{"id":21369,"date":"2026-01-20T14:42:08","date_gmt":"2026-01-20T06:42:08","guid":{"rendered":"https:\/\/viox.com\/?p=21369"},"modified":"2026-01-20T14:44:28","modified_gmt":"2026-01-20T06:44:28","slug":"mcb-mccb-temperature-rise-limits-iec-ul-standards","status":"publish","type":"post","link":"https:\/\/test.viox.com\/km\/mcb-mccb-temperature-rise-limits-iec-ul-standards\/","title":{"rendered":"MCB MCCB Temperature Rise Limits: How Hot is Too Hot per IEC 60947 &amp; UL 489?"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u1780\u1798\u17d2\u178f\u17c5\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f (Circuit Breakers): \u17a0\u17c1\u178f\u17bb\u17a2\u17d2\u179c\u17b8\u1794\u17b6\u1793\u1787\u17b6\u179c\u17b6\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/h2>\n<p>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u1793\u17b8\u1798\u17bd\u1799\u17d7\u1794\u1784\u17d2\u1780\u17be\u178f\u1780\u1798\u17d2\u178f\u17c5\u1780\u17c6\u17a1\u17bb\u1784\u1796\u17c1\u179b\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1792\u1798\u17d2\u1798\u178f\u17b6\u17d4 \u1793\u17c5\u1796\u17c1\u179b\u178a\u17c2\u179b\u1785\u179a\u1793\u17d2\u178f\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u17a0\u17bc\u179a\u1786\u17d2\u179b\u1784\u1780\u17b6\u178f\u17cb\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u2014\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784, \u1794\u1793\u17d2\u1791\u17c7\u1794\u17ca\u17b8\u1798\u17c1\u178f\u17b6\u179b\u17cb, \u1793\u17b7\u1784\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u2014\u1797\u17b6\u1796\u1792\u1793\u17cb\u1794\u1784\u17d2\u1780\u17be\u178f\u1790\u17b6\u1798\u1796\u179b\u1780\u1798\u17d2\u178a\u17c5\u17d4 \u1781\u178e\u17c8\u1796\u17c1\u179b\u178a\u17c2\u179b\u1780\u17c6\u178a\u17c5\u1781\u17d2\u179b\u17c7\u1787\u17c0\u179f\u1798\u17b7\u1793\u179a\u17bd\u1785 \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1781\u17d2\u179b\u17b6\u17c6\u1784\u1796\u17c1\u1780\u17a2\u17b6\u1785\u1792\u17d2\u179c\u17be\u17b1\u17d2\u1799\u1781\u17bc\u1785\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb \u1794\u1784\u17d2\u1780\u17be\u1793\u1780\u17b6\u179a\u1796\u17b6\u1780\u17cb\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784 \u1794\u178e\u17d2\u178f\u17b6\u179b\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u178a\u17b6\u1785\u17cb\u1785\u179a\u1793\u17d2\u178f\u178a\u17c4\u1799\u1798\u17b7\u1793\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb \u1793\u17b7\u1784\u1793\u17c5\u1791\u17b8\u1794\u17c6\u1795\u17bb\u178f\u1793\u17b6\u17c6\u1791\u17c5\u179a\u1780\u1780\u17b6\u179a\u1794\u179a\u17b6\u1787\u17d0\u1799\u178a\u17cf\u1792\u17d2\u1784\u1793\u17cb\u1792\u17d2\u1784\u179a\u17d4.<\/p>\n<p>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179c\u17b7\u179f\u17d2\u179c\u1780\u179a\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8 \u1793\u17b7\u1784\u17a2\u17d2\u1793\u1780\u179f\u17b6\u1784\u179f\u1784\u17cb\u1794\u1793\u17d2\u1791\u17c7\u178a\u17c2\u179b\u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb <a href=\"https:\/\/test.viox.com\/km\/mcb\/\">MCBs<\/a> \u1793\u17b7\u1784 <a href=\"https:\/\/test.viox.com\/km\/mccb\/\">MCCBs<\/a>, \u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u17a2\u17c6\u1796\u17b8\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 \u1798\u17b7\u1793\u178f\u17d2\u179a\u17b9\u1798\u178f\u17c2\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u1785\u17d2\u1794\u17b6\u1794\u17cb\u1794\u17c9\u17bb\u178e\u17d2\u178e\u17c4\u17c7\u1791\u17c1\u2014\u179c\u17b6\u1782\u17ba\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u1792\u17b6\u1793\u17b6\u1793\u17bc\u179c\u1797\u17b6\u1796\u1787\u17bf\u1787\u17b6\u1780\u17cb \u1793\u17b7\u1784\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u1780\u17d2\u1793\u17bb\u1784\u179a\u1799\u17c8\u1796\u17c1\u179b\u179c\u17c2\u1784\u17d4 \u1791\u17b6\u17c6\u1784 IEC 60947-2 (\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb MCCBs) \u1793\u17b7\u1784 UL 489 (\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u17a2\u17b6\u1798\u17c1\u179a\u17b7\u1780\u1781\u17b6\u1784\u1787\u17be\u1784) \u1794\u1784\u17d2\u1780\u17be\u178f\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1780\u1798\u17d2\u178a\u17c5\u1785\u17d2\u1794\u17b6\u179f\u17cb\u179b\u17b6\u179f\u17cb\u178a\u17c2\u179b\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f\u178a\u17bc\u1785\u1787\u17b6 VIOX \u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1794\u17c6\u1796\u17c1\u1789\u178f\u17b6\u1798\u179a\u1799\u17c8\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1794\u17d2\u179a\u1797\u17c1\u1791\u1799\u17c9\u17b6\u1784\u1798\u17c9\u178f\u17cb\u1785\u178f\u17cb\u17d4.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Industrial-photography-with-FLIR-camera-showing-temperature-gradients-on-VIOX-breakers.webp\" alt=\"Thermal imaging inspection of VIOX circuit breakers showing temperature distribution in electrical panel\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; margin-top: 8px;\">\u179a\u17bc\u1794\u1797\u17b6\u1796\u1791\u17b8 1: \u1780\u17b6\u179a\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5\u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u1780\u17b6\u179a\u1785\u17c2\u1780\u1785\u17b6\u1799\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1793\u17c5\u1791\u17bc\u1791\u17b6\u17c6\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f VIOX \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u178a\u17c2\u179b\u1780\u17c6\u1796\u17bb\u1784\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u17d4.<\/figcaption><\/figure>\n<h2>\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1792\u17c0\u1794\u1793\u17b9\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f: \u1780\u17b6\u179a\u1794\u17c2\u1784\u1785\u17c2\u1780\u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/h2>\n<p>\u1798\u17bb\u1793\u1796\u17c1\u179b\u1785\u17bc\u179b\u1791\u17c5\u1780\u17d2\u1793\u17bb\u1784\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb \u179c\u17b6\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u178e\u17b6\u179f\u17cb\u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u1799\u179b\u17cb\u1796\u17b8\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u179a\u179c\u17b6\u1784 <strong>\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 (\u0394T)<\/strong> \u1793\u17b7\u1784 <strong>\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f<\/strong>:<\/p>\n<ul>\n<li><strong>\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 (\u0394T)<\/strong>\u17d6 \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179b\u17be\u179f\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1787\u17bb\u17c6\u179c\u17b7\u1789 \u178a\u17c2\u179b\u179c\u17b6\u179f\u17cb\u179c\u17c2\u1784\u1787\u17b6\u17a2\u1784\u17d2\u179f\u17b6\u179f\u17c1 \u17ac\u17a0\u17d2\u179c\u17b6\u179a\u17b7\u1793\u17a0\u17c3<\/li>\n<li><strong>\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f<\/strong>\u17d6 \u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u179f\u17cb\u179c\u17c2\u1784\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784\u1793\u17c3\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb\u1798\u17bd\u1799 \u178a\u17c4\u1799\u179a\u17bd\u1798\u1794\u1789\u17d2\u1785\u17bc\u179b\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 \u1794\u17bc\u1780\u1793\u17b9\u1784\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796<\/li>\n<\/ul>\n<p>\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1797\u17b6\u1782\u1785\u17d2\u179a\u17be\u1793\u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb\u1796\u17b8\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17c4\u1799\u179f\u1793\u17d2\u1798\u178f\u1790\u17b6\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1782\u17ba 40\u00b0C (104\u00b0F)\u17d4 \u1793\u17c1\u17c7\u200b\u1798\u17b6\u1793\u1793\u17d0\u1799\u200b\u1790\u17b6:<\/p>\n<p><strong>\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f = \u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 + \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796<\/strong><\/p>\n<p>\u17a7\u1791\u17b6\u17a0\u179a\u178e\u17cd \u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u178a\u17c2\u179b\u1798\u17b6\u1793\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1780\u17be\u1793\u17a1\u17be\u1784 50\u00b0C \u178a\u17c2\u179b\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u1799\u17b6\u1780\u17b6\u179f 40\u00b0C \u1793\u17b9\u1784\u1788\u17b6\u1793\u178a\u179b\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 90\u00b0C\u2014\u1785\u17c6\u178e\u17bb\u1785\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1794\u17d2\u179a\u1797\u17c1\u1791\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u1787\u17b6\u1785\u17d2\u179a\u17be\u1793\u17d4.<\/p>\n<h2>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 UL 489<\/h2>\n<p>UL 489 \u1794\u1784\u17d2\u1780\u17be\u178f\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1780\u1798\u17d2\u178a\u17c5\u178a\u17cf\u1791\u17bc\u179b\u17c6\u1791\u17bc\u179b\u17b6\u1799\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u1780\u179a\u178e\u17b8\u178a\u17c2\u179b\u1794\u17b6\u1793\u178a\u17c6\u17a1\u17be\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u1793\u17c5\u17a2\u17b6\u1798\u17c1\u179a\u17b7\u1780\u1781\u17b6\u1784\u1787\u17be\u1784\u17d4 \u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1793\u17c1\u17c7\u1794\u17c2\u1784\u1785\u17c2\u1780\u179a\u179c\u17b6\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a (80% \u1794\u1793\u17d2\u178f) \u1793\u17b7\u1784 100% \u17d4.<\/p>\n<h3>\u178f\u17b6\u179a\u17b6\u1784\u1791\u17b8 1: \u179f\u17c1\u1785\u1780\u17d2\u178f\u17b8\u179f\u1784\u17d2\u1781\u17c1\u1794\u1793\u17c3\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 UL 489<\/h3>\n<table border=\"1\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u179f\u1798\u17b6\u179f\u1797\u17b6\u1782\/\u1791\u17b8\u178f\u17b6\u17c6\u1784<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a (80%)<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3 100%<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u1783\u17d2\u179b\u17c4\u1784\u1799\u17c4\u1784<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u1781\u17d2\u179f\u17c2\u1797\u17d2\u179b\u17be\u1784<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 50\u00b0C (90\u00b0C \u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1793\u17c5 40\u00b0C \u1787\u17bb\u17c6\u179c\u17b7\u1789)<\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 60\u00b0C (100\u00b0C \u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1793\u17c5 40\u00b0C \u1787\u17bb\u17c6\u179c\u17b7\u1789)<\/td>\n<td style=\"padding: 8px;\">UL 489 \u00a77.1.4.2.2 \/ \u00a77.1.4.3.3<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u178a\u17c3\/\u1794\u17ca\u17bc\u178f\u178a\u17c2\u1780<\/strong><\/td>\n<td style=\"padding: 8px;\">60\u00b0C \u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f<\/td>\n<td style=\"padding: 8px;\">60\u00b0C \u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f<\/td>\n<td style=\"padding: 8px;\">UL 489 \u00a77.1.4.1.6<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u178a\u17c3\/\u1794\u17ca\u17bc\u178f\u1798\u17b7\u1793\u1798\u17c2\u1793\u179b\u17c4\u17a0\u1792\u17b6\u178f\u17bb<\/strong><\/td>\n<td style=\"padding: 8px;\">85\u00b0C \u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f<\/td>\n<td style=\"padding: 8px;\">85\u00b0C \u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f<\/td>\n<td style=\"padding: 8px;\">UL 489 \u00a77.1.4.1.6<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1782\u17d2\u1798\u17b6\u1793\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb (\u1794\u17b6\u1793\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1797\u17b6\u1796\u1792\u1793\u17cb)<\/td>\n<td style=\"padding: 8px;\">\u1782\u17d2\u1798\u17b6\u1793\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb (\u1794\u17b6\u1793\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1797\u17b6\u1796\u1792\u1793\u17cb)<\/td>\n<td style=\"padding: 8px;\">UL 489 \u00a78.7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1795\u17d2\u1791\u17c3\u17a0\u17ca\u17bb\u1798\u1796\u17d0\u1791\u17d2\u1792<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1794\u17d2\u179a\u17c2\u1794\u17d2\u179a\u17bd\u179b\u178f\u17b6\u1798\u179f\u1798\u17d2\u1797\u17b6\u179a\u17c8 \u1793\u17b7\u1784\u1791\u17b8\u178f\u17b6\u17c6\u1784<\/td>\n<td style=\"padding: 8px;\">\u1794\u17d2\u179a\u17c2\u1794\u17d2\u179a\u17bd\u179b\u178f\u17b6\u1798\u179f\u1798\u17d2\u1797\u17b6\u179a\u17c8 \u1793\u17b7\u1784\u1791\u17b8\u178f\u17b6\u17c6\u1784<\/td>\n<td style=\"padding: 8px;\">UL 489 \u00a77.1.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u1782\u1793\u17d2\u179b\u17b9\u17c7\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/strong>\u17d6 \u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6 10\u00b0C \u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179a\u179c\u17b6\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a \u1793\u17b7\u1784 100% (50\u00b0C \u1791\u179b\u17cb\u1793\u17b9\u1784 60\u00b0C) \u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u1797\u17b6\u1796\u178f\u17b6\u1793\u178f\u17b9\u1784\u1780\u1798\u17d2\u178a\u17c5\u1794\u1793\u17d2\u1790\u17c2\u1798\u1793\u17c5\u1796\u17c1\u179b\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1787\u17b6\u1794\u1793\u17d2\u178f\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb\u1793\u17c5\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u1796\u17c1\u1789\u179b\u17c1\u1789\u17d4 \u1793\u17c1\u17c7\u200b\u1787\u17b6\u200b\u1798\u17bc\u179b\u17a0\u17c1\u178f\u17bb\u200b\u178a\u17c2\u179b <a href=\"https:\/\/test.viox.com\/km\/standard-breaker-sizes\/\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3 100%<\/a> \u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u179a\u1785\u1793\u17b6\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u178a\u17c2\u179b\u1794\u17b6\u1793\u1780\u17c2\u179b\u1798\u17d2\u17a2 \u1793\u17b7\u1784\u1780\u17b6\u179a\u179f\u17b6\u1799\u1797\u17b6\u1799\u1780\u17c6\u178a\u17c5\u17d4.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/VIOX-MCCB-cutaway-with-heat-signature-overlay.webp\" alt=\"VIOX MCCB internal heat distribution showing critical temperature measurement points per UL 489\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; margin-top: 8px;\">\u179a\u17bc\u1794\u1797\u17b6\u1796\u1791\u17b8 2: \u1791\u17b7\u178a\u17d2\u178b\u1797\u17b6\u1796\u1780\u17b6\u178f\u17cb\u1793\u17c3 VIOX MCCB \u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u1780\u17b6\u179a\u1785\u17c2\u1780\u1785\u17b6\u1799\u1780\u17c6\u178a\u17c5\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784 \u1793\u17b7\u1784\u1785\u17c6\u178e\u17bb\u1785\u179c\u17b6\u179f\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7 \u1799\u17c4\u1784\u178f\u17b6\u1798\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a UL 489 \u17d4.<\/figcaption><\/figure>\n<h2>\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 IEC 60947-2 \u1793\u17b7\u1784 IEC 60898-1<\/h2>\n<p>\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u17a2\u1793\u17d2\u178f\u179a\u1787\u17b6\u178f\u17b7\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u179c\u17b7\u1792\u17b8\u179f\u17b6\u179f\u17d2\u179a\u17d2\u178f\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u1794\u17c9\u17bb\u1793\u17d2\u178f\u17c2\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u1794\u1793\u17d2\u178f\u17b7\u1785\u1794\u1793\u17d2\u178f\u17bd\u1785\u1785\u17c6\u1796\u17c4\u17c7\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1780\u1798\u17d2\u178a\u17c5\u17d6<\/p>\n<h3>\u178f\u17b6\u179a\u17b6\u1784\u1791\u17b8 2: \u1780\u17b6\u179a\u1794\u17d2\u179a\u17c0\u1794\u1792\u17c0\u1794\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 IEC 60947-2 \u1791\u179b\u17cb\u1793\u17b9\u1784 IEC 60898-1<\/h3>\n<table border=\"1\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u1794\u17c9\u17b6\u179a\u17c9\u17b6\u1798\u17c9\u17c2\u178f\u17d2\u179a<\/th>\n<th style=\"padding: 8px; text-align: left;\">IEC 60947-2 (MCCBs \u2013 \u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1798\u17d2\u1798)<\/th>\n<th style=\"padding: 8px; text-align: left;\">IEC 60898-1 (MCBs \u2013 \u179b\u17c6\u1793\u17c5\u178a\u17d2\u178b\u17b6\u1793)<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1799\u17c4\u1784\u1787\u17bb\u17c6\u179c\u17b7\u1789<\/strong><\/td>\n<td style=\"padding: 8px;\">40\u00b0C (\u17a2\u17b6\u1785\u1787\u17b6 30\u00b0C \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1798\u17bd\u1799\u1785\u17c6\u1793\u17bd\u1793)<\/td>\n<td style=\"padding: 8px;\">\u1799\u17c4\u1784\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a 30\u00b0C<\/td>\n<td style=\"padding: 8px;\">\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f\u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1798\u17d2\u1798\u1792\u17c0\u1794\u1793\u17b9\u1784\u179b\u17c6\u1793\u17c5\u178a\u17d2\u178b\u17b6\u1793<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799<\/strong><\/td>\n<td style=\"padding: 8px;\">50-70\u00b0C \u17a2\u17b6\u179f\u17d2\u179a\u17d0\u1799\u179b\u17be\u1794\u17d2\u179a\u1797\u17c1\u1791\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799<\/td>\n<td style=\"padding: 8px;\">60\u00b0C \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179c\u17b8\u179f<\/td>\n<td style=\"padding: 8px;\">\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u1793\u17c3\u179f\u1798\u17d2\u1797\u17b6\u179a\u17c8<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u178a\u17c3\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 55\u00b0C (\u179b\u17c4\u17a0\u1792\u17b6\u178f\u17bb), \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 70\u00b0C (\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb)<\/td>\n<td style=\"padding: 8px;\">\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6<\/td>\n<td style=\"padding: 8px;\">\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784\u17a2\u17d2\u1793\u1780\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1795\u17d2\u1791\u17c3\u17a0\u17ca\u17bb\u1798\u1796\u17d0\u1791\u17d2\u1792<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 60-80\u00b0C \u17a2\u17b6\u179f\u17d2\u179a\u17d0\u1799\u179b\u17be\u179f\u1798\u17d2\u1797\u17b6\u179a\u17c8<\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 60\u00b0C \u1792\u1798\u17d2\u1798\u178f\u17b6<\/td>\n<td style=\"padding: 8px;\">\u1794\u17d2\u179a\u17c2\u1794\u17d2\u179a\u17bd\u179b\u178f\u17b6\u1798\u1780\u1798\u17d2\u179a\u17b7\u178f\u1793\u17c3\u1780\u17b6\u179a\u1794\u17c6\u1796\u17bb\u179b<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f\u178a\u17c6\u178e\u17be\u179a\u1780\u1798\u17d2\u178a\u17c5<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1793\u17c5\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3, 40\u00b0C \u1787\u17bb\u17c6\u179c\u17b7\u1789<\/td>\n<td style=\"padding: 8px;\">\u1793\u17c5\u1785\u179a\u1793\u17d2\u178f\u1780\u1798\u17d2\u179a\u17b7\u178f, \u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 30\u00b0C<\/td>\n<td style=\"padding: 8px;\">\u1794\u17c9\u17c7\u1796\u17b6\u179b\u17cb <a href=\"https:\/\/test.viox.com\/km\/mcb-ambient-temperature-ratings-and-derating-factors\/\">\u1780\u178f\u17d2\u178f\u17b6\u1780\u17c6\u178e\u178f\u17cb\u1780\u1798\u17d2\u179a\u17b7\u178f<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u1785\u17c6\u178e\u17b6\u17c6\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/strong>\u17d6 IEC 60947-2 \u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u1785\u17c6\u1796\u17c4\u17c7 <a href=\"https:\/\/test.viox.com\/km\/what-is-a-molded-case-circuit-breaker-mccb\/\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1780\u179a\u178e\u17b8 (MCCBs)<\/a> \u178a\u17c2\u179b\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179a\u1785\u1793\u17b6\u17a1\u17be\u1784\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1798\u17d2\u1798\u178a\u17c2\u179b\u1798\u17b6\u1793\u1780\u1798\u17d2\u179a\u17b7\u178f\u1780\u17c6\u17a0\u17bb\u179f\u1781\u17d2\u1796\u179f\u17cb \u1793\u17b7\u1784\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u178a\u17c2\u179b\u1791\u17b6\u1798\u1791\u17b6\u179a\u1780\u17b6\u1793\u17cb\u178f\u17c2\u1781\u17d2\u179b\u17b6\u17c6\u1784 \u1781\u178e\u17c8\u1796\u17c1\u179b\u178a\u17c2\u179b IEC 60898-1 \u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1781\u17d2\u1793\u17b6\u178f\u178f\u17bc\u1785\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179b\u17c6\u1793\u17c5\u178a\u17d2\u178b\u17b6\u1793 \u1793\u17b7\u1784\u1780\u17b6\u179a\u1794\u17d2\u179a\u17be\u1794\u17d2\u179a\u17b6\u179f\u17cb\u1796\u17b6\u178e\u17b7\u1787\u17d2\u1787\u1780\u1798\u17d2\u1798\u1781\u17d2\u1793\u17b6\u178f\u178f\u17bc\u1785\u17d4.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Circuit-breaker-heat-flow-schematic.webp\" alt=\"Technical diagram showing temperature zones and heat flow in VIOX circuit breaker per IEC 60947 standards\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; margin-top: 8px;\">\u179a\u17bc\u1794\u1797\u17b6\u1796\u1791\u17b8 3\u17d6 \u1782\u17d2\u179a\u17c4\u1784\u178a\u17d2\u1799\u17b6\u1780\u17d2\u179a\u17b6\u1798\u178a\u17c2\u179b\u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u178f\u17c6\u1794\u1793\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 \u1793\u17b7\u1784\u1795\u17d2\u179b\u17bc\u179c\u179b\u17c6\u17a0\u17bc\u179a\u1780\u17c6\u178a\u17c5\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 VIOX \u178a\u17c2\u179b\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798 IEC 60947 \u17d4.<\/figcaption><\/figure>\n<h2>\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a2\u178f\u17b7\u1794\u179a\u17b7\u1798\u17b6\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1793\u17c5\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1795\u17d2\u179f\u17c1\u1784\u17d7\u1782\u17d2\u1793\u17b6<\/h2>\n<p>\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u1780\u17d2\u1793\u17bb\u1784\u1796\u17b7\u1797\u1796\u179b\u17c4\u1780\u1796\u17b7\u178f\u1780\u1798\u17d2\u179a\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1793\u17c5\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a 40\u00b0C \u17d4 \u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u17a2\u17c6\u1796\u17b8\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1793\u17c5\u1791\u17bc\u1791\u17b6\u17c6\u1784\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1795\u17d2\u179f\u17c1\u1784\u17d7\u1782\u17ba\u1798\u17b6\u1793\u179f\u17b6\u179a\u17c8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u17d4.<\/p>\n<h3>\u178f\u17b6\u179a\u17b6\u1784\u1791\u17b8 3\u17d6 \u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a2\u178f\u17b7\u1794\u179a\u17b7\u1798\u17b6\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1793\u17c5\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1795\u17d2\u179f\u17c1\u1784\u17d7\u1782\u17d2\u1793\u17b6<\/h3>\n<table border=\"1\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a (\u1780\u17be\u1793\u17a1\u17be\u1784 50\u00b0C)<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3 100% (\u1780\u17be\u1793\u17a1\u17be\u1784 60\u00b0C)<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u178a\u17c3\u178a\u17c2\u1780 (\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6 60\u00b0C)<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u178a\u17c3\u1798\u17b7\u1793\u1798\u17c2\u1793\u179b\u17c4\u17a0\u1792\u17b6\u178f\u17bb (\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6 85\u00b0C)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>25\u00b0C<\/strong><\/td>\n<td style=\"padding: 8px;\">75\u00b0C (167\u00b0F)<\/td>\n<td style=\"padding: 8px;\">85\u00b0C (185\u00b0F)<\/td>\n<td style=\"padding: 8px;\">60\u00b0C (140\u00b0F)<\/td>\n<td style=\"padding: 8px;\">85\u00b0C (185\u00b0F)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>30\u00b0C (86\u00b0F)<\/strong><\/td>\n<td style=\"padding: 8px;\">80\u00b0C (176\u00b0F)<\/td>\n<td style=\"padding: 8px;\">90\u00b0C (194\u00b0F)<\/td>\n<td style=\"padding: 8px;\">60\u00b0C (140\u00b0F)<\/td>\n<td style=\"padding: 8px;\">85\u00b0C (185\u00b0F)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>40\u00b0C<\/strong><\/td>\n<td style=\"padding: 8px;\">90\u00b0C (194\u00b0F)<\/td>\n<td style=\"padding: 8px;\">100\u00b0C (212\u00b0F)<\/td>\n<td style=\"padding: 8px;\">60\u00b0C (140\u00b0F)<\/td>\n<td style=\"padding: 8px;\">85\u00b0C (185\u00b0F)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>50\u00b0C (122\u00b0F)<\/strong><\/td>\n<td style=\"padding: 8px;\">100\u00b0C (212\u00b0F) \u26a0\ufe0f<\/td>\n<td style=\"padding: 8px;\">110\u00b0C (230\u00b0F) \u26a0\ufe0f<\/td>\n<td style=\"padding: 8px;\">60\u00b0C (140\u00b0F)<\/td>\n<td style=\"padding: 8px;\">85\u00b0C (185\u00b0F)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>60\u00b0C (140\u00b0F)<\/strong><\/td>\n<td style=\"padding: 8px;\">110\u00b0C (230\u00b0F) \u274c<\/td>\n<td style=\"padding: 8px;\">120\u00b0C (248\u00b0F) \u274c<\/td>\n<td style=\"padding: 8px;\">60\u00b0C (140\u00b0F)<\/td>\n<td style=\"padding: 8px;\">85\u00b0C (185\u00b0F)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u26a0\ufe0f = \u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17b6\u178f\u17cb\u1794\u1793\u17d2\u1790\u1799\u1780\u1798\u17d2\u179a\u17b7\u178f \u17ac\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u17b1\u17d2\u1799\u178f\u17d2\u179a\u1787\u17b6\u1780\u17cb\u1794\u17d2\u179a\u179f\u17be\u179a\u17a1\u17be\u1784<br \/>\n    \u274c = \u179b\u17be\u179f\u1796\u17b8\u1780\u1798\u17d2\u179a\u17b7\u178f\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u1792\u1798\u17d2\u1798\u178f\u17b6 (90\u00b0C THHN\/XHHW)<\/p>\n<p><strong>\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/strong>\u17d6 \u1793\u17c5\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1781\u17d2\u1796\u179f\u17cb \u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17a2\u17b6\u1785\u179b\u17be\u179f\u1796\u17b8\u1780\u1798\u17d2\u179a\u17b7\u178f\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1793\u17c3\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a 75\u00b0C \u17ac 90\u00b0C \u17d4 \u1793\u17c1\u17c7\u1787\u17b6\u1798\u17bc\u179b\u17a0\u17c1\u178f\u17bb\u178a\u17c2\u179b <a href=\"https:\/\/test.viox.com\/km\/electrical-derating-temperature-altitude-grouping-factors\/\">\u1780\u17b6\u179a\u1780\u17b6\u178f\u17cb\u1794\u1793\u17d2\u1790\u1799\u1780\u1798\u17d2\u179a\u17b7\u178f\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796<\/a> \u1780\u17d2\u179b\u17b6\u1799\u1787\u17b6\u1780\u17b6\u179a\u179f\u17c6\u1781\u17b6\u1793\u17cb\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1780\u17d2\u178f\u17c5\u17d4.<\/p>\n<h2>\u1793\u17b8\u178f\u17b7\u179c\u17b7\u1792\u17b8\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1780\u1798\u17d2\u178a\u17c5 \u1793\u17b7\u1784\u1780\u17b6\u179a\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f<\/h2>\n<p>\u1791\u17b6\u17c6\u1784 UL 489 \u1793\u17b7\u1784 IEC 60947-2 \u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1780\u1798\u17d2\u178a\u17c5\u1799\u17c9\u17b6\u1784\u1791\u17bc\u179b\u17c6\u1791\u17bc\u179b\u17b6\u1799\u17d6<\/p>\n<ol>\n<li><strong>\u1780\u17b6\u179a\u179a\u17c0\u1794\u1785\u17c6\u178f\u17c1\u179f\u17d2\u178f<\/strong>\u17d6 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1798\u17c9\u17c4\u1793\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u1780\u17c6\u178e\u178f\u17cb\u179a\u1785\u1793\u17b6\u179f\u1798\u17d2\u1796\u17d0\u1793\u17d2\u1792\u178a\u17c2\u179b\u1794\u17b6\u1793\u1782\u17d2\u179a\u17c4\u1784\u1791\u17bb\u1780\u179a\u1794\u179f\u17cb\u1796\u17bd\u1780\u1782\u17c1 (\u1794\u17b7\u1791\u1787\u17b7\u178f \u17ac\u1794\u17be\u1780\u1785\u17c6\u17a0) \u17a0\u17be\u1799\u1795\u17d2\u1791\u17bb\u1780\u1791\u17c5\u1785\u179a\u1793\u17d2\u178f\u1780\u1798\u17d2\u179a\u17b7\u178f<\/li>\n<li><strong>\u179a\u1799\u17c8\u1796\u17c1\u179b\u179f\u17d2\u1790\u17c1\u179a\u1797\u17b6\u1796<\/strong>\u17d6 \u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1794\u1793\u17d2\u178f\u17a2\u1794\u17d2\u1794\u1794\u179a\u1798\u17b6 3 \u1798\u17c9\u17c4\u1784\u179a\u17a0\u17bc\u178f\u178a\u179b\u17cb\u179b\u17c6\u1793\u17b9\u1784\u1780\u1798\u17d2\u178a\u17c5\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1788\u17b6\u1793\u178a\u179b\u17cb<\/li>\n<li><strong>\u1785\u17c6\u178e\u17bb\u1785\u179c\u17b6\u179f\u17cb<\/strong>\u17d6 Thermocouples \u178a\u17b6\u1780\u17cb\u1793\u17c5\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799 \u178a\u17c3 \u1793\u17b7\u1784\u1795\u17d2\u1791\u17c3\u179f\u17d2\u179a\u17c4\u1798<\/li>\n<li><strong>\u1780\u17b6\u179a\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793<\/strong>\u17d6 \u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1792\u17d2\u179c\u17be\u17a1\u17be\u1784\u1793\u17c5\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 40\u00b0C (UL 489) \u17ac\u1799\u17c4\u1784\u178f\u17b6\u1798\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1799\u17c4\u1784\u178a\u17c2\u179b\u1794\u17b6\u1793\u1794\u17d2\u179a\u1780\u17b6\u179f\u179a\u1794\u179f\u17cb\u17a2\u17d2\u1793\u1780\u1795\u179b\u17b7\u178f (IEC)<\/li>\n<li><strong>\u179b\u1780\u17d2\u1781\u178e\u17c8\u179c\u17b7\u1793\u17b7\u1785\u17d2\u1786\u17d0\u1799 \u1787\u17b6\u1794\u17cb\/\u1792\u17d2\u179b\u17b6\u1780\u17cb<\/strong>\u17d6 \u1785\u17c6\u178e\u17bb\u1785\u179c\u17b6\u179f\u17cb\u1791\u17b6\u17c6\u1784\u17a2\u179f\u17cb\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1793\u17c5\u1780\u17d2\u179a\u17c4\u1798\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17c2\u179b\u1794\u17b6\u1793\u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb<\/li>\n<\/ol>\n<p>VIOX \u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1780\u1798\u17d2\u178a\u17c5\u179b\u17be\u1782\u17d2\u179a\u1794\u17cb <a href=\"https:\/\/test.viox.com\/km\/types-of-circuit-breakers\/\">\u1780\u17b6\u179a\u179a\u1785\u1793\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8<\/a> \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1798\u1793\u17d2\u1791\u17b8\u179a\u1796\u17b7\u179f\u17c4\u1792\u1793\u17cd\u178a\u17c2\u179b\u1791\u1791\u17bd\u179b\u179f\u17d2\u1782\u17b6\u179b\u17cb\u179a\u1794\u179f\u17cb\u1799\u17be\u1784 \u178a\u17c4\u1799\u1792\u17b6\u1793\u17b6\u1794\u17b6\u1793\u1793\u17bc\u179c\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a IEC \u1793\u17b7\u1784 UL \u17d4 \u179c\u17b7\u1789\u17d2\u1789\u17b6\u1794\u1793\u1794\u178f\u17d2\u179a\u1791\u17d2\u179c\u17c1\u1793\u17c1\u17c7\u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u1795\u179b\u17b7\u178f\u1795\u179b\u179a\u1794\u179f\u17cb\u1799\u17be\u1784\u1794\u1798\u17d2\u179a\u17be\u1791\u17b8\u1795\u17d2\u179f\u17b6\u179a\u179f\u1780\u179b\u178a\u17c4\u1799\u1798\u17b6\u1793\u1791\u17c6\u1793\u17bb\u1780\u1785\u17b7\u178f\u17d2\u178f\u17d4.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Terminal-temperature-comparison-chart.webp\" alt=\"Comparison of terminal temperature rise limits for standard vs 100% rated VIOX circuit breakers\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; margin-top: 8px;\">\u179a\u17bc\u1794\u1797\u17b6\u1796\u1791\u17b8 4\u17d6 \u1780\u17b6\u179a\u1794\u17d2\u179a\u17c0\u1794\u1792\u17c0\u1794\u1796\u17b8\u1785\u17c6\u17a0\u17c0\u1784\u1791\u17c5\u1785\u17c6\u17a0\u17c0\u1784\u1793\u17c3\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 VIOX \u178a\u17c2\u179b\u1798\u17b6\u1793\u1780\u1798\u17d2\u179a\u17b7\u178f\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1792\u17c0\u1794\u1793\u17b9\u1784 100% \u17d4.<\/figcaption><\/figure>\n<h2>\u1780\u17c6\u178a\u17c5\u17a2\u17ca\u17b8\u1793\u17a0\u17d2\u179c\u17d2\u179a\u17b6\u179a\u17c9\u17c1\u178a\u17d6 \u1780\u17b6\u179a\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784<\/h2>\n<p>\u1780\u17c6\u178a\u17c5\u17a2\u17ca\u17b8\u1793\u17a0\u17d2\u179c\u17d2\u179a\u17b6\u179a\u17c9\u17c1\u178a (IR) \u1794\u17b6\u1793\u1780\u17d2\u179b\u17b6\u1799\u1787\u17b6\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u17a7\u179f\u17d2\u179f\u17b6\u17a0\u1780\u1798\u17d2\u1798\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c2\u179b\u1798\u17b7\u1793\u179a\u17b6\u178f\u178f\u17d2\u1794\u17b6\u178f\u17d4 \u1791\u17c4\u17c7\u1799\u17c9\u17b6\u1784\u178e\u17b6\u1780\u17cf\u178a\u17c4\u1799 \u1780\u17b6\u179a\u1794\u1780\u179f\u17d2\u179a\u17b6\u1799\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u1799\u179b\u17cb\u178a\u17b9\u1784\u1791\u17b6\u17c6\u1784\u1794\u1785\u17d2\u1785\u17c1\u1780\u179c\u17b7\u1791\u17d2\u1799\u17b6 \u1793\u17b7\u1784\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u17d4.<\/p>\n<h3>\u178f\u17b6\u179a\u17b6\u1784\u1791\u17b8 4\u17d6 \u1798\u1782\u17d2\u1782\u17bb\u1791\u17d2\u1791\u17c1\u179f\u1780\u17cd\u1794\u1780\u179f\u17d2\u179a\u17b6\u1799\u1780\u17c6\u178a\u17c5 IR<\/h3>\n<table border=\"1\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 (\u0394T)<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u179f\u1789\u17d2\u1789\u17b6\u1780\u1798\u17d2\u178a\u17c5<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u179f\u1780\u1798\u17d2\u1798\u1797\u17b6\u1796\u178a\u17c2\u179b\u1794\u17b6\u1793\u178e\u17c2\u1793\u17b6\u17c6<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u1780\u1798\u17d2\u179a\u17b7\u178f\u1794\u1793\u17d2\u1791\u17b6\u1793\u17cb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>0-10\u00b0C \u1781\u17b6\u1784\u179b\u17be\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1796\u178e\u17cc\u1794\u17c3\u178f\u1784\/\u1781\u17c0\u179c\u1793\u17c5\u179b\u17be\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5<\/td>\n<td style=\"padding: 8px;\">\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1792\u1798\u17d2\u1798\u178f\u17b6; \u17af\u1780\u179f\u17b6\u179a\u1798\u17bc\u179b\u178a\u17d2\u178b\u17b6\u1793<\/td>\n<td style=\"padding: 8px;\">\u1787\u17b6\u1794\u17d2\u179a\u1785\u17b6\u17c6<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>10-20\u00b0C \u1781\u17b6\u1784\u179b\u17be\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1796\u178e\u17cc\u179b\u17bf\u1784\u1793\u17c5\u179b\u17be\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5<\/td>\n<td style=\"padding: 8px;\">\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1793\u17b7\u1793\u17d2\u1793\u17b6\u1780\u17b6\u179a; \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1790\u17b6\u1798\u1796\u179b\u1795\u17d2\u1791\u17bb\u1780\u1782\u17ba\u179f\u17d2\u1790\u17b7\u178f\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1780\u1798\u17d2\u179a\u17b7\u178f<\/td>\n<td style=\"padding: 8px;\">\u17a2\u17b6\u1791\u17b7\u1797\u17b6\u1796\u1791\u17b6\u1794<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>20-30\u00b0C \u1781\u17b6\u1784\u179b\u17be\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1796\u178e\u17cc\u1791\u17b9\u1780\u1780\u17d2\u179a\u17bc\u1785\u1793\u17c5\u179b\u17be\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5<\/td>\n<td style=\"padding: 8px;\">\u179f\u17ca\u17be\u1794\u17a2\u1784\u17d2\u1780\u17c1\u178f\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb; \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u1780\u1798\u17d2\u179b\u17b6\u17c6\u1784\u1794\u1784\u17d2\u179c\u17b7\u179b\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799; \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1791\u17c6\u17a0\u17c6 conductor<\/td>\n<td style=\"padding: 8px;\">\u17a2\u17b6\u1791\u17b7\u1797\u17b6\u1796\u1798\u1792\u17d2\u1799\u1798<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>30-40\u00b0C \u1781\u17b6\u1784\u179b\u17be\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1796\u178e\u17cc\u1780\u17d2\u179a\u17a0\u1798\u1793\u17c5\u179b\u17be\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5<\/td>\n<td style=\"padding: 8px;\">\u1780\u17c6\u178e\u178f\u17cb\u1796\u17c1\u179b\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1797\u17d2\u179b\u17b6\u1798\u17d7; \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb\u179a\u179b\u17bb\u1784 \u1780\u17b6\u179a corrosion \u17ac\u1780\u17b6\u179a\u1795\u17d2\u1791\u17bb\u1780\u179b\u17be\u179f\u1791\u1798\u17d2\u1784\u1793\u17cb<\/td>\n<td style=\"padding: 8px;\">\u17a2\u17b6\u1791\u17b7\u1797\u17b6\u1796\u1781\u17d2\u1796\u179f\u17cb<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>&gt;40\u00b0C \u179b\u17be\u179f\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1796\u178e\u17cc\u1780\u17d2\u179a\u17a0\u1798\u1785\u17b6\u179f\u17cb\/\u179f \u179b\u17be\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5<\/td>\n<td style=\"padding: 8px;\"><strong>\u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u179f\u1780\u1798\u17d2\u1798\u1797\u17b6\u1796\u1787\u17b6\u1794\u1793\u17d2\u1791\u17b6\u1793\u17cb<\/strong>; \u1782\u17d2\u179a\u17c4\u17c7\u1790\u17d2\u1793\u17b6\u1780\u17cb\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u178a\u17c2\u179b\u17a2\u17b6\u1785\u1780\u17be\u178f\u1798\u17b6\u1793; \u179a\u17c0\u1794\u1785\u17c6\u1795\u17c2\u1793\u1780\u17b6\u179a\u1787\u17c6\u1793\u17bd\u179f<\/td>\n<td style=\"padding: 8px;\">\u179a\u17b7\u17c7\u1782\u1793\u17cb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u179b\u17d2\u17a2\u1794\u17c6\u1795\u17bb\u178f\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u179f\u17d2\u1780\u17c1\u1793 IR<\/strong>:<\/p>\n<ul>\n<li>\u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u179f\u17d2\u1790\u17b7\u178f\u179f\u17d2\u1790\u17c1\u179a\u1799\u17c9\u17b6\u1784\u178f\u17b7\u1785 3 \u1798\u17c9\u17c4\u1784 \u1798\u17bb\u1793\u1796\u17c1\u179b\u179f\u17d2\u1780\u17c1\u1793<\/li>\n<li>\u179c\u17b6\u179f\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u178a\u17c4\u1799\u17a1\u17c2\u1780\u1796\u17b8\u1782\u17d2\u1793\u17b6 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1782\u178e\u1793\u17b6 \u0394T \u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c<\/li>\n<li>\u1794\u17d2\u179a\u17c0\u1794\u1792\u17c0\u1794\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u1780\u17d2\u179a\u17c4\u1798\u1794\u1793\u17d2\u1791\u17bb\u1780\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u178a\u17be\u1798\u17d2\u1794\u17b8\u1780\u17c6\u178e\u178f\u17cb\u17a2\u178f\u17d2\u178f\u179f\u1789\u17d2\u1789\u17b6\u178e\u179c\u178f\u17d2\u1790\u17bb\u1781\u17bb\u179f\u1794\u17d2\u179a\u1780\u17d2\u179a\u178f\u17b8<\/li>\n<li>\u1780\u178f\u17cb\u178f\u17d2\u179a\u17b6\u178f\u1798\u17d2\u179b\u17c3\u178f\u17b6\u1798\u1796\u17c1\u179b\u179c\u17c1\u179b\u17b6 \u178a\u17be\u1798\u17d2\u1794\u17b8\u1780\u17c6\u178e\u178f\u17cb\u1793\u17b7\u1793\u17d2\u1793\u17b6\u1780\u17b6\u179a\u1781\u17d2\u179f\u17c4\u17c7\u1787\u17b8\u179c\u1787\u17b6\u178f\u17b7<\/li>\n<li>\u1796\u17b7\u1785\u17b6\u179a\u178e\u17b6\u1780\u17b6\u179a\u1780\u17c6\u178e\u178f\u17cb Emissivity (\u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6 0.95 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1795\u17d2\u1791\u17c3\u179b\u17b6\u1794\u1796\u178e\u17cc, 0.3-0.5 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1791\u1784\u17cb\u178a\u17c2\u1784\u1791\u1791\u17c1)<\/li>\n<\/ul>\n<h2>\u1780\u17b6\u179a\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1780\u17d2\u178f\u17c5<\/h2>\n<p>\u1793\u17c5\u1796\u17c1\u179b\u178a\u17c2\u179b\u1780\u17b6\u179a\u1790\u178f\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5 \u17ac\u1780\u17b6\u179a\u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u179a\u17b6\u1784\u1780\u17b6\u1799\u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1780\u17be\u1793\u17a1\u17be\u1784 \u1780\u17b6\u179a\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6\u1787\u17b6\u1794\u17d2\u179a\u1796\u17d0\u1793\u17d2\u1792\u1782\u17ba\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u17d4.<\/p>\n<h3>\u178f\u17b6\u179a\u17b6\u1784\u1791\u17b8 5: \u1798\u1782\u17d2\u1782\u17bb\u1791\u17d2\u1791\u17c1\u179f\u1780\u17cd\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6 - \u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1792\u17c0\u1794\u1793\u17b9\u1784\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u179a\u17c4\u1782\u179c\u17b7\u1793\u17b7\u1785\u17d2\u1786\u17d0\u1799\u1794\u1789\u17d2\u17a0\u17b6<\/h3>\n<table border=\"1\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u179a\u17c4\u1782\u179f\u1789\u17d2\u1789\u17b6<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u1791\u17c6\u1793\u1784\u1787\u17b6\u1798\u17bc\u179b\u17a0\u17c1\u178f\u17bb<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u1787\u17c6\u17a0\u17b6\u1793\u1792\u17d2\u179c\u17be\u179a\u17c4\u1782\u179c\u17b7\u1793\u17b7\u1785\u17d2\u1786\u17d0\u1799<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u178a\u17c6\u178e\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u1780\u17d2\u178f\u17c5\u178f\u17c2\u1794\u17c9\u17bb\u178e\u17d2\u178e\u17c4\u17c7<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb\u179a\u179b\u17bb\u1784, conductor \u178f\u17bc\u1785\u1796\u17c1\u1780, \u179f\u1793\u17d2\u179b\u17b6\u1780\u17cb\u1792\u1793\u17cb\u1791\u17d2\u179a\u17b6\u17c6\u1781\u17d2\u1796\u179f\u17cb<\/td>\n<td style=\"padding: 8px;\">\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 Torque; \u178f\u17d2\u179a\u17bd\u178f\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u179a\u1780\u1798\u17be\u179b corrosion; \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb ampacity conductor<\/td>\n<td style=\"padding: 8px;\">\u179a\u17b9\u178f\u1794\u1793\u17d2\u178f\u17b9\u1784\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17a1\u17be\u1784\u179c\u17b7\u1789; \u179f\u1798\u17d2\u17a2\u17b6\u178f\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784; \u1794\u1784\u17d2\u1780\u17be\u1793\u1791\u17c6\u17a0\u17c6 conductor \u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u178f\u17bd\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1780\u17d2\u178f\u17c5<\/strong><\/td>\n<td style=\"padding: 8px;\">\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1795\u17d2\u1791\u17bb\u1780\u179b\u17be\u179f\u1791\u1798\u17d2\u1784\u1793\u17cb, bimetal \u1781\u17d2\u179f\u17c4\u17c7\u1787\u17b8\u179c\u1787\u17b6\u178f\u17b7, \u1796\u17b6\u1780\u17cb\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784<\/td>\n<td style=\"padding: 8px;\">\u179c\u17b6\u179f\u17cb\u1785\u179a\u1793\u17d2\u178f\u1795\u17d2\u1791\u17bb\u1780\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784; \u1794\u17d2\u179a\u17c0\u1794\u1792\u17c0\u1794\u1791\u17c5\u1793\u17b9\u1784\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8; \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u1781\u17d2\u179f\u17c2\u1780\u17c4\u1784\u1792\u17d2\u179c\u17be\u178a\u17c6\u178e\u17be\u179a<\/td>\n<td style=\"padding: 8px;\">\u1794\u1793\u17d2\u1790\u1799\u1794\u1793\u17d2\u1791\u17bb\u1780; \u1787\u17c6\u1793\u17bd\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 \u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be\u1787\u17b7\u178f\u178a\u179b\u17cb\u1785\u17bb\u1784\u1794\u1789\u17d2\u1785\u1794\u17cb\u1793\u17c3\u17a2\u17b6\u1799\u17bb\u1780\u17b6\u179b<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u178a\u17c3\u1780\u17d2\u178f\u17c5<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1780\u17b6\u179a\u1795\u17d2\u1791\u17c1\u179a\u1780\u17c6\u178a\u17c5\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u1796\u17b8\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784\/bimetal (\u1792\u1798\u17d2\u1798\u178f\u17b6\u178a\u179b\u17cb\u1780\u1798\u17d2\u179a\u17b7\u178f\u1781\u17d2\u179b\u17c7)<\/td>\n<td style=\"padding: 8px;\">\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17c3\u1782\u17ba <60\u00b0C (metallic) or <85\u00b0C (non-metallic)<\/td>\n<td style=\"padding: 8px;\">\u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be\u179f\u17d2\u1790\u17b7\u178f\u1780\u17d2\u1793\u17bb\u1784\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb \u1782\u17d2\u1798\u17b6\u1793\u179f\u1780\u1798\u17d2\u1798\u1797\u17b6\u1796; \u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be\u179b\u17be\u179f, \u1787\u17c6\u1793\u17bd\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1794\u1793\u17d2\u1791\u17c7\u1791\u17b6\u17c6\u1784\u1798\u17bc\u179b\u1780\u17d2\u178f\u17c5<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1781\u17d2\u1799\u179b\u17cb\u1785\u17c1\u1789\u1785\u17bc\u179b\u1798\u17b7\u1793\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb, \u1780\u17b6\u179a\u178a\u17b6\u1780\u17cb\u1787\u17b6\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17bd\u179f\u1794\u17d2\u179a\u1798\u17b6\u178e, \u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1781\u17d2\u1796\u179f\u17cb<\/td>\n<td style=\"padding: 8px;\">\u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u1798\u17be\u179b\u1781\u17d2\u1799\u179b\u17cb\u1785\u17c1\u1789\u1785\u17bc\u179b enclosure; \u179c\u17b6\u179f\u17cb\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1793\u17c5\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7; \u1796\u17b7\u1793\u17b7\u178f\u17d2\u1799\u17a1\u17be\u1784\u179c\u17b7\u1789 <a href=\"https:\/\/test.viox.com\/km\/circuit-breaker-altitude-derating-guide\/\">\u1780\u178f\u17d2\u178f\u17b6\u1780\u17c6\u178e\u178f\u17cb\u1780\u1798\u17d2\u179a\u17b7\u178f<\/a><\/td>\n<td style=\"padding: 8px;\">\u1792\u17d2\u179c\u17be\u17b1\u17d2\u1799\u1794\u17d2\u179a\u179f\u17be\u179a\u17a1\u17be\u1784\u1793\u17bc\u179c\u1781\u17d2\u1799\u179b\u17cb\u1785\u17c1\u1789\u1785\u17bc\u179b; \u1794\u1793\u17d2\u1790\u17c2\u1798\u1780\u17b6\u179a\u178f\u17d2\u179a\u1787\u17b6\u1780\u17cb; derate \u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 \u1799\u17c4\u1784\u178f\u17b6\u1798 NEC\/IEC<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1798\u17bd\u1799\u1780\u17d2\u178f\u17c5\u1781\u17d2\u179b\u17b6\u17c6\u1784\u1787\u17b6\u1784\u17a2\u17d2\u1793\u1780\u1787\u17b7\u178f\u1781\u17b6\u1784\u178a\u17bc\u1785\u1782\u17d2\u1793\u17b6<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1796\u17b7\u1780\u17b6\u179a\u1797\u17b6\u1796\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784, \u1780\u17b6\u179a\u1781\u17d2\u179f\u17c4\u17c7\u1782\u17bb\u178e\u1797\u17b6\u1796\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784, \u1780\u17b6\u179a\u179a\u179f\u17b6\u178f\u17cb\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f<\/td>\n<td style=\"padding: 8px;\">\u1794\u17d2\u179a\u17c0\u1794\u1792\u17c0\u1794\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1793\u17c3\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u1780\u17d2\u179a\u17c4\u1798\u1794\u1793\u17d2\u1791\u17bb\u1780\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6<\/td>\n<td style=\"padding: 8px;\">\u1787\u17c6\u1793\u17bd\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c2\u179b\u179f\u1784\u17d2\u179f\u17d0\u1799; \u179f\u17ca\u17be\u1794\u17a2\u1784\u17d2\u1780\u17c1\u178f\u1798\u17bc\u179b\u17a0\u17c1\u178f\u17bb\u17ab\u179f\u1782\u179b\u17cb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u1796\u17c1\u179b\u178e\u17b6\u178f\u17d2\u179a\u17bc\u179c\u1787\u17c6\u1793\u17bd\u179f<\/strong>: \u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1787\u17b6\u1794\u17cb\u179b\u17b6\u1794\u17cb\u179b\u17be\u179f\u1796\u17b8\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179a\u1794\u179f\u17cb\u179c\u17b6 \u179f\u17bc\u1798\u17d2\u1794\u17b8\u178f\u17c2\u179f\u17d2\u1790\u17b7\u178f\u1780\u17d2\u179a\u17c4\u1798\u1780\u17b6\u179b\u17c8\u1791\u17c1\u179f\u17c8\u1795\u17d2\u1791\u17bb\u1780\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u1780\u17cf\u178a\u17c4\u1799 \u1780\u17b6\u179a\u1787\u17c6\u1793\u17bd\u179f\u1782\u17ba\u1785\u17b6\u17c6\u1794\u17b6\u1785\u17cb\u17d4 \u1780\u17b6\u179a\u1794\u1793\u17d2\u178f\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c2\u179b\u17a1\u17be\u1784\u1780\u17c6\u178a\u17c5\u1781\u17d2\u179b\u17b6\u17c6\u1784 \u17a0\u17b6\u1793\u17b7\u1797\u17d0\u1799\u1793\u17c3\u1780\u17b6\u179a\u1794\u179a\u17b6\u1787\u17d0\u1799\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb \u1797\u17d2\u179b\u17be\u1784 \u17ac\u1780\u17b6\u179a\u1794\u17b6\u178f\u17cb\u1794\u1784\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179b\u17be\u179f\u1785\u179a\u1793\u17d2\u178f\u17d4 \u179f\u17d2\u179c\u17c2\u1784\u1799\u179b\u17cb\u1794\u1793\u17d2\u1790\u17c2\u1798\u17a2\u17c6\u1796\u17b8 <a href=\"https:\/\/test.viox.com\/km\/how-to-know-if-circuit-breaker-is-bad\/\">\u1780\u17b6\u179a\u1780\u17c6\u178e\u178f\u17cb\u17a2\u178f\u17d2\u178f\u179f\u1789\u17d2\u1789\u17b6\u178e\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1798\u17b7\u1793\u179b\u17d2\u17a2<\/a>.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Temperature-troubleshooting-flowchart---Decision-tree-with-color-coded-severity-levels.webp\" alt=\"Temperature-based troubleshooting flowchart for VIOX MCB and MCCB thermal issues\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; margin-top: 8px;\">\u179a\u17bc\u1794\u1797\u17b6\u1796\u1791\u17b8 5: \u1782\u17c6\u1793\u17bc\u179f\u179b\u17c6\u17a0\u17bc\u179a\u1792\u17d2\u179c\u17be\u179a\u17c4\u1782\u179c\u17b7\u1793\u17b7\u1785\u17d2\u1786\u17d0\u1799\u1787\u17b6\u1787\u17c6\u17a0\u17b6\u1793 \u17d7 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u178a\u17c4\u17c7\u179f\u17d2\u179a\u17b6\u1799\u1794\u1789\u17d2\u17a0\u17b6\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1780\u17be\u1793\u17a1\u17be\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784 VIOX MCBs \u1793\u17b7\u1784 MCCBs \u17d4.<\/figcaption><\/figure>\n<h2>\u1797\u17b6\u1796\u1786\u1794\u1782\u17d2\u1793\u17b6\u1793\u17c3\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb Conductor<\/h2>\n<p>\u1791\u17b7\u178a\u17d2\u178b\u1797\u17b6\u1796\u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb \u1794\u17c9\u17bb\u1793\u17d2\u178f\u17c2\u1787\u17b6\u179a\u17bf\u1799\u17d7\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1782\u17c1\u1798\u17be\u179b\u179a\u17c6\u179b\u1784\u1793\u17c3\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 \u1782\u17ba\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784\u179a\u1794\u179f\u17cb\u1796\u17bd\u1780\u1782\u17c1\u1791\u17c5\u1793\u17b9\u1784\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u17d4 \u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a NEC \u1793\u17b7\u1784 IEC \u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u178f\u17d2\u179a\u17bc\u179c\u1782\u17d2\u1793\u17b6 \u17ac\u179b\u17be\u179f\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17d4.<\/p>\n<p><strong>\u1794\u17d2\u179a\u1797\u17c1\u1791\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb Conductor \u1791\u17bc\u1791\u17c5<\/strong>:<\/p>\n<ul>\n<li><strong>60\u00b0C (140\u00b0F)<\/strong>: TW, UF (\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u1785\u17b6\u179f\u17cb\u1787\u17b6\u1784)<\/li>\n<li><strong>75\u00b0C (167\u00b0F)<\/strong>: THW, THWN, RHW, USE<\/li>\n<li><strong>90\u00b0C (194\u00b0F)<\/strong>: THHN, THWN-2, XHHW-2, RHH, RHW-2<\/li>\n<\/ul>\n<p>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a \u1787\u17b6\u1798\u17bd\u1799\u1793\u17b9\u1784\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 50\u00b0C (90\u00b0C \u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1793\u17c5 40\u00b0C \u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789), \u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb 90\u00b0C \u1795\u17d2\u178f\u179b\u17cb\u1793\u17bc\u179c\u179a\u17b9\u1798\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb\u17d4 \u1791\u17c4\u17c7\u1799\u17c9\u17b6\u1784\u178e\u17b6\u1780\u17cf\u178a\u17c4\u1799 \u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb 60\u00b0C \u1793\u17b9\u1784\u1798\u17b7\u1793\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb\u1791\u17c1 \u17a0\u17be\u1799\u17a2\u17b6\u1785\u1794\u179a\u17b6\u1787\u17d0\u1799\u1798\u17bb\u1793\u17a2\u17b6\u1799\u17bb\u17d4.<\/p>\n<p><strong>\u1785\u17d2\u1794\u17b6\u1794\u17cb\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/strong>: \u178f\u17c2\u1784\u178f\u17c2\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1790\u17b6\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u2265 \u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799 \u1780\u17d2\u179a\u17c4\u1798\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u178a\u17c2\u179b\u179a\u17c6\u1796\u17b9\u1784\u1791\u17bb\u1780\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u17d4 \u1793\u17c1\u17c7\u1798\u17b6\u1793\u179f\u17b6\u179a\u17c8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u1787\u17b6\u1796\u17b7\u179f\u17c1\u179f\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u1799\u17b6\u1780\u17b6\u179f\u1780\u17d2\u178f\u17c5 \u17ac\u1793\u17c5\u1796\u17c1\u179b\u1794\u17d2\u179a\u17be <a href=\"https:\/\/test.viox.com\/km\/current-limiting-circuit-breaker-guide\/\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1785\u179a\u1793\u17d2\u178f\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3 100%<\/a>.<\/p>\n<h2>\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a IEC vs UL: \u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb<\/h2>\n<p>\u1781\u178e\u17c8\u1796\u17c1\u179b\u178a\u17c2\u179b IEC 60947-2 \u1793\u17b7\u1784 UL 489 \u1785\u17c2\u1780\u179a\u17c6\u179b\u17c2\u1780\u1782\u17c4\u179b\u1794\u17c6\u178e\u1784\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb\u1798\u17bd\u1799\u1785\u17c6\u1793\u17bd\u1793\u1794\u17c9\u17c7\u1796\u17b6\u179b\u17cb\u178a\u179b\u17cb\u1780\u17b6\u179a\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u1795\u179b\u17b7\u178f\u1795\u179b:<\/p>\n<table border=\"1\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u1791\u17b7\u178a\u17d2\u178b\u1797\u17b6\u1796<\/th>\n<th style=\"padding: 8px; text-align: left;\">IEC 60947-2<\/th>\n<th style=\"padding: 8px; text-align: left;\">UL 489<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u1795\u179b\u1794\u17c9\u17c7\u1796\u17b6\u179b\u17cb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1799\u17c4\u1784\u1787\u17bb\u17c6\u179c\u17b7\u1789<\/strong><\/td>\n<td style=\"padding: 8px;\">40\u00b0C (\u17a2\u17b6\u1785\u1794\u17d2\u179a\u17c2\u1794\u17d2\u179a\u17bd\u179b)<\/td>\n<td style=\"padding: 8px;\">40\u00b0C (\u1790\u17c1\u179a)<\/td>\n<td style=\"padding: 8px;\">IEC \u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f\u1794\u17d2\u179a\u1780\u17b6\u179f\u17af\u1780\u179f\u17b6\u179a\u1799\u17c4\u1784<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799<\/strong><\/td>\n<td style=\"padding: 8px;\">\u17a2\u17b6\u179f\u17d2\u179a\u17d0\u1799\u179b\u17be\u179f\u1798\u17d2\u1797\u17b6\u179a\u17c8 (50-70\u00b0C)<\/td>\n<td style=\"padding: 8px;\">\u1790\u17c1\u179a (\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a 50\u00b0C, 60\u00b0C \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb 100%)<\/td>\n<td style=\"padding: 8px;\">IEC \u1780\u17b6\u1793\u17cb\u178f\u17c2\u1794\u178f\u17cb\u1794\u17c2\u1793\u178a\u17c4\u1799\u1795\u17d2\u17a2\u17c2\u1780\u179b\u17be\u1780\u17b6\u179a\u179f\u17b6\u1784\u179f\u1784\u17cb\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1780\u17b6\u179a\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f Enclosure<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1794\u17b6\u1793\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784 enclosure \u178f\u17c6\u178e\u17b6\u1784<\/td>\n<td style=\"padding: 8px;\">\u1794\u17b6\u1793\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784 enclosure \u178f\u17bc\u1785\u1794\u17c6\u1795\u17bb\u178f\u178a\u17c2\u179b\u17a2\u17b6\u1785\u1792\u17d2\u179c\u17be\u1791\u17c5\u1794\u17b6\u1793<\/td>\n<td style=\"padding: 8px;\">UL \u17a2\u17b6\u1785\u1798\u17b6\u1793\u179b\u1780\u17d2\u1781\u178e\u17c8\u17a2\u1797\u17b7\u179a\u1780\u17d2\u179f\u1793\u17b7\u1799\u1798\u1780\u17b6\u1793\u17cb\u178f\u17c2\u1785\u17d2\u179a\u17be\u1793<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1780\u17b6\u179a\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u1787\u17b6\u1794\u1793\u17d2\u178f\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb<\/strong><\/td>\n<td style=\"padding: 8px;\">100% \u1794\u1793\u17d2\u178f\u178a\u17c4\u1799\u179b\u17c6\u1793\u17b6\u17c6\u178a\u17be\u1798<\/td>\n<td style=\"padding: 8px;\">80% \u1794\u1793\u17d2\u178f \u179b\u17bb\u17c7\u178f\u17d2\u179a\u17b6\u178f\u17c2\u1798\u17b6\u1793\u179f\u1789\u17d2\u1789\u17b6 100%<\/td>\n<td style=\"padding: 8px;\">\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8 IEC \u1787\u17b6\u1791\u17bc\u1791\u17c5\u179a\u17b9\u1784\u1798\u17b6\u17c6\u1787\u17b6\u1784\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u178f\u1796\u17d2\u179c\u1780\u17b7\u1785\u17d2\u1785\u1794\u1793\u17d2\u178f\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u1780\u17b6\u178f\u17cb\u1794\u1793\u17d2\u1790\u1799\u1794\u1793\u17d2\u1791\u17bb\u1780<\/strong><\/td>\n<td style=\"padding: 8px;\">\u1781\u17d2\u179f\u17c2\u1780\u17c4\u1784\u178a\u17c2\u179b\u1795\u17d2\u178f\u179b\u17cb\u178a\u17c4\u1799\u1780\u17d2\u179a\u17bb\u1798\u17a0\u17ca\u17bb\u1793\u1795\u179b\u17b7\u178f<\/td>\n<td style=\"padding: 8px;\">NEC \u1795\u17d2\u178f\u179b\u17cb\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f<\/td>\n<td style=\"padding: 8px;\">\u179c\u17b7\u1792\u17b8\u179f\u17b6\u179f\u17d2\u179a\u17d2\u178f\u1795\u17d2\u179f\u17c1\u1784\u1782\u17d2\u1793\u17b6\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u178a\u17c2\u179b\u1798\u17b6\u1793\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1781\u17d2\u1796\u179f\u17cb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a2\u17d2\u1793\u1780\u179f\u17b6\u1784\u179f\u1784\u17cb\u1794\u1793\u17d2\u1791\u17c7\u178a\u17c2\u179b\u1794\u1798\u17d2\u179a\u17be\u1791\u17b8\u1795\u17d2\u179f\u17b6\u179a\u179f\u1780\u179b VIOX \u1795\u17d2\u178f\u179b\u17cb\u1787\u17bc\u1793\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c2\u179b\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb\u178f\u17b6\u1798\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1791\u17b6\u17c6\u1784\u1796\u17b8\u179a \u1792\u17b6\u1793\u17b6\u1794\u17b6\u1793\u1793\u17bc\u179c\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179b\u17c4\u1798\u178f\u17b6\u1798\u178a\u17c4\u1799\u1798\u17b7\u1793\u1782\u17b7\u178f\u1796\u17b8\u1791\u17b8\u178f\u17b6\u17c6\u1784\u178a\u17c6\u17a1\u17be\u1784\u17d4 \u179a\u1794\u179f\u17cb\u1799\u17be\u1784 <a href=\"https:\/\/test.viox.com\/km\/quality-assurance-in-mcb-manufacturing\/\">\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1792\u17b6\u1793\u17b6\u1782\u17bb\u178e\u1797\u17b6\u1796<\/a> \u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1780\u1798\u17d2\u178a\u17c5\u1785\u17c6\u1796\u17c4\u17c7\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u178a\u17cf\u178f\u17b9\u1784\u179a\u17b9\u1784\u1794\u17c6\u1795\u17bb\u178f\u17d4.<\/p>\n<h2>\u1782\u17c4\u179b\u1780\u17b6\u179a\u178e\u17cd\u178e\u17c2\u1793\u17b6\u17c6\u17a2\u17c6\u1796\u17b8\u1780\u17b6\u179a\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784<\/h2>\n<p><strong>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a2\u17d2\u1793\u1780\u179f\u17b6\u1784\u179f\u1784\u17cb\u1794\u1793\u17d2\u1791\u17c7<\/strong>:<\/p>\n<ol>\n<li>\u178f\u17c2\u1784\u178f\u17c2\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u1798\u17be\u179b\u1790\u17b6\u178f\u1798\u17d2\u179b\u17c3\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179a\u1794\u179f\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178f\u17d2\u179a\u17bc\u179c\u1793\u17b9\u1784\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u179a\u1794\u179f\u17cb\u17a2\u17d2\u1793\u1780<\/li>\n<li>\u1782\u178e\u1793\u17b6\u1795\u179b\u1794\u17c9\u17c7\u1796\u17b6\u179b\u17cb\u1780\u17c6\u178a\u17c5\u1793\u17c3\u1794\u17d2\u179a\u17a2\u1794\u17cb\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u2014\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u17a2\u17b6\u1785\u1781\u17d2\u1796\u179f\u17cb\u1787\u17b6\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1794\u1793\u17d2\u1791\u1794\u17cb 10-20\u00b0C<\/li>\n<li>\u1794\u17d2\u179a\u17be\u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5\u17a2\u17c6\u17a1\u17bb\u1784\u1796\u17c1\u179b\u178a\u17b6\u1780\u17cb\u17b1\u17d2\u1799\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u178a\u17be\u1798\u17d2\u1794\u17b8\u1794\u1784\u17d2\u1780\u17be\u178f\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1798\u17bc\u179b\u178a\u17d2\u178b\u17b6\u1793<\/li>\n<li>\u17a2\u1793\u17bb\u179c\u178f\u17d2\u178f\u1780\u17b6\u179a\u179f\u17d2\u1780\u17c1\u1793 IR \u1787\u17b6\u1794\u17d2\u179a\u1785\u17b6\u17c6\u1787\u17b6\u1795\u17d2\u1793\u17c2\u1780\u1798\u17bd\u1799\u1793\u17c3\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1790\u17c2\u1791\u17b6\u17c6\u1794\u1784\u17d2\u1780\u17b6\u179a<\/li>\n<li>\u1780\u178f\u17cb\u178f\u17d2\u179a\u17b6\u1780\u17b6\u179a\u17a2\u17b6\u1793\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1791\u17b6\u17c6\u1784\u17a2\u179f\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u179c\u17b7\u1797\u17b6\u1782\u1793\u17b7\u1793\u17d2\u1793\u17b6\u1780\u17b6\u179a<\/li>\n<\/ol>\n<p><strong>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a2\u17d2\u1793\u1780\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd<\/strong>:<\/p>\n<ol>\n<li>\u1780\u17c6\u178e\u178f\u17cb\u1796\u17c1\u179b\u179f\u17d2\u1791\u1784\u17cb\u1798\u178f\u17b7\u1780\u1798\u17d2\u178a\u17c5\u1794\u17d2\u179a\u1785\u17b6\u17c6\u1786\u17d2\u1793\u17b6\u17c6\u1793\u17c3\u17a7\u1794\u1780\u179a\u178e\u17cd\u1785\u17c2\u1780\u1785\u17b6\u1799\u17a2\u1782\u17d2\u1782\u17b7\u179f\u1793\u17b8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7<\/li>\n<li>\u1794\u178e\u17d2\u178f\u17bb\u17c7\u1794\u178e\u17d2\u178f\u17b6\u179b\u1794\u17bb\u1782\u17d2\u1782\u179b\u17b7\u1780\u1790\u17c2\u1791\u17b6\u17c6\u17b1\u17d2\u1799\u179f\u17d2\u1782\u17b6\u179b\u17cb\u179b\u17c6\u1793\u17b6\u17c6\u1780\u1798\u17d2\u178a\u17c5\u1798\u17b7\u1793\u1794\u17d2\u179a\u1780\u17d2\u179a\u178f\u17b8<\/li>\n<li>\u1780\u17c6\u178e\u178f\u17cb\u1780\u1798\u17d2\u179a\u17b7\u178f\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17c2\u179b\u1794\u1784\u17d2\u1780\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u179f\u17ca\u17be\u1794\u17a2\u1784\u17d2\u1780\u17c1\u178f (\u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6 \u0394T &gt; 20\u00b0C)<\/li>\n<li>\u179a\u1780\u17d2\u179f\u17b6\u1791\u17bb\u1780\u1780\u17c6\u178e\u178f\u17cb\u178f\u17d2\u179a\u17b6\u1793\u17c3\u1780\u17b6\u179a\u179f\u17d2\u1780\u17c1\u1793 IR \u178a\u17be\u1798\u17d2\u1794\u17b8\u1780\u17c6\u178e\u178f\u17cb\u1793\u17b7\u1793\u17d2\u1793\u17b6\u1780\u17b6\u179a\u1781\u17d2\u179f\u17c4\u17c7\u1787\u17b8\u179c\u1787\u17b6\u178f\u17b7<\/li>\n<li>\u1792\u17d2\u179c\u17be\u1795\u17c2\u1793\u1780\u17b6\u179a\u1790\u179c\u17b7\u1780\u17b6\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1787\u17c6\u1793\u17bd\u179f\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17c2\u179b\u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u1780\u17b6\u179a\u1781\u17d2\u179f\u17c4\u17c7\u1787\u17b8\u179c\u1787\u17b6\u178f\u17b7\u1780\u1798\u17d2\u178a\u17c5<\/li>\n<\/ol>\n<p><strong>\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<\/strong>:<\/p>\n<ol>\n<li>\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\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\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17a2\u17c6\u17a1\u17bb\u1784\u1796\u17c1\u179b\u178a\u17c6\u17a1\u17be\u1784\u2014\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb\u179a\u179b\u17bb\u1784\u1782\u17ba\u1787\u17b6\u1798\u17bc\u179b\u17a0\u17c1\u178f\u17bb\u1791\u17bc\u1791\u17c5\u1794\u17c6\u1795\u17bb\u178f\u1793\u17c3\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u178a\u17c2\u179b\u1780\u17d2\u178f\u17c5<\/li>\n<li>\u1794\u17d2\u179a\u17be\u179f\u1798\u17b6\u179f\u1792\u17b6\u178f\u17bb\u1794\u17d2\u179a\u1786\u17b6\u17c6\u1784\u17a2\u17bb\u1780\u179f\u17ca\u17b8\u178f\u1780\u1798\u17d2\u1798\u179b\u17be conductors \u17a2\u17b6\u179b\u17bb\u1799\u1798\u17b8\u1789\u17c9\u17bc\u1798\u178a\u17be\u1798\u17d2\u1794\u17b8\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u1793\u17d2\u179b\u17b6\u1780\u17cb\u178a\u17c2\u179b\u1798\u17b6\u1793\u1797\u17b6\u1796\u1792\u1793\u17cb\u1791\u17d2\u179a\u17b6\u17c6\u1781\u17d2\u1796\u179f\u17cb<\/li>\n<li>\u1791\u17bb\u1780\u1785\u1793\u17d2\u179b\u17c4\u17c7\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb\u179a\u179c\u17b6\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u1793\u17d2\u1791\u17c7\u178a\u17be\u1798\u17d2\u1794\u17b8\u179b\u17be\u1780\u1780\u1798\u17d2\u1796\u179f\u17cb\u1780\u17b6\u179a\u179f\u17b6\u1799\u1797\u17b6\u1799\u1780\u17c6\u178a\u17c5<\/li>\n<li>Consider <a href=\"https:\/\/test.viox.com\/km\/mcb-ambient-temperature-ratings-and-derating-factors\/\">\u1780\u17b6\u179a\u1780\u17b6\u178f\u17cb\u1794\u1793\u17d2\u1790\u1799\u1794\u1793\u17d2\u1791\u17bb\u1780\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789<\/a> \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1780\u17d2\u178f\u17c5<\/li>\n<li>\u1780\u178f\u17cb\u178f\u17d2\u179a\u17b6\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u178a\u17c6\u17a1\u17be\u1784\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1787\u17b6\u17af\u1780\u179f\u17b6\u179a\u1799\u17c4\u1784\u1793\u17b6\u1796\u17c1\u179b\u17a2\u1793\u17b6\u1782\u178f<\/li>\n<\/ol>\n<h2>\u179f\u17c6\u178e\u17bd\u179a\u178a\u17c2\u179b\u179f\u17bd\u179a\u1789\u17b9\u1780\u1789\u17b6\u1794\u17cb\u17d6 \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8<\/h2>\n<h3>\u179f\u17c6\u178e\u17bd\u179a\u17d6 \u178f\u17be\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1782\u17ba\u1787\u17b6\u17a2\u17d2\u179c\u17b8?<\/h3>\n<p>\u1785\u1798\u17d2\u179b\u17be\u1799\u17d6 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6\u179f\u17d2\u178a\u1784\u17cb\u178a\u17b6\u179a \u1799\u17c4\u1784\u178f\u17b6\u1798 UL 489 \u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u1798\u17b7\u1793\u1782\u17bd\u179a\u179b\u17be\u179f\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 90\u00b0C (\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 50\u00b0C \u179b\u17be\u179f\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 40\u00b0C)\u17d4 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6 100% \u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1782\u17ba\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 100\u00b0C (\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 60\u00b0C)\u17d4 IEC 60947-2 \u1798\u17b6\u1793\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u1794\u17c9\u17bb\u1793\u17d2\u178f\u17c2\u17a2\u17b6\u1785\u1794\u17d2\u179a\u17c2\u1794\u17d2\u179a\u17bd\u179b\u178a\u17c4\u1799\u1795\u17d2\u17a2\u17c2\u1780\u179b\u17be\u179f\u1798\u17d2\u1797\u17b6\u179a\u17c8\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799 \u1793\u17b7\u1784\u1780\u17b6\u179a\u179f\u17b6\u1784\u179f\u1784\u17cb\u17d4 \u178f\u17c2\u1784\u178f\u17c2\u1795\u17d2\u1791\u17c0\u1784\u1795\u17d2\u1791\u17b6\u178f\u17cb\u179f\u1793\u17d2\u179b\u17b9\u1780\u1791\u17b7\u1793\u17d2\u1793\u1793\u17d0\u1799\u179a\u1794\u179f\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u17d4.<\/p>\n<h3>\u179f\u17c6\u178e\u17bd\u179a\u17d6 \u178f\u17be\u1781\u17d2\u1789\u17bb\u17c6\u178a\u17b9\u1784\u178a\u17c4\u1799\u179a\u1794\u17c0\u1794\u178e\u17b6\u1790\u17b6\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u179a\u1794\u179f\u17cb\u1781\u17d2\u1789\u17bb\u17c6\u1780\u17c6\u1796\u17bb\u1784\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1780\u17d2\u178f\u17c5\u1796\u17c1\u1780?<\/h3>\n<p>\u1785\u1798\u17d2\u179b\u17be\u1799\u17d6 \u1794\u17d2\u179a\u17be\u1780\u17c6\u178a\u17c5\u17a2\u17ca\u17b8\u1793\u17a0\u17d2\u179c\u17d2\u179a\u17b6\u179a\u17c9\u17c1\u178a\u178a\u17be\u1798\u17d2\u1794\u17b8\u179c\u17b6\u179f\u17cb\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179b\u17be\u179f\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u17d4 \u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be \u0394T \u179b\u17be\u179f\u1796\u17b8 30\u00b0C \u179f\u17bc\u1798\u179f\u17ca\u17be\u1794\u17a2\u1784\u17d2\u1780\u17c1\u178f\u1797\u17d2\u179b\u17b6\u1798\u17d7\u17d4 \u179f\u1789\u17d2\u1789\u17b6\u179a\u17bc\u1794\u179c\u1793\u17d2\u178f\u179a\u17bd\u1798\u1798\u17b6\u1793\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb\u1794\u17d2\u179a\u17c2\u1796\u178e\u17cc\u1793\u17c5\u1787\u17b7\u178f\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799 \u1780\u17d2\u179b\u17b7\u1793\u1786\u17c1\u17c7 \u17ac <a href=\"https:\/\/test.viox.com\/km\/circuit-breaker-buzzing-diagnostic-guide\/\">\u179f\u17c6\u17a1\u17c1\u1784\u179a\u17a2\u17ca\u17bc\u179a\u1791\u17b6\u17c6\/\u17a0\u17bd\u1785<\/a>. \u17d4 \u1794\u17d2\u179a\u179f\u17b7\u1793\u1794\u17be\u1785\u17c6\u178e\u17bb\u1785\u1791\u17b6\u1789\u179a\u1794\u179f\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1780\u17d2\u178f\u17c5\u1781\u17d2\u179b\u17b6\u17c6\u1784\u179a\u17a0\u17bc\u178f\u178a\u179b\u17cb\u1798\u17b7\u1793\u179f\u17d2\u179a\u17bd\u179b\u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u1794\u17c9\u17c7 (&gt;60\u00b0C \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u179b\u17c4\u17a0\u17c8 &gt;85\u00b0C \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1795\u17d2\u179b\u17b6\u179f\u17d2\u1791\u17b7\u1780) \u179c\u17b6\u17a2\u17b6\u1785\u1780\u17c6\u1796\u17bb\u1784\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1793\u17c5\u1781\u17b6\u1784\u1780\u17d2\u179a\u17c5\u1794\u17c9\u17b6\u179a\u17c9\u17b6\u1798\u17c9\u17c2\u178f\u17d2\u179a\u1792\u1798\u17d2\u1798\u178f\u17b6\u17d4.<\/p>\n<h3>\u179f\u17c6\u178e\u17bd\u179a\u17d6 \u178f\u17be\u17a2\u17d2\u179c\u17b8\u1787\u17b6\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u179a\u179c\u17b6\u1784\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 \u1793\u17b7\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f?<\/h3>\n<p>\u1785\u1798\u17d2\u179b\u17be\u1799\u17d6 \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 (\u0394T) \u1782\u17ba\u1787\u17b6\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179b\u17be\u179f\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 \u1781\u178e\u17c8\u178a\u17c2\u179b\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1782\u17ba\u1787\u17b6\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17c2\u179b\u1794\u17b6\u1793\u179c\u17b6\u179f\u17cb\u1796\u17b7\u178f\u1794\u17d2\u179a\u17b6\u1780\u178a\u17d4 \u17a7\u1791\u17b6\u17a0\u179a\u178e\u17cd \u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u1793\u17c5 85\u00b0C \u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u1799\u17b6\u1780\u17b6\u179f 40\u00b0C \u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796 45\u00b0C\u17d4 \u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1794\u1789\u17d2\u1787\u17b6\u1780\u17cb\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 \u1796\u17b8\u1796\u17d2\u179a\u17c4\u17c7\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1794\u17d2\u179a\u17c2\u1794\u17d2\u179a\u17bd\u179b \u1794\u17c9\u17bb\u1793\u17d2\u178f\u17c2\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u1780\u17c6\u178e\u178f\u17cb\u1797\u17b6\u1796\u1786\u1794\u1782\u17d2\u1793\u17b6\u1793\u17c3\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb\u17d4.<\/p>\n<h3>\u179f\u17c6\u178e\u17bd\u179a\u17d6 \u178f\u17be\u1781\u17d2\u1789\u17bb\u17c6\u17a2\u17b6\u1785\u1794\u17d2\u179a\u17be\u1781\u17d2\u179f\u17c2\u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6 60\u00b0C \u1793\u17c5\u179b\u17be\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1794\u17b6\u1793\u1791\u17c1?<\/h3>\n<p>\u1785\u1798\u17d2\u179b\u17be\u1799\u17d6 \u1787\u17b6\u1791\u17bc\u1791\u17c5\u1798\u17b7\u1793\u17a2\u17b6\u1785\u1791\u17c1 \u179b\u17bb\u17c7\u178f\u17d2\u179a\u17b6\u178f\u17c2\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179c\u17b6\u1799\u178f\u1798\u17d2\u179b\u17c3\u1787\u17b6\u1796\u17b7\u179f\u17c1\u179f\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1794\u1789\u17d2\u1785\u1794\u17cb 60\u00b0C \u1793\u17b7\u1784\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u1799\u17b6\u1780\u17b6\u179f\u178a\u17c2\u179b\u1794\u17b6\u1793\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u1784\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1791\u17c6\u1793\u17be\u1794\u1797\u17b6\u1782\u1785\u17d2\u179a\u17be\u1793\u179f\u1793\u17d2\u1798\u178f\u1790\u17b6\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u17a2\u1794\u17d2\u1794\u1794\u179a\u1798\u17b6 75\u00b0C\u17d4 \u1787\u17b6\u1798\u17bd\u1799\u1793\u17b9\u1784\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799 50\u00b0C \u1793\u17c5\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 40\u00b0C \u17a2\u17d2\u1793\u1780\u1793\u17b9\u1784\u1788\u17b6\u1793\u178a\u179b\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 90\u00b0C \u178a\u17c2\u179b\u1781\u17d2\u1796\u179f\u17cb\u1787\u17b6\u1784\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb 60\u00b0C\u17d4 \u178f\u17c2\u1784\u178f\u17c2\u1795\u17d2\u1782\u17bc\u1795\u17d2\u1782\u1784 \u17ac\u179b\u17be\u179f\u1796\u17b8\u17a2\u178f\u17d2\u179a\u17b6\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u17d4.<\/p>\n<h3>\u179f\u17c6\u178e\u17bd\u179a\u17d6 \u178f\u17be\u1781\u17d2\u1789\u17bb\u17c6\u1782\u17bd\u179a\u179a\u1784\u17cb\u1785\u17b6\u17c6\u179a\u1799\u17c8\u1796\u17c1\u179b\u1794\u17c9\u17bb\u1793\u17d2\u1798\u17b6\u1793 \u1798\u17bb\u1793\u1796\u17c1\u179b\u1792\u17d2\u179c\u17be\u1780\u17b6\u179a\u17a2\u17b6\u1793 IR \u1793\u17c5\u179b\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784?<\/h3>\n<p>\u1785\u1798\u17d2\u179b\u17be\u1799\u17d6 \u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1794\u1793\u17d2\u178f\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb\u1782\u17d2\u1793\u17b6\u1799\u17c9\u17b6\u1784\u17a0\u17c4\u1785\u178e\u17b6\u179f\u17cb 3 \u1798\u17c9\u17c4\u1784\u1793\u17c5\u1794\u1793\u17d2\u1791\u17bb\u1780\u1790\u17c1\u179a\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17be\u1798\u17d2\u1794\u17b8\u1788\u17b6\u1793\u178a\u179b\u17cb\u179b\u17c6\u1793\u17b9\u1784\u1780\u1798\u17d2\u178a\u17c5\u17d4 \u1798\u17c9\u17b6\u179f\u17cb\u1780\u1798\u17d2\u178a\u17c5\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784 \u1793\u17b7\u1784\u1794\u17d2\u179a\u17a2\u1794\u17cb\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u178f\u17d2\u179a\u17bc\u179c\u1785\u17c6\u178e\u17b6\u1799\u1796\u17c1\u179b\u178a\u17be\u1798\u17d2\u1794\u17b8\u179a\u1780\u17d2\u179f\u17b6\u179b\u17c6\u1793\u17b9\u1784\u17d4 \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u179c\u17b6\u179f\u17cb\u179c\u17c2\u1784\u179f\u17c6\u1781\u17b6\u1793\u17cb\u17d7 4-6 \u1798\u17c9\u17c4\u1784\u1782\u17ba\u179b\u17d2\u17a2\u1787\u17b6\u1784\u17d4 \u1780\u17b6\u179a\u17a2\u17b6\u1793\u1786\u17b6\u1794\u17cb\u1796\u17c1\u1780\u1793\u17b9\u1784\u1794\u17c9\u17b6\u1793\u17cb\u179f\u17d2\u1798\u17b6\u1793\u1798\u17b7\u1793\u178a\u179b\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784\u17d4.<\/p>\n<h3>\u179f\u17c6\u178e\u17bd\u179a\u17d6 \u178f\u17be UL 489 \u1793\u17b7\u1799\u17b6\u1799\u17a2\u17d2\u179c\u17b8\u1781\u17d2\u179b\u17c7\u17a2\u17c6\u1796\u17b8\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6 100%?<\/h3>\n<p>\u1785\u1798\u17d2\u179b\u17be\u1799\u17d6 \u1780\u1790\u17b6\u1781\u178e\u17d2\u178c UL 489 7.1.4.3.3 \u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6 100% \u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179a\u17a0\u17bc\u178f\u178a\u179b\u17cb 60\u00b0C (\u1792\u17c0\u1794\u1793\u17b9\u1784 50\u00b0C \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a) \u178a\u17c2\u179b\u1794\u178e\u17d2\u178f\u17b6\u179b\u17b1\u17d2\u1799\u1798\u17b6\u1793\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 100\u00b0C \u1793\u17c5\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 40\u00b0C\u17d4 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1791\u17b6\u17c6\u1784\u1793\u17c1\u17c7\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179f\u1798\u17d2\u1782\u17b6\u179b\u17cb\u1787\u17b6\u1796\u17b7\u179f\u17c1\u179f\u1790\u17b6 \u201c\u179f\u17b6\u1780\u179f\u1798\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1794\u1793\u17d2\u178f\u1793\u17c5 100% \u1793\u17c3\u17a2\u178f\u17d2\u179a\u17b6\u201d \u17a0\u17be\u1799\u1787\u17b6\u1792\u1798\u17d2\u1798\u178f\u17b6\u1798\u17b6\u1793\u179b\u1780\u17d2\u1781\u178e\u17c8\u1796\u17b7\u179f\u17c1\u179f\u1793\u17c3\u1780\u17b6\u179a\u179a\u1785\u1793\u17b6\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u178a\u17c2\u179b\u1794\u17d2\u179a\u179f\u17be\u179a\u17a1\u17be\u1784 \u1793\u17b7\u1784\u1780\u17b6\u179a\u179f\u17b6\u1799\u1797\u17b6\u1799\u1780\u17c6\u178a\u17c5\u17d4.<\/p>\n<h2>\u1782\u1793\u17d2\u179b\u17b9\u17c7\u200b\u1799\u1780<\/h2>\n<ul>\n<li><strong>\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1798\u17b6\u1793\u179f\u17b6\u179a\u17c8\u179f\u17c6\u1781\u17b6\u1793\u17cb\u1785\u17c6\u1796\u17c4\u17c7\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796<\/strong>\u17d6 UL 489 \u1793\u17b7\u1784 IEC 60947-2 \u1794\u1784\u17d2\u1780\u17be\u178f\u178f\u1798\u17d2\u179b\u17c3\u1793\u17c3\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17a2\u178f\u17b7\u1794\u179a\u1798\u17b6 \u178a\u17be\u1798\u17d2\u1794\u17b8\u1780\u17b6\u179a\u1796\u17b6\u179a\u1780\u17b6\u179a\u1794\u179a\u17b6\u1787\u17d0\u1799\u1793\u17c3\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb \u1780\u17b6\u179a\u1781\u17d2\u179f\u17c4\u17c7\u1787\u17b8\u179c\u1787\u17b6\u178f\u17b7\u1793\u17c3\u1791\u17c6\u1793\u17b6\u1780\u17cb\u1791\u17c6\u1793\u1784 \u1793\u17b7\u1784\u1782\u17d2\u179a\u17c4\u17c7\u1790\u17d2\u1793\u17b6\u1780\u17cb\u1797\u17d2\u179b\u17be\u1784\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u17d4.<\/li>\n<li><strong>\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u1792\u17c0\u1794\u1793\u17b9\u1784 100% \u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u178f\u17d2\u179a\u17b9\u1798 10\u00b0C<\/strong>\u17d6 \u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799 50\u00b0C (\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 90\u00b0C \u1793\u17c5\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 40\u00b0C) \u1781\u178e\u17c8\u178a\u17c2\u179b\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6 100% \u17a2\u1793\u17bb\u1789\u17d2\u1789\u17b6\u178f\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784 60\u00b0C (\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f 100\u00b0C) \u178a\u17c2\u179b\u1787\u17b6\u1797\u17b6\u1796\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u178a\u17cf\u179f\u17c6\u1781\u17b6\u1793\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u178a\u17c2\u179b\u1798\u17b6\u1793\u1780\u17b6\u178f\u1796\u17d2\u179c\u1780\u17b7\u1785\u17d2\u1785\u1794\u1793\u17d2\u178f\u17d4.<\/li>\n<li><strong>\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f = \u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789 + \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784<\/strong>\u17d6 \u178f\u17c2\u1784\u178f\u17c2\u1782\u178e\u1793\u17b6\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u178a\u17b6\u1785\u17cb\u1781\u17b6\u178f\u178a\u17c4\u1799\u1795\u17d2\u17a2\u17c2\u1780\u179b\u17be\u179b\u1780\u17d2\u1781\u1781\u178e\u17d2\u178c\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784 \u1798\u17b7\u1793\u178f\u17d2\u179a\u17b9\u1798\u178f\u17c2\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1780\u17d2\u179a\u17b7\u178f\u178f\u17b6\u1798\u1781\u17d2\u1793\u17b6\u178f\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a 40\u00b0C \u1794\u17c9\u17bb\u178e\u17d2\u178e\u17c4\u17c7\u1791\u17c1 \u1787\u17b6\u1796\u17b7\u179f\u17c1\u179f\u1793\u17c5\u1780\u17d2\u1793\u17bb\u1784\u1794\u179a\u17b7\u179f\u17d2\u1790\u17b6\u1793\u1780\u17d2\u178f\u17c5\u17d4.<\/li>\n<li><strong>\u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb conductor \u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u178f\u17d2\u179a\u17bc\u179c\u1782\u17d2\u1793\u17b6\u1793\u17b9\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799<\/strong>\u17d6 \u1794\u17d2\u179a\u17be conductors \u178a\u17c2\u179b\u1798\u17b6\u1793\u17a2\u178f\u17d2\u179a\u17b6 90\u00b0C (THHN, XHHW-2) \u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u1791\u17c6\u1793\u17be\u1794\u17d4 \u17a2\u17ca\u17b8\u179f\u17bc\u17a1\u1784\u17cb 60\u00b0C \u1782\u17ba\u1798\u17b7\u1793\u1782\u17d2\u179a\u1794\u17cb\u1782\u17d2\u179a\u17b6\u1793\u17cb\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8\u1797\u17b6\u1782\u1785\u17d2\u179a\u17be\u1793 \u1793\u17b7\u1784\u1794\u17c6\u1796\u17b6\u1793\u179b\u17be\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u1780\u17bc\u178a\u17d4.<\/li>\n<li><strong>\u1780\u17c6\u178a\u17c5 IR \u1791\u17b6\u1798\u1791\u17b6\u179a\u179f\u17d2\u1790\u17c1\u179a\u1797\u17b6\u1796 3+ \u1798\u17c9\u17c4\u1784<\/strong>\u17d6 \u179a\u17bc\u1794\u1797\u17b6\u1796\u1780\u1798\u17d2\u178a\u17c5\u1782\u17ba\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c\u178f\u17c2\u1794\u1793\u17d2\u1791\u17b6\u1794\u17cb\u1796\u17b8\u17a7\u1794\u1780\u179a\u178e\u17cd\u1794\u17c6\u179b\u17c2\u1784\u179f\u17c0\u1782\u17d2\u179c\u17b8\u1788\u17b6\u1793\u178a\u179b\u17cb\u179b\u17c6\u1793\u17b9\u1784\u1780\u1798\u17d2\u178a\u17c5\u2014\u1780\u17b6\u179a\u17a2\u17b6\u1793\u1798\u17b7\u1793\u1782\u17d2\u179a\u1794\u17cb\u1781\u17c2\u1794\u17c9\u17b6\u1793\u17cb\u179f\u17d2\u1798\u17b6\u1793\u1798\u17b7\u1793\u178a\u179b\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1794\u17d2\u179a\u178f\u17b7\u1794\u178f\u17d2\u178f\u17b7\u1780\u17b6\u179a\u1787\u17b6\u1780\u17cb\u179f\u17d2\u178f\u17c2\u1784\u17d4.<\/li>\n<li><strong>\u0394T &gt; 30\u00b0C \u1791\u17b6\u1798\u1791\u17b6\u179a\u1780\u17b6\u179a\u179f\u17ca\u17be\u1794\u17a2\u1784\u17d2\u1780\u17c1\u178f\u1787\u17b6\u1794\u1793\u17d2\u1791\u17b6\u1793\u17cb<\/strong>\u17d6 \u1780\u17b6\u179a\u1780\u17be\u1793\u17a1\u17be\u1784\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179b\u17be\u179f\u1796\u17b8 30\u00b0C \u179b\u17be\u179f\u1796\u17b8\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u1796\u17d0\u1791\u17d2\u1792\u1787\u17bb\u17c6\u179c\u17b7\u1789\u1794\u1784\u17d2\u17a0\u17b6\u1789\u1796\u17b8\u1780\u17b6\u179a\u178f\u1797\u17d2\u1787\u17b6\u1794\u17cb\u179a\u179b\u17bb\u1784 \u1780\u17b6\u179a\u1795\u17d2\u1791\u17bb\u1780\u179b\u17be\u179f\u1791\u1798\u17d2\u1784\u1793\u17cb \u17ac\u1780\u17b6\u179a\u1781\u17d2\u179f\u17c4\u17c7\u1787\u17b8\u179c\u1787\u17b6\u178f\u17b7\u1781\u17b6\u1784\u1780\u17d2\u1793\u17bb\u1784\u178a\u17c2\u179b\u178f\u1798\u17d2\u179a\u17bc\u179c\u17b1\u17d2\u1799\u1798\u17b6\u1793\u179f\u1780\u1798\u17d2\u1798\u1797\u17b6\u1796\u1780\u17c2\u178f\u1798\u17d2\u179a\u17bc\u179c\u1797\u17d2\u179b\u17b6\u1798\u17d7\u17d4.<\/li>\n<li><strong>\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a IEC \u1793\u17b7\u1784 UL \u179f\u17d2\u179a\u1794\u1782\u17d2\u1793\u17b6\u1793\u17c5\u179b\u17be\u1798\u17bc\u179b\u178a\u17d2\u178b\u17b6\u1793\u1782\u17d2\u179a\u17b9\u17c7<\/strong>\u17d6 \u1781\u178e\u17c8\u1796\u17c1\u179b\u178a\u17c2\u179b\u1793\u17b8\u178f\u17b7\u179c\u17b7\u1792\u17b8\u1792\u17d2\u179c\u17be\u178f\u17c1\u179f\u17d2\u178f\u1781\u17bb\u179f\u1782\u17d2\u1793\u17b6\u1794\u1793\u17d2\u178f\u17b7\u1785\u1794\u1793\u17d2\u178f\u17bd\u1785 \u1791\u17b6\u17c6\u1784 IEC 60947-2 \u1793\u17b7\u1784 UL 489 \u179f\u17c6\u178a\u17c5\u179b\u17be\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u179f\u17d2\u179a\u178a\u17c0\u1784\u1782\u17d2\u1793\u17b6 \u1792\u17b6\u1793\u17b6\u1794\u17b6\u1793\u1793\u17bc\u179c\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u179f\u1780\u179b\u17d4.<\/li>\n<li><strong>\u1780\u17b6\u179a\u1790\u17c2\u1791\u17b6\u17c6\u1794\u1784\u17d2\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u1780\u17b6\u179a\u1794\u179a\u17b6\u1787\u17d0\u1799<\/strong>\u17d6 \u1780\u17b6\u179a\u179f\u17d2\u1791\u1784\u17cb\u1798\u178f\u17b7\u1780\u1798\u17d2\u178a\u17c5\u1787\u17b6\u1794\u17d2\u179a\u1785\u17b6\u17c6 \u1780\u1798\u17d2\u179b\u17b6\u17c6\u1784\u1794\u1784\u17d2\u179c\u17b7\u179b\u1787\u17bb\u17c6\u179f\u17d2\u1790\u17b6\u1793\u17b8\u1799\u178f\u17d2\u179a\u17b9\u1798\u178f\u17d2\u179a\u17bc\u179c \u1793\u17b7\u1784\u1780\u17b6\u179a\u179c\u17b7\u1797\u17b6\u1782\u1793\u17b7\u1793\u17d2\u1793\u17b6\u1780\u17b6\u179a\u1780\u17c6\u178e\u178f\u17cb\u1794\u1789\u17d2\u17a0\u17b6 \u1798\u17bb\u1793\u1796\u17c1\u179b\u1796\u17bd\u1780\u179c\u17b6\u1794\u178e\u17d2\u178f\u17b6\u179b\u17b1\u17d2\u1799\u1798\u17b6\u1793\u1780\u17b6\u179a\u179a\u17c6\u1781\u17b6\u1793 \u17ac\u17a7\u1794\u17d2\u1794\u178f\u17d2\u178f\u17b7\u17a0\u17c1\u178f\u17bb\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u2014\u179c\u17b7\u1793\u17b7\u1799\u17c4\u1782\u179b\u17be\u17a7\u1794\u1780\u179a\u178e\u17cd IR \u1793\u17b7\u1784\u1780\u17b6\u179a\u1794\u178e\u17d2\u178f\u17bb\u17c7\u1794\u178e\u17d2\u178f\u17b6\u179b\u17d4.<\/li>\n<\/ul>\n<p>\u179f\u1798\u17d2\u179a\u17b6\u1794\u17cb\u1780\u17b6\u179a\u1780\u17b6\u179a\u1796\u17b6\u179a\u179f\u17c0\u1782\u17d2\u179c\u17b8\u178a\u17c2\u179b\u17a2\u17b6\u1785\u1791\u17bb\u1780\u1785\u17b7\u178f\u17d2\u178f\u1794\u17b6\u1793\u178a\u17c2\u179b\u1794\u17c6\u1796\u17c1\u1789\u178f\u17b6\u1798\u178f\u1798\u17d2\u179a\u17bc\u179c\u1780\u17b6\u179a\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u1780\u1798\u17d2\u178a\u17c5\u178a\u17cf\u178f\u17b9\u1784\u179a\u17b9\u1784\u1794\u17c6\u1795\u17bb\u178f \u179f\u17bc\u1798\u179f\u17d2\u179c\u17c2\u1784\u179a\u1780\u1781\u17d2\u179f\u17c2\u1794\u1793\u17d2\u1791\u17b6\u178f\u17cb\u1796\u17c1\u1789\u179b\u17c1\u1789\u179a\u1794\u179f\u17cb VIOX \u178a\u17c2\u179b <a href=\"https:\/\/test.viox.com\/km\/mcb\/\">MCBs<\/a> \u1793\u17b7\u1784 <a href=\"https:\/\/test.viox.com\/km\/mccb\/\">MCCBs<\/a> \u178f\u17d2\u179a\u17bc\u179c\u1794\u17b6\u1793\u179a\u1785\u1793\u17b6\u17a1\u17be\u1784\u178f\u17b6\u1798\u179f\u17d2\u178f\u1784\u17cb\u178a\u17b6\u179a IEC \u1793\u17b7\u1784 UL \u17d4 \u1780\u17d2\u179a\u17bb\u1798\u1794\u1785\u17d2\u1785\u17c1\u1780\u1791\u17c1\u179f\u179a\u1794\u179f\u17cb\u1799\u17be\u1784\u17a2\u17b6\u1785\u1787\u17bd\u1799\u1780\u17d2\u1793\u17bb\u1784\u1780\u17b6\u179a\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u1795\u179b\u17b7\u178f\u1795\u179b \u1780\u17b6\u179a\u179c\u17b7\u1797\u17b6\u1782\u1780\u1798\u17d2\u178a\u17c5 \u1793\u17b7\u1784\u1780\u17b6\u179a\u178e\u17c2\u1793\u17b6\u17c6\u1787\u17b6\u1780\u17cb\u179b\u17b6\u1780\u17cb\u1785\u17c6\u1796\u17c4\u17c7\u1780\u1798\u17d2\u1798\u179c\u17b7\u1792\u17b8 \u178a\u17be\u1798\u17d2\u1794\u17b8\u1792\u17b6\u1793\u17b6\u1790\u17b6\u1780\u17b6\u179a\u178a\u17c6\u17a1\u17be\u1784\u179a\u1794\u179f\u17cb\u17a2\u17d2\u1793\u1780\u178a\u17c6\u178e\u17be\u179a\u1780\u17b6\u179a\u178a\u17c4\u1799\u179f\u17bb\u179c\u178f\u17d2\u1790\u17b7\u1797\u17b6\u1796\u1780\u17d2\u1793\u17bb\u1784\u178a\u17c2\u1793\u1780\u17c6\u178e\u178f\u17cb\u179f\u17b8\u178f\u17bb\u178e\u17d2\u17a0\u1797\u17b6\u1796\u17d4.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Understanding Temperature Rise in Circuit Breakers: Why It Matters Every circuit breaker generates heat during normal operation. When electrical current flows through the internal components\u2014contacts, bimetal strips, and terminals\u2014resistance creates thermal energy. While some heating is inevitable, excessive temperature rise can degrade insulation, accelerate contact wear, cause nuisance tripping, and ultimately lead to catastrophic failure. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21371,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21369","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\/21369","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=21369"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/posts\/21369\/revisions"}],"predecessor-version":[{"id":21370,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/posts\/21369\/revisions\/21370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/media\/21371"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/media?parent=21369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/categories?post=21369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/km\/wp-json\/wp\/v2\/tags?post=21369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}