{"id":16685,"date":"2025-05-19T23:09:46","date_gmt":"2025-05-19T15:09:46","guid":{"rendered":"https:\/\/viox.com\/?p=16685"},"modified":"2026-01-19T11:25:18","modified_gmt":"2026-01-19T03:25:18","slug":"how-to-select-an-mccb-for-a-panel","status":"publish","type":"post","link":"https:\/\/test.viox.com\/el\/how-to-select-an-mccb-for-a-panel\/","title":{"rendered":"\u03a0\u03ce\u03c2 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd MCCB \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1: \u039cCCB: \u0391\u03c0\u03cc\u03bb\u03c5\u03c4\u03bf\u03c2 \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03b5 \u03ba\u03b1\u03bb\u03bf\u03cd\u03c0\u03b9"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c9\u03c3\u03c4\u03bf\u03cd <a href=\"https:\/\/test.viox.com\/el\/mccb\/\"><strong>\u039c\u03bf\u03c1\u03c6\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (MCCB)<\/strong><\/a> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b1\u03c0\u03cc\u03c6\u03b1\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1, \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae\u03c2 \u03b4\u03b9\u03b1\u03bd\u03bf\u03bc\u03ae\u03c2 \u03c3\u03b1\u03c2. \u03a3\u03b5 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03c4\u03c5\u03c0\u03b9\u03ba\u03bf\u03cd\u03c2 \u03bf\u03b9\u03ba\u03b9\u03b1\u03ba\u03bf\u03cd\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2, \u03c4\u03b1 MCCB \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2, \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c5\u03c8\u03b7\u03bb\u03ad\u03c2 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf <strong>IEC 60947-2<\/strong>.<\/p>\n<p>\u0388\u03bd\u03b1 MCCB \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03b9\u03bb\u03b5\u03b3\u03b5\u03af \u03b5\u03c3\u03c6\u03b1\u03bb\u03bc\u03ad\u03bd\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03b5\u03bd\u03bf\u03c7\u03bb\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ad\u03c2, \u03b6\u03b7\u03bc\u03b9\u03ac \u03c3\u03c4\u03bf\u03bd \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc \u03ae \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03c1\u03bf\u03c6\u03b9\u03ba\u03ae \u03b1\u03c3\u03c4\u03bf\u03c7\u03af\u03b1 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03b2\u03c1\u03b1\u03c7\u03c5\u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2. \u0391\u03c5\u03c4\u03cc\u03c2 \u03bf \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03bf\u03c2 \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b8\u03b1 \u03c3\u03b1\u03c2 \u03ba\u03b1\u03b8\u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2, \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03c1\u03b5\u03c5\u03bc\u03ac\u03c4\u03c9\u03bd \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ad\u03c9\u03c2 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03bb\u03ae\u03b8\u03b5\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03ba\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03b8\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c4\u03ad\u03bb\u03b5\u03b9\u03bf MCCB \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03ac \u03c3\u03b1\u03c2.<\/p>\n<h2>\u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 MCCB \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1\u03c4\u03af \u03bd\u03b1 \u03c4\u03bf \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5;<\/h2>\n<p>A <a href=\"https:\/\/test.viox.com\/el\/what-is-a-molded-case-circuit-breaker-mccb\/\">\u039c\u03bf\u03c1\u03c6\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (MCCB)<\/a> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03bf\u03cd \u03b2\u03b1\u03b8\u03bc\u03bf\u03cd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae\u03c2 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03b5\u03b9 \u03c4\u03b1 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b1\u03c0\u03cc \u03c5\u03c0\u03b5\u03c1\u03c6\u03bf\u03c1\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b2\u03c1\u03b1\u03c7\u03c5\u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03b1. \u039f\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c7\u03c5\u03c4\u03cc \u03bc\u03bf\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc \u03c0\u03b5\u03c1\u03af\u03b2\u03bb\u03b7\u03bc\u03ac \u03c4\u03bf\u03c5, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03c4\u03bf\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc \u03bc\u03b5\u03c4\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2, \u03c4\u03bf\u03bd \u03b8\u03ac\u03bb\u03b1\u03bc\u03bf \u03b1\u03c0\u03cc\u03c3\u03b2\u03b5\u03c3\u03b7\u03c2 \u03c4\u03cc\u03be\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b1\u03c0\u03bf\u03ba\u03bf\u03c0\u03ae\u03c2.<\/p>\n<p>\u0395\u03bd\u03ce \u03c4\u03bf <a href=\"https:\/\/test.viox.com\/el\/mcb\/\">\u039c\u03b9\u03ba\u03c1\u03bf\u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03b9 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2 (MCB)<\/a> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b4\u03b9\u03b1\u03bd\u03bf\u03bc\u03ae\u03c2, \u03c4\u03b1 MCCB \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03b3\u03b9\u03b1 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03cc\u03c4\u03b5\u03c2 \u03b4\u03b9\u03b1\u03bd\u03bf\u03bc\u03ae\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03c9\u03bd \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03c9\u03bd \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c1\u03b5\u03c5\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03c9\u03bd \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03bf\u03c5\u03c2.<\/p>\n<h3>\u03a3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7: MCCB \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 MCB<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; border: 1px solid #ddd; text-align: left;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>\u03a7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03b3\u03bd\u03ce\u03c1\u03b9\u03c3\u03bc\u03b1<\/th>\n<th>\u039c\u03b9\u03ba\u03c1\u03bf\u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 (MCB)<\/th>\n<th>\u039c\u03bf\u03c1\u03c6\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf\u03c2 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (MCCB)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 (In)<\/strong><\/td>\n<td>\u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 0,5A \u2013 125A<\/td>\n<td>\u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 16A \u2013 2500A<\/td>\n<\/tr>\n<tr>\n<td><strong>\u03a1\u03b5\u03cd\u03bc\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 + 25% \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2<\/strong><\/td>\n<td>\u03a7\u03b1\u03bc\u03b7\u03bb\u03cc (4,5kA \u2013 15kA)<\/td>\n<td>\u03a5\u03c8\u03b7\u03bb\u03cc (16kA \u2013 200kA)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u03a7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03b1\u03be\u03b9\u03b4\u03b9\u03bf\u03cd<\/strong><\/td>\n<td>\u03a3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc (\u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b5\u03c2 B, C, D)<\/td>\n<td>\u03a1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03bf (\u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 L, S, I, G)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf<\/strong><\/td>\n<td>IEC 60898-1 (\u039f\u03b9\u03ba\u03b9\u03b1\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7)<\/td>\n<td>IEC 60947-2 (\u0392\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u039b\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1<\/strong><\/td>\n<td>\u039c\u03cc\u03bd\u03bf \u03b8\u03b5\u03c1\u03bc\u03bf\u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc<\/td>\n<td>\u0398\u03b5\u03c1\u03bc\u03bf\u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc \u03ae \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc (\u039c\u03b9\u03ba\u03c1\u03bf\u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c2)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u03a4\u03b7\u03bb\u03b5\u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf<\/strong><\/td>\n<td>\u03a0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03b1\u03be\u03b5\u03c3\u03bf\u03c5\u03ac\u03c1<\/td>\n<td>\u03a0\u03bb\u03ae\u03c1\u03b7\u03c2 \u03b3\u03ba\u03ac\u03bc\u03b1 (Shunt trip, UVR, \u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03ba\u03b9\u03bd\u03b7\u03c4\u03ae\u03c1\u03b1)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/ndustrial-electrical-panel-with-multiple-VIOX-MCCBs-showing-different-frame-sizes-and-rating-labels-during-installation.webp\" alt=\"Industrial electrical panel with multiple VIOX MCCBs showing different frame sizes and rating labels during installation\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0395\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03bf\u03cd \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03bc\u03b5 MCCB VIOX \u03b4\u03b9\u03b1\u03c6\u03cc\u03c1\u03c9\u03bd \u03bc\u03b5\u03b3\u03b5\u03b8\u03ce\u03bd \u03c0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5 \u03c3\u03b5 \u03c1\u03ac\u03b3\u03b5\u03c2 DIN.<\/figcaption><\/figure>\n<h2>\u0392\u03b1\u03c3\u03b9\u03ba\u03bf\u03af \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b5\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae MCCB<\/h2>\n<h3>1. \u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 (In) \u03ba\u03b1\u03b9 \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5 (Inm)<\/h3>\n<p>\u03a4\u03bf <strong>\u039c\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5 (Inm)<\/strong> \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03b5\u03af \u03c4\u03bf \u03c0\u03b5\u03c1\u03af\u03b2\u03bb\u03b7\u03bc\u03b1 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7 (\u03c0.\u03c7. \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf 250A). \u03a4\u03bf <strong>\u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 (In)<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03bf\u03c0\u03bf\u03af\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03c1\u03c5\u03b8\u03bc\u03b9\u03c3\u03c4\u03b5\u03af \u03bf \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 (\u03c0.\u03c7. \u03bc\u03b9\u03b1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b1\u03c0\u03bf\u03ba\u03bf\u03c0\u03ae\u03c2 160A \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf 250A).<\/p>\n<ul>\n<li><strong>\u039a\u03b1\u03bd\u03cc\u03bd\u03b1\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2:<\/strong> $I_b \\le I_n \\le I_z$\n<ul>\n<li>$I_b$: \u03a1\u03b5\u03cd\u03bc\u03b1 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03c4\u03bf\u03c5 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n<li>$I_n$: \u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c4\u03bf\u03c5 MCCB.<\/li>\n<li>$I_z$: \u0399\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>2. \u0399\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 (Icu \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 Ics)<\/h3>\n<p>\u0397 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c8\u03b5\u03b9 \u03bc\u03b5 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c4\u03bf MCCB. \u03a3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf <strong>IEC 60947-2<\/strong>, \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03b4\u03cd\u03bf \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b5\u03c2 \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2:<\/p>\n<ul>\n<li><strong>Icu (\u0391\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2):<\/strong> \u03a4\u03bf \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c8\u03b5\u03b9 \u03bf \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03bc\u03af\u03b1 \u03c6\u03bf\u03c1\u03ac. \u039c\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bc\u03b7\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b9\u03bc\u03bf\u03c2 \u03bc\u03b5\u03c4\u03ac.<\/li>\n<li><strong>Ics (\u0399\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u0394\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u039b\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2):<\/strong> \u03a4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c8\u03b5\u03b9 \u03bf \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b5\u03b9\u03bb\u03b7\u03bc\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03bc\u03b5\u03af\u03bd\u03b5\u03b9 \u03c3\u03b5 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1.<\/li>\n<\/ul>\n<p>\u0393\u03b9\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 (\u03bd\u03bf\u03c3\u03bf\u03ba\u03bf\u03bc\u03b5\u03af\u03b1, \u03ba\u03ad\u03bd\u03c4\u03c1\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd), \u03b2\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 <strong>Ics = 100% Icu<\/strong>. \u0393\u03b9\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2, \u03c4\u03bf Ics = 50% \u03ae 75% Icu \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03b1\u03c0\u03bf\u03b4\u03b5\u03ba\u03c4\u03cc. \u039c\u03ac\u03b8\u03b5\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b3\u03b9\u03b1 <a href=\"https:\/\/test.viox.com\/el\/circuit-breaker-ratings-icu-ics-icw-icm\/\">\u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 Icu \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 Ics<\/a>.<\/p>\n<p><strong>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2:<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 100%; border: 1px solid #ddd; text-align: left;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>\u03a3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2<\/th>\n<th>\u03a0\u03c1\u03bf\u03bf\u03c0\u03c4\u03b9\u03ba\u03cc \u03a1\u03b5\u03cd\u03bc\u03b1 \u0392\u03c1\u03b1\u03c7\u03c5\u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (PSCC)<\/th>\n<th>\u03a3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03bc\u03b5\u03bd\u03b7 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 MCCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u039f\u03b9\u03ba\u03b9\u03b1\u03ba\u03ae \/ \u0395\u03bb\u03b1\u03c6\u03c1\u03b9\u03ac \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7<\/strong><\/td>\n<td>&lt; 10 kA<\/td>\n<td>16 kA \u03ae 25 kA<\/td>\n<\/tr>\n<tr>\n<td><strong>\u039a\u03cd\u03c1\u03b9\u03bf\u03c2 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03bf\u03cd \u03ba\u03c4\u03b9\u03c1\u03af\u03bf\u03c5<\/strong><\/td>\n<td>15 kA \u2013 35 kA<\/td>\n<td>36 kA \u03ae 50 kA<\/td>\n<\/tr>\n<tr>\n<td><strong>\u039a\u03cd\u03c1\u03b9\u03bf\u03c2 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1\u03c2<\/strong><\/td>\n<td>35 kA \u2013 65 kA<\/td>\n<td>70 kA \u03ae 85 kA<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0392\u03b1\u03c1\u03b9\u03ac \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \/ \u0388\u03be\u03bf\u03b4\u03bf\u03c2 \u03bc\u03b5\u03c4\u03b1\u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03b9\u03c3\u03c4\u03ae<\/strong><\/td>\n<td>&gt; 70 kA<\/td>\n<td>100 kA \u03ae 150 kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Close-up-of-VIOX-MCCB-nameplate-showing-rated-current-breaking-capacity-and-IEC-60947-2-certification-specifications.webp\" alt=\"Close-up of VIOX MCCB nameplate showing rated current, breaking capacity and IEC 60947-2 certification specifications\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u039a\u03bf\u03bd\u03c4\u03b9\u03bd\u03cc \u03c0\u03bb\u03ac\u03bd\u03bf \u03c4\u03b7\u03c2 \u03c0\u03b9\u03bd\u03b1\u03ba\u03af\u03b4\u03b1\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5 VIOX MCCB \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03b9 \u03c4\u03bf \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 (In), \u03c4\u03b7\u03bd \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 (Icu) \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 IEC 60947-2.<\/figcaption><\/figure>\n<h3>3. \u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03ac\u03c3\u03b7\u03c2<\/h3>\n<p>\u0392\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03bf MCCB \u03c0\u03bb\u03b7\u03c1\u03bf\u03af \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03ac\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03cc\u03c2 \u03c3\u03b1\u03c2. \u0391\u03bd\u03b1\u03c4\u03c1\u03ad\u03be\u03c4\u03b5 \u03c3\u03c4\u03bf\u03bd \u03bf\u03b4\u03b7\u03b3\u03cc \u03bc\u03b1\u03c2 <a href=\"https:\/\/test.viox.com\/el\/ue-vs-ui-vs-uimp-voltage-ratings-guide\/\">Ue \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 Ui \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 Uimp<\/a> \u03b3\u03b9\u03b1 \u03b2\u03b1\u03b8\u03cd\u03c4\u03b5\u03c1\u03bf\u03c5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03bf\u03cd\u03c2 \u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2.<\/p>\n<ul>\n<li><strong>Ue (\u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c4\u03ac\u03c3\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2):<\/strong> \u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 400V\/415V \u03ae 690V.<\/li>\n<li><strong>Ui (\u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c4\u03ac\u03c3\u03b7 \u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2):<\/strong> \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 $\\ge$ Ue (\u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 800V \u03ae 1000V).<\/li>\n<li><strong>Uimp (\u03a4\u03ac\u03c3\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03c0\u03b1\u03bb\u03bc\u03bf\u03cd\u03c2):<\/strong> \u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03b1\u03b9\u03c7\u03bc\u03ad\u03c2 \u03c4\u03ac\u03c3\u03b7\u03c2 (\u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 8kV).<\/li>\n<\/ul>\n<h3>4. \u03a4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1\u03c2 \u03b1\u03c0\u03bf\u03ba\u03bf\u03c0\u03ae\u03c2<\/h3>\n<p>\u0397 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b1\u03c0\u03bf\u03ba\u03bf\u03c0\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u201c\u03b5\u03b3\u03ba\u03ad\u03c6\u03b1\u03bb\u03bf\u03c2\u201d \u03c4\u03bf\u03c5 MCCB.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; border: 1px solid #ddd; text-align: left;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>\u03a7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03b3\u03bd\u03ce\u03c1\u03b9\u03c3\u03bc\u03b1<\/th>\n<th>\u0398\u03b5\u03c1\u03bc\u03bf\u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc (TM)<\/th>\n<th>\u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc (\u039c\u03b9\u03ba\u03c1\u03bf\u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c2)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1\u03c2<\/strong><\/td>\n<td>\u0394\u03b9\u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03cc (\u03a5\u03c0\u03b5\u03c1\u03c6\u03cc\u03c1\u03c4\u03c9\u03c3\u03b7) + \u03a0\u03b7\u03bd\u03af\u03bf (\u0392\u03c1\u03b1\u03c7\u03c5\u03ba\u03cd\u03ba\u03bb\u03c9\u03bc\u03b1)<\/td>\n<td>\u039c\u03b5\u03c4\u03b1\u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03b9\u03c3\u03c4\u03ad\u03c2 \u0388\u03bd\u03c4\u03b1\u03c3\u03b7\u03c2 + CPU<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0391\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1<\/strong><\/td>\n<td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1 (\u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03bf\u03c2)<\/td>\n<td>\u03a5\u03c8\u03b7\u03bb\u03ae (\u03b1\u03bd\u03b5\u03be\u03ac\u03c1\u03c4\u03b7\u03c4\u03b7 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u03a0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong><\/td>\n<td>\u03a0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 (0.7 \u2013 1.0 x In)<\/td>\n<td>\u0395\u03c5\u03c1\u03cd \u03c6\u03ac\u03c3\u03bc\u03b1 (0.4 \u2013 1.0 x In) + \u03a7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b8\u03c5\u03c3\u03c4\u03b5\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2<\/td>\n<\/tr>\n<tr>\n<td><strong>\u039b\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2<\/strong><\/td>\n<td>LI (\u039c\u03b1\u03ba\u03c1\u03ac\u03c2 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1\u03c2, \u0386\u03bc\u03b5\u03c3\u03b7)<\/td>\n<td>LSI \u03ae LSIG (\u03a3\u03c6\u03ac\u03bb\u03bc\u03b1 \u0393\u03b5\u03af\u03c9\u03c3\u03b7\u03c2)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u039a\u03cc\u03c3\u03c4\u03bf\u03c2<\/strong><\/td>\n<td>\u039a\u03ac\u03c4\u03c9<\/td>\n<td>\u03a5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7<\/td>\n<\/tr>\n<tr>\n<td><strong>\u039a\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03b3\u03b9\u03b1<\/strong><\/td>\n<td>\u03a4\u03c5\u03c0\u03b9\u03ba\u03bf\u03af \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03cc\u03c4\u03b5\u03c2, \u03b1\u03c0\u03bb\u03ac \u03c6\u03bf\u03c1\u03c4\u03af\u03b1<\/td>\n<td>\u0393\u03b5\u03bd\u03bd\u03ae\u03c4\u03c1\u03b9\u03b5\u03c2, \u03c3\u03cd\u03bd\u03b8\u03b5\u03c4\u03bf\u03c2 \u03c3\u03c5\u03bd\u03c4\u03bf\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2, \u03ba\u03b9\u03bd\u03b7\u03c4\u03ae\u03c1\u03b5\u03c2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-cutaway-diagram-of-MCCB-internal-components-including-thermal-trip-magnetic-trip-arc-chute-and-contact-mechanism.webp\" alt=\"Technical cutaway diagram of MCCB internal components including thermal trip, magnetic trip, arc chute and contact mechanism\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0395\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ae \u03c4\u03bf\u03bc\u03ae \u03b5\u03bd\u03cc\u03c2 MCCB \u03c0\u03bf\u03c5 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b1\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2, \u03c4\u03bf \u03ba\u03b1\u03bd\u03ac\u03bb\u03b9 \u03c4\u03cc\u03be\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc \u03b5\u03c0\u03b1\u03c6\u03ae\u03c2.<\/figcaption><\/figure>\n<h2>\u039f\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2 \u03b2\u03ae\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03b2\u03ae\u03bc\u03b1<\/h2>\n<p>\u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03c4\u03b5 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03c1\u03bf\u03ae \u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03ce\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03bf\u03cd \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc MCCB.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/MCCB-selection-process-flowchart-showing-step-by-step-decision-points-from-load-calculation-to-final-specification.webp\" alt=\"MCCB selection process flowchart showing step-by-step decision points from load calculation to final specification\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b2\u03ae\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03b2\u03ae\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2 MCCB: \u0391\u03c0\u03cc \u03c4\u03bf\u03bd \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03ad\u03c9\u03c2 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae.<\/figcaption><\/figure>\n<h3>\u0392\u03ae\u03bc\u03b1 1: \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc\u03c2 \u03a1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03a6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 (Ib)<\/h3>\n<p>\u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c0\u03bb\u03ae\u03c1\u03bf\u03c5\u03c2 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2.<\/p>\n<ul>\n<li><em>\u03a4\u03cd\u03c0\u03bf\u03c2 (3-\u03a6\u03b1\u03c3\u03b9\u03ba\u03cc):<\/em> $I = P \/ (\\sqrt{3} \\times V \\times PF)$<\/li>\n<li>\u0395\u03c6\u03b1\u03c1\u03bc\u03cc\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2 (\u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 125% \u03b3\u03b9\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03ae \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 NEC\/IEC).<\/li>\n<\/ul>\n<h3>\u0392\u03ae\u03bc\u03b1 2: \u03a0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03a0\u03c1\u03bf\u03bf\u03c0\u03c4\u03b9\u03ba\u03cc \u03a1\u03b5\u03cd\u03bc\u03b1 \u0392\u03c1\u03b1\u03c7\u03c5\u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (PSCC)<\/h3>\n<p>\u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2. \u03a4\u03bf MCCB\u2019s <strong>Icu<\/strong> \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae.<\/p>\n<ul>\n<li><em>\u03a3\u03b7\u03bc\u03b5\u03af\u03c9\u03c3\u03b7:<\/em> \u0395\u03ac\u03bd \u03c4\u03bf PSCC \u03b5\u03af\u03bd\u03b1\u03b9 45kA, \u03bc\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7 36kA. \u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf 50kA \u03ae 70kA.<\/li>\n<\/ul>\n<h3>\u0392\u03ae\u03bc\u03b1 3: \u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u039c\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03a0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5 \u03ba\u03b1\u03b9 \u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03a4\u03b9\u03bc\u03ae \u0391\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2<\/h3>\n<p>\u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5 \u03c0\u03bf\u03c5 \u03bd\u03b1 \u03c6\u03b9\u03bb\u03bf\u03be\u03b5\u03bd\u03b5\u03af \u03c4\u03bf \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c3\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Comparative-technical-illustration-of-three-MCCB-frame-sizes-showing-dimensional-specifications-and-terminal-configurations.webp\" alt=\"Comparative technical illustration of three MCCB frame sizes showing dimensional specifications and terminal configurations\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u03a3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5\u03b3\u03b5\u03b8\u03ce\u03bd \u03c0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5 MCCB (100A, 250A, 630A) \u03c0\u03bf\u03c5 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b4\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03bc\u03bf\u03c1\u03c6\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b1\u03ba\u03c1\u03bf\u03b4\u03b5\u03ba\u03c4\u03ce\u03bd.<\/figcaption><\/figure>\n<h3>\u0392\u03ae\u03bc\u03b1 4: \u0395\u03c6\u03b1\u03c1\u03bc\u03cc\u03c3\u03c4\u03b5 \u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03a5\u03c0\u03bf\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7\u03c2<\/h3>\n<p>\u03a4\u03b1 MCCB \u03b2\u03b1\u03b8\u03bc\u03bf\u03bd\u03bf\u03bc\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 40\u00b0C. \u0395\u03ac\u03bd \u03b5\u03b3\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03b1\u03b8\u03bf\u03cd\u03bd \u03c3\u03b5 \u03b8\u03b5\u03c1\u03bc\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c0\u03ac\u03bd\u03b5\u03bb \u03ae \u03c3\u03b5 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b1 \u03c5\u03c8\u03cc\u03bc\u03b5\u03c4\u03c1\u03b1, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03b2\u03b1\u03b8\u03bc\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1. \u0394\u03b5\u03af\u03c4\u03b5 \u03c4\u03bf \u03b4\u03b9\u03ba\u03cc \u03bc\u03b1\u03c2 <a href=\"https:\/\/test.viox.com\/el\/electrical-derating-temperature-altitude-grouping-factors\/\">\u039f\u03b4\u03b7\u03b3\u03cc\u03c2 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae\u03c2 \u03a5\u03c0\u03bf\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7\u03c2<\/a>.<\/p>\n<p><strong>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03a5\u03c0\u03bf\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7\u03c2 \u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 (\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03b3\u03b9\u03b1 \u0398\u03b5\u03c1\u03bc\u03bf\u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc MCCB):<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 100%; border: 1px solid #ddd; text-align: center;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">\u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03a0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03bf\u03c2 (\u00b0C)<\/th>\n<th>30\u00b0C<\/th>\n<th>40\u00b0C (\u0391\u03bd\u03b1\u03c6.)<\/th>\n<th>50\u00b0C<\/th>\n<th>60\u00b0C<\/th>\n<th>70\u00b0C<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u0394\u03b9\u03cc\u03c1\u03b8\u03c9\u03c3\u03b7\u03c2<\/strong><\/td>\n<td>1.10<\/td>\n<td>1.00<\/td>\n<td>0.90<\/td>\n<td>0.80<\/td>\n<td>0.70<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u0392\u03ae\u03bc\u03b1 5: \u0395\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03cd\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03a3\u03c5\u03bd\u03c4\u03bf\u03bd\u03b9\u03c3\u03bc\u03cc (\u0395\u03c0\u03b9\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1)<\/h3>\n<p>\u0392\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03ad\u03bd\u03b1 \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1 \u03ba\u03b1\u03c4\u03ac\u03bd\u03c4\u03b7 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b5\u03af <em>\u03bc\u03cc\u03bd\u03bf<\/em> \u03c4\u03bf\u03bd \u03ba\u03b1\u03c4\u03ac\u03bd\u03c4\u03b7 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7, \u03cc\u03c7\u03b9 \u03c4\u03bf\u03bd \u03ba\u03cd\u03c1\u03b9\u03bf MCCB.<\/p>\n<ul>\n<li><strong>\u0395\u03c0\u03b9\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03a1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2:<\/strong> \u039a\u03b1\u03c4\u03ce\u03c6\u03bb\u03b9 \u03b1\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2 \u03b1\u03bd\u03ac\u03bd\u03c4\u03b7 MCCB &gt; \u039a\u03b1\u03c4\u03ce\u03c6\u03bb\u03b9 \u03b1\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bd\u03c4\u03b7 \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7.<\/li>\n<li><strong>\u0395\u03c0\u03b9\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03a7\u03c1\u03cc\u03bd\u03bf\u03c5:<\/strong> \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u039c\u03bf\u03bd\u03ac\u03b4\u03b5\u03c2 \u0391\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03b5\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03ba\u03b1\u03b8\u03c5\u03c3\u03c4\u03ad\u03c1\u03b7\u03c3\u03b7 (\u0394\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2 \u039a\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b1\u03c2 B) \u03c3\u03c4\u03bf\u03bd \u03b1\u03bd\u03ac\u03bd\u03c4\u03b7 MCCB.<\/li>\n<li>\u0394\u03b9\u03b1\u03b2\u03ac\u03c3\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03b4\u03b9\u03ba\u03cc \u03bc\u03b1\u03c2 <a href=\"https:\/\/test.viox.com\/el\/what-is-breaker-selectivity-coordination-guide\/\">\u039f\u03b4\u03b7\u03b3\u03cc\u03c2 \u0395\u03c0\u03b9\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 &amp; \u03a3\u03c5\u03bd\u03c4\u03bf\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd \u0394\u03b9\u03b1\u03ba\u03bf\u03c0\u03c4\u03ce\u03bd<\/a>.<\/li>\n<\/ul>\n<h2>\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03bf\u03cd \u039c\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2<\/h2>\n<p><strong>\u03a3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf:<\/strong> \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03c3\u03b5\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd 3-\u03c6\u03b1\u03c3\u03b9\u03ba\u03cc \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03cc\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1\u03bd \u03c5\u03c0\u03bf\u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03bc\u03b5 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf 180A. \u0397 \u03c4\u03ac\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 415V AC. \u03a4\u03bf \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03b2\u03c1\u03b1\u03c7\u03c5\u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7 \u03c1\u03ac\u03b3\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 32kA. \u0397 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ae \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03b1\u03bd\u03b1\u03bc\u03ad\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 50\u00b0C.<\/p>\n<ol>\n<li><strong>\u0391\u03c0\u03b1\u03af\u03c4\u03b7\u03c3\u03b7 \u03a6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5:<\/strong> $I_b = 180A$.<\/li>\n<li><strong>\u0388\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 \u03a5\u03c0\u03bf\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7\u03c2:<\/strong> \u03a3\u03c4\u03bf\u03c5\u03c2 50\u00b0C, \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c5\u03c0\u03bf\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 0.9.\n<ul>\n<li>\u0391\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03b7 \u039f\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03a4\u03b9\u03bc\u03ae = $180A \/ 0.9 = 200A$.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03a0\u03bb\u03b1\u03b9\u03c3\u03af\u03bf\u03c5:<\/strong> \u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03ad\u03bd\u03b1 <strong>\u03a0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf 250A<\/strong> MCCB (\u03c4\u03bf \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf \u03c4\u03c5\u03c0\u03b9\u03ba\u03cc \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc 200A).<\/li>\n<li><strong>\u03a1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u039c\u03bf\u03bd\u03ac\u03b4\u03b1\u03c2 \u0391\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2:<\/strong> \u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b1\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2 250A \u03ae \u03bc\u03b9\u03b1 \u03c1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b1\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2 250A \u03c1\u03c5\u03b8\u03bc\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c3\u03b5 0.8 x In ($250 \\times 0.8 = 200A$).<\/li>\n<li><strong>\u0399\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b8\u03c1\u03b1\u03cd\u03c3\u03b7\u03c2:<\/strong> $PSCC = 32kA$.\n<ul>\n<li>\u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03ad\u03bd\u03b1 MCCB \u03bc\u03b5 <strong>Icu = 36kA<\/strong> \u03ae <strong>50kA<\/strong> (\u03a4\u03bf \u03c4\u03c5\u03c0\u03b9\u03ba\u03cc 25kA \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03b5\u03c0\u03b1\u03c1\u03ba\u03ad\u03c2).<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u03a4\u03b5\u03bb\u03b9\u03ba\u03ae \u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae:<\/strong> VIOX VMM3-250H (\u03a5\u03c8\u03b7\u03bb\u03ae \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2), 3-\u03a0\u03cc\u03bb\u03bf\u03b9, 250A, \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u039c\u03bf\u03bd\u03ac\u03b4\u03b1 \u0391\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2.<\/li>\n<\/ol>\n<h2>\u03a3\u03c5\u03bd\u03ae\u03b8\u03b7\u03c2 \u0391\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7 \u03a0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd &amp; \u039b\u03ac\u03b8\u03b7<\/h2>\n<ul>\n<li><strong>\u0395\u03bd\u03bf\u03c7\u03bb\u03b7\u03c4\u03b9\u03ba\u03ae \u03c0\u03c4\u03ce\u03c3\u03b7:<\/strong> \u03a3\u03c5\u03c7\u03bd\u03ac \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03c0\u03cc\u03b6\u03b5\u03c5\u03be\u03b7\u03c2 (Im) \u03c0\u03bf\u03bb\u03cd \u03c7\u03b1\u03bc\u03b7\u03bb\u03ac \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03b1 \u03b5\u03b9\u03c3\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b7\u03c4\u03ae\u03c1\u03b1. \u039c\u03b5\u03c4\u03b1\u03b2\u03b5\u03af\u03c4\u03b5 \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ae \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b9\u03bd\u03b7\u03c4\u03ae\u03c1\u03b1 \u03ae \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03cc\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u0386\u03bc\u03b5\u03c3\u03b7\u03c2.<\/li>\n<li><strong>\u03a5\u03c0\u03b5\u03c1\u03b8\u03ad\u03c1\u03bc\u03b1\u03bd\u03c3\u03b7:<\/strong> \u0395\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03b7 \u03c1\u03bf\u03c0\u03ae \u03c4\u03c9\u03bd \u03b1\u03ba\u03c1\u03bf\u03b4\u03b5\u03ba\u03c4\u03ce\u03bd. \u039f\u03b9 \u03c7\u03b1\u03bb\u03b1\u03c1\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 #1 \u03b1\u03b9\u03c4\u03af\u03b1 \u03b1\u03c3\u03c4\u03bf\u03c7\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 MCCB.<\/li>\n<li><strong>\u039f \u0391\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03c2 \u0394\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u0394\u03b5\u03bd \u0395\u03c0\u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9:<\/strong> \u039f \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u201cTrip\u201d (\u03ba\u03ad\u03bd\u03c4\u03c1\u03bf). \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03b9\u03ad\u03c3\u03b5\u03c4\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac \u03c4\u03b7 \u03bb\u03b1\u03b2\u03ae \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u201cOFF\u201d (\u03b5\u03c0\u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac) \u03c0\u03c1\u03b9\u03bd \u03c4\u03b7\u03bd \u03b1\u03bb\u03bb\u03ac\u03be\u03b5\u03c4\u03b5 \u03c3\u03b5 \u201cON\u201d.<\/li>\n<li><strong>\u0392\u03bf\u03c5\u03b7\u03c4\u03cc\u03c2:<\/strong> \u0388\u03bd\u03b1\u03c2 \u03b5\u03bb\u03b1\u03c6\u03c1\u03cd\u03c2 \u03b2\u03cc\u03bc\u03b2\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c6\u03c5\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03cc\u03c2 \u03b3\u03b9\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b1 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03b1, \u03b1\u03bb\u03bb\u03ac \u03ad\u03bd\u03b1\u03c2 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c2 \u03b2\u03cc\u03bc\u03b2\u03bf\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c5\u03c0\u03bf\u03b4\u03b7\u03bb\u03ce\u03bd\u03b5\u03b9 \u03c7\u03b1\u03bb\u03b1\u03c1\u03ad\u03c2 \u03b5\u03bb\u03b1\u03c3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ae \u03b5\u03c0\u03b1\u03c6\u03ad\u03c2. \u0394\u03b5\u03af\u03c4\u03b5 \u03c4\u03bf\u03bd <a href=\"https:\/\/test.viox.com\/el\/why-is-my-circuit-breaker-making-a-buzzing-sound-an-engineering-diagnostic-guide\/\">\u0394\u03b9\u03b1\u03b3\u03bd\u03c9\u03c3\u03c4\u03b9\u03ba\u03cc \u039f\u03b4\u03b7\u03b3\u03cc \u03b3\u03b9\u03b1 \u0391\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03c5\u03c2 \u0394\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u0392\u03bf\u03bc\u03b2\u03bf\u03cd\u03bd<\/a>.<\/li>\n<\/ul>\n<h2>\u03a3\u03a5\u03a7\u039d\u0388\u03a3 \u0395\u03a1\u03a9\u03a4\u0389\u03a3\u0395\u0399\u03a3<\/h2>\n<p><strong>\u0395: \u039c\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c9 \u03ad\u03bd\u03b1\u03bd MCCB AC \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 DC;<\/strong><br \/>\n\u0391: \u0393\u03b5\u03bd\u03b9\u03ba\u03ac, \u03cc\u03c7\u03b9. \u03a4\u03b1 \u03c4\u03cc\u03be\u03b1 DC \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf \u03bd\u03b1 \u03c3\u03b2\u03ae\u03c3\u03bf\u03c5\u03bd. \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd MCCB \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03b7\u03bc\u03ad\u03bd\u03bf \u03b3\u03b9\u03b1 DC \u03ae \u03bd\u03b1 \u03b5\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03cd\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 DC \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ae \u03b3\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf. \u0394\u03b5\u03af\u03c4\u03b5 <a href=\"https:\/\/test.viox.com\/el\/dc-vs-ac-circuit-breakers-essential-differences-for-electrical-safety\/\">\u0391\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03b9 \u0394\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2 DC \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 AC<\/a>.<\/p>\n<p><strong>\u0395: \u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd MCCB 3P \u03ba\u03b1\u03b9 4P;<\/strong><br \/>\n\u0391: \u039f 3P \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 (L1, L2, L3). \u039f 4P \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03bf\u03c5\u03b4\u03ad\u03c4\u03b5\u03c1\u03bf \u03b1\u03b3\u03c9\u03b3\u03cc, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b5\u03ac\u03bd \u03bf \u03bf\u03c5\u03b4\u03ad\u03c4\u03b5\u03c1\u03bf\u03c2 \u03b4\u03b9\u03b1\u03bd\u03ad\u03bc\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b1\u03bc\u03ad\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c8\u03b7\u03bb\u03ac \u03b1\u03c1\u03bc\u03bf\u03bd\u03b9\u03ba\u03ac \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03b1.<\/p>\n<p><strong>\u0395: \u03a0\u03ce\u03c2 \u03bc\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03c9 \u03ad\u03bd\u03b1\u03bd MCCB;<\/strong><br \/>\n\u0391: \u03a4\u03bf \u03ba\u03bf\u03c5\u03bc\u03c0\u03af \u201cTest\u201d \u03b5\u03bb\u03ad\u03b3\u03c7\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03cc \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03cd\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae\/\u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1, \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c3\u03c4\u03b5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03b5\u03cd\u03bf\u03c5\u03c3\u03b1\u03c2 \u03ad\u03b3\u03c7\u03c5\u03c3\u03b7\u03c2. \u0394\u03b9\u03b1\u03b2\u03ac\u03c3\u03c4\u03b5 <a href=\"https:\/\/test.viox.com\/el\/how-to-really-test-mccb-test-button-lie\/\">\u03a0\u03ce\u03c2 \u03bd\u03b1 \u0394\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03b5\u03c4\u03b5 \u03a0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03ad\u03bd\u03b1\u03bd MCCB<\/a>.<\/p>\n<p><strong>\u0395: \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c9 \u03ad\u03bd\u03b1\u03bd MCCB \u03ae \u03ad\u03bd\u03b1\u03bd ICCB;<\/strong><br \/>\n\u0391: \u039f\u03b9 ICCB (\u0391\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03b9 \u0394\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b5\u03c2 \u039c\u03bf\u03bd\u03c9\u03bc\u03ad\u03bd\u03bf\u03c5 \u039a\u03b5\u03bb\u03cd\u03c6\u03bf\u03c5\u03c2) \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b3\u03b9\u03b1 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03b1 (\u03ad\u03c9\u03c2 4000A) \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03b2\u03c1\u03b1\u03c7\u03c5\u03c0\u03c1\u03cc\u03b8\u03b5\u03c3\u03bc\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 (Icw) \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03c4\u03c5\u03c0\u03b9\u03ba\u03bf\u03cd\u03c2 MCCB. \u0394\u03b5\u03af\u03c4\u03b5 \u03c4\u03bf\u03bd <a href=\"https:\/\/test.viox.com\/el\/mccb-vs-iccb-comprehensive-guide\/\">\u039f\u03b4\u03b7\u03b3\u03cc MCCB \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 ICCB<\/a>.<\/p>\n<p><strong>\u0395: \u03a0\u03cc\u03c3\u03bf \u03c3\u03c5\u03c7\u03bd\u03ac \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03bd\u03c4\u03b7\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1 MCCB;<\/strong><br \/>\n\u0391: \u0395\u03bd\u03ce \u03bf\u03b9 MCCB \u03b5\u03af\u03bd\u03b1\u03b9 \u201c\u03c7\u03c9\u03c1\u03af\u03c2 \u03c3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7\u201d \u03c3\u03b5 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 ACB, \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03b8\u03b5\u03c9\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03b5\u03c4\u03b7\u03c3\u03af\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b8\u03b5\u03c1\u03bc\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ad\u03c2 \u03c3\u03b1\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03af\u03c7\u03bd\u03b5\u03c5\u03c3\u03b7 \u03c7\u03b1\u03bb\u03b1\u03c1\u03ce\u03bd \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03c9\u03bd.<\/p>\n<h2>\u0392\u03b1\u03c3\u03b9\u03ba\u03ac \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1<\/h2>\n<ul>\n<li><strong>\u03a0\u03c1\u03ce\u03c4\u03b1 \u03b7 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1:<\/strong> \u039d\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03c4\u03b5 \u03c0\u03ac\u03bd\u03c4\u03b1 \u03ad\u03bd\u03b1\u03bd MCCB \u03bc\u03b5 <strong>Icu<\/strong> \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c0\u03b9\u03b8\u03b1\u03bd\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03bf\u03c2 (PSCC) \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2.<\/li>\n<li><strong>\u039c\u03b5\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ae \u0391\u03c0\u03cc\u03b4\u03b5\u03b9\u03be\u03b7:<\/strong> \u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03c1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b5\u03c2 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf\u03c5\u03c2 \u03c0\u03af\u03bd\u03b1\u03ba\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c8\u03b5\u03c4\u03b5 \u03bc\u03b5\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03c3\u03c5\u03bd\u03c4\u03bf\u03bd\u03b9\u03c3\u03bc\u03cc.<\/li>\n<li><strong>\u03a4\u03bf \u03a0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd \u0388\u03c7\u03b5\u03b9 \u03a3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1:<\/strong> \u039c\u03b7\u03bd \u03b1\u03b3\u03bd\u03bf\u03b5\u03af\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03c5\u03c0\u03bf\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c5\u03c8\u03bf\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5, \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03bf \u03b4\u03b9\u03b1\u03ba\u03cc\u03c0\u03c4\u03b7\u03c2 \u03c3\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af \u03c0\u03c1\u03cc\u03c9\u03c1\u03b1.<\/li>\n<li><strong>\u03a3\u03c5\u03bd\u03c4\u03bf\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2:<\/strong> \u0392\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03bf \u03ba\u03cd\u03c1\u03b9\u03bf\u03c2 MCCB \u03c3\u03b1\u03c2 \u03ba\u03b1\u03b8\u03c5\u03c3\u03c4\u03b5\u03c1\u03b5\u03af \u03c4\u03b7\u03bd \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03ce\u03c3\u03c4\u03b5 \u03bf\u03b9 \u03ba\u03b1\u03c4\u03ac\u03bd\u03c4\u03b7 MCB \u03bd\u03b1 \u03ba\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03bf\u03c5\u03bd \u03bc\u03b9\u03ba\u03c1\u03ac \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03b1 (\u0395\u03c0\u03b9\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1).<\/li>\n<\/ul>\n<p>\u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c9\u03c3\u03c4\u03bf\u03cd MCCB \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03af\u03b1 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1\u03c2, \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2. \u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c5\u03c4\u03cc\u03bd \u03c4\u03bf\u03bd \u03bf\u03b4\u03b7\u03b3\u03cc \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c1\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b1 <strong>IEC 60947-2<\/strong> \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1, \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03b9\u03c3\u03c7\u03c5\u03c1\u03ae \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03b5\u03b9 \u03c4\u03cc\u03c3\u03bf \u03c4\u03bf \u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b9\u03ba\u03cc \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 2247.55px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 2247.55px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Selecting the right Molded Case Circuit Breaker (MCCB) is a critical engineering decision that directly impacts the safety, reliability, and compliance of your electrical distribution system. Unlike standard residential breakers, MCCBs are designed for high-power industrial and commercial applications, offering adjustable protection settings and high breaking capacities in accordance with IEC 60947-2. An incorrectly selected [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16692,"comment_status":"closed","ping_status":"open","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-16685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/posts\/16685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/comments?post=16685"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/posts\/16685\/revisions"}],"predecessor-version":[{"id":21362,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/posts\/16685\/revisions\/21362"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/media\/16692"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/media?parent=16685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/categories?post=16685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/el\/wp-json\/wp\/v2\/tags?post=16685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}