{"id":21431,"date":"2026-01-25T14:12:34","date_gmt":"2026-01-25T06:12:34","guid":{"rendered":"https:\/\/viox.com\/?p=21431"},"modified":"2026-01-25T14:16:12","modified_gmt":"2026-01-25T06:16:12","slug":"ac-7a-vs-ac-7b-modular-contactor-failure-motor-loads","status":"publish","type":"post","link":"https:\/\/test.viox.com\/my\/ac-7a-vs-ac-7b-modular-contactor-failure-motor-loads\/","title":{"rendered":"AC-7a vs. AC-7b: Why Your Modular Contactors Are Failing on Inductive Loads"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102f\u1014\u103a\u101e\u103d\u101a\u103a\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u102f\u1036\u1038 \u1021\u101c\u1004\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u101e\u102f\u1036\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a modular contactor \u1019\u103b\u102c\u1038 \u1005\u1031\u102c\u1005\u102e\u1038\u1005\u103d\u102c \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u101b\u1001\u103c\u1004\u103a\u1038\u104f \u1021\u1013\u102d\u1000\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1004\u103a\u1038\u1019\u103e\u102c \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1021\u1019\u103e\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1016\u103c\u1005\u103a\u1010\u1010\u103a\u101e\u100a\u103a\u104b AC-7a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c contactor \u1000\u102d\u102f AC-7b application \u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b IEC 61095 \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1024\u1021\u101e\u1031\u1038\u1021\u1016\u103d\u1032\u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u101e\u100a\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u104a \u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a compressor \u1019\u103b\u102c\u1038\u1000\u1032\u1037\u101e\u102d\u102f\u1037\u101e\u1031\u102c inductive load \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u1037\u103a\u1021\u1001\u102b \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u101b\u101e\u1031\u102c \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u101e\u1031\u102c\u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1000\u103c\u102c\u1038 \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1000\u102d\u102f\u101a\u103a\u1005\u102c\u1038\u1015\u103c\u102f\u101e\u100a\u103a\u104b.<\/p>\n<p>AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038\u101b\u103e\u102d \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1014\u102c\u1038\u101c\u100a\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a\u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u101e\u102c\u1019\u1000 \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038 \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038\u104a \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1000\u103c\u102e\u1038\u1019\u103c\u1004\u1037\u103a\u101e\u1031\u102c \u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u103e\u1031\u102c\u1004\u103a\u101b\u103e\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1014\u1005\u103a\u104f \u101e\u1000\u103a\u1010\u1019\u103a\u1038\u1000\u102d\u102f \u101e\u1031\u1001\u103b\u102c\u1005\u1031\u1001\u103c\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1014\u103e\u1004\u1037\u103a\u101c\u100a\u103a\u1038 \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u100a\u103a\u104b \u1024\u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u101e\u100a\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1015\u100a\u102c\u101b\u103e\u1004\u103a\u1010\u102d\u102f\u1004\u103a\u1038 \u1000\u103b\u103d\u1019\u103a\u1038\u1000\u103b\u1004\u103a\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1001\u103c\u1031\u1001\u1036\u1019\u103b\u102c\u1038\u104a \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u1031\u102c \u101a\u1014\u1039\u1010\u101b\u102c\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u101e\u100a\u103a\u104b.<\/p>\n<hr \/>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Failed-modular-contactor-showing-heat-damage-and-contact-welding-from-improper-AC-7a-rating-used-on-inductive-motor-load.webp\" alt=\"Failed modular contactor showing heat damage and contact welding from improper AC-7a rating used on inductive motor load\" \/><figcaption style=\"text-align: center; font-style: italic; color: #666; margin-top: 8px; font-size: 14px;\">\u1015\u102f\u1036 \u1041- inductive motor load \u1010\u103d\u1004\u103a AC-7a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1019\u103e\u102c\u1038\u101a\u103d\u1004\u103a\u1038\u1005\u103d\u102c\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1019\u103c\u1004\u103a\u101e\u102c\u101e\u1031\u102c \u1021\u1015\u1030\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a contact welding \u1000\u102d\u102f \u1015\u103c\u101e\u1011\u102c\u1038\u101e\u1031\u102c \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1014\u1031\u101e\u1031\u102c modular contactor\u104b.<\/figcaption><\/figure>\n<hr \/>\n<h2>AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038\u1000\u102c\u1038 \u1021\u1018\u101a\u103a\u1014\u100a\u103a\u1038\u104b<\/h2>\n<p>\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101c\u102c\u1038\u1010\u1030\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a IEC 61095 \u1019\u103e \u1005\u1036\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038\u101e\u100a\u103a contactor \u1019\u103b\u102c\u1038 \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101b\u1019\u100a\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101d\u1014\u103a\u101c\u1000\u1039\u1001\u100f\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a switching duty cycle \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u100a\u103a\u104b AC-1 \u1014\u103e\u1004\u1037\u103a AC-3 \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038 (\u1005\u1000\u103a\u1019\u103e\u102f contactor \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a IEC 60947-4-1 \u1010\u103d\u1004\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a) \u1014\u103e\u1004\u1037\u103a\u1019\u1010\u1030\u1018\u1032 AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b \u101e\u100a\u103a \u226463A \u101b\u103e\u102d\u101e\u1031\u102c \u101c\u1000\u103a\u101b\u103e\u102d\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\u1021\u1010\u1030 \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u1014\u103e\u1004\u1037\u103a \u1000\u102f\u1014\u103a\u101e\u103d\u101a\u103a\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u101e\u102f\u1036\u1038 \u1021\u101c\u1004\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u101e\u102f\u1036\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1011\u1030\u1038\u101b\u100a\u103a\u100a\u103d\u103e\u1014\u103a\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>AC-7a: \u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a Inductive Load \u1019\u103b\u102c\u1038<\/h3>\n<p>AC-7a contactor \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b <strong>resistive \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a inductive load \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a<\/strong> power factor \u22650.95 \u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030\u104b \u1024\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1015\u102b\u101d\u1004\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li>Resistive \u1021\u1015\u1030\u1015\u1031\u1038\u1012\u103c\u1015\u103a\u1005\u1004\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>Incandescent \u1014\u103e\u1004\u1037\u103a LED \u1019\u102e\u1038\u1021\u101c\u1004\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1016\u102d\u102f\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1001\u103b\u1000\u103a\u1015\u103c\u102f\u1010\u103a\u101e\u100a\u1037\u103a\u1021\u102d\u102f\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>\u101e\u1031\u1038\u1004\u101a\u103a\u101e\u1031\u102c \u1015\u102b\u101d\u102b\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038 (\u1010\u1030\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u101b\u1031\u102c\u1005\u1015\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038)<\/li>\n<li>\u101b\u102f\u1015\u103a\u1019\u103c\u1004\u103a\u101e\u1036\u1000\u103c\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1016\u103b\u1031\u102c\u103a\u1016\u103c\u1031\u101b\u1031\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p>\u1021\u1013\u102d\u1000\u101c\u1000\u1039\u1001\u100f\u102c- \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 inrush current (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a rated current \u104f 1.2-1.5 \u1006) \u1014\u103e\u1004\u1037\u103a switching \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1004\u103a\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1015\u103d\u102c\u1038\u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a\u101e\u102c \u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u104b.<\/p>\n<h3>AC-7b: \u1019\u1031\u102c\u103a\u1010\u102c\u1014\u103e\u1004\u1037\u103a \u101c\u100a\u103a\u1015\u1010\u103a\u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038 Load \u1019\u103b\u102c\u1038<\/h3>\n<p>AC-7b contactor \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u101e\u100a\u103a\u104b <strong>\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1019\u1031\u102c\u103a\u1010\u102c load \u1019\u103b\u102c\u1038<\/strong> \u101e\u102d\u101e\u102c\u1011\u1004\u103a\u101b\u103e\u102c\u1038\u101e\u1031\u102c inductive reactance \u1014\u103e\u1004\u1037\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c starting current \u1019\u103b\u102c\u1038 (rated current \u104f 5-8 \u1006) \u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030\u104b \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038-<\/p>\n<ul>\n<li>Single-phase induction motor \u1019\u103b\u102c\u1038<\/li>\n<li>\u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u1031\u101d\u1004\u103a\u101c\u1031\u1011\u103d\u1000\u103a\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1017\u101f\u102d\u102f\u1016\u102f\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1021\u101d\u1010\u103a\u101c\u103b\u103e\u1031\u102c\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1001\u103c\u1031\u102c\u1000\u103a\u1001\u1036\u1005\u1000\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u101b\u1031\u1001\u1032\u101e\u1031\u1010\u1039\u1010\u102c\u1000\u103d\u1014\u103a\u1015\u101b\u1000\u103a\u1006\u102c<\/li>\n<li>\u101b\u1031\u1000\u1030\u1038\u1000\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a HVAC \u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c\u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a- AC-7b contactor \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101b\u1019\u100a\u103a\u104b <strong>\u1015\u103c\u1004\u103a\u1038\u1011\u1014\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1016\u102d\u1021\u102c\u1038<\/strong> \u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c inrush current \u1019\u103b\u102c\u1038\u104a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a contact \u1001\u103d\u1032\u1011\u103d\u1000\u103a\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a \u1015\u103c\u1004\u103a\u1038\u1011\u1014\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1015\u103d\u102c\u1038\u1019\u103b\u102c\u1038 \u1015\u102b\u101d\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<hr \/>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Technical-cutaway-diagram-showing-internal-contact-structure-of-two-modular-contactors-AC-7A-AC-7B.webp\" alt=\"Technical cutaway diagram showing internal contact structure of two modular contactors AC-7A and AC-7B\" \/><figcaption style=\"text-align: center; font-style: italic; color: #666; margin-top: 8px; font-size: 14px;\">\u1015\u102f\u1036 \u1042- \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1016\u103c\u1010\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1001\u103b\u1000\u103a\u104b AC-7b (\u100a\u102c\u1018\u1000\u103a) \u1010\u103d\u1004\u103a \u1005\u1036 AC-7a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u1000 \u1021\u102c\u1038\u1016\u103c\u100a\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c AgSnO2 contact \u1019\u103b\u102c\u1038\u104a \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c arc chute \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u1036\u101c\u102d\u102f\u1000\u103a\u1019\u103e\u102f\u1010\u103a\u1011\u102f\u1010\u103a\u1000\u103d\u102d\u102f\u1004\u103a\u1019\u103b\u102c\u1038 \u1015\u102b\u101d\u1004\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u101e\u1010\u102d\u1015\u103c\u102f\u1015\u102b\u104b.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038- AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b<\/h2>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th style=\"text-align: left;\">\u1007\u102c\u1010\u102d<\/th>\n<th style=\"text-align: left;\">AC-7a (\u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a Inductive)<\/th>\n<th style=\"text-align: left;\">AC-7b (\u1019\u1031\u102c\u103a\u1010\u102c Load \u1019\u103b\u102c\u1038)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Power Factor<\/strong><\/td>\n<td>\u22650.95 (\u1014\u102e\u1038\u1015\u102b\u1038 resistive)<\/td>\n<td>0.45-0.85 (\u1021\u101c\u103d\u1014\u103a inductive)<\/td>\n<\/tr>\n<tr>\n<td><strong>Inrush \u101c\u1000\u103a\u101b\u103e\u102d<\/strong><\/td>\n<td>1.2-1.5\u00d7 rated current<\/td>\n<td>5-8\u00d7 rated current<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038<\/strong><\/td>\n<td>\u1005\u1036 (1.5\u00d7 Ie)<\/td>\n<td>\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038 (8-10\u00d7 Ie)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1031\u1006\u1038\u1031\u107e<\/strong><\/td>\n<td>Low arc energy<\/td>\n<td>High arc energy (\u1019\u1031\u102c\u103a\u1010\u102c back-EMF)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1006\u1000\u103a\u101e\u103d\u101a\u103a\u101b\u1014\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038<\/strong><\/td>\n<td>\u1005\u1036 \u1004\u103d\u1031\u101e\u1010\u1039\u1010\u102f\u1005\u1015\u103a<\/td>\n<td>AgSnO2 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a AgCdO (arc-resistant)<\/td>\n<\/tr>\n<tr>\n<td><strong>Arc \u1016\u102d\u1014\u103e\u102d\u1015\u103a\u1019\u103e\u102f<\/strong><\/td>\n<td>\u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/td>\n<td>\u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c arc chute \u1019\u103b\u102c\u1038 + \u101e\u1036\u101c\u102d\u102f\u1000\u103a\u1019\u103e\u102f\u1010\u103a\u1011\u102f\u1010\u103a<\/td>\n<\/tr>\n<tr>\n<td><strong>\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1018\u101d<\/strong><\/td>\n<td>\u1041\u1040\u1040,\u1040\u1040\u1040-\u1045\u1040\u1040,\u1040\u1040\u1040 \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f<\/td>\n<td>50,000-100,000 \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c\u1018\u101d<\/strong><\/td>\n<td>\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f \u1041-\u1041\u1040 \u101e\u1014\u103a\u1038<\/td>\n<td>1-5 \u101e\u1014\u103a\u1038 \u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u101c\u1000\u103a\u101b\u103e\u102d \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1019\u103e\u102f<\/strong><\/td>\n<td>63A \u1021\u1011\u102d<\/td>\n<td>25-32A \u101e\u102d\u102f\u1037 \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1011\u102c\u1038\u101e\u100a\u103a (\u1010\u1030\u100a\u102e\u101e\u1031\u102c frame size)<\/td>\n<\/tr>\n<tr>\n<td><strong>Coil Hold-In Power<\/strong><\/td>\n<td>\u1005\u1036<\/td>\n<td>\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u100a\u103a (\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u103b\u1006\u1004\u103a\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1004\u103a\u1038 \u1015\u103c\u102f\u1010\u103a\u1000\u103b\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1014\u103a)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1005\u1036\u1001\u103b\u102d\u1014\u103a\u1005\u1036\u100a\u103d\u103e\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1001\u103c\u1004\u103a\u1038\u104b<\/strong><\/td>\n<td>IEC 61095 \u1007\u101a\u102c\u1038 \u1046<\/td>\n<td>IEC 61095 \u1007\u101a\u102c\u1038 \u1047<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Key Insight:<\/strong> 25A \u1010\u103d\u1004\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c AC-7b contactor \u101e\u100a\u103a 63A AC-7a contactor \u101c\u102d\u102f\u1021\u1015\u103a\u1019\u100a\u1037\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c\u1019\u1031\u102c\u103a\u1010\u102c load \u1000\u102d\u102f \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u2014\u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a AC-7b \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u101e\u102c \u1005\u1010\u1004\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b.<\/p>\n<hr \/>\n<h2>\u1019\u1031\u102c\u103a\u1010\u102c Load \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a AC-7a Contactor \u1019\u103b\u102c\u1038 \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u101b\u101e\u100a\u1037\u103a \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1004\u103a\u1038<\/h2>\n<h3>1. Inrush Current \u1019\u103e Contact Welding<\/h3>\n<p>\u1019\u1031\u102c\u103a\u1010\u102c\u1010\u1005\u103a\u1001\u102f\u1005\u1010\u1004\u103a\u101e\u1031\u102c\u1021\u1001\u102b inrush current (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 100-300ms \u1021\u1010\u103d\u1000\u103a rated current \u104f 6-8 \u1006) \u101e\u100a\u103a contact spring \u1016\u102d\u1021\u102c\u1038\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c contact \u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038 \u101e\u1036\u101c\u102d\u102f\u1000\u103a\u1021\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u1015\u1031\u102b\u1037\u1015\u102b\u1038\u101e\u1031\u102c spring \u1010\u1004\u103a\u1038\u1021\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c AC-7a contactor \u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1024\u1021\u101b\u102c\u101e\u100a\u103a \u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u100a\u103a-<\/p>\n<ul>\n<li><strong>Contact \u1001\u102f\u1014\u103a\u1001\u103c\u1004\u103a\u1038<\/strong> \u1015\u102d\u1010\u103a\u1001\u103b\u102d\u1014\u103a\u1021\u1010\u103d\u1004\u103a\u1038 arc strike \u1021\u1019\u103b\u102c\u1038\u1021\u1015\u103c\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1001\u103c\u1004\u103a\u1038<\/li>\n<li><strong>Micro-welding<\/strong> \u1011\u1015\u103a\u1001\u102b\u1011\u1015\u103a\u1001\u102b arc \u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u103e contact \u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a<\/li>\n<li><strong>\u1010\u102d\u102f\u1038\u1010\u1000\u103a\u1006\u102f\u1010\u103a\u101a\u102f\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/strong> contact \u1019\u103b\u102c\u1038 \u1021\u1015\u103c\u102e\u1038\u1021\u1015\u102d\u102f\u1004\u103a \u1015\u102d\u1010\u103a\u101e\u100a\u103a\u1021\u1011\u102d<\/li>\n<\/ul>\n<p><strong>\u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u1019\u1039\u1018\u102c\u1025\u1015\u1019\u102c-<\/strong> 1.5kW (7A) \u101b\u1031\u1000\u1030\u1038\u1000\u1014\u103a\u1005\u102f\u1015\u103a\u1005\u1000\u103a\u1019\u1031\u102c\u103a\u1010\u102c\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u1037\u103a 16A AC-7a contactor \u101e\u100a\u103a 56A inrush current \u1000\u102d\u102f \u1001\u1036\u1005\u102c\u1038\u101b\u101e\u100a\u103a\u104b \u1021\u1019\u103b\u102c\u1038\u1006\u102f\u1036\u1038\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 24A (1.5\u00d7 16A) \u1021\u1010\u103d\u1000\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c contact \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u103b\u1000\u103a\u1001\u103b\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b \u1005\u1010\u1004\u103a\u1015\u103c\u102e\u1038 50-100 \u1000\u103c\u102d\u1019\u103a\u1021\u1000\u103c\u102c\u1010\u103d\u1004\u103a contact \u1019\u103b\u102c\u1038 \u1015\u102d\u1010\u103a\u101e\u103d\u102c\u1038\u1015\u103c\u102e\u1038 \u1019\u1031\u102c\u103a\u1010\u102c\u1000\u102d\u102f \u1021\u1006\u1000\u103a\u1019\u1015\u103c\u1010\u103a\u101c\u100a\u103a\u1015\u1010\u103a\u1005\u1031\u1000\u102c \u1014\u1031\u102c\u1000\u103a\u1006\u102f\u1036\u1038\u1010\u103d\u1004\u103a \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1005\u1031\u101e\u100a\u103a\u104b.<\/p>\n<h3>2. Arc Extinction \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1019\u1031\u102c\u103a\u1010\u102c load \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1010\u1004\u103a\u1015\u103c\u101e\u100a\u103a\u104b <strong>\u1014\u1031\u102c\u1000\u103a\u1000\u103b\u1015\u102b\u101d\u102b\u1016\u1000\u103a\u1010\u102c<\/strong> (\u1040.\u1044\u1045-\u1040.\u1048\u1045) \u1006\u102d\u102f\u101e\u100a\u103a\u1019\u103e\u102c \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\u1010\u102d\u102f\u1037 \u1021\u1006\u1004\u1037\u103a\u1019\u100a\u102e\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1006\u102d\u102f\u101c\u102d\u102f\u101e\u100a\u103a\u104b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1016\u103d\u1004\u1037\u103a\u101e\u1031\u102c\u1021\u1001\u102b<\/p>\n<ul>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c\u1021\u1004\u103a\u1012\u1000\u103a\u1010\u1004\u1037\u103a (back-EMF) \u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1006\u1000\u103a\u101c\u1000\u103a\u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1014\u1031\u101e\u100a\u103a\u104b<\/li>\n<li>\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1001\u102d\u102f\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u101e\u100a\u103a \u1015\u1031\u1038\u101e\u103d\u1004\u103a\u1038\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u104f \u1042-\u1043 \u1006\u1021\u1011\u102d \u101b\u1031\u102c\u1000\u103a\u101b\u103e\u102d\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b<\/li>\n<li>AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1001\u102d\u102f\u1038\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u100a\u1037\u103a \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101e\u1036\u101c\u102d\u102f\u1000\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1019\u103e\u102f\u1010\u103a\u1011\u102f\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1019\u101b\u103e\u102d\u1015\u102b\u104b<\/li>\n<li>\u1000\u103c\u102c\u101b\u103e\u100a\u103a\u1005\u103d\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1001\u102d\u102f\u1038\u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1005\u1031\u1015\u103c\u102e\u1038 \u101c\u103b\u103e\u1015\u103a\u1000\u102c\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102c\u1017\u103d\u1014\u103a\u1021\u1016\u103c\u1005\u103a \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1005\u1031\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n<h3>3. \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c I\u00b2t \u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u101e\u100a\u103a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u104e\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u104f \u1021\u1015\u1030\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u104d \u1021\u1015\u1030\u1015\u1031\u1038\u101e\u100a\u103a\u104b AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u1019\u103b\u102c\u1038\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1000\u103c\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1015\u102b\u1038\u101c\u103d\u103e\u102c\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1015\u1005\u1039\u1005\u100a\u103a\u1038 (AC-7b \u1010\u103d\u1004\u103a \u1041.\u1045-\u1042 \u1019\u102e\u101c\u102e\u1019\u102e\u1010\u102c\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u1000 \u1040.\u1045-\u1041 \u1019\u102e\u101c\u102e\u1019\u102e\u1010\u102c)<\/li>\n<li>\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1015\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101e\u1031\u1038\u1004\u101a\u103a\u101e\u100a\u1037\u103a \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>\u1021\u1021\u1031\u1038\u1001\u1036\u1005\u1014\u1005\u103a \u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1019\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u102e \u1010\u102c\u1019\u102e\u1014\u101a\u103a\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p>\u101b\u101c\u1012\u103a- \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1001\u102f\u1001\u1036\u1019\u103e\u102f \u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u101c\u102c\u1015\u103c\u102e\u1038 \u1021\u1015\u1030\u1015\u1031\u1038\u1001\u103c\u1004\u103a\u1038 \u2192 \u1021\u1031\u102c\u1000\u103a\u1006\u102e\u1002\u103b\u1004\u103a\u1014\u103e\u1004\u1037\u103a \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1001\u103c\u1004\u103a\u1038 \u2192 \u1001\u102f\u1001\u1036\u1019\u103e\u102f\u1015\u102d\u102f\u1019\u102d\u102f\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 \u2192 \u1021\u1015\u1030\u1015\u1031\u1038\u1019\u103e\u102f\u1015\u102d\u102f\u1019\u102d\u102f\u1019\u103b\u102c\u1038\u1015\u103c\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u101f\u1030\u101e\u1031\u102c \u1021\u1015\u103c\u102f\u101e\u1018\u1031\u102c\u1006\u1031\u102c\u1004\u103a\u101e\u1031\u102c \u1010\u102f\u1036\u1037\u1015\u103c\u1014\u103a\u1019\u103e\u102f\u1000\u103d\u1004\u103a\u1038\u1006\u1000\u103a\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n<hr \/>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Electrical-schematic-diagram-showing-motor-starting-current-waveform-comparison-AC-7A-AC-7B.webp\" alt=\"Electrical schematic diagram showing motor starting current waveform comparison AC-7a vs AC-7b\" \/><figcaption style=\"text-align: center; font-style: italic; color: #666; margin-top: 8px; font-size: 14px;\">\u1015\u102f\u1036 \u1043- \u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u102f\u1036\u101e\u100f\u1039\u100d\u102c\u1014\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1001\u103b\u1000\u103a\u104b AC-7a (\u1021\u1015\u1031\u102b\u103a\u1015\u102d\u102f\u1004\u103a\u1038) \u101e\u100a\u103a \u1021\u1019\u103c\u1004\u1037\u103a\u1006\u102f\u1036\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u1021\u1010\u103d\u1004\u103a\u1038 \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u1037\u103a \u1027\u101b\u102d\u101a\u102c\u1011\u1032\u101e\u102d\u102f\u1037 \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1015\u103c\u102e\u1038 AC-7b (\u1021\u1031\u102c\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038) \u101e\u100a\u103a \u1021\u1005\u102d\u1019\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101e\u100a\u1037\u103a \u1027\u101b\u102d\u101a\u102c\u1021\u1010\u103d\u1004\u103a\u1038 \u101c\u102f\u1036\u1001\u103c\u102f\u1036\u1005\u103d\u102c\u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c Contactor \u1000\u102d\u102f\u1018\u101a\u103a\u101c\u102d\u102f\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u101c\u1032\u104b<\/h2>\n<h3>\u1021\u1006\u1004\u1037\u103a \u1041- \u101d\u1014\u103a\u104f \u101c\u1000\u1039\u1001\u100f\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1031\u102c\u103a\u1011\u102f\u1010\u103a\u1015\u102b<\/h3>\n<p><strong>AC-7a \u1000\u102d\u102f \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b-<\/strong><\/p>\n<ul>\n<li>\u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u1021\u1015\u1030\u1015\u1031\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038 (\u1015\u102b\u101d\u102b\u1016\u1000\u103a\u1010\u102c &gt;\u1040.\u1049\u1045)<\/li>\n<li>\u1019\u102e\u1038\u1001\u103b\u1031\u102c\u1004\u103a\u1038\u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038 (LED\u104a PFC \u1015\u102b\u101e\u1031\u102c \u1016\u101c\u102d\u102f\u101b\u1004\u103a\u1038\u1005\u1000\u103a)<\/li>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c\u1019\u101f\u102f\u1010\u103a\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1021\u1006\u1031\u102c\u1004\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>\u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 \u1005\u1010\u1004\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1021\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p><strong>AC-7b \u1000\u102d\u102f \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b-<\/strong><\/p>\n<ul>\n<li>\u1019\u100a\u103a\u101e\u100a\u1037\u103a \u1010\u1005\u103a\u101c\u102f\u1036\u1038\u1001\u1036\u1019\u1031\u102c\u103a\u1010\u102c (\u1015\u1014\u103a\u1000\u102c\u1019\u103b\u102c\u1038\u104a \u1005\u102f\u1015\u103a\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1016\u102d\u1021\u102c\u1038\u1015\u1031\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038)<\/li>\n<li>\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u101e\u102f\u1036\u1038\u101e\u1031\u102c \u101e\u102f\u1036\u1038\u101c\u102f\u1036\u1038\u1001\u1036\u1019\u1031\u102c\u103a\u1010\u102c \u2264\u1042.\u1042\u1000\u102e\u101c\u102d\u102f\u101d\u1015\u103a<\/li>\n<li>\u1005\u1010\u1004\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u100a\u103a \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1011\u1000\u103a \u1043 \u1006\u1000\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038<\/li>\n<li>\u1019\u1000\u103c\u102c\u1001\u100f \u1005\u1010\u1004\u103a\/\u101b\u1015\u103a\u1010\u1014\u1037\u103a\u1005\u1000\u103a\u101d\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<h3>\u1021\u1006\u1004\u1037\u103a \u1042- \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1015\u102b<\/h3>\n<p><strong>AC-7a \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a-<\/strong><\/p>\n<div style=\"background-color: #f9f9f9; padding: 10px; border-left: 4px solid #333; margin: 10px 0;\">\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a (Ie) \u2265 \u101d\u1014\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u00d7 \u1041.\u1042\u1045 (\u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u1019\u103e\u102f\u1021\u1014\u102c\u1038\u101e\u1010\u103a)<\/div>\n<p><strong>AC-7b \u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a-<\/strong><\/p>\n<div style=\"background-color: #f9f9f9; padding: 10px; border-left: 4px solid #333; margin: 10px 0;\">\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a (Ie) \u2265 \u1019\u1031\u102c\u103a\u1010\u102c \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d \u101d\u1014\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u00d7 \u1041.\u1042\u1045<\/div>\n<p><strong>\u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b-<\/strong> \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u2265 \u1019\u1031\u102c\u103a\u1010\u102c \u101c\u1031\u102c\u1037\u1001\u103a\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c \u101b\u102d\u102f\u1010\u102c\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a FLA \u104f \u1046-\u1048 \u1006)<\/p>\n<p><strong>\u1014\u1019\u1030\u1014\u102c\u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f:<\/strong><\/p>\n<ul>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c- \u1041.\u1041\u1000\u102e\u101c\u102d\u102f\u101d\u1015\u103a\u104a \u1042\u1043\u1040\u1017\u102d\u102f\u1037\u104a \u1010\u1005\u103a\u101c\u102f\u1036\u1038\u1001\u1036<\/li>\n<li>\u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d \u101d\u1014\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038- \u1045.\u1045\u1021\u1019\u103a\u1015\u102e\u101a\u102c<\/li>\n<li>\u101c\u1031\u102c\u1037\u1001\u103a\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c \u101b\u102d\u102f\u1010\u102c\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038- \u1043\u1043\u1021\u1019\u103a\u1015\u102e\u101a\u102c (FLA \u104f \u1046 \u1006)<\/li>\n<li>\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a- \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u2265\u1047\u1021\u1019\u103a\u1015\u102e\u101a\u102c (\u1045.\u1045 \u00d7 \u1041.\u1042\u1045) \u101b\u103e\u102d\u101e\u1031\u102c AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c<\/li>\n<li>\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b- \u1043\u1043\u1021\u1019\u103a\u1015\u102e\u101a\u102c \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1014\u102d\u102f\u1004\u103a\u101b\u1019\u100a\u103a<\/li>\n<\/ul>\n<p>\u1041\u1046\u1021\u1019\u103a\u1015\u102e\u101a\u102c AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c (\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 ~\u1041\u1042\u1048\u1021\u1019\u103a\u1015\u102e\u101a\u102c) \u101e\u100a\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u100a\u103a\u104b \u1041\u1046\u1021\u1019\u103a\u1015\u102e\u101a\u102c AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c (\u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 ~\u1042\u1044\u1021\u1019\u103a\u1015\u102e\u101a\u102c) \u101e\u100a\u103a \u1001\u103b\u1000\u103a\u1001\u103b\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u101c\u102d\u1019\u1037\u103a\u1019\u100a\u103a\u104b.<\/p>\n<h3>\u1021\u1006\u1004\u1037\u103a \u1043- \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1001\u103b\u1000\u103a\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<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th style=\"text-align: left;\">\u1021\u1001\u103b\u1000\u103a<\/th>\n<th style=\"text-align: left;\">Impact on Selection<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u1010\u102c\u101d\u1014\u103a\u1005\u1000\u103a\u101d\u1014\u103a\u1038<\/strong><\/td>\n<td>\u1010\u1005\u103a\u1014\u102c\u101b\u102e\u101c\u103b\u103e\u1004\u103a \u1005\u1010\u1004\u103a\u1019\u103e\u102f &gt;\u1041\u1040 \u1000\u103c\u102d\u1019\u103a\u101e\u100a\u103a \u201c\u1015\u1031\u102b\u1037\u1015\u102b\u1038\u101e\u1031\u102c\u201d \u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u1015\u1004\u103a AC-7b \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a \u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a<\/strong><\/td>\n<td>&gt;\u1044\u1040\u00b0C \u101e\u100a\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1041\u1040\u00b0C \u101c\u103b\u103e\u1004\u103a \u1040.\u1049 \u1006)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1021\u1019\u103c\u1004\u1037\u103a<\/strong><\/td>\n<td>&gt;\u1042\u1040\u1040\u1040\u1019\u102e\u1010\u102c\u101e\u100a\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a (\u1041\u1040\u1040\u1040\u1019\u102e\u1010\u102c\u101c\u103b\u103e\u1004\u103a \u1040.\u1049\u1045 \u1006)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1000\u103d\u102d\u102f\u1004\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038<\/strong><\/td>\n<td>\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1006\u102c\u1038\u1000\u1005\u103a\u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1000\u102d\u102f \u1001\u103b\u102d\u1014\u103a\u100a\u103e\u102d\u1015\u102b\u104b \u1006\u1030\u100a\u1036\u101e\u1036\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a DC \u1000\u103d\u102d\u102f\u1004\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1021\u101b\u1014\u103a\u1021\u1006\u1000\u103a\u1021\u101e\u103d\u101a\u103a\u1019\u103b\u102c\u1038<\/strong><\/td>\n<td>\u1021\u1015\u103c\u1014\u103a\u1021\u101c\u103e\u1014\u103a\u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101c\u102f\u1036\u101c\u1031\u102c\u1000\u103a\u101e\u1031\u102c NO\/NC \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038 \u101b\u103e\u102d\u1005\u1031\u101b\u1014\u103a \u101e\u1031\u1001\u103b\u102c\u1015\u102b\u1005\u1031<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/test.viox.com\/my\/how-to-choose-modular-contactor-ac-dc\/\">\u1019\u1031\u102c\u103a\u1002\u103b\u1030\u101c\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u102d\u102f\u1019\u102d\u102f\u101c\u1031\u1037\u101c\u102c\u1015\u102b<\/a><\/p>\n<hr \/>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/VIOX-Modular-Contactor-in-Panel-board.webp\" alt=\"VIOX modular contactors installed in panel board\" \/><figcaption style=\"text-align: center; font-style: italic; color: #666; margin-top: 8px; font-size: 14px;\">\u1015\u102f\u1036 \u1044- \u1001\u1031\u1010\u103a\u1019\u102e\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a \u1016\u103c\u1014\u1037\u103a\u1016\u103c\u1030\u1038\u101b\u1031\u1038\u1018\u1031\u102c\u1004\u103a\u1010\u103d\u1004\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1005\u103d\u102c \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c VIOX \u1019\u1031\u102c\u103a\u1002\u103b\u1030\u101c\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u104b.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u1021\u1016\u103c\u1005\u103a\u1019\u103b\u102c\u1038\u101e\u1031\u102c \u1021\u1019\u103e\u102c\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101b\u103e\u1031\u102c\u1004\u103a\u101b\u103e\u102c\u1038\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038<\/h2>\n<h3>\u1021\u1019\u103e\u102c\u1038 \u1041TP\u1045T\u1041- \u201c\u1021\u1019\u103a\u1015\u102e\u101a\u102c\u1015\u102d\u102f\u1019\u103c\u1004\u1037\u103a\u101c\u1031 \u1015\u102d\u102f\u1000\u1031\u102c\u1004\u103a\u1038\u101c\u1031\u201d \u101f\u102f \u101a\u1030\u1006\u1001\u103c\u1004\u103a\u1038\u201d<\/h3>\n<p><strong>\u1019\u103e\u102c\u1038:<\/strong> \u201c\u1000\u103b\u103d\u1014\u103a\u1010\u1031\u102c\u103a \u1041\u1040\u1021\u1019\u103a\u1015\u102e\u101a\u102c \u1019\u1031\u102c\u103a\u1010\u102c\u1021\u1010\u103d\u1000\u103a \u1046\u1043\u1021\u1019\u103a\u1015\u102e\u101a\u102c AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1000\u102d\u102f \u101e\u102f\u1036\u1038\u1015\u102b\u1019\u101a\u103a\u104b \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a\u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101c\u1031 \u1015\u102d\u102f\u101c\u102f\u1036\u1001\u103c\u102f\u1036\u101c\u1031\u1015\u1032\u104b\u201d<\/p>\n<p><strong>\u1019\u103e\u1014\u103a:<\/strong> \u1042\u1045\u1021\u1019\u103a\u1015\u102e\u101a\u102c AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u101e\u100a\u103a \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b AC-7a \u1010\u103d\u1004\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1001\u102d\u102f\u1038\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1019\u101b\u103e\u102d\u1015\u102b\u104b.<\/p>\n<h3>\u1021\u1019\u103e\u102c\u1038 \u1041TP\u1045T\u1042- \u101b\u1031\u102c\u1014\u103e\u1031\u102c\u1011\u102c\u1038\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u101c\u103b\u1005\u103a\u101c\u103b\u1030\u101b\u103e\u102f\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>\u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101e\u1031\u102c\u1021\u1001\u102b <strong>\u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038 \u1014\u103e\u1005\u103a\u1019\u103b\u102d\u102f\u1038\u101c\u102f\u1036\u1038\u1000\u102d\u102f<\/strong> \u1010\u1030\u100a\u102e\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a (\u1025\u1015\u1019\u102c- \u1021\u1015\u1030\u1015\u1031\u1038\u1005\u1000\u103a + \u1015\u1014\u103a\u1000\u102c)\u104a \u1021\u1019\u103c\u1032\u1010\u1019\u103a\u1038 AC-7b \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b \u1021\u1004\u103a\u1012\u1000\u103a\u1010\u1004\u1037\u103a\u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f\u101e\u100a\u103a \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1016\u103c\u1005\u103a\u1015\u1031\u102b\u103a\u1005\u1031\u101e\u1031\u102c \u1021\u1013\u102d\u1000\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101b\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1025\u1015\u1019\u102c:<\/strong> \u1042\u1000\u102e\u101c\u102d\u102f\u101d\u1015\u103a \u1021\u1015\u1030\u1015\u1031\u1038\u1012\u103c\u1015\u103a\u1005\u1004\u103a (\u1048.\u1047\u1021\u1019\u103a\u1015\u102e\u101a\u102c) \u1014\u103e\u1004\u1037\u103a \u1045\u1040\u101d\u1015\u103a \u1015\u1014\u103a\u1000\u102c\u1019\u1031\u102c\u103a\u1010\u102c (\u1040.\u1042\u1021\u1019\u103a\u1015\u102e\u101a\u102c) \u1015\u102b\u101e\u1031\u102c \u101b\u1031\u1001\u103b\u102d\u102f\u1038\u1001\u1014\u103a\u1038\u1021\u1015\u1030\u1015\u1031\u1038\u1005\u1000\u103a\u104b \u1005\u102f\u1005\u102f\u1015\u1031\u102b\u1004\u103a\u1038\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038- \u1048.\u1049\u1021\u1019\u103a\u1015\u102e\u101a\u102c\u104b.<\/p>\n<ul>\n<li><strong>\u1019\u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c:<\/strong> \u1041\u1046\u1021\u1019\u103a\u1015\u102e\u101a\u102c AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c (\u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a)<\/li>\n<li><strong>\u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c:<\/strong> \u1041\u1046\u1021\u1019\u103a\u1015\u102e\u101a\u102c AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c (\u1019\u1031\u102c\u103a\u1010\u102c\u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1011\u102c\u1038\u101e\u100a\u103a)<\/li>\n<\/ul>\n<h3>\u1021\u1019\u103e\u102c\u1038 \u1041TP\u1045T\u1043- \u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u101c\u103b\u1005\u103a\u101c\u103b\u1030\u101b\u103e\u102f\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a- <strong>\u1010\u1005\u103a\u1001\u102b\u1010\u1005\u103a\u101b\u1036 \u1005\u1010\u1004\u103a\u1001\u103c\u1004\u103a\u1038<\/strong> (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1010\u1005\u103a\u1019\u102d\u1014\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u1005\u1010\u1004\u103a\u1019\u103e\u102f &lt;\u1045 \u1000\u103c\u102d\u1019\u103a)\u104b \u1019\u1000\u103c\u102c\u1001\u100f \u1021\u1016\u103d\u1004\u1037\u103a\/\u1021\u1015\u102d\u1010\u103a \u1005\u1000\u103a\u101d\u1014\u103a\u1038\u1019\u103b\u102c\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038 (\u1025\u1015\u1019\u102c- \u1016\u102d\u1021\u102c\u1038\u1015\u1031\u1038\u1005\u1000\u103a \u1021\u1010\u102d\u102f\u1001\u103b\u102f\u1036\u1038\u1005\u1000\u103a\u101d\u1014\u103a\u1038) \u101e\u100a\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101e\u1000\u103a\u1010\u1019\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c<\/li>\n<li>\u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1016\u103c\u100a\u103a\u1038\u100a\u103e\u1004\u103a\u1038\u1005\u103d\u102c\u1005\u1010\u1004\u103a\u101e\u100a\u1037\u103a \u1006\u102c\u1038\u1000\u1005\u103a\u1019\u103b\u102c\u1038<\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/prevent-pump-short-cycling-time-delay-relay-guide\/\">\u101c\u103b\u1004\u103a\u1019\u103c\u1014\u103a\u1005\u103d\u102c \u1005\u1000\u103a\u101d\u1014\u103a\u1038\u101c\u100a\u103a\u1015\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u1001\u103b\u102d\u1014\u103a\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1014\u103e\u1031\u1038\u101e\u100a\u1037\u103a \u101b\u102e\u101c\u1031\u1038\u1019\u103b\u102c\u1038<\/a><\/li>\n<\/ul>\n<hr \/>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/modular-contactor-selection-flowchart.webp\" alt=\"Modular contactor selection flowchart for AC-7a and AC-7b loads\" \/><figcaption style=\"text-align: center; font-style: italic; color: #666; margin-top: 8px; font-size: 14px;\">\u1015\u102f\u1036 \u1045- \u1019\u1031\u102c\u103a\u1002\u103b\u1030\u101c\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u1005\u102e\u1038\u1006\u1004\u103a\u1038\u1015\u102f\u1036\u1007\u101a\u102c\u1038\u104b \u1019\u103e\u1014\u103a\u1000\u1014\u103a\u101e\u1031\u102c \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1021\u1010\u103d\u1000\u103a \u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101b\u103e\u102d\u101e\u1031\u102c (AC-7a) \u1014\u103e\u1004\u1037\u103a \u1021\u1004\u103a\u1012\u1000\u103a\u1010\u1004\u1037\u103a\u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u101e\u1031\u102c (AC-7b) \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u102c\u1038 \u1001\u103d\u1032\u1001\u103c\u102c\u1038\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1024\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1001\u103b\u1000\u103a\u101e\u1005\u103a\u1015\u1004\u103a\u1000\u102d\u102f \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1015\u102b\u104b.<\/figcaption><\/figure>\n<hr \/>\n<h2>AC-7a \u1019\u103e AC-7b \u101e\u102d\u102f\u1037 \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1001\u103c\u1004\u103a\u1038- \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u103b\u101e\u1031\u102c \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1005\u1009\u103a\u1038\u1005\u102c\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/h2>\n<h3>\u101b\u102f\u1015\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101c\u102d\u102f\u1000\u103a\u1016\u1000\u103a\u100a\u102e\u1019\u103e\u102f<\/h3>\n<p>Modular contactor \u1021\u1019\u103b\u102c\u1038\u1005\u102f\u101e\u100a\u103a AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b \u1014\u103e\u1005\u103a\u1019\u103b\u102d\u102f\u1038\u101c\u102f\u1036\u1038\u1000\u102d\u102f DIN rail footprint \u1010\u1030\u100a\u102e\u1005\u103d\u102c\u1016\u103c\u1004\u1037\u103a \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u1011\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th style=\"text-align: left;\">Frame Size<\/th>\n<th style=\"text-align: left;\">AC-7a Rating<\/th>\n<th style=\"text-align: left;\">AC-7b Rating<\/th>\n<th style=\"text-align: left;\">DIN Modules<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u101e\u1031\u1038\u1004\u101a\u103a<\/td>\n<td>25A<\/td>\n<td>16A<\/td>\n<td>\u1019\u1031\u102c\u103a\u1002\u103b\u1030\u1038 \u1042 \u1001\u102f<\/td>\n<\/tr>\n<tr>\n<td>\u101c\u1010\u103a<\/td>\n<td>40A<\/td>\n<td>25A<\/td>\n<td>3 modules<\/td>\n<\/tr>\n<tr>\n<td>\u1000\u103c\u102e\u1038\u1019\u102c\u1038\u101e\u100a\u103a\u104b<\/td>\n<td>63A<\/td>\n<td>32A<\/td>\n<td>4 modules<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Retrofit \u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1001\u103b\u1000\u103a-<\/strong> AC-7a contactor \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u101e\u103d\u102c\u1038\u1015\u102b\u1000 \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101e\u100a\u1037\u103a AC-7b \u101e\u100a\u103a \u1010\u1015\u103a\u1006\u1004\u103a\u101b\u1014\u103a\u1014\u1031\u101b\u102c \u1010\u1030\u100a\u102e\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c current \u1021\u1010\u103d\u1000\u103a terminal wire \u1021\u101b\u103d\u101a\u103a\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u1001\u103c\u1004\u103a\u1038\u104b<\/h3>\n<p>AC-7b contactor \u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u1014\u1037\u103a\u1019\u103e\u1014\u103a\u1038\u1001\u103c\u1031\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a <strong>20-40% \u1015\u102d\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a\u104b<\/strong> \u1021\u101c\u102c\u1038\u1010\u1030 AC-7a \u1019\u1031\u102c\u103a\u1012\u101a\u103a\u1019\u103b\u102c\u1038\u1011\u1000\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1008\u1031\u1038\u1015\u102d\u102f\u1019\u103b\u102c\u1038\u1015\u102b\u101e\u100a\u103a\u104b<\/p>\n<ul>\n<li>\u1015\u102d\u102f\u1019\u102d\u102f\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c contact materials (AgSnO2 vs. standard silver)<\/li>\n<li>\u1021\u102c\u1038\u1016\u103c\u100a\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c arc suppression \u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103b\u102c\u1038<\/li>\n<li>\u1021\u101b\u100a\u103a\u1021\u101e\u103d\u1031\u1038\u1019\u103c\u1004\u1037\u103a \u1000\u103d\u102d\u102f\u1004\u103a\u101c\u103b\u103e\u1015\u103a\u1000\u102c<\/li>\n<li>\u1010\u102d\u102f\u1038\u1001\u103b\u1032\u1037\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u101e\u102d\u1021\u1019\u103e\u1010\u103a\u1015\u103c\u102f\u101c\u1000\u103a\u1019\u103e\u1010\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/li>\n<\/ul>\n<p><strong>ROI \u1010\u103d\u1000\u103a\u1001\u103b\u1000\u103a\u1019\u103e\u102f-<\/strong> \u1015\u1011\u1019\u1006\u102f\u1036\u1038 \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u103c\u102e\u1038\u1015\u102b\u1000 \u1008\u1031\u1038\u1015\u102d\u102f\u1015\u1031\u1038\u101b\u1000\u103b\u102d\u102f\u1038\u1014\u1015\u103a\u1015\u102b\u101e\u100a\u103a\u104b Contactor \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1001\u1031\u102b\u103a\u101a\u1030\u1019\u103e\u102f\u1010\u1005\u103a\u1001\u102f\u101e\u100a\u103a \u101c\u102f\u1015\u103a\u1021\u102c\u1038\u1001\u1021\u1010\u103d\u1000\u103a \u1041\u1045\u1040-\u1043\u1040\u1040 \u1012\u1031\u102b\u103a\u101c\u102c\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038 \u1000\u102f\u1014\u103a\u1000\u103b\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n<h3>Wiring \u1014\u103e\u1004\u1037\u103a Control \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b contactor \u1014\u103e\u1005\u103a\u1019\u103b\u102d\u102f\u1038\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c control interfaces \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u100a\u103a-<\/p>\n<ul>\n<li>Standard coil voltages: 24V, 110V, 230V AC\/DC<\/li>\n<li>Auxiliary contact configurations: 2NO, 2NC, 2NO+2NC<\/li>\n<li>\u1014\u103e\u1004\u1037\u103a \u101c\u102d\u102f\u1000\u103a\u1016\u1000\u103a\u100a\u102e\u101e\u100a\u103a <a href=\"https:\/\/test.viox.com\/my\/2-wire-vs-3-wire-control-motor-safety-guide\/\">2-wire \u1014\u103e\u1004\u1037\u103a 3-wire control circuits<\/a><\/li>\n<li>IEC 60715 \u1021\u101b DIN rail \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038<\/li>\n<\/ul>\n<h2>\u1021\u1006\u1004\u1037\u103a\u1019\u103c\u1004\u1037\u103a\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u101b\u102c\u1019\u103b\u102c\u1038- \u1021\u1001\u103c\u1031\u1001\u1036\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1001\u103c\u1004\u103a\u1038<\/h2>\n<h3>Overload Protection \u1014\u103e\u1004\u1037\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038<\/h3>\n<p>AC-7b contactor \u1019\u103b\u102c\u1038\u101e\u100a\u103a thermal overload relays \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a motor protection circuit breakers \u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101b\u1019\u100a\u103a\u104b Contactor \u104f <strong>making capacity<\/strong> \u101e\u100a\u103a overload relay \u104f <strong>tripping threshold<\/strong> \u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u101b\u1019\u100a\u103a\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u1005\u1010\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a nuisance trips \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1014\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b.<\/p>\n<p><strong>\u1021\u1000\u103c\u1036\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f-<\/strong><\/p>\n<ul>\n<li>Contactor making capacity \u2265 10\u00d7 motor FLA<\/li>\n<li>Overload relay trip class: 10A \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 20A per <a href=\"https:\/\/test.viox.com\/my\/iec-61095-vs-iec-60947-4-1-household-industrial-contactors\/\">IEC 60947-4-1<\/a><\/li>\n<li>Short-circuit protection: IEC 60947-4-1 \u1021\u101b Type 2 \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f<\/li>\n<\/ul>\n<h3>Inductive Loads \u1021\u1010\u103d\u1000\u103a Coil Suppression<\/h3>\n<p>\u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101e\u1031\u102c\u1021\u1001\u102b contactor coil \u101e\u100a\u103a inductive load \u1016\u103c\u1005\u103a\u101c\u102c\u101e\u100a\u103a\u104b \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c suppression \u1019\u101b\u103e\u102d\u1015\u102b\u1000 coil de-energization \u101e\u100a\u103a control circuits \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1005\u1031\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c voltage spikes \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1015\u1031\u1038\u101e\u100a\u103a\u104b \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a-<\/p>\n<ul>\n<li><strong>RC snubbers<\/strong> (resistor-capacitor networks) coil terminals \u1019\u103b\u102c\u1038\u1015\u1031\u102b\u103a\u1010\u103d\u1004\u103a<\/li>\n<li><strong>Varistor (MOV) suppression<\/strong> transient absorption \u1021\u1010\u103d\u1000\u103a<\/li>\n<li><strong>Freewheeling diodes<\/strong> DC coils \u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a<\/li>\n<\/ul>\n<p><a href=\"https:\/\/test.viox.com\/my\/coil-suppression-techniques-diode-vs-zener-rc-snubber\/\">coil suppression \u1014\u100a\u103a\u1038\u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u102d\u102f\u1019\u102d\u102f\u101c\u1031\u1037\u101c\u102c\u1015\u102b<\/a><\/p>\n<h3>Environmental Derating<\/h3>\n<p>AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b ratings \u1014\u103e\u1005\u103a\u1001\u102f\u101c\u102f\u1036\u1038\u101e\u100a\u103a standard test conditions (25\u00b0C ambient, sea level, pollution degree 2) \u1000\u102d\u102f \u101a\u1030\u1006\u101e\u100a\u103a\u104b \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1010\u1015\u103a\u1006\u1004\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a derating \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a-<\/p>\n<p><strong>\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1000\u103b\u1006\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038-<\/strong><\/p>\n<ul>\n<li>40\u00b0C: rated current \u104f 100%<\/li>\n<li>50\u00b0C: rated current \u104f 90%<\/li>\n<li>60\u00b0C: rated current \u104f 80%<\/li>\n<\/ul>\n<p><strong>\u1021\u1019\u103c\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103c\u1004\u103a\u1038-<\/strong><\/p>\n<ul>\n<li>0-2000m: rated current \u104f 100%<\/li>\n<li>2000-3000m: rated current \u104f 95%<\/li>\n<li>3000-4000m: rated current \u104f 90%<\/li>\n<\/ul>\n<p><a href=\"https:\/\/test.viox.com\/my\/electrical-derating-temperature-altitude-grouping-factors\/\">\u1015\u103c\u102e\u1038\u1015\u103c\u100a\u1037\u103a\u1005\u102f\u1036\u101e\u1031\u102c derating \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/a><\/p>\n<h2>\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1014\u1031\u101e\u1031\u102c Contactors \u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u103f\u1014\u102c\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038<\/h2>\n<h3>Motor Loads \u1010\u103d\u1004\u103a AC-7a \u1000\u102d\u102f \u1019\u103e\u102c\u1038\u101a\u103d\u1004\u103a\u1038\u1005\u103d\u102c\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038\u104f \u101c\u1000\u1039\u1001\u100f\u102c\u1019\u103b\u102c\u1038<\/h3>\n<ol>\n<li><strong>\u1021\u1006\u1000\u103a\u1019\u103b\u102c\u1038 \u1000\u1015\u103a\u1001\u103c\u1004\u103a\u1038<\/strong> (contactor \u1015\u103d\u1004\u1037\u103a\u1019\u101c\u102c\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li><strong>\u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a \u1000\u103d\u102d\u102f\u1004\u103a\u1019\u103e \u1021\u101e\u1036\u1019\u103c\u100a\u103a\u1001\u103c\u1004\u103a\u1038<\/strong> \u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a\u1001\u103b\u102d\u1014\u103a\u1010\u103d\u1004\u103a<\/li>\n<li><strong>Contactor \u1021\u102d\u1019\u103a\u101b\u102c\u1019\u103e \u1019\u103c\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c arcing<\/strong> \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u101c\u1004\u103a\u1038\u101b\u1031\u102c\u1004\u103a\u1011\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/li>\n<li><strong>\u1019\u102e\u1038\u101c\u1031\u102c\u1004\u103a\u101e\u1031\u102c\u1021\u1014\u1036\u1037<\/strong> \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a terminals \u1021\u1014\u102e\u1038\u101b\u103e\u102d \u1021\u101b\u1031\u102c\u1004\u103a\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1014\u1031\u101e\u1031\u102c \u1015\u101c\u1010\u103a\u1005\u1010\u1005\u103a<\/li>\n<li><strong>\u1021\u1001\u103b\u102d\u1014\u103a\u1019\u1010\u102d\u102f\u1004\u103a\u1019\u102e \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1001\u103c\u1004\u103a\u1038<\/strong> (&lt;1000 operations vs. rated 100,000)<\/li>\n<\/ol>\n<h3>\u101b\u1031\u102c\u1002\u102b\u101b\u103e\u102c\u1016\u103d\u1031\u1001\u103c\u1004\u103a\u1038\u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1005\u1009\u103a<\/h3>\n<p><strong>\u1021\u1006\u1004\u1037\u103a \u1041:<\/strong> load \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1014\u103e\u1004\u1037\u103a current \u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b<\/p>\n<ul>\n<li>clamp meter \u1016\u103c\u1004\u1037\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a current \u1021\u1019\u103e\u1014\u103a\u1000\u102d\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1015\u102b<\/li>\n<li>\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u104f \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1014\u103e\u1004\u1037\u103a \u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101a\u103e\u1009\u103a\u1015\u102b\u104b<\/li>\n<\/ul>\n<p><strong>\u1021\u1006\u1004\u1037\u103a \u1042:<\/strong> \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u104f \u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b\u104b<\/p>\n<ul>\n<li>\u1001\u103b\u102d\u102f\u1004\u1037\u103a\u101d\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u104a \u1010\u102d\u102f\u1000\u103a\u1005\u102c\u1038\u1001\u103c\u1004\u103a\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1002\u101f\u1031\u1006\u1000\u103a\u1001\u103c\u1004\u103a\u1038 \u101b\u103e\u102d\u1019\u101b\u103e\u102d \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b\u104b<\/li>\n<li>\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1001\u102f\u1001\u1036\u1021\u102c\u1038\u1000\u102d\u102f \u1010\u102d\u102f\u1004\u103a\u1038\u1010\u102c\u1015\u102b (1m\u03a9 \u1011\u1000\u103a\u1014\u100a\u103a\u1038\u101e\u1004\u1037\u103a\u101e\u100a\u103a)\u104b<\/li>\n<\/ul>\n<p><strong>\u1021\u1006\u1004\u1037\u103a 3-<\/strong> \u101c\u100a\u103a\u1015\u1010\u103a\u1019\u103e\u102f\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1000\u102d\u102f \u1021\u1000\u1032\u1016\u103c\u1010\u103a\u1015\u102b\u104b<\/p>\n<ul>\n<li>\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u104a \u1005\u102d\u102f\u1011\u102d\u102f\u1004\u103a\u1038\u1006\u104a \u100a\u1005\u103a\u100a\u1019\u103a\u1038\u1019\u103e\u102f\u104b<\/li>\n<li>\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1014\u103e\u102f\u1014\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u102f\u1015\u103a\u1004\u1014\u103a\u1038\u1010\u102c\u101d\u1014\u103a\u1005\u1000\u103a\u101d\u1014\u103a\u1038\u104b<\/li>\n<\/ul>\n<p><strong>\u1021\u1006\u1004\u1037\u103a 4-<\/strong> \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1000\u102d\u102f \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1015\u102b\u104b<\/p>\n<ul>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1021\u1010\u103d\u1000\u103a AC-7b \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u104b<\/li>\n<li>\u1019\u1031\u102c\u103a\u1010\u102c FLA \u104f \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 125% \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u104b<\/li>\n<li>\u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101e\u100a\u103a \u101c\u1031\u102c\u1037\u1001\u103a\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c \u101b\u102d\u102f\u1010\u102c\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1011\u1000\u103a \u1000\u103c\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u1015\u102b\u104b<\/li>\n<\/ul>\n<p><a href=\"https:\/\/test.viox.com\/my\/contactor-troubleshooting-guide-buzzing-coil-failure\/\">\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \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\u1000\u102d\u102f \u1021\u1015\u103c\u102e\u1038\u101e\u1010\u103a\u1015\u102b\u104b<\/a><\/p>\n<h2>\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1010\u103d\u1031\u1014\u1032\u1037 \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f<\/h2>\n<h3>IEC 61095:2023<\/h3>\n<p>\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1019\u1031\u102c\u103a\u1002\u103b\u1030\u101c\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101c\u1000\u103a\u101b\u103e\u102d\u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u101e\u100a\u103a \u1021\u1031\u102c\u1000\u103a\u1015\u102b\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u101e\u100a\u103a-<\/p>\n<ul>\n<li>\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038 AC-7a, AC-7b, AC-7c (\u1000\u1000\u103a\u1015\u102b\u1005\u102e\u1010\u102c \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038)<\/li>\n<li>\u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\/\u1016\u103b\u1000\u103a\u101e\u102d\u1019\u103a\u1038\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u1021\u1010\u103d\u1000\u103a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u101c\u102f\u1015\u103a\u1011\u102f\u1036\u1038\u101c\u102f\u1015\u103a\u1014\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u104b<\/li>\n<li>\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038 (\u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u101e\u1000\u103a\u1010\u1019\u103a\u1038)<\/li>\n<li>\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a\u1019\u103c\u1004\u1037\u103a\u1010\u1000\u103a\u1019\u103e\u102f \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1015\u1030\u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1019\u103e\u102f\u104b<\/li>\n<li>\u101d\u102b\u101a\u102c\u101b\u103e\u1031\u102c\u1037\u1016\u103c\u1005\u103a\u1001\u103c\u1004\u103a\u1038 \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u104b<\/li>\n<\/ul>\n<p><strong>2023 \u1011\u102f\u1010\u103a\u101d\u1031\u1019\u103e\u102f\u1010\u103d\u1004\u103a \u1021\u1013\u102d\u1000\u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1019\u103e\u102f-<\/strong> \u1021\u102e\u101c\u1000\u103a\u1011\u101b\u103d\u1014\u103a\u1038\u1014\u1005\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038 (VFD \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038) \u1021\u1010\u103d\u1000\u103a AC-7d \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1000\u102d\u102f \u1019\u102d\u1010\u103a\u1006\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u104a \u101a\u1001\u102f IEC 60947-4-1 \u1010\u103d\u1004\u103a \u1011\u100a\u1037\u103a\u101e\u103d\u1004\u103a\u1038\u1011\u102c\u1038\u101e\u100a\u103a\u104b.<\/p>\n<h3>\u1015\u103c\u102f\u101c\u1000\u103a\u1019\u103e\u1010\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/h3>\n<p>\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101b\u100a\u103a\u101b\u103d\u101a\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1008\u1031\u1038\u1000\u103d\u1000\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102d\u1021\u1019\u103e\u1010\u103a\u1015\u103c\u102f \u1021\u1019\u103e\u1010\u103a\u1021\u101e\u102c\u1038\u1019\u103b\u102c\u1038 \u1015\u102b\u101b\u103e\u102d\u101b\u1019\u100a\u103a-<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th style=\"text-align: left;\">\u1010\u102d\u102f\u1004\u103a\u1038\u1012\u1031\u101e\u1000\u103c\u102e\u1038<\/th>\n<th style=\"text-align: left;\">\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1021\u1019\u103e\u1010\u103a\u1021\u101e\u102c\u1038\u1019\u103b\u102c\u1038<\/th>\n<th style=\"text-align: left;\">\u1000\u102d\u102f\u1038\u1000\u102c\u1038\u1011\u102c\u1038\u101e\u1031\u102c \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u1025\u101b\u1031\u102c\u1015\u101e\u1019\u1002\u1039\u1002<\/td>\n<td>CE, ENEC<\/td>\n<td>IEC 61095, EN 61095<\/td>\n<\/tr>\n<tr>\n<td>\u1019\u103c\u1031\u102c\u1000\u103a\u1021\u1019\u1031\u101b\u102d\u1000<\/td>\n<td>UL, CSA<\/td>\n<td>UL 60947-4-1, CSA C22.2<\/td>\n<\/tr>\n<tr>\n<td>\u1010\u101b\u102f\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u1004\u1036<\/td>\n<td>CCC<\/td>\n<td>GB\/T 14048.4<\/td>\n<\/tr>\n<tr>\n<td>\u101e\u103c\u1005\u1010\u103c\u1031\u1038\u101c\u103b<\/td>\n<td>SAA, RCM<\/td>\n<td>AS\/NZS 60947.4.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>VIOX \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f-<\/strong> VIOX \u1019\u1031\u102c\u103a\u1002\u103b\u1030\u101c\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101e\u100a\u103a \u1000\u1019\u1039\u1018\u102c\u101c\u102f\u1036\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1008\u1031\u1038\u1000\u103d\u1000\u103a\u101e\u102d\u102f\u1037 \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u101b\u1014\u103a \u1015\u103c\u1004\u103a\u1015\u1021\u1016\u103d\u1032\u1037\u1021\u1005\u100a\u103a\u1038\u1019\u103e \u1021\u101e\u102d\u1021\u1019\u103e\u1010\u103a\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c IEC 61095 \u1014\u103e\u1004\u1037\u103a UL 60947-4-1 \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1015\u102b\u101e\u100a\u103a\u104b.<\/p>\n<h2>\u101e\u1031\u102c\u1037\u1011\u102f\u1010\u103a\u101a\u1030\u1019\u103e\u102f\u1019\u103b\u102c\u1038<\/h2>\n<ul>\n<li>\u2705 <strong>AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a \u101c\u103e\u102f\u1036\u1037\u1006\u1031\u102c\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1012\u102e\u1007\u102d\u102f\u1004\u103a\u1038\u1011\u102f\u1010\u103a\u1011\u102c\u1038\u101e\u100a\u103a<\/strong> (\u1015\u102b\u101d\u102b\u1021\u1001\u103b\u1000\u103a \u22650.95) \u1021\u1015\u1030\u1015\u1031\u1038\u1005\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u102e\u1038\u1001\u103b\u1031\u102c\u1004\u103a\u1038\u1019\u103b\u102c\u1038\u1000\u1032\u1037\u101e\u102d\u102f\u1037\u101e\u1031\u102c \u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1005\u1031\u102c\u1005\u102e\u1038\u1005\u103d\u102c \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u101c\u102d\u1019\u1037\u103a\u1019\u100a\u103a\u104b.<\/li>\n<li>\u2705 <strong>AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038\u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u101e\u100a\u103a\u104b<\/strong> \u1021\u102c\u1038\u1016\u103c\u100a\u1037\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1019\u103b\u102c\u1038\u104a \u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038 \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1010\u102d\u102f\u1037\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1005\u1010\u1004\u103a\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 (\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u104f 5-8 \u1006)\u104b.<\/li>\n<li>\u2705 <strong>\u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u1000 \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1019\u1006\u102f\u1036\u1038\u1016\u103c\u1010\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u104b<\/strong>\u2014 63A AC-7a \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u101e\u100a\u103a 25A AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1000 \u101a\u102f\u1036\u1000\u103c\u100a\u103a\u1005\u102d\u1010\u103a\u1001\u103b\u1005\u103d\u102c \u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c 10A \u1019\u1031\u102c\u103a\u1010\u102c\u1000\u102d\u102f \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u1005\u103d\u102c \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a\u1019\u101f\u102f\u1010\u103a\u1015\u102b\u104b.<\/li>\n<li>\u2705 <strong>\u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u101e\u100a\u103a \u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u1031\u102c \u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1019\u103e\u102f \u1000\u1014\u1037\u103a\u101e\u1010\u103a\u1001\u103b\u1000\u103a\u1016\u103c\u1005\u103a\u101e\u100a\u103a\u104b<\/strong>\u2014 \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u104f \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1005\u103d\u1019\u103a\u1038\u101e\u100a\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u104f \u101c\u1031\u102c\u1037\u1001\u103a\u1001\u103b\u1011\u102c\u1038\u101e\u1031\u102c \u101b\u102d\u102f\u1010\u102c\u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1011\u1000\u103a \u1000\u103b\u1031\u102c\u103a\u101c\u103d\u1014\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u1015\u102b (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u1015\u103c\u100a\u1037\u103a\u104f 6-8 \u1006)\u104b.<\/li>\n<li>\u2705 <strong>\u101b\u1031\u102c\u1014\u103e\u1031\u102c\u1011\u102c\u1038\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a AC-7b \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/strong>\u2014 \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1010\u1005\u103a\u1001\u102f\u1010\u100a\u103a\u1038\u1010\u103d\u1004\u103a \u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1019\u1031\u102c\u103a\u1010\u102c\u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101e\u100a\u1037\u103a\u1021\u1001\u102b\u1010\u102d\u102f\u1004\u103a\u1038 AC-7b \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1021\u1019\u103c\u1032\u101e\u102f\u1036\u1038\u1015\u102b\u104b.<\/li>\n<li>\u2705 <strong>\u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u103b\u103e\u1031\u102c\u1037\u1001\u103b\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/strong>\u2014 \u1015\u1010\u103a\u101d\u1014\u103a\u1038\u1000\u103b\u1004\u103a\u1021\u1015\u1030\u1001\u103b\u102d\u1014\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 (&gt;40\u00b0C)\u104a \u1021\u1019\u103c\u1004\u1037\u103a (&gt;2000m) \u1014\u103e\u1004\u1037\u103a \u1019\u1000\u103c\u102c\u1001\u100f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1011\u102d\u101b\u1031\u102c\u1000\u103a\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1000\u102d\u102f \u101c\u103b\u1031\u102c\u1037\u1014\u100a\u103a\u1038\u1005\u1031\u101e\u100a\u103a\u104b.<\/li>\n<li>\u2705 <strong>\u101d\u1014\u103a\u1015\u102d\u102f\u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f\u1014\u103e\u1004\u1037\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102f\u101e\u100a\u103a \u1019\u101b\u103e\u102d\u1019\u1016\u103c\u1005\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a\u104b<\/strong>\u2014 \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u101e\u100a\u103a \u1000\u102c\u1000\u103d\u101a\u103a\u101b\u1031\u1038\u1000\u102d\u101b\u102d\u101a\u102c\u1019\u103b\u102c\u1038\u104f \u1021\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1021\u101a\u103e\u1000\u103a\u1019\u1016\u103c\u1005\u103a\u1005\u1031\u1018\u1032 \u1019\u1031\u102c\u103a\u1010\u102c\u1005\u1010\u1004\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101b\u1019\u100a\u103a\u104b.<\/li>\n<li>\u2705 <strong>AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a AC-7a \u1011\u1000\u103a 20-40% \u1015\u102d\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u101e\u100a\u103a\u104b<\/strong> \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a \u101d\u1014\u103a\u1006\u1031\u102c\u1004\u103a\u1019\u103e\u102f\u1001\u1031\u102b\u103a\u1006\u102d\u102f\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u104a \u101b\u1015\u103a\u1006\u102d\u102f\u1004\u103a\u1038\u1001\u103b\u102d\u1014\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1005\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a \u1015\u102d\u102f\u1019\u102d\u102f\u1000\u102f\u1014\u103a\u1000\u103b\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u1006\u102d\u102f\u1038\u101b\u103d\u102c\u1038\u101e\u1031\u102c \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1000\u102c\u1000\u103d\u101a\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/li>\n<li>\u2705 <strong>IEC 61095 \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f\u101e\u100a\u103a \u1000\u1019\u1039\u1018\u102c\u101c\u102f\u1036\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1008\u1031\u1038\u1000\u103d\u1000\u103a\u101e\u102d\u102f\u1037 \u101d\u1004\u103a\u101b\u1031\u102c\u1000\u103a\u1001\u103d\u1004\u1037\u103a\u1000\u102d\u102f \u101e\u1031\u1001\u103b\u102c\u1005\u1031\u101e\u100a\u103a\u104b<\/strong>\u2014 \u101e\u1004\u1037\u103a\u1012\u1031\u101e\u1021\u1010\u103d\u1000\u103a \u101e\u1004\u1037\u103a\u101c\u103b\u1031\u102c\u103a\u101e\u1031\u102c \u1021\u101e\u102d\u1021\u1019\u103e\u1010\u103a\u1015\u103c\u102f \u1021\u1019\u103e\u1010\u103a\u1021\u101e\u102c\u1038\u1019\u103b\u102c\u1038 (CE, UL, CCC) \u1015\u102b\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b\u104b.<\/li>\n<li>\u2705 <strong>AC-7a \u1019\u103e AC-7b \u101e\u102d\u102f\u1037 \u1021\u1006\u1004\u1037\u103a\u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1015\u1004\u103a\u1014\u101a\u103a\u101c\u103a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u1019\u103d\u1019\u103a\u1038\u1019\u1036\u1019\u103e\u102f\u1019\u103b\u102c\u1038 \u1019\u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u104b<\/strong>\u2014 \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030\u1021\u1019\u103b\u102c\u1038\u1005\u102f\u101e\u100a\u103a \u1010\u1030\u100a\u102e\u101e\u1031\u102c DIN \u101b\u1011\u102c\u1038\u101c\u1019\u103a\u1038 \u1001\u103c\u1031\u101b\u102c\u1010\u103d\u1004\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u1014\u103e\u1005\u103a\u1001\u102f\u1005\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u1015\u1031\u1038\u1006\u1031\u102c\u1004\u103a\u101e\u100a\u103a\u104b.<\/li>\n<\/ul>\n<h2>\u1019\u1000\u103c\u102c\u1001\u100f\u1019\u1031\u1038\u1019\u1031\u1038\u1001\u103d\u1014\u103a\u1038\u1019\u103b\u102c\u1038<\/h2>\n<p><strong>\u1019\u1031\u1038- AC-7a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1000\u102d\u102f \u101e\u102f\u1036\u1038\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u101f\u102f\u1010\u103a\u1000\u1032\u1037\u104a AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a AC-7a \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1021\u1015\u103c\u100a\u1037\u103a\u1021\u101d \u1010\u103d\u1032\u1016\u1000\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1015\u1005\u1039\u1005\u100a\u103a\u1038\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1019\u102e\u1038\u1004\u103c\u103e\u102d\u1019\u103a\u1038\u101e\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1001\u102f\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u102c\u1038\u1014\u100a\u103a\u1038\u1001\u103b\u1000\u103a\u1019\u101b\u103e\u102d\u101e\u1031\u102c\u103a\u101c\u100a\u103a\u1038 \u101e\u1004\u103a\u1019\u101c\u102d\u102f\u1021\u1015\u103a\u101e\u1031\u102c \u1005\u103d\u1019\u103a\u1038\u101b\u100a\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1015\u101b\u102e\u1019\u102e\u101a\u1036\u1015\u1031\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u101e\u100a\u103a\u104b \u101e\u102d\u102f\u1037\u101e\u1031\u102c\u103a AC-7b \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a AC-7a \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1001\u103c\u1004\u103a\u1038\u101e\u100a\u103a \u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1019\u103e\u102f\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1005\u1031\u101c\u102d\u1019\u1037\u103a\u1019\u100a\u103a\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- \u1000\u103b\u103d\u1014\u103a\u102f\u1015\u103a\u104f \u101c\u1000\u103a\u101b\u103e\u102d\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u101e\u100a\u103a AC-7a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a AC-7b \u1016\u103c\u1005\u103a\u1019\u1016\u103c\u1005\u103a \u1019\u100a\u103a\u101e\u102d\u102f\u1037\u1001\u103d\u1032\u1001\u103c\u102c\u1038\u1014\u102d\u102f\u1004\u103a\u1019\u100a\u103a\u1014\u100a\u103a\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038 \u1021\u1019\u103e\u1010\u103a\u1021\u101e\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1019\u100a\u103a\u1015\u103c\u102c\u1038 \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1012\u1031\u1010\u102c\u1005\u102c\u101b\u103d\u1000\u103a\u1000\u102d\u102f \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b\u104b \u104e\u1004\u103a\u1038\u101e\u100a\u103a \u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030 \u201cAC-7a\u201d \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u201cAC-7b\u201d \u101f\u102f \u101b\u103e\u1004\u103a\u1038\u101b\u103e\u1004\u103a\u1038\u101c\u1004\u103a\u1038\u101c\u1004\u103a\u1038 \u1016\u1031\u102c\u103a\u1015\u103c\u101c\u102d\u1019\u1037\u103a\u1019\u100a\u103a\u104b \u101c\u1000\u103a\u101b\u103e\u102d\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1010\u1005\u103a\u1001\u102f\u101e\u102c \u1016\u1031\u102c\u103a\u1015\u103c\u1011\u102c\u1038\u1015\u102b\u1000 \u1019\u1031\u102c\u103a\u1010\u102c\u1019\u101f\u102f\u1010\u103a\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1016\u103c\u1005\u103a\u101e\u1031\u102c AC-7a \u1016\u103c\u1005\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u101e\u100a\u103a\u104b AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u1014\u103e\u1005\u103a\u1001\u102f\u1000\u102d\u102f \u1015\u103c\u101e\u101e\u100a\u103a- \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c AC-7a \u1010\u1014\u103a\u1016\u102d\u102f\u1038\u1014\u103e\u1004\u1037\u103a \u1014\u102d\u1019\u1037\u103a\u101e\u1031\u102c AC-7b \u1010\u1014\u103a\u1016\u102d\u102f\u1038\u104b.<\/p>\n<p><strong>\u1019\u1031\u1038- AC-7b \u1014\u103e\u1004\u1037\u103a AC-3 \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u102c\u1038 \u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1000\u1018\u102c\u101c\u1032\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- AC-3 \u101e\u100a\u103a \u101e\u102f\u1036\u1038\u1006\u1004\u1037\u103a\u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1005\u1000\u103a\u1019\u103e\u102f\u1019\u1031\u102c\u103a\u1010\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038 (IEC 60947-4-1) \u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a &gt;3kW\u104a \u1017\u102d\u102f\u1037\u1021\u102c\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 (690V \u1021\u1011\u102d) \u1014\u103e\u1004\u1037\u103a \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a (1000A \u1021\u1011\u102d) \u1015\u102b\u101b\u103e\u102d\u101e\u100a\u103a\u104b AC-7b \u101e\u100a\u103a \u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038 \u1010\u1005\u103a\u1006\u1004\u1037\u103a\u1019\u1031\u102c\u103a\u1010\u102c \u22642.2kW \u1021\u1010\u103d\u1000\u103a \u101e\u102e\u1038\u101e\u1014\u1037\u103a\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 \u101c\u103b\u103e\u1015\u103a\u1005\u102e\u1038\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a \u226432A \u1015\u102b\u101b\u103e\u102d\u101e\u100a\u103a\u104b AC-3 \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a\u101e\u102f\u1036\u1038 \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u101c\u103d\u1014\u103a\u1021\u1000\u103b\u103d\u1036 \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u1015\u102d\u102f\u1019\u102d\u102f\u1005\u103b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a\u104b. <a href=\"https:\/\/test.viox.com\/my\/electrical-standards-for-contactors-understanding-ac1-ac2-ac3-ac4-dc1-dc2-and-dc3-utilization-categories\/\">\u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c \u1005\u1036\u1014\u103e\u102f\u1014\u103a\u1038\u1019\u103b\u102c\u1038\u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1015\u102d\u102f\u1019\u102d\u102f\u101c\u1031\u1037\u101c\u102c\u1015\u102b\u104b<\/a><\/p>\n<p><strong>\u1019\u1031\u1038- AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u101e\u100a\u103a \u1010\u1005\u103a\u1014\u102c\u101b\u102e\u101c\u103b\u103e\u1004\u103a \u1019\u100a\u103a\u1019\u103b\u103e \u1005\u1010\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u1014\u100a\u103a\u1038\u104b<\/strong><\/p>\n<p>\u1016\u103c\u1031- \u1005\u1036 AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101b\u1036\u1016\u1014\u103a\u101b\u1036\u1001\u102b \u1005\u1010\u1004\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038 \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a \u1010\u1005\u103a\u1019\u102d\u1014\u1005\u103a\u101c\u103b\u103e\u1004\u103a \u22645 \u1000\u103c\u102d\u1019\u103a \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a 10 \u1019\u102d\u1014\u1005\u103a\u1021\u1010\u103d\u1004\u103a\u1038 \u226410 \u1000\u103c\u102d\u1019\u103a \u1005\u1010\u1004\u103a\u1014\u102d\u102f\u1004\u103a\u101e\u100a\u103a\u104b \u1010\u102c\u101d\u1014\u103a\u1005\u1000\u103a\u101d\u1014\u103a\u1038 \u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u1001\u103c\u1004\u103a\u1038 (\u1025\u1015\u1019\u102c- \u1016\u102d\u1021\u102c\u1038\u1015\u1031\u1038\u1005\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1001\u103b\u1019\u103e\u102f\u1019\u103b\u102c\u1038) \u1021\u1010\u103d\u1000\u103a \u1019\u103c\u103e\u1004\u1037\u103a\u1010\u1004\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101e\u1000\u103a\u1010\u1019\u103a\u1038 \u1021\u1006\u1004\u1037\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1015\u102b\u101e\u1031\u102c \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u102b \u101e\u102d\u102f\u1037\u1019\u101f\u102f\u1010\u103a \u1021\u1000\u1031\u102c\u1004\u103a\u1021\u1011\u100a\u103a\u1016\u1031\u102c\u103a\u1015\u102b\u104b <a href=\"https:\/\/test.viox.com\/my\/on-delay-vs-off-delay-timers\/\">\u1021\u1001\u103b\u102d\u1014\u103a\u1014\u103e\u1031\u102c\u1004\u1037\u103a\u1014\u103e\u1031\u1038 \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f<\/a>.<\/p>\n<p><strong>\u1019\u1031\u1038- AC-7b \u1000\u103d\u1014\u103a\u1010\u1000\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u1021\u1011\u1030\u1038\u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038 \u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u101e\u101c\u102c\u1038\u104b<\/strong><\/p>\n<p>A: No, the wiring requirements are identical to AC-7a. Use wire sized for 125% of the motor\u2019s full load current per NEC Article 430 or IEC 60364. The contactor terminals accept the same wire gauges as the equivalent AC-7a model.<\/p>\n<p><strong>Q: Can I retrofit an AC-7b contactor into an existing AC-7a installation?<\/strong><\/p>\n<p>A: Yes, in most cases. Verify that:<\/p>\n<ol>\n<li>The DIN rail mounting footprint matches (usually identical within the same product family)<\/li>\n<li>Terminal wire sizing is adequate for the motor current<\/li>\n<li>The control circuit voltage matches the new contactor\u2019s coil rating<\/li>\n<li>Overload protection is coordinated with the motor starting characteristics<\/li>\n<\/ol>\n<p><strong>Q: What causes the \u201cbuzzing\u201d sound in contactors controlling motors?<\/strong><\/p>\n<p>A: Buzzing during motor starting indicates the coil voltage is dropping below the hold-in threshold due to supply voltage sag from the high inrush current. This is more common with AC-7a contactors that lack the reinforced coil design of AC-7b models. Solutions include using a DC coil with rectified supply or upgrading to an AC-7b contactor with enhanced coil hold-in characteristics. <a href=\"https:\/\/test.viox.com\/my\/contactor-troubleshooting-guide-buzzing-coil-failure\/\">Troubleshooting guide<\/a><\/p>\n<p><strong>Q: Are there any safety concerns with using the wrong contactor category?<\/strong><\/p>\n<p>A: Yes. A failed contactor can weld closed, causing the motor to run continuously, leading to overheating and potential fire hazards. Alternatively, contacts can weld partially, creating high-resistance connections that generate excessive heat. Always use AC-7b contactors for motor loads to ensure safe operation and compliance with electrical codes.<\/p>\n<h2>\u1014\u102d\u1002\u102f\u1036\u1038<\/h2>\n<p>The distinction between AC-7a and AC-7b modular contactors represents a fundamental engineering principle: <strong>matching component specifications to application requirements<\/strong>. While the 20-40% cost premium for AC-7b contactors may seem significant, it pales in comparison to the costs of premature failure, service calls, and potential safety hazards.<\/p>\n<p>For electrical professionals, the selection criteria are clear: <strong>use AC-7a for resistive loads, AC-7b for motors\u2014no exceptions<\/strong>. The enhanced contact materials, arc suppression systems, and making capacity of AC-7b contactors are not optional features but essential design elements for reliable motor control.<\/p>\n<p>As household and light commercial equipment increasingly incorporates motor-driven components (HVAC systems, heat pumps, ventilation), the importance of proper contactor selection will only grow. By understanding the technical differences outlined in this guide and applying the selection methodology, you can ensure system reliability, safety, and longevity.<\/p>\n<p><strong>VIOX \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a<\/strong> manufactures a complete range of modular contactors with both AC-7a and AC-7b ratings, certified to IEC 61095 and UL 60947-4-1 standards. Our technical support team can assist with application-specific selection and coordination with protective devices. <a href=\"https:\/\/test.viox.com\/my\/\">\u1000\u103c\u103e\u1014\u103b\u102f\u1015\u103b\u1010\u102d\u102f\u1037\u1000\u102d\u102f\u1006\u1000\u103b\u101e\u103e\u101a\u103b\u101b\u1014\u103b<\/a> for detailed specifications and selection assistance.<\/p>\n<h2>\u1006\u1000\u103a\u1005\u1015\u103a\u1021\u101b\u1004\u103a\u1038\u1021\u1019\u103c\u1005\u103a\u1019\u103b\u102c\u1038<\/h2>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/my\/iec-61095-vs-iec-60947-4-1-household-industrial-contactors\/\">IEC 61095 vs. IEC 60947-4-1: Household and Industrial Contactor Standards<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/inside-ac-contactor-components-design-logic\/\">Inside AC Contactor Components: Design Logic<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/how-to-choose-modular-contactor-ac-dc\/\">How to Choose Modular Contactor: AC vs DC<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/contactors-vs-relays-understanding-the-key-differences\/\">Contactors \u1014\u103e\u1004\u1037\u103a Relay \u1019\u103b\u102c\u1038- \u1021\u1013\u102d\u1000\u1000\u103d\u102c\u1001\u103c\u102c\u1038\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1014\u102c\u1038\u101c\u100a\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/contactor-vs-motor-starter\/\">Contactor vs. Motor Starter: Complete Comparison<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/safety-contactor-vs-standard-contactor-force-guided-contacts-guide\/\">\u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101b\u1031\u1038 Contactor \u1014\u103e\u1004\u1037\u103a Standard Contactor- Force-Guided Contacts \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/industrial-contactor-maintenance-inspection-checklist\/\">Industrial Contactor Maintenance Inspection Checklist<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/understanding-1-pole-vs-2-pole-ac-contactors\/\">Understanding 1 Pole vs. 2 Pole AC Contactors<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/how-to-select-contactors-and-circuit-breakers-based-on-motor-power\/\">Motor Power \u1000\u102d\u102f\u1021\u1001\u103c\u1031\u1001\u1036\u104d Contactors \u1014\u103e\u1004\u1037\u103a Circuit Breakers \u1000\u102d\u102f\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1014\u100a\u103a\u1038<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/my\/star-delta-starter-wiring-diagram-sizing-selection-guide\/\">Star Delta Starter Wiring Diagram: Sizing &amp; Selection Guide<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 218px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 218px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1736.75px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1736.75px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5989.67px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5989.67px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 218px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 7268.22px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 7268.22px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5989.67px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5989.67px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 3868.12px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 3868.12px; left: 14.0078px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>When modular contactors fail prematurely in household and light commercial applications, the root cause often traces back to a critical specification error: using an AC-7a rated contactor for an AC-7b application. This seemingly minor distinction\u2014defined by IEC 61095 standards\u2014represents the difference between reliable operation and catastrophic failure when controlling inductive loads like motors, fans, and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21432,"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-21431","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\/21431","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=21431"}],"version-history":[{"count":3,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21431\/revisions"}],"predecessor-version":[{"id":21435,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/posts\/21431\/revisions\/21435"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media\/21432"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/media?parent=21431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/categories?post=21431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/my\/wp-json\/wp\/v2\/tags?post=21431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}