102d\u102f \u1019\u103c\u1031\u1014\u103e\u1004\u1037\u103a\u1019\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1015\u102b (\u1019\u103c\u1031\u1014\u103e\u1004\u1037\u103a\u1019\u1011\u102d\u101e\u1031\u102c \u1000\u103c\u102c\u1038\u1014\u1031)<\/li>\n<\/ul>\n<p><strong>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a-<\/strong><br \/>\n    3P ATS \u1000\u102d\u102f\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1031\u102c\u1021\u1001\u102b \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u104f \u1000\u103c\u102c\u1038\u1014\u1031\u1000\u102d\u102f <strong>\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1010\u103d\u1004\u103a \u1019\u103c\u1031\u1014\u103e\u1004\u1037\u103a\u1019\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u101b\u1015\u102b\u104b<\/strong> \u1000\u103c\u102c\u1038\u1014\u1031\u1019\u103e \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u101d\u1004\u103a\u1015\u1031\u102b\u1000\u103a\u1010\u103d\u1004\u103a\u101e\u102c \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u101e\u100a\u103a \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u104f \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1000\u102d\u102f\u1038\u1000\u102c\u1038\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1019\u103b\u103e\u101d\u1031\u101e\u100a\u1037\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1019\u101b\u101b\u103e\u102d\u101e\u1031\u102c\u1005\u1014\u1005\u103a\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1000\u103c\u102c\u1038\u1014\u1031\u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c 3P ATS \u104f \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u1019\u103b\u102c\u1038:<\/strong><\/p>\n<ol>\n<li><strong>\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1000\u103d\u1004\u103a\u1038 \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>: \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1000\u103c\u102c\u1038\u1014\u1031\u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1000\u103c\u102c\u1038\u1014\u1031\u1018\u1010\u103a\u1005\u103a\u1000\u102c\u1038\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u101e\u1031\u102c\u1021\u1001\u102b\u104a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1005\u1014\u1005\u103a\u1014\u103e\u1005\u103a\u1001\u102f\u1000\u103c\u102c\u1038\u101b\u103e\u102d \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1014\u1031\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u1011\u1030\u1038\u101e\u1016\u103c\u1004\u1037\u103a <a href=\"https:\/\/test.viox.com\/my\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">\u101f\u102d\u102f\u1000\u103a\u1018\u101b\u1005\u103a \u1006\u102d\u102f\u101c\u102c-\u1018\u1000\u103a\u1011\u101b\u102e \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/a> \u1021\u1004\u103a\u1017\u102c\u1010\u102c\u101e\u100a\u103a DC \u1021\u1031\u102c\u1037\u1016\u103a\u1006\u1000\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u102d\u1010\u103a\u1006\u1000\u103a\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u1015\u103c\u103f\u1014\u102c\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>RCD\/GFCI \u1010\u103d\u1032\u1016\u1000\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f\u1019\u101b\u103e\u102d\u1001\u103c\u1004\u103a\u1038<\/strong>: <a href=\"https:\/\/test.viox.com\/my\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/\">\u1000\u103b\u1014\u103a\u101b\u103e\u102d\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c\u1019\u103b\u102c\u1038 (RCCBs)<\/a> \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u103c\u102c\u1038\u1014\u1031\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038\u101b\u103e\u102d \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u101e\u100a\u103a\u104b \u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1000\u103c\u102c\u1038\u1014\u1031\u1016\u103c\u1004\u1037\u103a\u104a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1001\u103c\u102c\u1038\u101c\u1019\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1015\u103c\u1014\u103a\u101e\u103d\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u1015\u103c\u102e\u1038 \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\u1019\u103b\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a - \u1015\u102d\u102f\u1006\u102d\u102f\u1038\u101e\u100a\u103a\u1019\u103e\u102c - \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1004\u103a\u1038 \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1005\u1031\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>\u1000\u103c\u102c\u1038\u1014\u1031\u1017\u102d\u102f\u1037\u1021\u102c\u1038 \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/strong>: \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1014\u103e\u1004\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1010\u103d\u1004\u103a \u1019\u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u102f\u1001\u1036\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101b\u103e\u102d\u1015\u102b\u1000 (\u101b\u103d\u1031\u1037\u101c\u103b\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1019\u103b\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101a\u102c\u101a\u102e\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1016\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a)\u104a \u1021\u102c\u1038\u1000\u102f\u1014\u103a\u101e\u103d\u102c\u1038\u101e\u1031\u102c \u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1000\u102d\u102f \u1000\u103c\u102c\u1038\u1014\u1031\u1018\u1010\u103a\u1005\u103a\u1000\u102c\u1038\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1011\u102c\u1038\u1006\u1032\u1016\u103c\u1005\u103a\u101e\u1031\u102c\u1021\u1001\u102b \u1000\u103c\u102c\u1038\u1014\u1031\u101e\u100a\u103a \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u101b\u103e\u102d\u101e\u1031\u102c \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u103b\u102c\u1038\u1021\u1011\u102d \u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u101b\u102e\u101c\u1031\u1038 \u1015\u100b\u102d\u1015\u1000\u1039\u1001\u1019\u103b\u102c\u1038<\/strong>: \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a <a href=\"https:\/\/test.viox.com\/my\/understanding-ground-fault-protection\/\">\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038<\/a> \u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1014\u103e\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1010\u103d\u1004\u103a \u1021\u102c\u1038\u1000\u102f\u1014\u103a\u101e\u103d\u102c\u1038\u101e\u1031\u102c \u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u104f \u1000\u103c\u102c\u1038\u1014\u1031\u101c\u1019\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103e\u1010\u1006\u1004\u1037\u103a \u1019\u103e\u102c\u1038\u101a\u103d\u1004\u103a\u1038\u101e\u1031\u102c \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1019\u103e\u102f \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038 \u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1014\u1031\u101e\u100a\u103a\u1000\u102d\u102f \u1010\u103d\u1031\u1037\u101b\u1015\u103c\u102e\u1038 \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1018\u1032 \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1019\u103b\u102c\u1038 \u1016\u103c\u1005\u103a\u1005\u1031\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/li>\n<\/ol>\n<h3>4-Pole ATS: \u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d \u1001\u103d\u1032\u1011\u102f\u1010\u103a\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>4P ATS \u101e\u100a\u103a <strong>\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u101c\u1031\u1038\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/strong>: L1, L2, L3 \u1014\u103e\u1004\u1037\u103a neutral \u1010\u102d\u102f\u1037\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1001\u103d\u1032\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c\u104a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101b\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li>Switches: L1, L2, L3, N<\/li>\n<li>Pass-through: \u1019\u101b\u103e\u102d\u1015\u102b (\u101c\u102f\u1036\u1038\u101d\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1016\u103c\u1005\u103a\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li>Grounding: \u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1005\u102e\u1010\u103d\u1004\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/li>\n<li>Generator: Generator \u1010\u103d\u1004\u103a Neutral \u101e\u100a\u103a \u1019\u103c\u1031\u1015\u103c\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>4-Pole Configuration \u104f \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038:<\/strong><\/p>\n<ol>\n<li><strong>\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101b\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f<\/strong>: \u1015\u102b\u101d\u102b\u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1005\u102e (utility, generator, solar inverter) \u101e\u100a\u103a \u104e\u1004\u103a\u1038\u104f\u1000\u102d\u102f\u101a\u103a\u1015\u102d\u102f\u1004\u103a neutral-ground bond \u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101c\u103d\u1010\u103a\u101c\u1015\u103a\u1005\u103d\u102c \u101b\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u1014\u1005\u103a\u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u101c\u102c\u101e\u100a\u103a\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a NEC Article 250.30 \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\u103c\u102e\u1038 parallel ground paths \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>Ground Loop \u1000\u102c\u1000\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038<\/strong>: \u1019\u101c\u103e\u102f\u1015\u103a\u101b\u103e\u102c\u1038\u101e\u1031\u102c \u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u1000\u102d\u102f \u101c\u102f\u1036\u1038\u101d\u1021\u1006\u1000\u103a\u1016\u103c\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1004\u1037\u103a \u1019\u1010\u1030\u100a\u102e\u101e\u1031\u102c grounding \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u102c\u1038 \u101c\u100a\u103a\u1015\u1010\u103a\u1014\u1031\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038 \u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1015\u102b\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">solar hybrid systems<\/a> inverter-based \u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a harmonics \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a DC components \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u102d\u1010\u103a\u1006\u1000\u103a\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u1037\u103a\u1014\u1031\u101b\u102c\u104b.<\/li>\n<li><strong>RCD Protection Compatibility<\/strong>: Ground fault protection devices \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u1005\u103d\u102c\u1021\u101c\u102f\u1015\u103a\u101c\u102f\u1015\u103a\u101e\u100a\u103a\u104a \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1006\u102d\u102f\u101e\u1031\u102c\u103a \u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1005\u102e\u104f protection \u101e\u100a\u103a \u104e\u1004\u103a\u1038\u104f\u1000\u102d\u102f\u101a\u103a\u1015\u102d\u102f\u1004\u103a fault currents \u1019\u103b\u102c\u1038\u1000\u102d\u102f\u101e\u102c \u1019\u103c\u1004\u103a\u1010\u103d\u1031\u1037\u101b\u1015\u103c\u102e\u1038 \u1021\u1001\u103c\u102c\u1038\u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u104f ground path \u1019\u103e \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1005\u103d\u1000\u103a\u1016\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u101e\u1031\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>Voltage Reference Stability<\/strong>: \u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1005\u102e\u101e\u100a\u103a \u104e\u1004\u103a\u1038\u104f\u1000\u102d\u102f\u101a\u103a\u1015\u102d\u102f\u1004\u103a\u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u101e\u1031\u102c neutral reference \u1000\u102d\u102f \u1010\u100a\u103a\u1011\u1031\u102c\u1004\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u101b\u1004\u103a\u1038\u1019\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u102c\u1038 neutral potential \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1016\u103c\u1005\u103a\u101e\u1031\u102c voltage \u1021\u1010\u1000\u103a\u1021\u1000\u103b\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/li>\n<\/ol>\n<h3>VIOX Engineering Recommendation<\/h3>\n<p><strong>hybrid solar-battery systems, generator backup installations \u1014\u103e\u1004\u1037\u103a \u1015\u102b\u101d\u102b\u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u1005\u103d\u102c\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u100a\u1037\u103a \u1019\u100a\u103a\u101e\u100a\u1037\u103a application \u1021\u1010\u103d\u1000\u103a\u1019\u1006\u102d\u102f VIOX \u101e\u100a\u103a 4-pole automatic transfer switches \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1011\u1030\u1038\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1015\u102b\u101e\u100a\u103a\u104b.<\/strong><\/p>\n<p>\u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a\u101e\u1031\u102c \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1010\u102d\u102f\u1038\u101c\u102c\u1019\u103e\u102f (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 3P units \u1019\u103b\u102c\u1038\u1011\u1000\u103a 15-25%) \u101e\u100a\u103a ground loop \u1015\u103c\u103f\u1014\u102c\u1019\u103b\u102c\u1038\u104a nuisance RCD tripping \u1014\u103e\u1004\u1037\u103a neutral voltage \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101c\u103b\u103e\u1004\u103a \u1021\u101b\u1031\u1038\u1019\u1015\u102b\u1015\u102b\u104b \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f \u1021\u1000\u103d\u1000\u103a\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u1010\u103d\u1004\u103a 2,000 \u1000\u103b\u1031\u102c\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/what-is-a-pv-combiner-box-and-why-your-solar-system-cant-function-without-one\/\">\u1006\u102d\u102f\u101c\u102c\u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1018\u1031\u102c\u1000\u103a\u1005\u103a<\/a> installations \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a 4P ATS configurations \u1000\u102d\u102f\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1031\u102c systems \u1019\u103b\u102c\u1038\u101e\u100a\u103a 3P configurations \u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u101c\u103b\u103e\u1004\u103a grounding \u1014\u103e\u1004\u1037\u103a\u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101e\u1031\u102c service calls 92% \u101c\u103b\u1031\u102c\u1037\u1014\u100a\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u101e\u1001\u1032\u1037\u101e\u100a\u103a\u104b.<\/p>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr>\n<th>\u1021\u1004\u103a\u1039\u1002\u102b<\/th>\n<th>3-Pole ATS<\/th>\n<th>4-Pole ATS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Phases Switched<\/strong><\/td>\n<td>L1, L2, L3<\/td>\n<td>L1, L2, L3, N<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1000\u103c\u102c\u1038\u1014\u1031 \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/strong><\/td>\n<td>Solid pass-through<\/td>\n<td>Switched (isolated)<\/td>\n<\/tr>\n<tr>\n<td><strong>Generator N-G Bond<\/strong><\/td>\n<td>\u1016\u101a\u103a\u101b\u103e\u102c\u1038\u101b\u1019\u100a\u103a<\/td>\n<td>generator \u1010\u103d\u1004\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1005\u1014\u1005\u103a\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/strong><\/td>\n<td>Non-separately derived<\/td>\n<td>Separately derived<\/td>\n<\/tr>\n<tr>\n<td><strong>Ground Loops<\/strong><\/td>\n<td>High risk<\/td>\n<td>\u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u103c\u102e\u1038<\/td>\n<\/tr>\n<tr>\n<td><strong>RCD Compatibility<\/strong><\/td>\n<td>\u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a<\/td>\n<td>Full compatibility<\/td>\n<\/tr>\n<tr>\n<td><strong>Hybrid Solar<\/strong><\/td>\n<td>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u101e\u100a\u103a\u1019\u101f\u102f\u1010\u103a<\/td>\n<td><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u101e\u100a\u103a\u104b<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Cost Premium<\/strong><\/td>\n<td>Base price<\/td>\n<td>+15-25%<\/td>\n<\/tr>\n<tr>\n<td><strong>NEC \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f<\/strong><\/td>\n<td>\u1002\u101b\u102f\u1010\u1005\u102d\u102f\u1000\u103a\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n<td>Automatic compliance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/VIOX-4-pole-ATS-internal-contactor-mechanism-showing-all-four-switching-poles-with-arc-suppression-chambers.webp\" alt=\"VIOX 4-pole ATS internal contactor mechanism showing all four switching poles with arc suppression chambers\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u1015\u102f\u1036 \u1042: L1, L2, L3 \u1014\u103e\u1004\u1037\u103a Neutral poles \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u1005\u103a\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a switching \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1014\u1031\u101e\u100a\u103a\u1000\u102d\u102f\u1015\u103c\u101e\u101e\u1031\u102c VIOX 4-pole ATS \u104f \u1021\u1010\u103d\u1004\u103a\u1038\u1015\u102d\u102f\u1004\u103a\u1038\u101a\u1014\u1039\u1010\u101b\u102c\u1038\u104b.<\/figcaption><\/figure>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Technical-wiring-diagram-comparing-3-pole-ATS-with-solid-neutral-vs-4-pole-ATS-with-switched-neutral-showing-ground-loop-prevention.webp\" alt=\"Technical wiring diagram comparing 3-pole ATS with solid neutral vs 4-pole ATS with switched neutral showing ground loop prevention\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u1015\u102f\u1036 \u1043: Schematic \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1001\u103b\u1000\u103a: 3-pole ATS (\u1018\u101a\u103a) \u101e\u100a\u103a ground loop \u1021\u1014\u1039\u1010\u101b\u102c\u101a\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u1015\u103c\u102e\u1038 4-pole ATS (\u100a\u102c) \u101e\u100a\u103a \u101c\u102f\u1036\u1038\u101d\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1016\u103c\u1005\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c grounding \u1000\u102d\u102f\u101e\u1031\u1001\u103b\u102c\u1005\u1031\u101e\u100a\u103a\u104b.<\/figcaption><\/figure>\n<h2>Split-Phase Systems: \u1019\u103c\u1031\u102c\u1000\u103a\u1021\u1019\u1031\u101b\u102d\u1000 \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u1011\u1031\u102c\u1004\u103a\u1001\u103b\u1031\u102c\u1000\u103a<\/h2>\n<p>\u1021\u1019\u1031\u101b\u102d\u1000\u1014\u103a\u104a \u1016\u102d\u101c\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1011\u102d\u102f\u1004\u103a\u101d\u1019\u103a\u1010\u102d\u102f\u1037\u1010\u103d\u1004\u103a \u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c Split-phase power \u101e\u100a\u103a transfer switches \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u100a\u1037\u103a \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1019\u103b\u102c\u1038\u1005\u103d\u102c\u1000\u102d\u102f \u1001\u101c\u102f\u1010\u103a\u1010\u102d\u102f\u1000\u103a\u1005\u1031\u101e\u100a\u1037\u103a \u1011\u1030\u1038\u1001\u103c\u102c\u1038\u101e\u1031\u102c\u1005\u102d\u1014\u103a\u1001\u1031\u102b\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u1004\u103a\u1015\u103c\u101e\u100a\u103a\u104b.<\/p>\n<h3>Split-Phase Power \u1006\u102d\u102f\u1010\u102c\u1018\u102c\u101c\u1032\u104b<\/h3>\n<p>Split-phase \u101e\u100a\u103a \u1015\u1031\u1038\u1015\u102d\u102f\u1037\u101e\u100a\u103a\u104b <strong>120V\/240V<\/strong> center-tapped transformer secondary winding \u1019\u103e\u1010\u1006\u1004\u1037\u103a:<\/p>\n<ul>\n<li>L1 to Neutral: 120V<\/li>\n<li>L2 to Neutral: 120V<\/li>\n<li>L1 to L2: 240V<\/li>\n<\/ul>\n<p>\u201csingle-phase\u201d \u101f\u102f\u1001\u1031\u102b\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 split-phase systems \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u101b\u103e\u102d\u101e\u100a\u103a\u104b <strong>two hot conductors<\/strong> (L1, L2) \u101e\u100a\u103a 180\u00b0 out of phase \u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 neutral conductor \u1010\u1005\u103a\u1001\u102f\u1015\u102b\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<h3>The ATS Selection Trap<\/h3>\n<p><strong>Common Error<\/strong>: split-phase systems \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a standard 2-pole ATS \u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u104b.<\/p>\n<p><strong>\u1015\u103c\u103f\u1014\u102c<\/strong>: true single-phase systems (one hot + neutral) \u1021\u1010\u103d\u1000\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c standard 2P ATS \u101e\u100a\u103a two hots \u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c split-phase systems \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1005\u103d\u102c \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b \u101e\u1004\u103a switch \u101c\u102f\u1015\u103a\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b <strong>both L1 and L2<\/strong>, \u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u1019\u101f\u102f\u1010\u103a\u1018\u1032\u104b.<\/p>\n<p><strong>Correct Solutions:<\/strong><\/p>\n<ol>\n<li><strong>Three-Pole ATS Configuration<\/strong>: L1, L2 \u1014\u103e\u1004\u1037\u103a neutral \u1000\u102d\u102f switch \u101b\u1014\u103a 3P ATS \u1000\u102d\u102f\u101e\u102f\u1036\u1038\u1015\u102b\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a split-phase system \u1000\u102d\u102f two phases \u101e\u102c\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1031\u102c three-phase system \u1000\u1032\u1037\u101e\u102d\u102f\u1037 \u101e\u1018\u1031\u102c\u1011\u102c\u1038\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>\u1021\u1011\u1030\u1038 Split-Phase 2P ATS<\/strong>: \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u1021\u1001\u103b\u102d\u102f\u1037\u101e\u100a\u103a L1 \u1014\u103e\u1004\u1037\u103a L2 \u1014\u103e\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1010\u1005\u103a\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u1015\u103c\u102e\u1038 neutral \u1000\u102d\u102f pass-through \u1021\u1016\u103c\u1005\u103a\u1011\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u1021\u1011\u1030\u1038\u1015\u103c\u102f 2P \u1001\u101c\u102f\u1010\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u1031\u1038\u1015\u102b\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u101e\u100a\u103a \u1021\u1011\u1000\u103a\u1010\u103d\u1004\u103a\u1006\u103d\u1031\u1038\u1014\u103d\u1031\u1038\u1011\u102c\u1038\u101e\u1031\u102c ground loop \u1015\u103c\u103f\u1014\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u1036\u1005\u102c\u1038\u1014\u1031\u101b\u1006\u1032\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/li>\n<\/ol>\n<h3>Split-Phase Application \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/h3>\n<p>\u1019\u103c\u1031\u102c\u1000\u103a\u1021\u1019\u1031\u101b\u102d\u1000\u101b\u103e\u102d \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a backup power systems \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a (\u1015\u102f\u1036\u1019\u103e\u1014\u103a 200A \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f)<\/p>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u101e\u100a\u103a\u104b<\/strong>: <strong>neutral switching \u1015\u102b\u101e\u1031\u102c 3-pole ATS<\/strong> \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a <strong>4-pole ATS<\/strong> (L1+L2+N+spare \u1021\u1016\u103c\u1005\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u1000)<\/p>\n<p>\u1024\u1015\u102f\u1036\u1005\u1036\u101e\u100a\u103a-<\/p>\n<ul>\n<li>hot legs (L1, L2) \u1014\u103e\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u1005\u102e\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b<\/li>\n<li>neutral \u1000\u102d\u102f \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a (generator systems \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1000\u103c\u1036\u1015\u103c\u102f\u101e\u100a\u103a)<\/li>\n<li>120V (L1 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a L2 \u1019\u103e N) \u1014\u103e\u1004\u1037\u103a 240V (L1 \u1019\u103e L2) \u101d\u1014\u103a\u1019\u103b\u102c\u1038 \u1014\u103e\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1005\u103d\u102c\u101c\u100a\u103a\u1015\u1010\u103a\u1005\u1031\u101e\u100a\u103a\u104b<\/li>\n<li>utility \u1014\u103e\u1004\u1037\u103a generator neutrals \u1021\u1000\u103c\u102c\u1038 backfeed \u1000\u102d\u102f\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 Wiring \u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a<\/strong>: split-phase \u1000\u102d\u102f 3P \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 4P ATS \u101e\u102d\u102f\u1037 \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u101e\u1031\u102c\u1021\u1001\u102b-<\/p>\n<ul>\n<li>L1 \u2192 ATS Terminal 1<\/li>\n<li>L2 \u2192 ATS Terminal 2<\/li>\n<li>Terminal 3 \u2192 \u1017\u101c\u102c\u1011\u102c\u1038\u1015\u102b \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a neutral switching \u1021\u1010\u103d\u1000\u103a\u101e\u102f\u1036\u1038\u1015\u102b\u104b<\/li>\n<li>N \u2192 Dedicated neutral terminal (4P \u1016\u103c\u1005\u103a\u1015\u102b\u1000) \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a solid bus (3P \u1016\u103c\u1005\u103a\u1015\u102b\u1000)<\/li>\n<\/ul>\n<p>\u1024\u101e\u100a\u103a\u1019\u103e\u102c \u1021\u1011\u1030\u1038\u101e\u1016\u103c\u1004\u1037\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u1015\u102b\u101e\u100a\u103a\u104b <a href=\"https:\/\/test.viox.com\/my\/ev-charger-circuit-breaker-sizing-guide-7kw-22kw\/\">EV charger \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/a> Level 2 charging \u1021\u1010\u103d\u1000\u103a 240V split-phase power \u101c\u102d\u102f\u1021\u1015\u103a\u101c\u1031\u1037\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/North-American-split-phase-120V240V-system-wiring-diagram-showing-correct-and-incorrect-ATS-configurations.webp\" alt=\"North American split-phase 120V\/240V system wiring diagram showing correct and incorrect ATS configurations\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u1015\u102f\u1036 4- 2-pole ATS \u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1019\u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a 3-pole \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 4-pole \u101a\u1030\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037 configure \u101c\u102f\u1015\u103a\u101e\u1004\u1037\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u101e\u1011\u102c\u1038\u101e\u1031\u102c split-phase systems \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a Wiring diagram\u104b.<\/figcaption><\/figure>\n<h2>Load Balancing \u1014\u103e\u1004\u1037\u103a Phase Voltage Stability<\/h2>\n<p>\u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1019\u100a\u102e\u1019\u103b\u103e\u101e\u1031\u102c loading \u101e\u100a\u103a ATS \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1014\u103e\u1004\u1037\u103a \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u1011\u102d\u1001\u102d\u102f\u1000\u103a\u1005\u1031\u101e\u1031\u102c \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1015\u103c\u103f\u1014\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u104f \u101b\u1030\u1015\u1017\u1031\u1012<\/h3>\n<p>\u101c\u102f\u1036\u1038\u101d\u1019\u103b\u103e\u1010\u101e\u1031\u102c \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1010\u103d\u1004\u103a\u104a \u1021\u1006\u1004\u1037\u103a\u1010\u1005\u103a\u1001\u102f\u1005\u102e\u101e\u100a\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c current (\u00b110%) \u1000\u102d\u102f \u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u1015\u103c\u102e\u1038 neutral \u101e\u100a\u103a \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 current (\u1021\u1013\u102d\u1000\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a harmonics) \u1000\u102d\u102f \u101e\u101a\u103a\u1006\u1031\u102c\u1004\u103a\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u1019\u1039\u1018\u102c\u101b\u103e\u102d \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1024\u1019\u103b\u103e\u1010\u1019\u103e\u102f\u1000\u102d\u102f \u101b\u101b\u103e\u102d\u1001\u1032\u101e\u100a\u103a\u104a \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103e\u102c-<\/p>\n<ol>\n<li><strong>Single-Phase Load \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u1019\u103e\u102f<\/strong>: \u1005\u102e\u1038\u1015\u103d\u102c\u1038\u1016\u103c\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u101d\u1014\u103a\u1021\u1019\u103b\u102c\u1038\u1005\u102f\u101e\u100a\u103a single-phase \u1016\u103c\u1005\u103a\u101e\u100a\u103a (<a href=\"https:\/\/test.viox.com\/my\/timer-switch-for-pump\/\">\u1019\u102e\u1038\u1021\u101c\u1004\u103a\u1038\u101b\u1031\u102c\u1004\u103a<\/a>, \u101b\u102f\u1036\u1038\u101e\u102f\u1036\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u104a \u1000\u103d\u1014\u103a\u1015\u103b\u1030\u1010\u102c\u1019\u103b\u102c\u1038)\u104b \u1024\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1006\u1004\u1037\u103a\u1010\u1005\u103a\u1001\u102f \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1014\u103e\u1005\u103a\u1001\u102f\u1010\u103d\u1004\u103a \u1005\u102f\u1005\u100a\u103a\u1038\u101e\u1031\u102c\u1021\u1001\u102b\u104a \u101e\u102d\u101e\u102c\u1011\u1004\u103a\u101b\u103e\u102c\u1038\u101e\u1031\u102c \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>Motor Inrush Currents<\/strong>: \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a <a href=\"https:\/\/test.viox.com\/my\/contactor-vs-circuit-breaker\/\">motors \u1014\u103e\u1004\u1037\u103a contactors<\/a> startup \u1005\u1009\u103a\u1021\u1010\u103d\u1004\u103a\u1038 high inrush currents \u1000\u102d\u102f \u1006\u103d\u1032\u101a\u1030\u1015\u102b\u104b \u1005\u1014\u1005\u103a\u101e\u100a\u103a \u1019\u100a\u102e\u1019\u103b\u103e\u1016\u103c\u1005\u103a\u1014\u1031\u1015\u102b\u1000\u104a \u1024\u101a\u102c\u101a\u102e\u1016\u103c\u1005\u103a\u101b\u1015\u103a\u101e\u100a\u103a ATS phase loss \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a voltage \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/li>\n<li><strong>Solar Inverter Output<\/strong>: <a href=\"https:\/\/test.viox.com\/my\/what-is-a-hybrid-inverter\/\">Hybrid inverters<\/a> \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u1011\u1030\u1038\u101e\u1016\u103c\u1004\u1037\u103a \u1018\u1000\u103a\u1011\u101b\u102e\u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1014\u103a\u101c\u103e\u1014\u103a\u1001\u103c\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1010\u1005\u103a\u1015\u103c\u102d\u102f\u1004\u103a\u1014\u1000\u103a\u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u101e\u1031\u102c\u1021\u1001\u102b \u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a\u1019\u100a\u102e\u1019\u103b\u103e\u101e\u1031\u102c output \u1000\u102d\u102f \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/li>\n<\/ol>\n<h3>\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u101e\u100a\u103a ATS \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1021\u1000\u103b\u102d\u102f\u1038\u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u101e\u1014\u100a\u103a\u1038\u104b<\/h3>\n<p>\u1001\u1031\u1010\u103a\u1019\u102e automatic transfer switches \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u101e\u100a\u103a\u104b <strong>voltage magnitude \u1014\u103e\u1004\u1037\u103a phase angle<\/strong> conductors \u1021\u102c\u1038\u101c\u102f\u1036\u1038\u1010\u103d\u1004\u103a\u104b \u1015\u102f\u1036\u1019\u103e\u1014\u103a ATS voltage \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038-<\/p>\n<ul>\n<li><strong>Phase-to-Phase Voltage \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f<\/strong>: \u1015\u103b\u1019\u103a\u1038\u1019\u103b\u103e\u1019\u103e \u00b110%<\/li>\n<li><strong>Phase Loss Detection<\/strong>: \u1019\u100a\u103a\u101e\u100a\u1037\u103a\u1021\u1006\u1004\u1037\u103a\u1019\u1006\u102d\u102f 85% nominal \u1021\u1031\u102c\u1000\u103a\u101e\u102d\u102f\u1037 \u1000\u103b\u1006\u1004\u103a\u1038\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n<li><strong>Neutral Shift Detection<\/strong>: Neutral voltage \u101e\u100a\u103a 10% phase voltage \u1011\u1000\u103a\u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<p><strong>\u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u103b\u101b\u103e\u102f\u1036\u1038\u1019\u103e\u102f\u1021\u1001\u103c\u1031\u1021\u1014\u1031-<\/strong><\/p>\n<p>\u100a\u1036\u1037\u1016\u103b\u1004\u103a\u1038\u101e\u1031\u102c load balance \u1015\u102b\u101e\u1031\u102c 415V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a-<\/p>\n<ul>\n<li>L1: 95A (\u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1014\u103e\u1004\u1037\u103a\u1014\u102e\u1038\u1005\u1015\u103a\u101e\u100a\u103a)<\/li>\n<li>L2: 45A (\u1021\u101c\u1004\u103a\u1038\u101d\u1014\u103a)<\/li>\n<li>L3: 60A (\u1021\u101c\u101a\u103a\u1021\u101c\u1010\u103a\u101d\u1014\u103a)<\/li>\n<\/ul>\n<p>\u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1026\u101e\u100a\u103a \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c <a href=\"https:\/\/test.viox.com\/my\/how-to-select-contactors-and-circuit-breakers-based-on-motor-power\/\">\u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1019\u1031\u102c\u103a\u1010\u102c<\/a> (\u1025\u1015\u1019\u102c\u104a HVAC compressor) \u1000\u102d\u102f \u1005\u1010\u1004\u103a\u101e\u1031\u102c\u1021\u1001\u102b\u104a L1 voltage \u101e\u100a\u103a 380V \u101e\u102d\u102f\u1037 \u1000\u103b\u1006\u1004\u103a\u1038\u101e\u103d\u102c\u1038\u1015\u103c\u102e\u1038 L2 \u1014\u103e\u1004\u1037\u103a L3 \u101e\u100a\u103a 410V \u1010\u103d\u1004\u103a \u101b\u103e\u102d\u1014\u1031\u101e\u100a\u103a\u104b ATS controller \u101e\u100a\u103a \u1024 7.3% \u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u1001\u103b\u1031\u101b\u103e\u102d\u101e\u1031\u102c phase loss \u1021\u1016\u103c\u1005\u103a \u1021\u1013\u102d\u1015\u1039\u1015\u102c\u101a\u103a\u1016\u103d\u1004\u1037\u103a\u1006\u102d\u102f\u1015\u103c\u102e\u1038 generator \u101e\u102d\u102f\u1037 \u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1018\u1032 \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u1031\u1038\u1000\u102c \u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1021\u101a\u103e\u1000\u103a\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a\u1006\u1000\u103a\u1005\u1015\u103a\u101e\u1031\u102c ATS \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p><strong>\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038-<\/strong><\/p>\n<ol>\n<li><strong>Load \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u1019\u103e\u102f \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038<\/strong>: \u1000\u1014\u1026\u1038\u1010\u1015\u103a\u1006\u1004\u103a\u1005\u1009\u103a\u1021\u1010\u103d\u1004\u103a\u1038\u104a \u1021\u1011\u103d\u1010\u103a\u1021\u1011\u102d\u1015\u103a\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1004\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u1010\u1005\u103a\u1001\u102f\u1005\u102e\u101b\u103e\u102d current \u1000\u102d\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1015\u102b\u104b \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1016\u103c\u1014\u1037\u103a\u101d\u1031\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/single-phase-vs-three-phase-panelboards-guide\/\">single-phase \u101d\u1014\u103a\u1019\u103b\u102c\u1038<\/a> L1, L2, L3 \u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a \u00b115% \u1019\u103b\u103e\u1010\u1019\u103e\u102f\u1000\u102d\u102f \u101b\u101b\u103e\u102d\u101b\u1014\u103a\u104b.<\/li>\n<li><strong>Motor Soft Starters<\/strong>: \u1010\u1015\u103a\u1006\u1004\u103a\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/star-delta-starter-wiring-diagram-sizing-selection-guide\/\">soft start controllers<\/a> \u1005\u1010\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u103b\u1006\u1004\u103a\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u1031\u102c \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b.<\/li>\n<li><strong>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1000\u102d\u102f \u1010\u102d\u102f\u1038\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038<\/strong>: \u101e\u1004\u103a\u104f ATS \u101e\u100a\u103a \u1001\u101b\u102e\u1038\u1005\u1009\u103a\u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1000\u104a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1000\u102d\u102f 10% \u1019\u103e 15% \u101e\u102d\u102f\u1037 \u1010\u102d\u102f\u1038\u1019\u103c\u103e\u1004\u1037\u103a\u1015\u102b (\u1011\u1031\u102c\u1000\u103a\u1015\u1036\u1037\u1019\u103e\u102f\u1021\u101b\u100a\u103a\u1021\u101e\u103d\u1031\u1038 \u1001\u103d\u1004\u1037\u103a\u1015\u103c\u102f\u1019\u103e\u101e\u102c)\u104b \u1005\u1000\u103a\u101b\u102f\u1036\u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1001\u103c\u1004\u103a\u1038\u1019\u1015\u103c\u102f\u1019\u102e VIOX \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1021\u1000\u1030\u1021\u100a\u102e\u1000\u102d\u102f \u1010\u102d\u102f\u1004\u103a\u1015\u1004\u103a\u1015\u102b\u104b.<\/li>\n<li><strong>\u1021\u1006\u1004\u1037\u103a \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1001\u103c\u1004\u103a\u1038 Panel \u1019\u103b\u102c\u1038<\/strong>: \u1021\u1013\u102d\u1000\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1010\u1005\u103a\u1006\u1004\u1037\u103a\u1010\u100a\u103a\u1038\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u1021\u1006\u1031\u102c\u1000\u103a\u1021\u1021\u102f\u1036\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a \u1021\u1006\u1004\u1037\u103a\u1019\u103b\u102c\u1038\u1010\u1005\u103a\u101c\u103b\u103e\u1031\u102c\u1000\u103a \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u103d\u1031\u1037\u101c\u103b\u102c\u1038\u1005\u1031\u101e\u1031\u102c \u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1001\u103c\u1004\u103a\u1038 \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038 panel \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u1015\u103a\u1006\u1004\u103a\u1015\u102b\u104b.<\/li>\n<li><strong>\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038<\/strong>: \u1019\u100a\u102e\u1019\u103b\u103e\u101e\u1031\u102c \u101d\u1014\u103a\u1010\u1004\u103a\u1014\u1031\u1005\u1009\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1010\u100a\u103a\u1004\u103c\u102d\u1019\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u1014\u103a\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u101e\u100a\u103a \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101d\u1014\u103a\u1011\u1000\u103a \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 25% \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u1031\u1001\u103b\u102c\u1015\u102b\u1005\u1031\u104b \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1019\u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u101e\u100a\u103a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1015\u103c\u103f\u1014\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u102d\u102f\u1019\u102d\u102f\u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u1005\u1031\u1019\u100a\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/li>\n<\/ol>\n<p>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101e\u1004\u103a\u104f ATS \u101e\u100a\u103a \u1019\u1000\u103c\u102c\u1001\u100f \u1021\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1021\u101a\u103e\u1000\u103a\u1016\u103c\u1005\u103a\u1005\u1031\u101e\u1031\u102c \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u103c\u102f\u1036\u1010\u103d\u1031\u1037\u101b\u1015\u102b\u1000\u104a \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u1010\u102d\u102f\u1037\u104f \u1015\u103c\u100a\u1037\u103a\u1005\u102f\u1036\u101e\u1031\u102c <a href=\"https:\/\/test.viox.com\/my\/ats-troubleshooting-generator-wont-transfer\/\">ATS \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> \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u1001\u103c\u1004\u103a\u1038\u104a relay \u1006\u1000\u103a\u1010\u1004\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a CT \u1021\u1001\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038 \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038 \u101c\u102f\u1015\u103a\u1011\u102f\u1036\u1038\u101c\u102f\u1015\u103a\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1014\u1031\u102c\u1000\u103a\u1011\u1015\u103a \u1005\u1014\u1005\u103a\u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038 \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u101b\u1014\u103a\u1019\u103b\u102c\u1038<\/h3>\n<p>ATS \u1000\u102d\u102f \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1005\u1014\u1005\u103a\u1021\u101e\u1005\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u101c\u1000\u103a\u101b\u103e\u102d\u1005\u1014\u1005\u103a\u1010\u103d\u1004\u103a \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u101e\u100a\u1037\u103a\u1021\u1001\u102b\u104a \u1024\u1006\u1000\u103a\u1005\u1015\u103a\u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u1015\u102b\u104b<\/p>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/my\/what-is-breaker-selectivity-coordination-guide\/\"><strong>\u1006\u102c\u1038\u1000\u1005\u103a\u1018\u101b\u102d\u1010\u103a\u1000\u102c \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038<\/strong><\/a>: ATS \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038 \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1004\u103a\u1038 \u1021\u1011\u1000\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1031\u102c\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038 \u1021\u1000\u102c\u1021\u1000\u103d\u101a\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1005\u1014\u1005\u103a\u1010\u1000\u103b \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u103d\u1000\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u1031\u1001\u103b\u102c\u1015\u102b\u1005\u1031\u104b<\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/surge-protection-devices-vs-surge-arresters\/\"><strong>\u101b\u1031\u101c\u103e\u102d\u102f\u1004\u103a\u1038\u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038<\/strong><\/a>: \u1001\u101c\u102f\u1010\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u101c\u102c\u101e\u1031\u102c \u101a\u102c\u101a\u102e\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1019\u103e \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a ATS \u104f \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1014\u103e\u1005\u103a\u1016\u1000\u103a\u1005\u101c\u102f\u1036\u1038\u1010\u103d\u1004\u103a Type 2 SPDs \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u1015\u103a\u1006\u1004\u103a\u1015\u102b\u104b<\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/how-to-ground-an-electrical-panel\/\"><strong>\u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c\u1019\u103c\u1031\u1015\u103c\u1004\u103a<\/strong><\/a>: \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u101c\u103b\u103e\u1015\u103a\u1000\u1030\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101b\u101b\u103e\u102d\u101e\u1031\u102c\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1000\u102f\u1012\u103a\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\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u1015\u102b\u104b<\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/load-center-vs-panelboard-nec-guide\/\"><strong>\u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038 Panel \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1001\u103c\u1004\u103a\u1038<\/strong><\/a>: panel \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f ATS \u1021\u1011\u103d\u1000\u103a\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1010\u102d\u102f\u1004\u103a\u1021\u101b\u1031\u1021\u1010\u103d\u1000\u103a \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1021\u1031\u102c\u1004\u103a\u1011\u102c\u1038\u1015\u102b\u104b<\/li>\n<\/ul>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Three-phase-load-imbalance-effects-on-ATS-performance-showing-balanced-vs-unbalanced-system-comparison-with-voltage-and-current-measurements.webp\" alt=\"Three-phase load imbalance effects on ATS performance showing balanced vs unbalanced system comparison with voltage and current measurements\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u1015\u102f\u1036 \u1045- ATS \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1021\u1015\u1031\u102b\u103a \u101d\u1014\u103a\u1019\u100a\u102e\u1019\u103b\u103e\u1019\u103e\u102f\u104f \u1021\u1000\u103b\u102d\u102f\u1038\u1006\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1019\u103c\u1004\u103a\u101e\u102c\u1005\u1031\u1001\u103c\u1004\u103a\u1038\u104a \u100a\u102e\u1019\u103b\u103e\u101e\u1031\u102c\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u1019\u100a\u102e\u1019\u103b\u103e\u101e\u1031\u102c \u101e\u1010\u102d\u1015\u1031\u1038\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u103c\u101e\u1001\u103c\u1004\u103a\u1038\u104b.<\/figcaption><\/figure>\n<h2>\u1021\u1019\u103c\u1014\u103a\u1000\u102d\u102f\u1038\u1000\u102c\u1038\u1001\u103b\u1000\u103a- ATS \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1007\u101a\u102c\u1038<\/h2>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr>\n<th>\u101c\u103b\u103e\u1031\u102c\u1000\u103a\u101c\u103d\u103e\u102c<\/th>\n<th>\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1005\u1014\u1005\u103a<\/th>\n<th>\u101d\u1014\u103a\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/th>\n<th>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c ATS<\/th>\n<th>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u101b\u1014\u103a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a \u1021\u101b\u1014\u103a\u1005\u1014\u1005\u103a<\/td>\n<td>240V \u1010\u1005\u103a\u1006\u1004\u1037\u103a<\/td>\n<td>\u101b\u1031\u102c\u1014\u103e\u1031\u102c\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038<\/td>\n<td>2P (100-200A)<\/td>\n<td>\u1005\u1036 2-\u1010\u102d\u102f\u1004\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td>RV\/\u1019\u102d\u102f\u1018\u102d\u102f\u1004\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/td>\n<td>120\/240V \u1014\u103e\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1006\u1004\u1037\u103a<\/td>\n<td>\u101b\u1031\u102c\u1014\u103e\u1031\u102c\u1011\u102c\u1038\u101e\u1031\u102c 120V+240V<\/td>\n<td>3P \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 4P (30-50A)<\/td>\n<td>\u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038\u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1019\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td>Small commercial<\/td>\n<td>240V \u1010\u1005\u103a\u1006\u1004\u1037\u103a<\/td>\n<td>\u101b\u102f\u1036\u1038\u1001\u1014\u103a\u1038 + HVAC<\/td>\n<td>2P (200-400A)<\/td>\n<td>\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1015\u102b<\/td>\n<\/tr>\n<tr>\n<td>\u1015\u1031\u102b\u1037\u1015\u102b\u1038\u101e\u1031\u102c \u1005\u1000\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038<\/td>\n<td>415V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a<\/td>\n<td>\u1019\u1031\u102c\u103a\u1010\u102c\u1021\u1019\u103b\u102c\u1038\u1005\u102f<\/td>\n<td>3P (100-400A)<\/td>\n<td>\u1000\u103c\u102c\u1038\u1014\u1031\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1010\u100a\u103a\u1014\u1031\u101b\u102c\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b<\/td>\n<\/tr>\n<tr>\n<td><strong>\u101f\u102d\u102f\u1000\u103a\u1018\u101b\u1005\u103a \u1006\u102d\u102f\u101c\u102c<\/strong><\/td>\n<td><strong>415V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a<\/strong><\/td>\n<td><strong>Inverter + grid<\/strong><\/td>\n<td><strong>4P (63-250A)<\/strong><\/td>\n<td><strong>\u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1000\u103d\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c \u1021\u101b\u1014\u103a\u1005\u1014\u1005\u103a<\/td>\n<td>400V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a<\/td>\n<td>Critical loads<\/td>\n<td>4P (100-630A)<\/td>\n<td>\u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101b\u101b\u103e\u102d\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td>\u1012\u1031\u1010\u102c\u1005\u1004\u103a\u1010\u102c<\/td>\n<td>400V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a<\/td>\n<td>UPS \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/td>\n<td>4P (400-1000A)<\/td>\n<td>\u1019\u103c\u1014\u103a\u1006\u1014\u103a\u101e\u1031\u102c \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103e\u102f\u104a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u103e\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038<\/td>\n<\/tr>\n<tr>\n<td>\u1000\u102f\u1014\u103a\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038<\/td>\n<td>415V \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a<\/td>\n<td>Heavy machinery<\/td>\n<td>4P (250-800A)<\/td>\n<td>\u101d\u1014\u103a\u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u1021\u1019\u1031\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c\u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103b\u102c\u1038- \u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u101e\u1031\u102c ATS \u1010\u102d\u102f\u1004\u103a\u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/h2>\n<p><strong>\u1019\u1031\u1038- 4-\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038 \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u1016\u103c\u1004\u1037\u103a 3-\u1010\u102d\u102f\u1004\u103a ATS \u1000\u102d\u102f \u101e\u102f\u1036\u1038\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>\u101f\u102f\u1010\u103a\u1000\u1032\u1037\u104a \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u101e\u1004\u103a\u101e\u100a\u103a \u1001\u102d\u102f\u1004\u103a\u1019\u102c\u101e\u1031\u102c \u1000\u103c\u102c\u1038\u1014\u1031\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1000\u103c\u102c\u1038\u1014\u1031\u101e\u100a\u103a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u1011\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u1031\u1001\u103b\u102c\u1019\u103e\u101e\u102c \u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u101e\u100a\u103a \u101e\u102e\u1038\u1001\u103c\u102c\u1038\u101b\u101b\u103e\u102d\u101e\u1031\u102c\u1005\u1014\u1005\u103a\u1019\u101f\u102f\u1010\u103a\u1018\u1032 \u101c\u100a\u103a\u1015\u1010\u103a\u101b\u1019\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038\u104a <a href=\"https:\/\/test.viox.com\/my\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">\u101f\u102d\u102f\u1000\u103a\u1018\u101b\u1005\u103a \u1006\u102d\u102f\u101c\u102c\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/a> \u1014\u103e\u1004\u1037\u103a RCD \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c \u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a \u1019\u103c\u1031\u1005\u102d\u102f\u1000\u103a\u1000\u103d\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \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\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u103e\u1031\u102c\u1004\u103a\u101b\u103e\u102c\u1038\u101b\u1014\u103a VIOX \u1019\u103e 4-\u1010\u102d\u102f\u1004\u103a \u1016\u103d\u1032\u1037\u1005\u100a\u103a\u1038\u1015\u102f\u1036\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u104f \u1014\u103e\u1005\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1006\u1004\u1037\u103a\u1005\u1014\u1005\u103a\u101e\u100a\u103a \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a 3-\u1010\u102d\u102f\u1004\u103a \u101c\u103d\u103e\u1032\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u101c\u102f\u1010\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1014\u100a\u103a\u1038\u104b<\/strong><\/p>\n<p>Split-phase 120\/240V systems have two hot conductors (L1, L2) that must both be switched to properly serve 240V loads and maintain balanced 120V circuits. A standard 2-pole switch only switches one hot leg, leaving half your 120V circuits and all 240V loads unpowered during transfer. Use a 3P ATS configured for split-phase, or preferably a 4P ATS with neutral switching.<\/p>\n<p><strong>\u1019\u1031\u1038- 3-\u1010\u102d\u102f\u1004\u103a ATS \u1005\u1014\u1005\u103a\u1010\u103d\u1004\u103a \u1002\u103b\u1004\u103a\u1014\u101b\u1031\u1010\u102c\u1000\u103c\u102c\u1038\u1014\u1031\u1000\u102d\u102f \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u102d\u1015\u102b\u1000 \u1018\u102c\u1016\u103c\u1005\u103a\u1019\u101c\u1032\u104b<\/strong><\/p>\n<p>You create a dangerous parallel ground path. When both utility and generator neutrals are bonded to ground and connected through the solid neutral bus, ground fault currents can return through either path. This violates NEC 250.20 requirements, causes ground fault protective devices to malfunction, and creates circulating currents between different grounding electrodes. Always remove generator neutral-ground bonds when using a 3P ATS.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u104f\u1005\u1014\u1005\u103a\u101e\u100a\u103a ATS \u1015\u103c\u103f\u1014\u102c\u1019\u103b\u102c\u1038\u1016\u103c\u1005\u103a\u1005\u1031\u101b\u1014\u103a \u1019\u100a\u102e\u1019\u103b\u103e\u101c\u1031\u102c\u1000\u103a\u1021\u1031\u102c\u1004\u103a \u101b\u103e\u102d\u1019\u101b\u103e\u102d \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a\u1014\u100a\u103a\u1038\u104b<\/strong><\/p>\n<p>\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u101c\u100a\u103a\u1015\u1010\u103a\u1014\u1031\u1005\u1009\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/how-to-really-test-mccb-test-button-lie\/\">clamp meter \u1016\u103c\u1004\u1037\u103a<\/a>. Calculate the imbalance using this formula:<\/p>\n<blockquote>\n<p>Imbalance % = (Max Deviation from Average \/ Average Current) \u00d7 100<\/p>\n<\/blockquote>\n<p>If imbalance exceeds 20%, redistribute single-phase loads across phases or adjust ATS voltage imbalance trip settings (if allowed). Refer to our <a href=\"https:\/\/test.viox.com\/my\/ats-troubleshooting-generator-wont-transfer\/\">ATS \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> for detailed measurement procedures.<\/p>\n<p><strong>Q: Can I retrofit a 3-pole ATS to 4-pole configuration?<\/strong><\/p>\n<p>No. The mechanical construction and contact arrangement are fundamentally different. A 3-pole ATS has three switching contacts plus a solid neutral bus bar. A 4-pole ATS has four independent switching contacts. Upgrading requires complete ATS replacement. VIOX offers retrofit services with minimal downtime for critical applications\u2014contact technical support for site assessment.<\/p>\n<p><strong>Q: Do I need different circuit breakers for 3P vs. 4P ATS systems?<\/strong><\/p>\n<p>Upstream and downstream <a href=\"https:\/\/test.viox.com\/my\/types-of-circuit-breakers\/\">\u1006\u102c\u1038\u1000\u1005\u103a\u1019\u102d\u103b<\/a> should match the ATS pole configuration. For 3P ATS systems, use 3-pole <a href=\"https:\/\/test.viox.com\/my\/what-is-a-molded-case-circuit-breaker-mccb\/\">MCCBs<\/a> \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a <a href=\"https:\/\/test.viox.com\/my\/complete-guide-to-air-circuit-breakers-acb\/\">Breaker \u1010\u103d\u1031\u1000 (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u201cAir Circuit Breakers\u201d \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a<\/a>. For 4P ATS systems, use 4-pole breakers to maintain complete source isolation. This is especially critical in <a href=\"https:\/\/test.viox.com\/my\/what-does-a-solar-combiner-box-do\/\">solar installations<\/a> where DC and AC systems must remain isolated.<\/p>\n<hr>\n<p><strong>VIOX \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a<\/strong> has supplied over 15,000 automatic transfer switches to industrial and commercial customers worldwide since 2008. Our engineering team provides complimentary system design reviews for projects requiring specialized ATS configurations. Contact our technical support at <a href=\"mailto:sales@viox.com\">sales@viox.com<\/a> or visit our complete <a href=\"https:\/\/test.viox.com\/my\/\">ATS product line<\/a> for specifications and drawings.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Understanding Single-Phase vs. Three-Phase Power Systems Single-Phase Systems (1P+N): 220-240V Applications Single-phase power systems operate at 220-240V and consist of one hot conductor (L1) and one neutral conductor (N). These systems typically require a 2-pole (2P) automatic transfer switch that switches both the hot conductor and neutral simultaneously. Primary Applications: Residential buildings and apartments Small [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21246,"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-21245","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\/21245","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=21245"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21245\/revisions"}],"predecessor-version":[{"id":21247,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21245\/revisions\/21247"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media\/21246"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media?parent=21245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/categories?post=21245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/tags?post=21245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}