{"id":18503,"date":"2025-07-21T01:08:29","date_gmt":"2025-07-20T17:08:29","guid":{"rendered":"https:\/\/viox.com\/?p=18503"},"modified":"2025-07-21T01:08:32","modified_gmt":"2025-07-20T17:08:32","slug":"ul-489-vs-ul-1077","status":"publish","type":"post","link":"https:\/\/test.viox.com\/km\/ul-489-vs-ul-1077\/","title":{"rendered":"UL 489 \u1791\u179b\u17cb\u1793\u17b9\u1784 UL 1077\u17d6 \u1798\u1782\u17d2\u1782\u17bb\u1791\u17d2\u1791\u17c1\u179f\u1780\u17cd\u1796\u17c1\u1789\u179b\u17c1\u1789\u178a\u17be\u1798\u17d2\u1794\u17b8\u179f\u17d2\u179c\u17c2\u1784\u1799\u179b\u17cb\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b8\u179f\u1793\u17b8"},"content":{"rendered":"<div class=\"product-intro\"><strong>\u1785\u1798\u17d2\u179b\u17be\u1799\u1795\u17d2\u1791\u17b6\u179b\u17cb\u17d6<\/strong> UL 489 \u1782\u17d2\u179a\u1794\u178a\u178e\u17d2\u178a\u1794\u17cb\u179b\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17d2\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 \u1793\u17b7\u1784\u1780\u17bb\u1784\u178f\u17b6\u1780\u17cb\u178a\u17c2\u179b\u1794\u17d2\u179a\u17be\u1787\u17b6\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u1785\u1798\u17d2\u1794\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7 \u1793\u17b7\u1784\u1780\u17d2\u178f\u17b6\u179a\u1794\u17d2\u178f\u17bc\u179a \u1781\u178e\u17c8\u178a\u17c2\u179b UL 1077 \u1782\u17d2\u179a\u1794\u178a\u178e\u17d2\u178a\u1794\u17cb\u179b\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798\u178a\u17c2\u179b\u1794\u17d2\u179a\u17be\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1780\u1798\u17d2\u179a\u17b7\u178f\u179f\u1798\u17b6\u179f\u1797\u17b6\u1782\u17d4 \u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u179f\u17c6\u1781\u17b6\u1793\u17cb\u1782\u17ba\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1795\u17d2\u178f\u179b\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u1794\u178b\u1798 \u1781\u178e\u17c8\u1796\u17c1\u179b\u178a\u17c2\u179b\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u1795\u17d2\u178f\u179b\u17cb\u1793\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb\u1794\u1793\u17d2\u179f\u17c6\u17d4 \u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u17a2\u17c6\u1796\u17b8\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a UL \u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb\u1791\u17b6\u17c6\u1784\u1796\u17b8\u179a\u1793\u17c1\u17c7\u1782\u17ba\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a2\u17d2\u1793\u1780\u1798\u17c9\u17c5\u1780\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u179c\u17b7\u179f\u17d2\u179c\u1780\u179a \u1793\u17b7\u1784\u17a2\u17d2\u1793\u1780\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u1780\u1793\u17d2\u179b\u17c2\u1784\u178a\u17c2\u179b\u178f\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u179a\u1794\u179f\u17cb\u1796\u17bd\u1780\u1782\u17c1 \u1793\u17b7\u1784\u1792\u17b6\u1793\u17b6\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u179b\u17c1\u1781\u1780\u17bc\u178a\u17d4<img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-18763\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/UL.webp\" alt=\"UL\" width=\"400\" height=\"400\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/UL.webp 400w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/UL-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/UL-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/UL-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/UL-100x100.webp 100w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<h2>\u178f\u17be\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a UL 489 \u1793\u17b7\u1784 UL 1077 \u1787\u17b6\u17a2\u17d2\u179c\u17b8?<\/h2>\n<h3>\u1793\u17b7\u1799\u1798\u1793\u17d0\u1799\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a UL 489<\/h3>\n<p><a href=\"https:\/\/www.ul.com\/services\/circuit-breaker-and-supplementary-protector-services\" rel=\"nofollow noopener\" target=\"_blank\">UL 489<\/a> \u1782\u17ba\u1787\u17b6\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb <a href=\"https:\/\/test.viox.com\/km\/mccb\/\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u179f\u17c0\u1782\u17d2\u179c\u17b8 Molded-Case<\/a>, Molded-Case Switches, \u1793\u17b7\u1784 Circuit-Breaker Enclosures\u17d4 \u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1793\u17c1\u17c7\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b8\u179f\u1793\u17b8\u1785\u1798\u17d2\u1794\u1784\u178a\u17c2\u179b\u17a2\u17d2\u1793\u1780\u1793\u17b9\u1784\u179a\u1780\u1783\u17be\u1789\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u1780\u17bb\u1784\u178f\u17b6\u1780\u17cb \u1793\u17b7\u1784\u1798\u1787\u17d2\u1788\u1798\u178e\u17d2\u178c\u179b\u1794\u1789\u17d2\u1787\u17b6\u1798\u17c9\u17bc\u1791\u17d0\u179a\u17d4<\/p>\n<p><strong>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7\u17d6<\/strong><\/p>\n<ul>\n<li>\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17d2\u1791\u17c7<\/li>\n<li>\u1780\u17bb\u1784\u178f\u17b6\u1780\u17cb\u1785\u17c2\u1780\u1785\u17b6\u1799<\/li>\n<li>\u1798\u1787\u17d2\u1788\u1798\u178e\u17d2\u178c\u179b\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u1798\u17c9\u17bc\u1791\u17d0\u179a<\/li>\n<li>\u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u1794\u1793\u17d2\u1791\u17c7<\/li>\n<li>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1785\u17d2\u179a\u1780\u1785\u17bc\u179b\u179f\u17c1\u179c\u17b6\u1780\u1798\u17d2\u1798<\/li>\n<\/ul>\n<h3>\u1793\u17b7\u1799\u1798\u1793\u17d0\u1799\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a UL 1077<\/h3>\n<p>UL 1077 \u1782\u17ba\u1787\u17b6\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u1780\u17d2\u1781\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1791\u17b6\u17c6\u1784\u1793\u17c1\u17c7\u1795\u17d2\u178f\u179b\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u1780\u17d2\u1781\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u1793\u17b7\u1784\u1798\u17b7\u1793\u1798\u17b6\u1793\u1794\u17c6\u178e\u1784\u1792\u17d2\u179c\u17be\u1787\u17b6\u1798\u1792\u17d2\u1799\u17c4\u1794\u17b6\u1799\u1780\u17b6\u179a\u1796\u17b6\u179a\u178f\u17c2\u1798\u17bd\u1799\u1782\u178f\u17cb\u17d4<\/p>\n<p><strong>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7\u17d6<\/strong><\/p>\n<ul>\n<li>\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1798\u17c9\u17b6\u179f\u17ca\u17b8\u1793<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb\u1794\u1793\u17d2\u179f\u17c6\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1795\u17d2\u1791\u17b6\u17c6\u1784\u1794\u1789\u17d2\u1787\u17b6<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1780\u17c6\u17a0\u17bb\u179f\u1780\u1798\u17d2\u179a\u17b7\u178f\u17a7\u1794\u1780\u179a\u178e\u17cd<\/li>\n<li>\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1796\u1793\u17d2\u179b\u17ba<\/li>\n<\/ul>\n<h2>\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7\u179a\u179c\u17b6\u1784 UL 489 \u1793\u17b7\u1784 UL 1077<\/h2>\n<table>\n<tbody>\n<tr>\n<th>\u179b\u1780\u17d2\u1781\u178e\u17c8<\/th>\n<th>UL 489<\/th>\n<th>UL 1077<\/th>\n<\/tr>\n<tr>\n<td><strong>\u1780\u17b6\u179a\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u1794\u178b\u1798<\/strong><\/td>\n<td>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7<\/td>\n<td>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1791\u17b8\u178f\u17b6\u17c6\u1784\u178a\u17c6\u17a1\u17be\u1784<\/strong><\/td>\n<td>\u1794\u1793\u17d2\u1791\u17c7\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u1780\u17bb\u1784\u178f\u17b6\u1780\u17cb<\/td>\n<td>\u1793\u17c5\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1780\u1798\u17d2\u179a\u17b7\u178f\u1780\u17b6\u179a\u1796\u17b6\u179a<\/strong><\/td>\n<td>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179f\u17b6\u1781\u17b6\u1794\u178b\u1798<\/td>\n<td>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb \/ \u17a7\u1794\u1780\u179a\u178e\u17cd<\/td>\n<\/tr>\n<tr>\n<td><strong>\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793<\/strong><\/td>\n<td>\u1781\u17d2\u1796\u179f\u17cb (\u179a\u17a0\u17bc\u178f\u178a\u179b\u17cb 200kA)<\/td>\n<td>\u1791\u17b6\u1794 (\u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6 5-10kA)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u179b\u17c1\u1781\u1780\u17bc\u178a\u17a2\u1793\u17bb\u179b\u17c4\u1798<\/strong><\/td>\n<td>\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u1798\u17b6\u178f\u17d2\u179a\u17b6 \u17e2\u17e4\u17e0 \u1782.\u1787.\u1794<\/td>\n<td>\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1794\u17d2\u179a\u17be\u1787\u17b6\u1798\u17bd\u1799\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a UL 489<\/td>\n<\/tr>\n<tr>\n<td><strong>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u1798\u17d2\u1782\u17b6\u179b\u17cb<\/strong><\/td>\n<td>&#8220;<a href=\"https:\/\/test.viox.com\/km\/mcb\/\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u179f\u17c0\u1782\u17d2\u179c\u17b8<\/a>&#8220;<\/td>\n<td>&quot;\u17a2\u17d2\u1793\u1780\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798&quot;<\/td>\n<\/tr>\n<tr>\n<td><strong>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u17b6\u1780\u179b\u17d2\u1794\u1784<\/strong><\/td>\n<td>\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1797\u17b6\u1796\u1792\u1793\u17cb\u1799\u17c9\u17b6\u1784\u1791\u17bc\u179b\u17c6\u1791\u17bc\u179b\u17b6\u1799<\/td>\n<td>\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1794\u1785\u17d2\u1785\u17bb\u1794\u17d2\u1794\u1793\u17d2\u1793\u17a2\u178f\u17d2\u179a\u17b6<\/strong><\/td>\n<td>15A \u178a\u179b\u17cb 6000A<\/td>\n<td>\u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6\u1785\u17b6\u1794\u17cb\u1796\u17b8 0.5A \u178a\u179b\u17cb 63A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u1796\u17b8\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u1794\u1785\u17d2\u1785\u17c1\u1780\u1791\u17c1\u179f<\/h2>\n<h3>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u17c6\u178e\u1784\u17cb \u1793\u17b7\u1784\u1780\u17b6\u179a\u179a\u1785\u1793\u17b6<\/h3>\n<p><strong>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u179f\u17c0\u1782\u17d2\u179c\u17b8 UL 489\u17d6<\/strong><\/p>\n<ul>\n<li>\u179f\u17c6\u178e\u1784\u17cb\u179a\u17b9\u1784\u1798\u17b6\u17c6\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u178f\u1796\u17d2\u179c\u1780\u17b7\u1785\u17d2\u1785\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/li>\n<li>\u17a2\u1784\u17d2\u1782\u1787\u17c6\u1793\u17bb\u17c6\u1787\u1798\u17d2\u179a\u17c7\u1796\u1793\u17d2\u179b\u178f\u17cb\u1792\u17d2\u1793\u17bc\u1787\u17b6\u1785\u17d2\u179a\u17be\u1793\u17d4<\/li>\n<li>\u1799\u1793\u17d2\u178f\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178a\u17c6\u178e\u17be\u179a\u178f\u17b6\u1798\u1780\u17c6\u178a\u17c5 \u1793\u17b7\u1784\u1798\u17c9\u17b6\u1789\u17c1\u1791\u17b7\u1785<\/li>\n<li>\u179a\u1785\u1793\u17b6\u17a1\u17be\u1784\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u178a\u17c4\u1799\u178a\u17c3\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb<\/li>\n<li>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1792\u1793\u17cb\u1793\u17b9\u1784\u1798\u17c1\u1780\u17b6\u1793\u17b7\u1785\u1781\u17d2\u1796\u179f\u17cb\u17d4<\/li>\n<\/ul>\n<p><strong>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798 UL 1077\u17d6<\/strong><\/p>\n<ul>\n<li>\u179f\u17c6\u178e\u1784\u17cb\u179f\u17b6\u1798\u1789\u17d2\u1789\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb<\/li>\n<li>\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u1796\u1793\u17d2\u179b\u178f\u17cb\u1797\u17d2\u179b\u17be\u1784\u178f\u17c2\u1798\u17bd\u1799<\/li>\n<li>\u1787\u17b6\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb\u1799\u1793\u17d2\u178f\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178a\u17c6\u178e\u17be\u179a\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u178f\u17c2\u1780\u17c6\u178a\u17c5<\/li>\n<li>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u178a\u17c4\u1799\u178a\u17c3\u1798\u17b6\u1793\u1780\u17c6\u178e\u178f\u17cb<\/li>\n<li>\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1792\u1793\u17cb\u1791\u17d2\u179a\u17b6\u17c6\u1798\u17c1\u1780\u17b6\u1793\u17b7\u1785\u1791\u17b6\u1794<\/li>\n<\/ul>\n<h3>\u179b\u1780\u17d2\u1781\u178e\u17c8\u1793\u17c3\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f<\/h3>\n<p><strong>\u1780\u17b6\u179a\u1794\u17d2\u179a\u17c0\u1794\u1792\u17c0\u1794\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793\u17d6<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<th>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8<\/th>\n<th>\u1787\u17bd\u179a\u1792\u1798\u17d2\u1798\u178f\u17b6 UL 489<\/th>\n<th>\u1787\u17bd\u179a\u1792\u1798\u17d2\u1798\u178f\u17b6 UL 1077<\/th>\n<\/tr>\n<tr>\n<td><strong>\u179b\u17c6\u1793\u17c5\u178a\u17d2\u178b\u17b6\u1793<\/strong><\/td>\n<td>10kA - 22kA<\/td>\n<td>5kA - 10kA<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1796\u17b6\u178e\u17b7\u1787\u17d2\u1787\u1780\u1798\u17d2\u1798<\/strong><\/td>\n<td>25kA - 65kA<\/td>\n<td>5kA - 10kA<\/td>\n<\/tr>\n<tr>\n<td><strong>\u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1798\u17d2\u1798<\/strong><\/td>\n<td>35kA - 200kA<\/td>\n<td>\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6 10kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p><strong>\u26a0\ufe0f \u1780\u17b6\u179a\u1796\u17d2\u179a\u1798\u17b6\u1793\u17a2\u17c6\u1796\u17b8\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u17d6<\/strong> \u1780\u17bb\u17c6\u1787\u17c6\u1793\u17bd\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798\u17d4 \u1793\u17c1\u17c7\u1794\u17c6\u1796\u17b6\u1793\u179b\u17c1\u1781\u1780\u17bc\u178a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u1793\u17b7\u1784\u1794\u1784\u17d2\u1780\u17be\u178f\u1782\u17d2\u179a\u17c4\u17c7\u1790\u17d2\u1793\u17b6\u1780\u17cb\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u1792\u17d2\u1784\u1793\u17cb\u1792\u17d2\u1784\u179a\u17d4<\/p><\/blockquote>\n<h2>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8 \u1793\u17b7\u1784\u1780\u179a\u178e\u17b8\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb<\/h2>\n<h3>\u1796\u17c1\u179b\u178e\u17b6\u178f\u17d2\u179a\u17bc\u179c\u1794\u17d2\u179a\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u179f\u17c0\u1782\u17d2\u179c\u17b8 UL 489<\/h3>\n<p><strong>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1794\u178b\u1798\u17d6<\/strong><\/p>\n<ul>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c1\u179c\u17b6\u1780\u1798\u17d2\u1798\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8 feeder<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179f\u17b6\u1781\u17b6\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1780\u17b6\u179a\u1785\u17b6\u1794\u17cb\u1795\u17d2\u178f\u17be\u1798\u1798\u17c9\u17bc\u1791\u17d0\u179a<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1791\u17c7\u1794\u17c6\u1797\u17d2\u179b\u17ba<\/li>\n<\/ul>\n<p><strong>\u1780\u179a\u178e\u17b8\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u17d6<\/strong><\/p>\n<ul>\n<li>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u1798\u17c1 200A \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7\u179b\u17c6\u1793\u17c5\u178a\u17d2\u178b\u17b6\u1793<\/li>\n<li>100A feeder \u1791\u17c5\u1794\u1793\u17d2\u1791\u17c7\u179a\u1784<\/li>\n<li>\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179f\u17b6\u1781\u17b6 20A \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1794\u1784\u17d2\u1780\u17b6\u1793\u17cb\u178a\u17c3<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1798\u17c9\u17bc\u1791\u17d0\u179a 30A<\/li>\n<li>\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1794\u17c6\u1797\u17d2\u179b\u17ba 277V<\/li>\n<\/ul>\n<h3>\u1796\u17c1\u179b\u178e\u17b6\u178f\u17d2\u179a\u17bc\u179c\u1794\u17d2\u179a\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798 UL 1077<\/h3>\n<p><strong>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1794\u178b\u1798\u17d6<\/strong><\/p>\n<ul>\n<li>\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb\u1794\u1793\u17d2\u179f\u17c6\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1798\u17c9\u17b6\u179f\u17ca\u17b8\u1793<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u1796\u1793\u17d2\u179b\u17ba<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a7\u1794\u1780\u179a\u178e\u17cd\u17a2\u17c1\u17a1\u17b7\u1785\u178f\u17d2\u179a\u17bc\u1793\u17b7\u1780<\/li>\n<\/ul>\n<p><strong>\u1780\u179a\u178e\u17b8\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u17d6<\/strong><\/p>\n<ul>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a 5A \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1794\u1789\u17d2\u1785\u17bc\u179b PLC<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a 2A \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1795\u17d2\u179b\u17b6\u179f\u17cb\u1794\u17d2\u178f\u17bc\u179a\u179c\u178f\u17d2\u1790\u17bb\u1794\u1789\u17d2\u1787\u17b6<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a 10A \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u178a\u17d2\u179a\u17b6\u1799\u1794\u17d2\u179a\u17c1\u1780\u1784\u17cb\u17a2\u1790\u17c1\u179a<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a 15A \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1797\u17d2\u179b\u17ba<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a 1A \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1798\u17c9\u17bc\u178c\u17bb\u179b\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u17a2\u17c1\u17a1\u17b7\u1785\u178f\u17d2\u179a\u17bc\u1793\u17b7\u1785<\/li>\n<\/ul>\n<h2>\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f \u1793\u17b7\u1784\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u179b\u17d2\u17a2\u1794\u17c6\u1795\u17bb\u178f<\/h2>\n<h3>\u1780\u17b6\u179a\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d4<\/h3>\n<p><strong>\u1794\u17d2\u179a\u17be UL 489 \u1793\u17c5\u1796\u17c1\u179b\u17d6<\/strong><\/p>\n<ul>\n<li>\u17a2\u17d2\u1793\u1780\u178f\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u1794\u178b\u1798<\/li>\n<li>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8 feeder \u17ac\u179f\u17b6\u1781\u17b6<\/li>\n<li>\u1794\u17c6\u1796\u17c1\u1789\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179a\u1794\u179f\u17cb \u1782.\u1787.\u1794 \u1798\u17b6\u178f\u17d2\u179a\u17b6 \u17e2\u17e4\u17e0<\/li>\n<li>\u1791\u17b6\u1798\u1791\u17b6\u179a\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793\u1781\u17d2\u1796\u179f\u17cb\u17d4<\/li>\n<\/ul>\n<p><strong>\u1794\u17d2\u179a\u17be UL 1077 \u1793\u17c5\u1796\u17c1\u179b\u17d6<\/strong><\/p>\n<ul>\n<li>\u17a2\u17d2\u1793\u1780\u178f\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798<\/li>\n<li>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799<\/li>\n<li>\u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798 UL 489 \u179a\u17bd\u1785\u17a0\u17be\u1799<\/li>\n<li>\u1791\u17b6\u1798\u1791\u17b6\u179a\u178a\u17c6\u178e\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1784\u17d2\u179a\u17bd\u1798<\/li>\n<\/ul>\n<h3>\u1782\u1793\u17d2\u179b\u17b9\u17c7\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u17a2\u17d2\u1793\u1780\u1787\u17c6\u1793\u17b6\u1789<\/h3>\n<blockquote><p><strong>\ud83d\udca1 \u178a\u17c6\u1794\u17bc\u1793\u17d2\u1798\u17b6\u1793\u17a2\u17d2\u1793\u1780\u1787\u17c6\u1793\u17b6\u1789\u17d6<\/strong> \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1787\u17b6\u1793\u17b7\u1785\u17d2\u1785\u1790\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u178a\u17c6\u17a1\u17be\u1784\u1793\u17c5\u1781\u17b6\u1784\u1780\u17d2\u179a\u17c4\u1798\u1793\u17c3\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a UL 489 \u178a\u17c2\u179b\u179f\u1798\u179f\u17d2\u179a\u1794\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u179f\u17d2\u1790\u17b7\u178f\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1787\u17bd\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1793\u17c3\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1781\u17b6\u1784\u179b\u17be\u17d4<\/p><\/blockquote>\n<p><strong>\u179b\u1780\u17d2\u1781\u178e\u17c8\u1794\u1785\u17d2\u1785\u17c1\u1780\u1791\u17c1\u179f\u178a\u17c2\u179b\u178f\u17d2\u179a\u17bc\u179c\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u17d6<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<th>\u1780\u178f\u17d2\u178f\u17b6<\/th>\n<th>UL 489 \u1780\u17b6\u179a\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6<\/th>\n<th>\u1780\u17b6\u179a\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6 UL 1077<\/th>\n<\/tr>\n<tr>\n<td><strong>\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u1794\u1785\u17d2\u1785\u17bb\u1794\u17d2\u1794\u1793\u17d2\u1793<\/strong><\/td>\n<td>\u1794\u1793\u17d2\u1791\u17bb\u1780\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784 \u1793\u17b7\u1784\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u1794\u179f\u17cb conductor<\/td>\n<td>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u17a7\u1794\u1780\u179a\u178e\u17cd\u178a\u17c2\u179b\u178f\u17d2\u179a\u17bc\u179c\u1782\u17d2\u1793\u17b6\u17d4<\/td>\n<\/tr>\n<tr>\n<td><strong>\u179c\u17c9\u17bb\u179b\u178e\u17b6\u178f\u17cb\u1790\u17d2\u1793\u17b6\u1780\u17cb<\/strong><\/td>\n<td>\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784\u179c\u17c9\u17bb\u179b\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792<\/td>\n<td>\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1780\u17b6\u179a\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784\u179c\u17c9\u17bb\u179b<\/td>\n<\/tr>\n<tr>\n<td><strong>\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793<\/strong><\/td>\n<td>\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1798\u17b6\u1793\u1780\u17c6\u17a0\u17bb\u179f<\/td>\n<td>\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd\u1792\u1793\u17cb\u1793\u17b9\u1784\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3<\/td>\n<\/tr>\n<tr>\n<td><strong>\u179b\u1780\u17d2\u1781\u178e\u17c8\u1796\u17b7\u179f\u17c1\u179f\u1793\u17c3\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178a\u17c6\u178e\u17be\u179a<\/strong><\/td>\n<td>\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784\u1794\u17d2\u179a\u1797\u17c1\u1791\u1794\u1793\u17d2\u1791\u17bb\u1780 \u1793\u17b7\u1784\u1785\u179a\u1793\u17d2\u178f\u1785\u17b6\u1794\u17cb\u1795\u17d2\u178f\u17be\u1798<\/td>\n<td>\u1780\u17b6\u179a\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb<\/td>\n<\/tr>\n<tr>\n<td><strong>\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793<\/strong><\/td>\n<td>\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u1794\u179a\u17b7\u1799\u17b6\u1780\u17b6\u179f\u1794\u1793\u17d2\u1791\u17c7<\/td>\n<td>\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u17a7\u1794\u1780\u179a\u178e\u17cd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"UL 489 \u1791\u179b\u17cb\u1793\u17b9\u1784 UL 1077 MCBs \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u17a2\u1782\u17d2\u1782\u17b8\u179f\u1793\u17b8\u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1798\u17d2\u1798 | c3controls\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/qEwP_F1IL8Q?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<h2>\u179b\u17c1\u1781\u1780\u17bc\u178a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u1793\u17b7\u1784\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796<\/h2>\n<h3>\u1782\u17d4\u1787\u17d4\u178f\u1798\u17d2\u179a\u17bc\u179c<\/h3>\n<p><strong>\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798 UL 489\u17d6<\/strong><\/p>\n<ul>\n<li>\u178f\u17d2\u179a\u17bc\u179c\u200b\u1782\u17c4\u179a\u1796\u200b\u178f\u17b6\u1798\u200b\u1798\u17b6\u178f\u17d2\u179a\u17b6 \u17e2\u17e4\u17e0 \u1782.\u1787.\u1794<\/li>\n<li>\u1791\u17b6\u1798\u1791\u17b6\u179a\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1785\u179a\u1793\u17d2\u178f\u179b\u17be\u179f<\/li>\n<li>\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1785\u17bb\u17c7\u1794\u1789\u17d2\u1787\u17b8 \u1793\u17b7\u1784\u178a\u17b6\u1780\u17cb\u179f\u17d2\u179b\u17b6\u1780<\/li>\n<li>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u178f\u17b6\u1798\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u179a\u1794\u179f\u17cb\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f<\/li>\n<li>\u1780\u17b6\u179a\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u1787\u17b6\u1798\u17bd\u1799\u17a2\u17d2\u1793\u1780\u178a\u17b9\u1780\u1793\u17b6\u17c6<\/li>\n<\/ul>\n<p><strong>\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798 UL 1077\u17d6<\/strong><\/p>\n<ul>\n<li>\u1798\u17b7\u1793\u17a2\u17b6\u1785\u1787\u17b6\u1798\u1792\u17d2\u1799\u17c4\u1794\u17b6\u1799\u1780\u17b6\u179a\u1796\u17b6\u179a\u178f\u17c2\u1798\u17bd\u1799\u1782\u178f\u17cb<\/li>\n<li>\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1794\u17d2\u179a\u17be\u1787\u17b6\u1798\u17bd\u1799\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a UL 489<\/li>\n<li>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd<\/li>\n<li>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u1798\u17d2\u1782\u17b6\u179b\u17cb\u1793\u17b7\u1784\u179f\u17d2\u179b\u17b6\u1780<\/li>\n<li>\u1798\u17b7\u1793\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1791\u1791\u17bd\u179b\u179f\u17d2\u1782\u17b6\u179b\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179f\u17b6\u1781\u17b6<\/li>\n<\/ul>\n<h3>\u1780\u17b6\u179a\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u17a2\u17c6\u1796\u17b8\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796<\/h3>\n<blockquote><p><strong>\u26a0\ufe0f \u1780\u17b6\u179a\u1796\u17d2\u179a\u1798\u17b6\u1793\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7\u17d6<\/strong> \u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u1798\u17b7\u1793\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179f\u17b6\u1780\u179b\u17d2\u1794\u1784\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u179a\u17b7\u178f\u1794\u1785\u17d2\u1785\u17bb\u1794\u17d2\u1794\u1793\u17d2\u1793\u1780\u17c6\u17a0\u17bb\u179f\u178a\u17bc\u1785\u1782\u17d2\u1793\u17b6\u1793\u17b9\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1791\u17c1\u17d4 \u1780\u17b6\u179a\u1794\u17d2\u179a\u17be\u1796\u17bd\u1780\u179c\u17b6\u1798\u17b7\u1793\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17a2\u17b6\u1785\u1794\u178e\u17d2\u178f\u17b6\u179b\u17b1\u17d2\u1799\u1786\u17c1\u17c7 \u1781\u17bc\u1785\u1781\u17b6\u178f\u17a7\u1794\u1780\u179a\u178e\u17cd \u17ac\u179a\u1794\u17bd\u179f\u1795\u17d2\u1791\u17b6\u179b\u17cb\u1781\u17d2\u179b\u17bd\u1793\u17d4<\/p><\/blockquote>\n<p><strong>\u179c\u17b7\u1787\u17d2\u1787\u17b6\u1787\u17b8\u179c\u17c8\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u178f\u1798\u17d2\u179a\u17bc\u179c\u17d6<\/strong><\/p>\n<ul>\n<li>\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1791\u17b6\u17c6\u1784\u1796\u17b8\u179a\u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u178a\u17c4\u1799\u17a2\u17d2\u1793\u1780\u1787\u17c6\u1793\u17b6\u1789\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u178a\u17c2\u179b\u1798\u17b6\u1793\u179b\u1780\u17d2\u1781\u178e\u17c8\u179f\u1798\u17d2\u1794\u178f\u17d2\u178f\u17b7\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb<\/li>\n<li>\u1780\u17b6\u179a\u1780\u17c6\u178e\u178f\u17cb\u1780\u1798\u17d2\u179b\u17b6\u17c6\u1784\u1794\u1784\u17d2\u179c\u17b7\u179b\u1787\u17bb\u17c6\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u178f\u17b6\u1798<\/li>\n<li>\u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u1782\u17d2\u179a\u17c4\u17c7\u1790\u17d2\u1793\u17b6\u1780\u17cb\u1793\u17c3\u1796\u1793\u17d2\u179b\u17ba\u1797\u17d2\u179b\u17be\u1784<\/li>\n<li>\u1780\u17b6\u179a\u179f\u17b7\u1780\u17d2\u179f\u17b6\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u178e\u17c2\u1793\u17b6\u17c6\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u179f\u17d2\u1798\u17bb\u1782\u179f\u17d2\u1798\u17b6\u1789<\/li>\n<\/ul>\n<h2>\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784 \u1793\u17b7\u1784\u1790\u17c2\u1791\u17b6\u17c6<\/h2>\n<h3>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784 UL 489 \u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u179b\u17d2\u17a2\u1794\u17c6\u1795\u17bb\u178f<\/h3>\n<p><strong>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u1787\u17b6\u1787\u17c6\u17a0\u17b6\u1793 \u17d7 \u17d6<\/strong><\/p>\n<ol>\n<li><strong>\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1780\u17b6\u179a\u1794\u17b7\u1791\u17d6<\/strong> \u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb\u200b\u1790\u17b6\u200b\u1790\u17b6\u1798\u1796\u179b\u200b\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u200b\u178f\u17d2\u179a\u17bc\u179c\u200b\u1794\u17b6\u1793\u200b\u179a\u17c6\u179f\u17b6\u1799\u200b\u1790\u17b6\u1798\u1796\u179b \u1793\u17b7\u1784\u200b\u1794\u17b7\u1791<\/li>\n<li><strong>\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1797\u17b6\u1796\u178f\u17d2\u179a\u17bc\u179c\u1782\u17d2\u1793\u17b6\u17d6<\/strong> \u178f\u17d2\u179a\u17bc\u179c\u1794\u17d2\u179a\u17b6\u1780\u178a\u1790\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u178f\u17d2\u179a\u17bc\u179c\u1782\u17d2\u1793\u17b6\u1793\u17b9\u1784\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f\u1794\u1793\u17d2\u1791\u17c7 \u1793\u17b7\u1784\u179b\u1780\u17d2\u1781\u178e\u17c8\u1794\u1785\u17d2\u1785\u17c1\u1780\u1791\u17c1\u179f<\/li>\n<li><strong>\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb\u17d6<\/strong> \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1791\u17c6\u17a0\u17c6\u1781\u17d2\u179f\u17c2\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c 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\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u178a\u17c6\u17a1\u17be\u1784\u1799\u17c9\u17b6\u1784\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d4<\/li>\n<li><strong>\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u17a7\u1794\u1780\u179a\u178e\u17cd\u17d6<\/strong> \u178f\u17d2\u179a\u17bc\u179c\u1794\u17d2\u179a\u17b6\u1780\u178a\u1790\u17b6\u17a2\u17d2\u1793\u1780\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798\u178f\u17d2\u179a\u17bc\u179c\u1782\u17d2\u1793\u17b6\u1793\u17b9\u1784\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u17a7\u1794\u1780\u179a\u178e\u17cd<\/li>\n<li><strong>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u17d6<\/strong> \u178a\u17c6\u17a1\u17be\u1784\u178f\u17b6\u1798\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u179a\u1794\u179f\u17cb\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f<\/li>\n<li><strong>\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1780\u17b6\u179a\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u17d6<\/strong> \u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb\u200b\u1780\u17b6\u179a\u200b\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u200b\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u200b\u1787\u17b6\u1798\u17bd\u1799\u200b\u1793\u17b9\u1784\u200b\u1780\u17b6\u179a\u200b\u1780\u17b6\u179a\u1796\u17b6\u179a\u200b\u1781\u17b6\u1784\u200b\u179b\u17be<\/li>\n<li><strong>\u1798\u17bb\u1781\u1784\u17b6\u179a\u179f\u17b6\u1780\u179b\u17d2\u1794\u1784\u17d6<\/strong> \u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u17a7\u1794\u1780\u179a\u178e\u17cd<\/li>\n<\/ol>\n<h2>\u1780\u17b6\u179a\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6\u1791\u17bc\u1791\u17c5<\/h2>\n<h3>\u1780\u17b6\u179a\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6 UL 489<\/h3>\n<p><strong>\u1794\u1789\u17d2\u17a0\u17b6\u1791\u17bc\u1791\u17c5\u17d6<\/strong><\/p>\n<ul>\n<li>\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793\u17d6 \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb\u179a\u179b\u17bb\u1784 \u17ac\u1795\u17d2\u1791\u17bb\u1780\u179b\u17be\u179f\u1791\u1798\u17d2\u1784\u1793\u17cb<\/li>\n<li>\u1793\u17b9\u1784\u1798\u17b7\u1793\u1780\u17c6\u178e\u178f\u17cb\u17a1\u17be\u1784\u179c\u17b7\u1789\u1791\u17c1\u17d6 \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1780\u17c6\u17a0\u17bb\u179f\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1787\u1798\u17d2\u179a\u17c7 \u17a0\u17be\u1799\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u1798\u17b7\u1793\u1781\u17bc\u1785\u1791\u17c1\u17d4<\/li>\n<li>\u1780\u17b6\u179a\u17a1\u17be\u1784\u1780\u17c6\u178a\u17c5\u1781\u17d2\u179b\u17b6\u17c6\u1784\u17d6 \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u179b\u1780\u17d2\u1781\u178e\u17c8\u1794\u1785\u17d2\u1785\u17c1\u1780\u1791\u17c1\u179f\u1793\u17c3\u1780\u1798\u17d2\u179b\u17b6\u17c6\u1784\u1794\u1784\u17d2\u179c\u17b7\u179b\u1787\u17bb\u17c6 \u1793\u17b7\u1784\u1791\u17c6\u17a0\u17c6\u179a\u1794\u179f\u17cb conductor<\/li>\n<li>\u17a7\u1794\u17d2\u1794\u178f\u17d2\u178f\u17b7\u17a0\u17c1\u178f\u17bb Arc flash\u17d6 \u1792\u17b6\u1793\u17b6\u1780\u17b6\u179a\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b \u1793\u17b7\u1784\u1780\u17b6\u179a\u1790\u17c2\u1791\u17b6\u17c6\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d4<\/li>\n<\/ul>\n<h3>\u1780\u17b6\u179a\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6 UL 1077<\/h3>\n<p><strong>\u1794\u1789\u17d2\u17a0\u17b6\u1791\u17bc\u1791\u17c5\u17d6<\/strong><\/p>\n<ul>\n<li>\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb\u17d6 \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u17a7\u1794\u1780\u179a\u178e\u17cd\u179b\u17be\u179f\u1791\u1798\u17d2\u1784\u1793\u17cb \u17ac\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1781\u17bb\u179f\u1794\u17d2\u179a\u1780\u17d2\u179a\u178f\u17b8<\/li>\n<li>\u1794\u1789\u17d2\u17a0\u17b6\u179f\u17c6\u179a\u1794\u179f\u17c6\u179a\u17bd\u179b\u17d6 \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u1787\u17b6\u1798\u17bd\u1799\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1785\u179a\u1793\u17d2\u178f<\/li>\n<li>\u1794\u179a\u17b6\u1787\u17d0\u1799\u1798\u17bb\u1793\u17a2\u17b6\u1799\u17bb\u17d6 \u1792\u17b6\u1793\u17b6\u1794\u17b6\u1793\u1793\u17bc\u179c\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f \u1793\u17b7\u1784\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d4<\/li>\n<li>\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1798\u17b7\u1793\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d6 \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1790\u17b6\u1798\u17b7\u1793\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1794\u17d2\u179a\u17be\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798<\/li>\n<\/ul>\n<h2>\u17a2\u1793\u17bb\u179f\u17b6\u179f\u1793\u17cd\u179c\u17b7\u1787\u17d2\u1787\u17b6\u1787\u17b8\u179c\u17c8<\/h2>\n<h3>\u1796\u17c1\u179b\u178e\u17b6\u178f\u17d2\u179a\u17bc\u179c\u1796\u17b7\u1782\u17d2\u179a\u17c4\u17c7\u1787\u17b6\u1798\u17bd\u1799\u17a2\u17d2\u1793\u1780\u1787\u17c6\u1793\u17b6\u1789<\/h3>\n<p><strong>\u1780\u17b6\u179a\u1796\u17b7\u1782\u17d2\u179a\u17c4\u17c7\u1799\u17c4\u1794\u179b\u17cb\u1787\u17c6\u1793\u17b6\u1789\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u17d6<\/strong><\/p>\n<ul>\n<li>\u1780\u17b6\u179a\u179c\u17b7\u1797\u17b6\u1782\u1782\u17d2\u179a\u17c4\u17c7\u1790\u17d2\u1793\u17b6\u1780\u17cb\u1793\u17c3\u1796\u1793\u17d2\u179b\u17ba\u1797\u17d2\u179b\u17be\u1784<\/li>\n<li>\u1780\u17b6\u179a\u179f\u17b7\u1780\u17d2\u179f\u17b6\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b<\/li>\n<li>\u1780\u17b6\u179a\u1782\u178e\u1793\u17b6\u1794\u1785\u17d2\u1785\u17bb\u1794\u17d2\u1794\u1793\u17d2\u1793\u1781\u17bb\u179f<\/li>\n<li>\u1780\u17b6\u179a\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u1785\u17d2\u1794\u17b6\u1794\u17cb<\/li>\n<li>\u1780\u17b6\u179a\u179a\u1785\u1793\u17b6\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u179f\u17d2\u1798\u17bb\u1782\u179f\u17d2\u1798\u17b6\u1789<\/li>\n<\/ul>\n<blockquote><p><strong>\ud83d\udca1 \u178a\u17c6\u1794\u17bc\u1793\u17d2\u1798\u17b6\u1793\u17a2\u17d2\u1793\u1780\u1787\u17c6\u1793\u17b6\u1789\u17d6<\/strong> \u178f\u17c2\u1784\u178f\u17c2\u1798\u17b6\u1793\u179c\u17b7\u179f\u17d2\u179c\u1780\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u178a\u17c2\u179b\u1798\u17b6\u1793\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u1792\u17d2\u179c\u17be\u1780\u17b6\u179a\u179f\u17b7\u1780\u17d2\u179f\u17b6\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u1793\u17c5\u1796\u17c1\u179b\u179b\u17b6\u1799\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1793\u17b7\u1784 UL 1077 \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u179f\u17d2\u1798\u17bb\u1782\u179f\u17d2\u1798\u17b6\u1789\u17d4<\/p><\/blockquote>\n<h3>\u1780\u178f\u17d2\u178f\u17b6\u1782\u17bb\u178e\u1797\u17b6\u1796 \u1793\u17b7\u1784\u1797\u17b6\u1796\u1787\u17bf\u1787\u17b6\u1780\u17cb<\/h3>\n<p><strong>\u1780\u17b6\u179a\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u178a\u17c2\u179b\u1798\u17b6\u1793\u1782\u17bb\u178e\u1797\u17b6\u1796\u17d6<\/strong><\/p>\n<ul>\n<li>\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u178a\u17c2\u179b\u1798\u17b6\u1793\u1780\u17d2\u1793\u17bb\u1784\u1794\u1789\u17d2\u1787\u17b8 UL \u1794\u17c9\u17bb\u178e\u17d2\u178e\u17c4\u17c7\u17d4<\/li>\n<li>\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u1794\u1784\u17d2\u1780\u17be\u178f\u17a1\u17be\u1784<\/li>\n<li>\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3 \u1793\u17b7\u1784\u179b\u1780\u17d2\u1781\u178e\u17c8\u1794\u1785\u17d2\u1785\u17c1\u1780\u1791\u17c1\u179f\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d4<\/li>\n<li>\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u1796\u17b8\u1797\u17b6\u1796\u17a2\u17b6\u1785\u179a\u1780\u1794\u17b6\u1793\u179a\u1799\u17c8\u1796\u17c1\u179b\u179c\u17c2\u1784<\/li>\n<li>\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u1780\u17b6\u179a\u1782\u17b6\u17c6\u1791\u17d2\u179a\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f<\/li>\n<\/ul>\n<h2>\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u179a\u17a0\u17d0\u179f<\/h2>\n<h3>UL 489 \u1780\u17b6\u179a\u1796\u17b7\u178f\u179a\u17a0\u17d0\u179f<\/h3>\n<ul>\n<li><strong>\u1782\u17c4\u179b\u1794\u17c6\u178e\u1784\u17d6<\/strong> \u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u1794\u178b\u1798<\/li>\n<li><strong>\u1791\u17b8\u178f\u17b6\u17c6\u1784\u17d6<\/strong> \u1794\u1793\u17d2\u1791\u17c7, switchboards, MCCs<\/li>\n<li><strong>\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u17d6<\/strong> 15A \u178a\u179b\u17cb 6000A<\/li>\n<li><strong>\u179a\u17c6\u1781\u17b6\u1793\u17d6<\/strong> \u179a\u17a0\u17bc\u178f\u178a\u179b\u17cb 200 kA<\/li>\n<li><strong>\u179b\u17c1\u1781\u1780\u17bc\u178a\u17d6<\/strong> \u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u1798\u17b6\u178f\u17d2\u179a\u17b6 \u17e2\u17e4\u17e0 \u1782.\u1787.\u1794<\/li>\n<\/ul>\n<h3>UL 1077 \u1780\u17b6\u179a\u1796\u17b7\u178f\u179a\u17a0\u17d0\u179f<\/h3>\n<ul>\n<li><strong>\u1782\u17c4\u179b\u1794\u17c6\u178e\u1784\u17d6<\/strong> \u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798<\/li>\n<li><strong>\u1791\u17b8\u178f\u17b6\u17c6\u1784\u17d6<\/strong> \u1793\u17c5\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8<\/li>\n<li><strong>\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u17d6<\/strong> \u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6\u1785\u17b6\u1794\u17cb\u1796\u17b8 0.5A \u178a\u179b\u17cb 63A<\/li>\n<li><strong>\u179a\u17c6\u1781\u17b6\u1793\u17d6<\/strong> \u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6\u179a\u17a0\u17bc\u178f\u178a\u179b\u17cb 10kA<\/li>\n<li><strong>\u179b\u17c1\u1781\u1780\u17bc\u178a\u17d6<\/strong> \u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1798\u17b6\u1793 UL 489 \u1781\u17b6\u1784\u179b\u17be<\/li>\n<\/ul>\n<h2>\u1787\u17b6\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb\u1794\u17b6\u1793\u179f\u17bd\u179a\u179f\u17c6\u178e\u17bd\u179a<\/h2>\n<h3>\u178f\u17be\u17a2\u17d2\u179c\u17b8\u1792\u17d2\u179c\u17be\u17b1\u17d2\u1799 UL 489 \u1781\u17bb\u179f\u1796\u17b8 UL 1077 \u1791\u17b6\u1780\u17cb\u1791\u1784\u1793\u17b9\u1784\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796?<\/h3>\n<p>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 UL 489 \u1786\u17d2\u179b\u1784\u1780\u17b6\u178f\u17cb\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1799\u17c9\u17b6\u1784\u1791\u17bc\u179b\u17c6\u1791\u17bc\u179b\u17b6\u1799\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798 \u179a\u17bd\u1798\u1791\u17b6\u17c6\u1784\u1780\u17b6\u179a\u179a\u17c6\u1781\u17b6\u1793\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1798\u17b6\u1793\u1780\u17c6\u17a0\u17bb\u179f\u1781\u17d2\u1796\u179f\u17cb \u1793\u17b7\u1784\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1797\u17b6\u1796\u1792\u1793\u17cb\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798 UL 1077 \u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179f\u17b6\u1780\u179b\u17d2\u1794\u1784\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u17a7\u1794\u1780\u179a\u178e\u17cd\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u178a\u17c2\u179b\u1798\u17b6\u1793\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1794\u1785\u17d2\u1785\u17bb\u1794\u17d2\u1794\u1793\u17d2\u1793\u1798\u17b6\u1793\u1780\u17c6\u17a0\u17bb\u179f\u1791\u17b6\u1794 \u17a0\u17be\u1799\u1798\u17b7\u1793\u17a2\u17b6\u1785\u1795\u17d2\u178f\u179b\u17cb\u1780\u1798\u17d2\u179a\u17b7\u178f\u1780\u17b6\u179a\u1796\u17b6\u179a\u178a\u17bc\u1785\u1782\u17d2\u1793\u17b6\u1794\u17b6\u1793\u1791\u17c1\u17d4<\/p>\n<h3>\u178f\u17be\u1781\u17d2\u1789\u17bb\u17c6\u17a2\u17b6\u1785\u1794\u17d2\u179a\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u178a\u17be\u1798\u17d2\u1794\u17b8\u1787\u17c6\u1793\u17bd\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 UL 489 \u1794\u17b6\u1793\u1791\u17c1?<\/h3>\n<p>\u1791\u17c1 \u1793\u17c1\u17c7\u1798\u17b7\u1793\u17a2\u17b6\u1785\u1791\u1791\u17bd\u179b\u1799\u1780\u1794\u17b6\u1793\u1791\u17c1 \u17a0\u17be\u1799\u179a\u17c6\u179b\u17c4\u1797\u179b\u17be\u179b\u17c1\u1781\u1780\u17bc\u178a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u1782\u17ba\u1787\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798 \u178a\u17c2\u179b\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1794\u17d2\u179a\u17be\u1794\u1793\u17d2\u1790\u17c2\u1798\u1796\u17b8\u179b\u17be \u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798 UL 489 \u1798\u17b7\u1793\u1798\u17c2\u1793\u1787\u17c6\u1793\u17bd\u179f\u1798\u1780\u179c\u17b7\u1789\u1791\u17c1\u17d4<\/p>\n<h3>\u178f\u17be\u1781\u17d2\u1789\u17bb\u17c6\u1780\u17c6\u178e\u178f\u17cb\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1793\u17b8\u1798\u17bd\u1799\u17d7\u178a\u17c4\u1799\u179a\u1794\u17c0\u1794\u178e\u17b6?<\/h3>\n<p>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1782\u178e\u1793\u17b6\u1785\u179a\u1793\u17d2\u178f\u1780\u17c6\u17a0\u17bb\u179f\u178a\u17c2\u179b\u1798\u17b6\u1793\u1793\u17c5\u1785\u17c6\u178e\u17bb\u1785\u178a\u17c6\u17a1\u17be\u1784 \u17a0\u17be\u1799\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17c2\u1780\u178a\u17c2\u179b\u1798\u17b6\u1793\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796\u179a\u17c6\u1781\u17b6\u1793\u179f\u17d2\u1798\u17be\u1782\u17d2\u1793\u17b6 \u17ac\u1792\u17c6\u1787\u17b6\u1784\u17d4 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u179f\u17bc\u1798\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u179b\u17be\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u1792\u1793\u17cb\u1791\u17d2\u179a\u17b6\u17c6\u179a\u1794\u179f\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd \u1793\u17b7\u1784\u1792\u17b6\u1793\u17b6\u1790\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1781\u17b6\u1784\u179b\u17be\u1795\u17d2\u178f\u179b\u17cb\u1793\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb\u17d4<\/p>\n<h3>\u178f\u17be\u1798\u17b6\u1793\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u1798\u17d2\u1782\u17b6\u179b\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1793\u17b8\u1798\u17bd\u1799\u17d7\u1791\u17c1?<\/h3>\n<p>\u1794\u17b6\u1791\/\u1785\u17b6\u179f \u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179f\u1798\u17d2\u1782\u17b6\u179b\u17cb &quot;Circuit Breaker&quot; \u1793\u17b7\u1784\u179a\u17bd\u1798\u1794\u1789\u17d2\u1785\u17bc\u179b\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3 \u1781\u178e\u17c8\u178a\u17c2\u179b\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179f\u1798\u17d2\u1782\u17b6\u179b\u17cb\u1790\u17b6 &quot;\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798&quot; \u1793\u17b7\u1784\u179a\u17bd\u1798\u1794\u1789\u17d2\u1785\u17bc\u179b\u1780\u17b6\u179a\u1796\u17d2\u179a\u1798\u17b6\u1793\u179f\u1798\u179a\u1798\u17d2\u1799\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u178a\u17c2\u179b\u1798\u17b6\u1793\u1794\u17c6\u178e\u1784\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u179a\u1794\u179f\u17cb\u1796\u17bd\u1780\u1782\u17c1\u17d4<\/p>\n<h3>\u178f\u17be\u200b\u1780\u17b6\u179a\u200b\u1794\u17d2\u179a\u17be\u200b\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u200b\u1781\u17bb\u179f\u200b\u1798\u17b6\u1793\u200b\u1795\u179b\u200b\u179c\u17b7\u1794\u17b6\u1780\u200b\u17a2\u17d2\u179c\u17b8\u200b\u1781\u17d2\u179b\u17c7?<\/h3>\n<p>\u1780\u17b6\u179a\u1794\u17d2\u179a\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798\u17a2\u17b6\u1785\u1794\u178e\u17d2\u178f\u17b6\u179b\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1780\u17c6\u17a0\u17bb\u179f\u1798\u17b7\u1793\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb \u1780\u17b6\u179a\u1794\u17c6\u1796\u17b6\u1793\u179b\u17c1\u1781\u1780\u17bc\u178a \u1794\u1789\u17d2\u17a0\u17b6\u1792\u17b6\u1793\u17b6\u179a\u17c9\u17b6\u1794\u17cb\u179a\u1784 \u1782\u17d2\u179a\u17c4\u17c7\u1790\u17d2\u1793\u17b6\u1780\u17cb\u1797\u17d2\u179b\u17be\u1784 \u1793\u17b7\u1784\u179a\u1794\u17bd\u179f\u1795\u17d2\u1791\u17b6\u179b\u17cb\u1781\u17d2\u179b\u17bd\u1793\u178a\u17c2\u179b\u17a2\u17b6\u1785\u1780\u17be\u178f\u1798\u17b6\u1793\u17d4 \u178f\u17c2\u1784\u178f\u17c2\u1794\u17d2\u179a\u17be\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u179f\u1798\u179a\u1798\u17d2\u1799\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1793\u17b8\u1798\u17bd\u1799\u17d7\u17d4<\/p>\n<h3>\u178f\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1796\u17b8\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1793\u17b8\u1798\u17bd\u1799\u17d7\u1782\u17bd\u179a\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1790\u17c2\u1791\u17b6\u17c6\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb\u1794\u17c9\u17bb\u178e\u17d2\u178e\u17b6?<\/h3>\n<p>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 UL 489 \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7\u1782\u17bd\u179a\u178f\u17c2\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1787\u17b6\u179a\u17c0\u1784\u179a\u17b6\u179b\u17cb\u1786\u17d2\u1793\u17b6\u17c6\u1793\u17b7\u1784\u179f\u17b6\u1780\u179b\u17d2\u1794\u1784\u179a\u17c0\u1784\u179a\u17b6\u179b\u17cb 3-5 \u1786\u17d2\u1793\u17b6\u17c6\u1798\u17d2\u178f\u1784\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798 UL 1077 \u1782\u17bd\u179a\u178f\u17c2\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1787\u17b6\u1795\u17d2\u1793\u17c2\u1780\u1793\u17c3\u1780\u17b6\u179b\u179c\u17b7\u1797\u17b6\u1782\u1790\u17c2\u1791\u17b6\u17c6\u17a7\u1794\u1780\u179a\u178e\u17cd \u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6\u1794\u17d2\u179a\u1785\u17b6\u17c6\u1786\u17d2\u1793\u17b6\u17c6 \u17ac\u178f\u17b6\u1798\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u179a\u1794\u179f\u17cb\u17a2\u17d2\u1793\u1780\u1795\u179b\u17b7\u178f\u17d4<\/p>\n<h3>\u178f\u17be\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1791\u17b6\u17c6\u1784\u1796\u17b8\u179a\u17a2\u17b6\u1785\u1794\u17d2\u179a\u17be\u1787\u17b6\u1798\u17bd\u1799\u1782\u17d2\u1793\u17b6\u1780\u17d2\u1793\u17bb\u1784\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u178f\u17c2\u1798\u17bd\u1799\u1794\u17b6\u1793\u1791\u17c1?<\/h3>\n<p>\u1794\u17b6\u1791 \u1793\u17c1\u17c7\u1787\u17b6\u179a\u17bf\u1784\u1792\u1798\u17d2\u1798\u178f\u17b6 \u17a0\u17be\u1799\u1787\u17b6\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd UL 489 \u1795\u17d2\u178f\u179b\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u178b\u1798 \u1781\u178e\u17c8\u178a\u17c2\u179b\u17a7\u1794\u1780\u179a\u178e\u17cd UL 1077 \u1795\u17d2\u178f\u179b\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u17d4 \u1780\u17b6\u179a\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u179a\u179c\u17b6\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1782\u17ba\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u179b\u17d2\u17a2\u1794\u17c6\u1795\u17bb\u178f\u17d4<\/p>\n<h3>\u178f\u17be\u178f\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1794\u178e\u17d2\u178f\u17bb\u17c7\u1794\u178e\u17d2\u178f\u17b6\u179b\u17a2\u17d2\u179c\u17b8\u1781\u17d2\u179b\u17c7\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784 \u1793\u17b7\u1784\u1790\u17c2\u1791\u17b6\u17c6?<\/h3>\n<p>\u179f\u17d2\u178a\u1784\u17cb\u178a\u17b6\u179a\u1791\u17b6\u17c6\u1784\u1796\u17b8\u179a\u1793\u17c1\u17c7\u1791\u17b6\u1798\u1791\u17b6\u179a\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u178a\u17c4\u1799\u1794\u17bb\u1782\u17d2\u1782\u179b\u17b7\u1780\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u178a\u17c2\u179b\u1798\u17b6\u1793\u179f\u1798\u178f\u17d2\u1790\u1797\u17b6\u1796 \u1787\u17b6\u1798\u17bd\u1799\u1793\u17b9\u1784\u1780\u17b6\u179a\u1794\u178e\u17d2\u178f\u17bb\u17c7\u1794\u178e\u17d2\u178f\u17b6\u179b \u1793\u17b7\u1784\u179c\u17b7\u1789\u17d2\u1789\u17b6\u1794\u1793\u1794\u17d0\u178f\u17d2\u179a\u179f\u1798\u179f\u17d2\u179a\u1794\u17d4 \u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u179f\u17d2\u1798\u17bb\u1782\u17d2\u179a\u179f\u17d2\u1798\u17b6\u1789\u17a2\u17b6\u1785\u178f\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1794\u178e\u17d2\u178f\u17bb\u17c7\u1794\u178e\u17d2\u178f\u17b6\u179b\u1794\u1793\u17d2\u1790\u17c2\u1798\u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u179f\u17b7\u1780\u17d2\u179f\u17b6\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b \u1793\u17b7\u1784\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u1796\u1793\u17d2\u179b\u17ba\u1797\u17d2\u179b\u17be\u1784\u17d4<\/p>\n<h2>\u179f\u17c1\u1785\u1780\u17d2\u178f\u17b8\u179f\u1793\u17d2\u1793\u17b7<\/h2>\n<p>\u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u1796\u17b8\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u179a\u179c\u17b6\u1784 UL 489 \u1793\u17b7\u1784 UL 1077 \u1782\u17ba\u1798\u17b6\u1793\u179f\u17b6\u179a\u17c8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u1793\u17b7\u1784\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u179b\u17c1\u1781\u1780\u17bc\u178a\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u1794\u17d2\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 UL 489 \u1795\u17d2\u178f\u179b\u17cb\u1793\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u1794\u178b\u1798\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7 \u1793\u17b7\u1784\u1794\u1793\u17d2\u1791\u17c7\u179f\u17c0\u1782\u17d2\u179c\u17b8 \u1781\u178e\u17c8\u178a\u17c2\u179b\u17a7\u1794\u1780\u179a\u178e\u17cd\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798 UL 1077 \u1795\u17d2\u178f\u179b\u17cb\u1793\u17bc\u179c\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1794\u1793\u17d2\u1790\u17c2\u1798\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u17d4 \u1780\u17bb\u17c6\u1787\u17c6\u1793\u17bd\u179f\u1798\u17bd\u1799\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1798\u17bd\u1799\u1795\u17d2\u179f\u17c1\u1784\u1791\u17c0\u178f \u17a0\u17be\u1799\u178f\u17c2\u1784\u178f\u17c2\u1792\u17b6\u1793\u17b6\u1793\u17bc\u179c\u1780\u17b6\u179a\u179f\u1798\u17d2\u179a\u1794\u179f\u1798\u17d2\u179a\u17bd\u179b\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u1793\u17c5\u1796\u17c1\u179b\u1794\u17d2\u179a\u17be\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1791\u17b6\u17c6\u1784\u1796\u17b8\u179a\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u178f\u17c2\u1798\u17bd\u1799\u17d4<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Direct Answer: UL 489 covers molded-case circuit breakers and switches used as main electrical protection in panels and switchboards, while UL 1077 covers supplementary protectors used within electrical equipment for component-level protection. The key difference is UL 489 devices provide primary electrical protection, while UL 1077 devices provide secondary protection.Understanding these two critical UL standards [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18761,"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-18503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/posts\/18503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/comments?post=18503"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/posts\/18503\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/media\/18761"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/media?parent=18503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/categories?post=18503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/tags?post=18503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}