{"id":20573,"date":"2025-12-17T08:12:32","date_gmt":"2025-12-17T00:12:32","guid":{"rendered":"https:\/\/viox.com\/?p=20573"},"modified":"2025-12-04T23:48:44","modified_gmt":"2025-12-04T15:48:44","slug":"standard-breaker-sizes","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ja\/standard-breaker-sizes\/","title":{"rendered":"\u6a19\u6e96\u7684\u306a\u906e\u65ad\u5668\u30b5\u30a4\u30ba\uff1aMCCB\u306e\u96fb\u6d41\u5b9a\u683c\u306f16A\u304b\u30891600A\u307e\u3067"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u9069\u5207\u306a\u906e\u65ad\u5668\u306e\u9078\u629e<a href=\"https:\/\/test.viox.com\/ja\/mccb\/\"> \u914d\u7dda\u7528\u906e\u65ad\u5668\uff08MCCB\uff09\u306f\u3001<\/a> \u306f\u3001\u6a19\u6e96\u7684\u306a\u906e\u65ad\u5668\u306e\u30b5\u30a4\u30ba\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002 <a href=\"http:\/\/voix.com\/mcb\" rel=\"nofollow noopener\" target=\"_blank\">\u30df\u30cb\u30c1\u30e5\u30a2\u56de\u8def\u906e\u65ad\u5668\uff08MCB\uff09<\/a> \u6700\u7d42\u56de\u8def\u3092\u4fdd\u8b77\u3059\u308b\u3068\u306f\u7570\u306a\u308a\u3001MCCB\u306f\u3088\u308a\u5e83\u3044\u96fb\u6d41\u7bc4\u56f2\uff0816A\u306e\u5206\u5c90\u30d5\u30a3\u30fc\u30c0\u30fc\u304b\u30891600A\u306e\u4e3b\u96fb\u6e90\u307e\u3067\uff09\u3092\u30ab\u30d0\u30fc\u3057\u3001\u6b63\u3057\u3044\u5b9a\u683c\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5168\u6027\u3001\u5354\u8abf\u6027\u3001\u304a\u3088\u3073\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30b3\u30b9\u30c8\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002.<\/p>\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u5b8c\u5168\u306aIEC 60947-2\u898f\u683c\u306e\u96fb\u6d41\u5b9a\u683c\u3092\u793a\u3057\u3001\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u30ab\u30c6\u30b4\u30ea\u3092\u8aac\u660e\u3057\u3001\u906e\u65ad\u5668\u306e\u4ed5\u69d8\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4e00\u81f4\u3055\u305b\u308b\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002\u30e2\u30fc\u30bf\u30fc\u30d5\u30a3\u30fc\u30c0\u30fc\u3001\u5efa\u7269\u306e\u30b5\u30d6\u30e1\u30a4\u30f3\u3001\u307e\u305f\u306f\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u306e\u4e3b\u96fb\u6e90\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u5fc5\u8981\u306a\u6280\u8853\u7684\u306a\u8a73\u7d30\u3068\u9078\u629e\u30ed\u30b8\u30c3\u30af\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\uff1a\u6a19\u6e96MCCB\u96fb\u6d41\u5b9a\u683c<\/h2>\n<p>IEC\u6e96\u62e0\u306eMCCB\u306f\u3001\u6b21\u306e\u6a19\u6e96\u5b9a\u683c\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>16A<\/strong> | <strong>20A<\/strong> | <strong>25A<\/strong> | <strong>32A<\/strong> | <strong>40A<\/strong> | <strong>50A<\/strong> | <strong>63A<\/strong> | <strong>80A<\/strong> | <strong>100A<\/strong> | <strong>125A<\/strong> | <strong>160A<\/strong> | <strong>200A<\/strong> | <strong>250A<\/strong> | <strong>320A<\/strong> | <strong>400A<\/strong> | <strong>500A<\/strong> | <strong>630A<\/strong> | <strong>800A<\/strong> | <strong>1000A<\/strong> | <strong>1250A<\/strong> | <strong>1600A<\/strong><\/p>\n<p>\u3059\u3079\u3066\u306e\u30e1\u30fc\u30ab\u30fc\u304c\u3001\u3059\u3079\u3066\u306e\u30d5\u30ec\u30fc\u30e0\u3067\u3059\u3079\u3066\u306e\u5b9a\u683c\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\uff08\u5c0f\u3001\u4e2d\u3001\u5927\uff09\u306b\u3088\u3063\u3066\u3001\u5229\u7528\u53ef\u80fd\u306a\u96fb\u6d41\u5b9a\u683c\u3068\u3001\u906e\u65ad\u5668\u304c\u9054\u6210\u3067\u304d\u308b\u906e\u65ad\u5bb9\u91cf\uff08Icu \/ Ics\uff09\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/mccb-frame-size-comparison-showing-small-medium-and-large-frame-breakers.webp\" alt=\"MCCB Frame Size Comparison showing small, medium, and large frame breakers\" \/><figcaption>\u56f31\uff1a\u30d5\u30ec\u30fc\u30e0\u30ab\u30c6\u30b4\u30ea\u5168\u4f53\u306eMCCB\u306e\u7269\u7406\u7684\u306a\u30b5\u30a4\u30ba\u306e\u5909\u5316\u3002\u5de6\u304b\u3089\u53f3\uff1a\u5c0f\u30d5\u30ec\u30fc\u30e0\uff0863A\uff09\u3001\u4e2d\u30d5\u30ec\u30fc\u30e0\uff08400A\uff09\u3001\u5927\u30d5\u30ec\u30fc\u30e0\uff081600A\uff09\u3002\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u306b\u3088\u3063\u3066\u3001\u5229\u7528\u53ef\u80fd\u306a\u6700\u5927\u96fb\u6d41\u5b9a\u683c\u3068\u906e\u65ad\u5bb9\u91cf\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002.<\/figcaption><\/figure>\n<h2>IEC 60947-2\u6a19\u6e96\u5b9a\u683c\u306e\u7406\u89e3<\/h2>\n<p>IEC 60947-2\u306f\u3001\u3059\u3079\u3066\u306eMCCB\u3092\u542b\u3080\u4f4e\u96fb\u5727\u56de\u8def\u906e\u65ad\u5668\u306e\u6027\u80fd\u8981\u4ef6\u3092\u5b9a\u7fa9\u3059\u308b\u56fd\u969b\u898f\u683c\u3067\u3059\u3002\u906e\u65ad\u5668\u306e\u9298\u677f\u306b\u300cIEC 60947-2\u300d\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u7279\u5b9a\u306e\u96fb\u6c17\u7684\u3001\u6a5f\u68b0\u7684\u3001\u304a\u3088\u3073\u5b89\u5168\u6027\u306e\u57fa\u6e96\u3092\u6e80\u305f\u3059\u3088\u3046\u306b\u30c6\u30b9\u30c8\u304a\u3088\u3073\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h3>\u4e3b\u8981\u306a\u5b9a\u683c\u30d1\u30e9\u30e1\u30fc\u30bf<\/h3>\n<p>\u3059\u3079\u3066\u306eMCCB\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306b\u306f\u3001\u6b21\u306e\u91cd\u8981\u306a\u5b9a\u683c\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>In\uff08\u5b9a\u683c\u96fb\u6d41\uff09<\/strong>\uff1a\u906e\u65ad\u5668\u304c\u30c8\u30ea\u30c3\u30d7\u305b\u305a\u306b\u57fa\u6e96\u5468\u56f2\u6e29\u5ea6\uff08\u901a\u5e38\u306f40\u00b0C\uff09\u3067\u904b\u3076\u3053\u3068\u304c\u3067\u304d\u308b\u6700\u5927\u9023\u7d9a\u96fb\u6d41\u3002\u3053\u308c\u306f\u906e\u65ad\u5668\u306e\u300c\u30b5\u30a4\u30ba\u300d\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001250A MCCB\u306eIn = 250A\u3067\u3059\u3002.<\/p>\n<p><strong>Ue\uff08\u5b9a\u683c\u52d5\u4f5c\u96fb\u5727\uff09<\/strong>\uff1a\u906e\u65ad\u5668\u304c\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u96fb\u5727\u3002\u4e00\u822c\u7684\u306a\u5b9a\u683c\u306b\u306f\u3001\u4e09\u76f8\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u306f230V\u3001400V\u3001690V AC\u3001\u307e\u305f\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u304a\u3088\u3073\u30bd\u30fc\u30e9\u30fc\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u5408\u306f250V DC\u304c\u542b\u307e\u308c\u307e\u3059\u3002.<\/p>\n<p><strong>Icu\uff08\u5b9a\u683c\u6975\u9650\u77ed\u7d61\u906e\u65ad\u5bb9\u91cf\uff09<\/strong>\uff1a\u906e\u65ad\u5668\u304c\u5b89\u5168\u306b1\u56de\u906e\u65ad\u3067\u304d\u308b\u6700\u5927\u6545\u969c\u96fb\u6d41\uff08kA\u5358\u4f4d\uff09\u3002 Icu\u30ec\u30d9\u30eb\u306e\u6545\u969c\u5f8c\u3001\u906e\u65ad\u5668\u306f\u7d99\u7d9a\u7684\u306a\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u9069\u3055\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u5024\u306f\u3001\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u306b\u5fdc\u3058\u306625kA\u301c100kA\u3067\u3059\u3002.<\/p>\n<p><strong>Ics\uff08\u5b9a\u683c\u4f7f\u7528\u77ed\u7d61\u906e\u65ad\u5bb9\u91cf\uff09<\/strong>\uff1a\u906e\u65ad\u5668\u304c\u906e\u65ad\u3057\u3001\u7d99\u7d9a\u7684\u306a\u52d5\u4f5c\u306e\u305f\u3081\u306b\u4f7f\u7528\u53ef\u80fd\u306a\u72b6\u614b\u3092\u7dad\u6301\u3067\u304d\u308b\u6545\u969c\u96fb\u6d41\u30ec\u30d9\u30eb\u3002 IEC\u306fIcs\u3092Icu\u306e\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u307e\u3059\u2014\u901a\u5e38\u306f25\uff05\u300150\uff05\u300175\uff05\u3001\u307e\u305f\u306f100\uff05\u3067\u3059\u3002\u91cd\u8981\u306a\u65bd\u8a2d\u306e\u5834\u5408\u306f\u3001Ics = 100\uff05\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u5546\u696d\u30d3\u30eb\u306e\u5834\u5408\u306f\u300175\uff05\u304c\u6a19\u6e96\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002.<\/p>\n<h3>\u5229\u7528\u30ab\u30c6\u30b4\u30ea\u30fc<\/h3>\n<p>IEC 60947-2\u306f\u3001\u6b21\u306e2\u3064\u306e\u30ab\u30c6\u30b4\u30ea\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30ab\u30c6\u30b4\u30ea\u30fcA<\/strong>A\uff1a\u610f\u56f3\u7684\u306a\u9045\u5ef6\u306a\u3057\u306b\u77ac\u6642\u30c8\u30ea\u30c3\u30d7\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u906e\u65ad\u5668\u3002\u307b\u3068\u3093\u3069\u306eMCCB\u306f\u3001\u4e00\u822c\u7684\u306a\u914d\u96fb\u304a\u3088\u3073\u30e2\u30fc\u30bf\u30fc\u4fdd\u8b77\u306e\u305f\u3081\u306b\u3053\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002.<\/li>\n<li><strong>\u30ab\u30c6\u30b4\u30ea\u30fcB<\/strong>B\uff1a\u4e0b\u6d41\u30c7\u30d0\u30a4\u30b9\u3068\u306e\u9078\u629e\u7684\u306a\u5354\u8abf\u306e\u305f\u3081\u306e\u610f\u56f3\u7684\u306a\u9045\u5ef6\uff08\u8010\u96fb\u5727\u80fd\u529b\uff09\u3092\u5099\u3048\u305f\u906e\u65ad\u5668\u3002\u9078\u629e\u6027\u304c\u5fc5\u8981\u306a\u4e0a\u6d41\u306e\u4f4d\u7f6e\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/li>\n<\/ul>\n<h3>\u3053\u308c\u3089\u306e\u5b9a\u683c\u304c\u91cd\u8981\u306a\u7406\u7531<\/h3>\n<p>MCCB\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>In\u306f\u8ca0\u8377\u96fb\u6d41\u4ee5\u4e0a\u3067\u3042\u308b\u3053\u3068\uff08\u7a81\u5165\u96fb\u6d41\u3068\u5c06\u6765\u306e\u5897\u52a0\u306b\u5bfe\u3059\u308b\u4f59\u88d5\u304c\u3042\u308b\u3053\u3068\uff09<\/li>\n<li>Icu\u306f\u8a2d\u7f6e\u30dd\u30a4\u30f3\u30c8\u3067\u306e\u4e88\u60f3\u3055\u308c\u308b\u6545\u969c\u96fb\u6d41\u4ee5\u4e0a\u3067\u3042\u308b\u3053\u3068<\/li>\n<li>Ics\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u91cd\u8981\u5ea6\u306b\u9069\u3057\u3066\u3044\u308b\u3053\u3068\uff0875\u301c100\uff05\uff09<\/li>\n<li>\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u306f\u3001\u5fc5\u8981\u306aIn\u3068Icu\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3053\u3068<\/li>\n<\/ul>\n<p>250A\u306e\u8ca0\u8377\u306b\u306f\u3001\u81ea\u52d5\u7684\u306b250A\u306e\u906e\u65ad\u5668\u304c\u5fc5\u8981\u306b\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6545\u969c\u30ec\u30d9\u30eb\u3001\u5354\u8abf\u8981\u4ef6\u3001\u304a\u3088\u3073\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u9069\u7528\u3055\u308c\u308b\u304b\u3069\u3046\u304b\uff08\u9ad8\u3044\u5468\u56f2\u6e29\u5ea6\u3001\u30b0\u30eb\u30fc\u30d7\u5316\u3001\u307e\u305f\u306f\u9ad8\u8abf\u6ce2\u6210\u5206\uff09\u3082\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h2>MCCB\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u30ab\u30c6\u30b4\u30ea<\/h2>\n<h3>\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u306e\u5206\u985e<\/h3>\n<p>\u30e1\u30fc\u30ab\u30fc\u306f\u7570\u306a\u308b\u547d\u540d\u898f\u5247\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u696d\u754c\u3067\u306f3\u3064\u306e\u5e83\u7bc4\u306a\u30ab\u30c6\u30b4\u30ea\u304c\u8a8d\u8b58\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>\u30d5\u30ec\u30fc\u30e0\u30ab\u30c6\u30b4\u30ea<\/strong><\/td>\n<td><strong>\u6a19\u6e96\u7684\u306a\u96fb\u6d41\u7bc4\u56f2<\/strong><\/td>\n<td><strong>\u4e00\u822c\u7684\u306aIcu\u7bc4\u56f2<\/strong><\/td>\n<td><strong>\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u5c0f\u30d5\u30ec\u30fc\u30e0<\/strong><\/td>\n<td>16A\u301c250A<\/td>\n<td>25kA\u301c50kA<\/td>\n<td>\u5206\u5c90\u56de\u8def\u3001\u5c0f\u898f\u6a21\u30d5\u30a3\u30fc\u30c0\u30fc\u3001\u30e2\u30fc\u30bf\u30fc\u4fdd\u8b77<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e2d\u30d5\u30ec\u30fc\u30e0<\/strong><\/td>\n<td>250A\u301c630A<\/td>\n<td>35kA\u301c70kA<\/td>\n<td>\u30b5\u30d6\u30e1\u30a4\u30f3\u3001\u5efa\u7269\u30d5\u30a3\u30fc\u30c0\u30fc\u3001\u914d\u96fb\u76e4<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5927\u30d5\u30ec\u30fc\u30e0<\/strong><\/td>\n<td>630A\u301c1600A<\/td>\n<td>50kA \u2013 100kA<\/td>\n<td>\u4e3b\u96fb\u6e90\u3001\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u3001\u7523\u696d\u7528\u96fb\u6e90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u304c\u91cd\u8981\u306a\u7406\u7531<\/h3>\n<p><strong>\u906e\u65ad\u5bb9\u91cf\u306e\u5236\u9650<\/strong>\uff1a\u5927\u304d\u306a\u30d5\u30ec\u30fc\u30e0\u306f\u3001\u3088\u308a\u9ad8\u3044\u6545\u969c\u96fb\u6d41\u3092\u906e\u65ad\u3067\u304d\u307e\u3059\u3002\u8a2d\u7f6e\u30dd\u30a4\u30f3\u30c8\u306b65kA\u306e\u4e88\u60f3\u3055\u308c\u308b\u6545\u969c\u96fb\u6d41\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u4e2d\u307e\u305f\u306f\u5927\u30d5\u30ec\u30fc\u30e0\u304c\u5fc5\u8981\u3067\u3059\u3002\u5c0f\u30d5\u30ec\u30fc\u30e0\u306f\u901a\u5e38\u3001\u6700\u592750kA\u3067\u3059\u3002.<\/p>\n<p><strong>\u7269\u7406\u7684\u306a\u30b9\u30da\u30fc\u30b9<\/strong>\uff1a1600A\u306e\u5927\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u5e45300mm\u4ee5\u4e0a\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u300163A\u306e\u5c0f\u30d5\u30ec\u30fc\u30e0\u906e\u65ad\u5668\u306f70mm\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30cd\u30eb\u306e\u8a2d\u8a08\u3067\u306f\u3001\u7279\u306b\u6539\u4fee\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u5bf8\u6cd5\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p><strong>\u30b3\u30b9\u30c8\u6700\u9069\u5316<\/strong>\uff1a\u904e\u5270\u306a\u4ed5\u69d8\u306b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002 30kA\u306e\u6545\u969c\u30ec\u30d9\u30eb\u306e200A\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u306f\u3001\u5927\u30d5\u30ec\u30fc\u30e0\u906e\u65ad\u5668\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u30d1\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u3068\u30b3\u30b9\u30c8\u3092\u7bc0\u7d04\u3059\u308b\u305f\u3081\u306b\u3001\u5c0f\u30d5\u30ec\u30fc\u30e0250A\u30e6\u30cb\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<p><strong>\u8abf\u6574\u7bc4\u56f2<\/strong>\uff1a\u5927\u304d\u306a\u30d5\u30ec\u30fc\u30e0\u306e\u96fb\u5b50\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u3067\u306f\u3001In\u3001Ir\uff08\u71b1\uff09\u3001\u304a\u3088\u3073Im\uff08\u78c1\u6c17\uff09\u306e\u8a2d\u5b9a\u3092\u73fe\u5834\u3067\u8abf\u6574\u3067\u304d\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u71b1\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7\u3092\u5099\u3048\u305f\u5c0f\u30d5\u30ec\u30fc\u30e0\u306f\u3001\u901a\u5e38\u56fa\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u30d5\u30ec\u30fc\u30e0\u3068\u5b9a\u683c\uff1a\u5b9f\u8df5\u7684\u306a\u4f8b<\/h3>\n<p>40kA\u306e\u6545\u969c\u30ec\u30d9\u30eb\u306e\u5546\u696d\u30d3\u30eb\u306e400A\u30d5\u30a3\u30fc\u30c0\u30fc\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><strong>\u30aa\u30d7\u30b7\u30e7\u30f31<\/strong>\uff1a400A \/ 50kA\u3068\u8a55\u4fa1\u3055\u308c\u305f\u4e2d\u30d5\u30ec\u30fc\u30e0MCCB\u3092\u9078\u629e\u3057\u307e\u3059\uff08In = 400A\u3001Icu = 50kA\uff09<\/li>\n<li><strong>\u30aa\u30d7\u30b7\u30e7\u30f32<\/strong>\uff1a400A \/ 65kA\u3068\u8a55\u4fa1\u3055\u308c\u305f\u5927\u30d5\u30ec\u30fc\u30e0MCCB\u3092\u9078\u629e\u3057\u307e\u3059\uff08In = 400A\u3001Icu = 65kA\uff09<\/li>\n<\/ul>\n<p>\u3069\u3061\u3089\u3082400A\u306e\u8ca0\u8377\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30aa\u30d7\u30b7\u30e7\u30f31\u306f40kA\u306e\u6545\u969c\u30ec\u30d9\u30eb\u306b\u9069\u3057\u305f\u3001\u3088\u308a\u5c0f\u3055\u304f\u3001\u5b89\u4fa1\u306a\u30d5\u30ec\u30fc\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30aa\u30d7\u30b7\u30e7\u30f32\u306f\u30de\u30fc\u30b8\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u30d1\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u3068\u4e88\u7b97\u3092\u6d6a\u8cbb\u3057\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u3001 <strong>\u6700\u5c0f\u306e\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/strong> \u5b9a\u683c\u96fb\u6d41In\u3068\u906e\u65ad\u5bb9\u91cfIcu\u306e\u4e21\u65b9\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3082\u306e\u3002.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/standard-mccb-current-ratings-chart-organized-by-frame-size.webp\" alt=\"Standard MCCB Current Ratings Chart organized by frame size\" \/><figcaption>\u56f32\uff1aIEC 60947-2\u898f\u683c\u306e\u5b9a\u683c\u96fb\u6d41\u3092\u30d5\u30ec\u30fc\u30e0\u30ab\u30c6\u30b4\u30ea\u5225\u306b\u307e\u3068\u3081\u305f\u3082\u306e\u3002\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0\uff0816\uff5e250A\uff09\u306f\u5206\u5c90\u56de\u8def\u3068\u30e2\u30fc\u30bf\u4fdd\u8b77\u3092\u6271\u3044\u3001\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0\uff08250\uff5e630A\uff09\u306f\u5efa\u7269\u30d5\u30a3\u30fc\u30c0\u3068\u30b5\u30d6\u30e1\u30a4\u30f3\u3092\u6271\u3044\u3001\u5927\u578b\u30d5\u30ec\u30fc\u30e0\uff08630\uff5e1600A\uff09\u306f\u4e3b\u96fb\u6e90\u5f15\u8fbc\u53e3\u3068\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002.<\/figcaption><\/figure>\n<h2>\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0MCCB\uff0816A\uff5e250A\uff09<\/h2>\n<p>\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u3001\u5546\u696d\u304a\u3088\u3073\u8efd\u5de5\u696d\u74b0\u5883\u306b\u304a\u3051\u308b\u5206\u5c90\u56de\u8def\u3001\u30b5\u30d6\u30d5\u30a3\u30fc\u30c0\u3001\u304a\u3088\u3073\u30e2\u30fc\u30bf\u4fdd\u8b77\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5927\u90e8\u5206\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001MCB\uff08\u6700\u5927125A\uff09\u3068\u3088\u308a\u5927\u578b\u306e\u914d\u96fb\u7528\u906e\u65ad\u5668\u3068\u306e\u9593\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u307e\u3059\u3002.<\/p>\n<h3>\u6a19\u6e96\u5b9a\u683c\u96fb\u6d41<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>\u5b9a\u683c\u96fb\u6d41\uff08A\uff09<\/strong><\/td>\n<td><strong>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/strong><\/td>\n<td><strong>\u4e00\u822c\u7684\u306a\u30c8\u30ea\u30c3\u30d7\u30bf\u30a4\u30d7<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>16A<\/strong><\/td>\n<td>\u5c0f\u578b\u30e2\u30fc\u30bf\u30d5\u30a3\u30fc\u30c0\u3001\u7167\u660e\u30d1\u30cd\u30eb<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>20A<\/strong><\/td>\n<td>\u6a5f\u5668\u56de\u8def\u3001\u5c0f\u578b\u30dd\u30f3\u30d7<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>25A<\/strong><\/td>\n<td>HVAC\u30e6\u30cb\u30c3\u30c8\u3001\u5c0f\u578b\u6a5f\u68b0<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>32A<\/strong><\/td>\n<td>\u30e2\u30fc\u30bf\u30d5\u30a3\u30fc\u30c0\uff08400V\u3067\u6700\u592715kW\uff09<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>40A<\/strong><\/td>\n<td>\u696d\u52d9\u7528\u53a8\u623f\u6a5f\u5668\u3001\u30c1\u30e9\u30fc<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>50A<\/strong><\/td>\n<td>\u4e2d\u578b\u30e2\u30fc\u30bf\uff0822kW\uff09\u3001UPS\u30d5\u30a3\u30fc\u30c0<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>63A<\/strong><\/td>\n<td>\u914d\u96fb\u30b5\u30d6\u30d5\u30a3\u30fc\u30c0\u3001\u5927\u578b\u30e2\u30fc\u30bf\uff0830kW\uff09<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f\/\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>80A<\/strong><\/td>\n<td>\u5efa\u7269\u306e\u30b5\u30d6\u914d\u96fb\u3001\u30e2\u30fc\u30bf\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30bb\u30f3\u30bf<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f\/\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>100A<\/strong><\/td>\n<td>\u30d5\u30ed\u30a2\u914d\u96fb\u76e4\u3001\u30ea\u30d5\u30c8\u56de\u8def<\/td>\n<td>\u71b1\u52d5-\u96fb\u78c1\u5f0f\/\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>125A<\/strong><\/td>\n<td>\u5efa\u7269\u306e\u30e9\u30a4\u30b6\u30fc\u3001\u5c0f\u898f\u6a21\u5546\u696d\u7528\u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9<\/td>\n<td>\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>160A<\/strong><\/td>\n<td>\u30b5\u30d6\u30e1\u30a4\u30f3\u3001\u767a\u96fb\u6a5f\u5207\u66ff\u30b9\u30a4\u30c3\u30c1<\/td>\n<td>\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>200A<\/strong><\/td>\n<td>\u5546\u696d\u7528\u30b5\u30d6\u30e1\u30a4\u30f3\u3001\u5c0f\u898f\u6a21\u7523\u696d\u7528\u30d5\u30a3\u30fc\u30c0<\/td>\n<td>\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<tr>\n<td><strong>250A<\/strong><\/td>\n<td>\u5efa\u7269\u306e\u4e3b\u30d5\u30a3\u30fc\u30c0\u3001\u7523\u696d\u7528\u914d\u96fb<\/td>\n<td>\u96fb\u5b50\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u6280\u8853\u7684\u7279\u6027<\/h3>\n<p><strong>\u906e\u65ad\u5bb9\u91cf<\/strong>\uff1a\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u901a\u5e38\u300125kA\uff5e50kA\u306eIcu\u5b9a\u683c\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u5546\u696d\u30d3\u30eb\uff08\u6545\u969c\u30ec\u30d9\u30eb20\uff5e35kA\uff09\u3067\u306f\u300136kA\u307e\u305f\u306f50kA\u306e\u30d5\u30ec\u30fc\u30e0\u3067\u5341\u5206\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u30c8\u30ea\u30c3\u30d7\u6280\u8853<\/strong>:<\/p>\n<ul>\n<li><strong>16A-63A<\/strong>\uff1a\u901a\u5e38\u3001\u56fa\u5b9a\u71b1\u52d5-\u96fb\u78c1\u5f0f\uff08\u30d0\u30a4\u30e1\u30bf\u30eb+\u96fb\u78c1\u30c8\u30ea\u30c3\u30d7\uff09<\/li>\n<li><strong>63A\uff5e250A<\/strong>\uff1a\u56fa\u5b9a\u71b1\u52d5-\u96fb\u78c1\u5f0f\u3068\u8abf\u6574\u53ef\u80fd\u306a\u96fb\u5b50\u5f0f\u306e\u4e21\u65b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u5229\u7528\u53ef\u80fd<\/li>\n<li>\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u8abf\u6574\u53ef\u80fd\u306aIr\uff08\u904e\u8ca0\u8377\uff09\u304a\u3088\u3073Im\uff08\u77ed\u7d61\uff09\u8a2d\u5b9a\u3092\u63d0\u4f9b\u3057\u3001\u30e2\u30fc\u30bf\u306e\u5354\u8abf\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><strong>\u5229\u7528\u53ef\u80fd\u306a\u6975\u6570<\/strong>\uff1a1P\u30012P\u30013P\u30014P\u69cb\u6210\u3002\u5358\u76f8\u56de\u8def\u306e\u5834\u5408\u30011P MCCB\u306fMCB\u3088\u308a\u3082\u4e00\u822c\u7684\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u307b\u3068\u3093\u3069\u306e\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f2P\u307e\u305f\u306f3P\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u30e2\u30fc\u30bf\u4fdd\u8b77\u306e\u4f8b<\/h3>\n<p>30kW \/ 400V\u4e09\u76f8\u30e2\u30fc\u30bf\u306e\u5834\u5408\uff08In \u2248 57A\u5168\u8ca0\u8377\uff09\uff1a<\/p>\n<ol>\n<li><strong>\u906e\u65ad\u5668\u5b9a\u683c\u306e\u9078\u629e<\/strong>\uff1a63A MCCB\u3092\u9078\u629e\uff0857A\u3092\u8d85\u3048\u308b\u6b21\u306e\u6a19\u6e96\u30b5\u30a4\u30ba\uff09<\/li>\n<li><strong>\u906e\u65ad\u5bb9\u91cf\u306e\u78ba\u8a8d<\/strong>\uff1a\u6545\u969c\u30ec\u30d9\u30eb\u304c28kA\u306e\u5834\u5408\u300136kA\u307e\u305f\u306f50kA\u306eIcu\u3092\u6307\u5b9a<\/li>\n<li><strong>\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a<\/strong>\uff1aIr\u30920.95 x In\uff0854A\u71b1\u4fdd\u8b77\uff09\u306b\u8a2d\u5b9a\u3057\u305f\u8abf\u6574\u53ef\u80fd\u306a\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7\u3092\u4f7f\u7528<\/li>\n<li><strong>\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3<\/strong>\uff1a\u78c1\u6c17\u3057\u304d\u3044\u5024Im\u304c\u30e2\u30fc\u30bf\u59cb\u52d5\u96fb\u6d41\u3088\u308a\u3082\u5927\u304d\u3044\u3053\u3068\u3092\u78ba\u8a8d\uff08\u901a\u5e386\uff5e8 x In\uff09<\/li>\n<\/ol>\n<h3>\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0<\/h3>\n<ul>\n<li><strong>\u8ca0\u8377\u96fb\u6d41<\/strong> \u2264 250A<\/li>\n<li><strong>\u6545\u969c\u30ec\u30d9\u30eb<\/strong> \u2264 50kA<\/li>\n<li><strong>\u306e\u5fdc\u7528<\/strong> \u30e2\u30fc\u30bf\u3001\u6a5f\u68b0\u3001\u307e\u305f\u306f\u5efa\u7269\u306e\u30b5\u30d6\u914d\u96fb\u304c\u542b\u307e\u308c\u308b<\/li>\n<li><strong>\u30b9\u30da\u30fc\u30b9<\/strong> \u304c\u9650\u3089\u308c\u3066\u3044\u308b\uff08\u901a\u5e38\u3001\u6975\u6570\u306b\u5fdc\u3058\u3066\u5e4570\uff5e140mm\uff09<\/li>\n<\/ul>\n<p>\u5358\u7d14\u306a\u62b5\u6297\u8ca0\u8377\u3092\u4fdd\u8b77\u3059\u308b\u4f4e\u5b9a\u683c\uff0816\uff5e32A\uff09\u306e\u5834\u5408\u3001MCB\u306e\u65b9\u304c\u8cbb\u7528\u5bfe\u52b9\u679c\u304c\u9ad8\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8abf\u6574\u53ef\u80fd\u306a\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a\u3001\u3088\u308a\u9ad8\u3044\u906e\u65ad\u5bb9\u91cf\u3001\u307e\u305f\u306f\u3088\u308a\u512a\u308c\u305f\u9078\u629e\u906e\u65ad\u5354\u8abf\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001MCCB\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2>\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0MCCB\uff08250A\uff5e630A\uff09<\/h2>\n<p>\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u3001\u5546\u696d\u304a\u3088\u3073\u7523\u696d\u7528\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u5efa\u7269\u306e\u30d5\u30a3\u30fc\u30c0\u3001\u30b5\u30d6\u30e1\u30a4\u30f3\u3001\u304a\u3088\u3073\u4e2d\u96fb\u5727\u5909\u5727\u5668\u306e\u4e8c\u6b21\u5074\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u3053\u306e\u7bc4\u56f2\u306f\u3001\u30aa\u30d5\u30a3\u30b9\u30d3\u30eb\u3001\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30bb\u30f3\u30bf\u30fc\u3001\u304a\u3088\u3073\u88fd\u9020\u65bd\u8a2d\u306b\u304a\u3051\u308b\u4e3b\u914d\u96fb\u76e4\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5927\u90e8\u5206\u3092\u30ab\u30d0\u30fc\u3057\u307e\u3059\u3002.<\/p>\n<h3>\u6a19\u6e96\u5b9a\u683c\u96fb\u6d41<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>\u5b9a\u683c\u96fb\u6d41\uff08A\uff09<\/strong><\/td>\n<td><strong>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/strong><\/td>\n<td><strong>\u4e00\u822c\u7684\u306aIcu\u7bc4\u56f2<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>250A<\/strong><\/td>\n<td>\u5efa\u7269\u306e\u4e3b\u30d5\u30a3\u30fc\u30c0\u3001\u7523\u696d\u7528\u30b5\u30d6\u914d\u96fb<\/td>\n<td>35kA\uff5e65kA<\/td>\n<\/tr>\n<tr>\n<td><strong>320A<\/strong><\/td>\n<td>\u5546\u696d\u7528\u4e3b\u30d5\u30a3\u30fc\u30c0\u3001\u4e2d\u898f\u6a21\u7523\u696d\u7528\u8ca0\u8377<\/td>\n<td>35kA\uff5e65kA<\/td>\n<\/tr>\n<tr>\n<td><strong>400A<\/strong><\/td>\n<td>\u5efa\u7269\u306e\u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\uff08\u5c0f\uff5e\u4e2d\u898f\u6a21\uff09\u3001\u30d7\u30ed\u30bb\u30b9\u6a5f\u5668<\/td>\n<td>35kA\u301c70kA<\/td>\n<\/tr>\n<tr>\n<td><strong>500A<\/strong><\/td>\n<td>\u5927\u898f\u6a21\u306a\u5efa\u7269\u306e\u30d5\u30a3\u30fc\u30c0\u3001\u7523\u696d\u7528\u30e1\u30a4\u30f3<\/td>\n<td>50kA\uff5e70kA<\/td>\n<\/tr>\n<tr>\n<td><strong>630A<\/strong><\/td>\n<td>\u4e3b\u914d\u96fb\u76e4\u3001\u5909\u5727\u5668\u4e8c\u6b21\u5074\u4fdd\u8b77<\/td>\n<td>50kA\uff5e85kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u6280\u8853\u7684\u7279\u6027<\/h3>\n<p><strong>\u906e\u65ad\u5bb9\u91cf<\/strong>\uff1a\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0\u306f\u3001\u4e3b\u914d\u96fb\u30dd\u30a4\u30f3\u30c8\u3067\u4e00\u822c\u7684\u306a\u9ad8\u3044\u6545\u969c\u96fb\u6d41\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u3001\u3088\u308a\u9ad8\u3044Icu\u5b9a\u683c\uff0835\uff5e85kA\uff09\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30aa\u30f3\u30b5\u30a4\u30c8\u767a\u96fb\u307e\u305f\u306f\u5bc6\u7d50\u5408\u5909\u5727\u5668\u3092\u5099\u3048\u305f\u7523\u696d\u73fe\u5834\u3067\u306f\u300140\uff5e65kA\u306e\u7bc4\u56f2\u306e\u6545\u969c\u30ec\u30d9\u30eb\u304c\u898b\u3089\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p><strong>\u96fb\u5b50\u65c5\u53f0<\/strong>\uff1a\u307b\u3068\u3093\u3069\u3059\u3079\u3066\u306e\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u3001\u6b21\u306e\u6a5f\u80fd\u3092\u5099\u3048\u305f\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7\u6280\u8853\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>Ir\uff08\u904e\u8ca0\u8377\uff09<\/strong>\uff1a0.4\uff5e1.0 x In\u3067\u8abf\u6574\u53ef\u80fd\u3001\u6642\u9593\u9045\u5ef6\u71b1\u4fdd\u8b77<\/li>\n<li><strong>Isd\uff08\u77ed\u9045\u5ef6\uff09<\/strong>: \u8abf\u6574\u53ef\u80fd\u306a\u77ac\u6642\u77ed\u7d61\u906e\u65ad\u95be\u5024\u3001\u901a\u5e381.5\uff5e10 x In<\/li>\n<li><strong>Ii (\u77ac\u6642)<\/strong>: \u9ad8\u30ec\u30d9\u30eb\u6545\u969c\u306b\u5bfe\u3059\u308b\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7\uff08\u4e00\u90e8\u306e\u30e6\u30cb\u30c3\u30c8\u3067\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\uff09<\/li>\n<li><strong>\u6f0f\u96fb<\/strong>: \u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5730\u7d61\u4fdd\u8b77\u30e2\u30b8\u30e5\u30fc\u30eb<\/li>\n<\/ul>\n<p><strong>\u30d5\u30ec\u30fc\u30e0\u5e45<\/strong>: 3\u6975\u30e6\u30cb\u30c3\u30c8\u306e\u5834\u5408\u306f140\uff5e180mm\u30014\u6975\u306e\u5834\u5408\u306f190\uff5e240mm\u306e\u5e45\u3092\u898b\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002\u30d1\u30cd\u30eb\u306e\u5207\u308a\u629c\u304d\u5bf8\u6cd5\u306f\u614e\u91cd\u306b\u8a08\u753b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0\u3088\u308a\u3082\u5927\u5e45\u306b\u30b9\u30da\u30fc\u30b9\u3092\u5360\u6709\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong>: \u591a\u304f\u306e\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u3001\u30d3\u30eb\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\uff08BMS\uff09\u307e\u305f\u306fSCADA\u3078\u306e\u7d71\u5408\u306e\u305f\u3081\u306e\u901a\u4fe1\u30e2\u30b8\u30e5\u30fc\u30eb\uff08Modbus RTU\u3001Profibus\u3001Ethernet\uff09\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u5354\u8abf\u3068\u9078\u629e\u6027<\/h3>\n<p>\u3053\u306e\u96fb\u6d41\u30ec\u30d9\u30eb\u3067\u306f\u3001, <strong>\u30ab\u30b9\u30b1\u30fc\u30c9\u4fdd\u8b77\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b<\/strong> \u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u4e0a\u6d41\u306e630A\u3068\u4e0b\u6d41\u306e250A\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u9069\u5207\u306b\u9078\u629e\u906e\u65ad\u3055\u308c\u308b\u3088\u3046\u306b\u3001\u6642\u9593\u96fb\u6d41\u7279\u6027\u306e\u5206\u6790\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7570\u306a\u308b\u30c8\u30ea\u30c3\u30d7\u6280\u8853\u3092\u4f7f\u7528\u3059\u308b<\/strong>: \u4e0a\u6d41\uff1a\u96fb\u5b50\u5f0f\uff08\u8abf\u6574\u53ef\u80fd\u306a\u9045\u5ef6\u6642\u9593\uff09+ \u4e0b\u6d41\uff1a\u71b1\u78c1\u6c17\u5f0f\uff08\u9ad8\u901f\uff09<\/li>\n<li><strong>\u6642\u9593\u96fb\u6d41\u7279\u6027\u3092\u78ba\u8a8d\u3059\u308b<\/strong>: \u3059\u3079\u3066\u306e\u6545\u969c\u30ec\u30d9\u30eb\u3067\u5c11\u306a\u304f\u3068\u3082100\uff5e200ms\u306e\u9078\u629e\u906e\u65ad\u6642\u9593\u3092\u78ba\u4fdd\u3059\u308b<\/li>\n<li><strong>S\u30b7\u30ea\u30fc\u30ba\u307e\u305f\u306fZSI\u3092\u691c\u8a0e\u3059\u308b<\/strong>: \u4e00\u90e8\u306e\u30e1\u30fc\u30ab\u30fc\u306f\u3001\u78ba\u5b9f\u306a\u5354\u8abf\u306e\u305f\u3081\u306b\u300c\u9078\u629e\u7684\u300d\u307e\u305f\u306f\u30be\u30fc\u30f3\u9078\u629e\u30a4\u30f3\u30bf\u30fc\u30ed\u30c3\u30af\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059<\/li>\n<\/ul>\n<h3>\u5909\u5727\u5668\u4e8c\u6b21\u5074\u4fdd\u8b77\u306e\u4f8b<\/h3>\n<p>1000kVA \/ 400V\u5909\u5727\u5668\u306e\u5834\u5408\uff08In \u2248 1443A\u4e8c\u6b21\u5074\uff09\uff1a<\/p>\n<ol>\n<li><strong>\u6545\u969c\u30ec\u30d9\u30eb\u3092\u8a08\u7b97\u3059\u308b<\/strong>: \u5909\u5727\u5668\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9Zk = 6%\u306e\u5834\u5408\u3001\u4e8c\u6b21\u5074\u6545\u969c \u2248 24 x In = 34.6kA<\/li>\n<li><strong>\u906e\u65ad\u5668\u5b9a\u683c\u306e\u9078\u629e<\/strong>: \u30e1\u30a4\u30f3\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u3057\u3066630A MCCB\u3092\u9078\u629e\uff08\u5c06\u6765\u306e\u8ca0\u8377\u5897\u52a0\u3092\u7d04440kW\u307e\u3067\u8a31\u5bb9\uff09<\/li>\n<li><strong>\u906e\u65ad\u5bb9\u91cf\u3092\u6307\u5b9a\u3059\u308b<\/strong>: Icu \u2265 35kA; \u30de\u30fc\u30b8\u30f3\u3068\u3057\u306650kA\u307e\u305f\u306f65kA\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e<\/li>\n<li><strong>\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a<\/strong>: Ir = 0.8 x 630A = 504A\uff08\u904e\u8ca0\u8377\u30c8\u30ea\u30c3\u30d7\u306a\u3057\u30671443A\u30d5\u30a3\u30fc\u30c0\u30fc\u3092\u8a31\u5bb9\uff09<\/li>\n<li><strong>\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3<\/strong>: \u4e0b\u6d41\u306e250A\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u306e\u9078\u629e\u906e\u65ad\u306e\u305f\u3081\u306b\u3001Isd = 3000A\u3001\u9045\u5ef60.2\u79d2\u306b\u8a2d\u5b9a<\/li>\n<\/ol>\n<h3>\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0<\/h3>\n<ul>\n<li><strong>\u8ca0\u8377\u96fb\u6d41<\/strong> 250-630A<\/li>\n<li><strong>\u6545\u969c\u30ec\u30d9\u30eb<\/strong> 30-85kA<\/li>\n<li><strong>\u306e\u5fdc\u7528<\/strong> \u4e3b\u914d\u96fb\u76e4\u3001\u5efa\u7269\u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\u3001\u307e\u305f\u306f\u7523\u696d\u7528\u30d5\u30a3\u30fc\u30c0\u30fc\u304c\u95a2\u4fc2\u3059\u308b\u5834\u5408<\/li>\n<li><strong>\u9078\u629e\u6027<\/strong> \u4e0b\u6d41\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u306e\u5354\u8abf\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<li><strong>\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong> BMS\/SCADA\u3068\u306e\u7d71\u5408\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<\/ul>\n<h2>\u5927\u578b\u30d5\u30ec\u30fc\u30e0MCCB\uff08630A\uff5e1600A\uff09<\/h2>\n<p>\u5927\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u3001\u4e3b\u96fb\u6e90\u5f15\u8fbc\u53e3\u3001\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u30d0\u30b9\u30bb\u30af\u30b7\u30e7\u30f3\u3001\u304a\u3088\u3073\u91cd\u5de5\u696d\u8ca0\u8377\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u96fb\u529b\u4f9b\u7d66\uff08\u307e\u305f\u306f\u30aa\u30f3\u30b5\u30a4\u30c8\u767a\u96fb\uff09\u3068\u65bd\u8a2d\u306e\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u4e3b\u8981\u306a\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u306e\u898f\u6a21\u3067\u306f\u3001\u5358\u4e00\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u6545\u969c\u304c\u5efa\u7269\u5168\u4f53\u307e\u305f\u306f\u751f\u7523\u30e9\u30a4\u30f3\u3092\u505c\u6b62\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u4fe1\u983c\u6027\u3068\u5354\u8abf\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n<h3>\u6a19\u6e96\u5b9a\u683c\u96fb\u6d41<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>\u5b9a\u683c\u96fb\u6d41\uff08A\uff09<\/strong><\/td>\n<td><strong>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/strong><\/td>\n<td><strong>\u4e00\u822c\u7684\u306aIcu\u7bc4\u56f2<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>630A<\/strong><\/td>\n<td>\u5c0f\u898f\u6a21\u306a\u7523\u696d\u7528\u4e3b\u96fb\u6e90\u5f15\u8fbc\u53e3\u3001\u5927\u898f\u6a21\u306a\u5efa\u7269\u30b5\u30fc\u30d3\u30b9<\/td>\n<td>50kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>800A<\/strong><\/td>\n<td>\u4e2d\u898f\u6a21\u306a\u7523\u696d\u7528\u4e3b\u96fb\u6e90\u3001\u8907\u6570\u306e\u5efa\u7269\u30ad\u30e3\u30f3\u30d1\u30b9\u914d\u96fb<\/td>\n<td>65kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>1000A<\/strong><\/td>\n<td>\u7523\u696d\u7528\u4e3b\u914d\u96fb\u76e4\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fcUPS\u5f15\u8fbc\u53e3<\/td>\n<td>65kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>1250A<\/strong><\/td>\n<td>\u91cd\u5de5\u696d\u7528\u4e3b\u96fb\u6e90\u3001\u5927\u898f\u6a21\u306a\u5546\u696d\u65bd\u8a2d<\/td>\n<td>85kA \u2013 100kA<\/td>\n<\/tr>\n<tr>\n<td><strong>1600A<\/strong><\/td>\n<td>\u6700\u5927MCCB\u5b9a\u683c; \u4e3b\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u3001\u4e00\u6b21\u5f15\u8fbc\u53e3<\/td>\n<td>85kA \u2013 150kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u6280\u8853\u7684\u7279\u6027<\/h3>\n<p><strong>\u906e\u65ad\u5bb9\u91cf<\/strong>: \u5927\u578b\u30d5\u30ec\u30fc\u30e0\u306f\u3001MCCB\u6280\u8853\u3067\u5229\u7528\u53ef\u80fd\u306a\u6700\u9ad8\u306eIcu\u5b9a\u683c\uff0865\uff5e150kA\uff09\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u30ec\u30d9\u30eb\u3092\u8d85\u3048\u308b\u3068\u3001\u901a\u5e38\u306f <a href=\"https:\/\/test.viox.com\/ja\/complete-guide-to-air-circuit-breakers-acb\/\">\u6c17\u4e2d\u906e\u65ad\u5668\uff08ACB\uff09<\/a> \u5f15\u51fa\u3057\u69cb\u9020\u306b\u79fb\u884c\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u9ad8\u5ea6\u306a\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8<\/strong>: \u5927\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u306f\u3001\u9ad8\u5ea6\u306a\u30de\u30a4\u30af\u30ed\u30d7\u30ed\u30bb\u30c3\u30b5\u5236\u5fa1\u306e\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30d7\u30ed\u30b0\u30e9\u30e0\u53ef\u80fd\u306a\u6642\u9593-\u96fb\u6d41\u7279\u6027\u66f2\u7dda<\/strong>: ANSI\u30ab\u30fc\u30d6\u3001IEC\u30ab\u30fc\u30d6\u3001\u307e\u305f\u306f\u30ab\u30b9\u30bf\u30e0\u8a2d\u5b9a<\/li>\n<li><strong>\u5730\u7d61\u4fdd\u8b77<\/strong>: \u8abf\u6574\u53ef\u80fd\u306a\u611f\u5ea6\u3068\u9045\u5ef6\u6642\u9593\uff0830mA\uff5e1200A\uff09<\/li>\n<li><strong>\u4e2d\u6027\u7dda\u4fdd\u8b77<\/strong>: \u4e2d\u6027\u7dda\u96fb\u6d41\u76e3\u8996\u4ed8\u304d\u306e4\u6975\u30e6\u30cb\u30c3\u30c8<\/li>\n<li><strong>\u30a2\u30fc\u30af\u6545\u969c\u691c\u51fa<\/strong>: \u706b\u707d\u4e88\u9632\u306e\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306eAFCI\u30e2\u30b8\u30e5\u30fc\u30eb<\/li>\n<li><strong>\u8a08\u6e2c\u3068\u30c7\u30fc\u30bf\u30ed\u30ae\u30f3\u30b0<\/strong>: \u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u96fb\u6d41\u3001\u96fb\u5727\u3001\u96fb\u529b\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u3001\u9ad8\u8abf\u6ce2<\/li>\n<li><strong>\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>: \u7d71\u5408\u306e\u305f\u3081\u306eModbus TCP\/IP\u3001Profinet\u3001BACnet<\/li>\n<\/ul>\n<p><strong>\u5916\u5f62\u5bf8\u6cd5<\/strong>: 1600A 4\u6975MCCB\u306e\u5bf8\u6cd5\u306f\u3001300mm\uff08W\uff09x 380mm\uff08H\uff09x 140mm\uff08D\uff09\u3092\u6e2c\u5b9a\u3067\u304d\u307e\u3059\u3002\u91cd\u91cf\u306f15kg\u3092\u8d85\u3048\u307e\u3059\u3002\u8a2d\u7f6e\u306b\u306f\u3001\u9069\u5207\u306a\u30c8\u30eb\u30af\u4ed5\u69d8\uff08\u591a\u304f\u306e\u5834\u5408\u300140\uff5e60 Nm\u306e\u7aef\u5b50\u30c8\u30eb\u30af\uff09\u3067\u3001\u5b9a\u683c\u30d0\u30b9\u30d0\u30fc\u307e\u305f\u306f\u30b1\u30fc\u30d6\u30eb\u30e9\u30b0\u3078\u306e\u78ba\u5b9f\u306a\u53d6\u308a\u4ed8\u3051\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n<p><strong>\u30c6\u30b9\u30c8\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/strong>: IEC 60947-2\u3067\u306f\u3001\u5927\u578b\u30d5\u30ec\u30fc\u30e0MCCB\u304c\u7279\u5b9a\u306e\u30c6\u30b9\u30c8\u30b7\u30fc\u30b1\u30f3\u30b9\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u8981\u6c42\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u91cd\u5927\u306a\u6545\u969c\uff08Icu\u4ed8\u8fd1\uff09\u306e\u5f8c\u3001\u63a5\u70b9\u306e\u6469\u8017\u3001\u30a2\u30fc\u30af\u30b7\u30e5\u30fc\u30c8\u306e\u72b6\u614b\u3001\u304a\u3088\u3073\u6a5f\u69cb\u306e\u6469\u8017\u3092\u691c\u67fb\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u30b5\u30a4\u30c8\u3067\u306f\u3001\u5e74\u6b21\u30c8\u30ea\u30c3\u30d7\u30c6\u30b9\u30c8\u30683\uff5e5\u5e74\u3054\u3068\u306e\u63a5\u89e6\u62b5\u6297\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u65bd\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u4e3b\u96fb\u6e90\u5f15\u8fbc\u53e3\u306e\u4f8b<\/h3>\n<p>2500kVA \/ 400V\u306e\u7523\u696d\u65bd\u8a2d\u306e\u5834\u5408\uff08\u63a8\u5b9a\u8ca0\u83773608A\u3001\u9700\u8981\u73870.6 = 2165A\uff09\uff1a<\/p>\n<ol>\n<li><strong>\u6545\u969c\u30ec\u30d9\u30eb\u3092\u8a08\u7b97\u3059\u308b<\/strong>: \u96fb\u529b\u4f1a\u793e\u306e\u6545\u969c\u5206\u62c5 = \u30b5\u30fc\u30d3\u30b9\u30dd\u30a4\u30f3\u30c8\u306780kA<\/li>\n<li><strong>\u906e\u65ad\u5668\u5b9a\u683c\u306e\u9078\u629e<\/strong>: 1600A MCCB\u3092\u9078\u629e\uff082165A\u306e\u9700\u8981\u3092\u8d85\u3048\u308b\u6b21\u306e\u6a19\u6e96\u30b5\u30a4\u30ba\u3001\u6210\u9577\u3092\u8a31\u5bb9\uff09<\/li>\n<li><strong>\u906e\u65ad\u5bb9\u91cf\u3092\u6307\u5b9a\u3059\u308b<\/strong>: Icu \u2265 80kA; \u5b89\u5168\u30de\u30fc\u30b8\u30f3\u3068\u3057\u3066100kA\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e<\/li>\n<li><strong>\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a<\/strong>: Ir = 0.9 x 1600A = 1440A\u3001Isd = 6400A \/ 0.4s\u3001Ii = 15000A<\/li>\n<li><strong>\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3<\/strong>: \u4e0b\u6d41\u306e630A\u30d5\u30a3\u30fc\u30c0\u30fc\u3068\u306e\u9078\u629e\u906e\u65ad\u3092\u3001\u6642\u9593-\u96fb\u6d41\u7279\u6027\u66f2\u7dda\u3092\u7528\u3044\u3066\u691c\u8a3c\u3059\u308b\u3002<\/li>\n<li><strong>\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong>: \u8ca0\u8377\u76e3\u8996\u3068\u9060\u9694\u30c8\u30ea\u30c3\u30d7\u6a5f\u80fd\u306e\u305f\u3081\u306bSCADA\u306b\u63a5\u7d9a\u3059\u308b\u3002<\/li>\n<\/ol>\n<h3>ACB\u5bfe\u5927\u578b\u30d5\u30ec\u30fc\u30e0MCCB<\/h3>\n<p><strong>MCCB\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408<\/strong>:<\/p>\n<ul>\n<li>\u96fb\u6d41 \u2264 1600A<\/li>\n<li>\u77ed\u7d61\u96fb\u6d41 \u2264 100kA (\u307e\u305f\u306f\u9ad8\u6027\u80fd\u30e2\u30c7\u30eb\u3067\u306f150kA)<\/li>\n<li>\u56fa\u5b9a\u8a2d\u7f6e (\u5f15\u51fa\u3057\u5f0f\u30b5\u30fc\u30d3\u30b9\u304c\u4e0d\u8981)<\/li>\n<li>\u4e88\u7b97\u306e\u5236\u7d04\u304b\u3089\u3001ACB\u3088\u308a\u3082\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u304c\u6709\u5229\u306a\u5834\u5408<\/li>\n<\/ul>\n<p><strong>ACB\u306b\u5207\u308a\u66ff\u3048\u308b\u5834\u5408<\/strong>:<\/p>\n<ul>\n<li>\u96fb\u6d41 &gt; 1600A (ACB\u306f6300A\u4ee5\u4e0a\u307e\u3067\u5bfe\u5fdc)<\/li>\n<li>\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306a\u3057\u3067\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u884c\u3046\u305f\u3081\u306b\u3001\u5f15\u51fa\u3057\u5f0f\u69cb\u9020\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<li>\u6975\u3081\u3066\u9ad8\u3044\u77ed\u7d61\u96fb\u6d41 (&gt;100kA) \u306b\u306f\u3001ACB\u306e\u906e\u65ad\u6280\u8853\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<li>\u53ef\u8996\u63a5\u70b9\u5206\u96e2\u307e\u305f\u306f\u5e83\u7bc4\u306a\u88dc\u52a9\u63a5\u70b9\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<\/ul>\n<h3>\u5927\u578b\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0<\/h3>\n<ul>\n<li><strong>\u8ca0\u8377\u96fb\u6d41<\/strong> 630-1600A<\/li>\n<li><strong>\u6545\u969c\u30ec\u30d9\u30eb<\/strong> 50-150kA<\/li>\n<li><strong>\u306e\u5fdc\u7528<\/strong> \u4e3b\u96fb\u6e90\u3001\u30b9\u30a4\u30c3\u30c1\u30ae\u30a2\u3001\u307e\u305f\u306f\u91cd\u8981\u306a\u914d\u96fb\u30dd\u30a4\u30f3\u30c8\u306b\u95a2\u308f\u308b\u5834\u5408<\/li>\n<li><strong>\u9ad8\u5ea6\u306a\u4fdd\u8b77<\/strong> (\u8a08\u6e2c\u3001\u901a\u4fe1\u3001\u5730\u7d61) \u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<li><strong>\u4e88\u7b97\u3068\u30b9\u30da\u30fc\u30b9<\/strong> ACB\u6280\u8853\u3088\u308a\u3082MCCB\u304c\u6709\u5229\u306a\u5834\u5408<\/li>\n<\/ul>\n<h2>MCCB\u9298\u677f\u306e\u8aad\u307f\u65b9<\/h2>\n<p>\u3059\u3079\u3066\u306eIEC\u6e96\u62e0MCCB\u306b\u306f\u3001\u91cd\u8981\u306a\u4ed5\u69d8\u30c7\u30fc\u30bf\u304c\u8868\u793a\u3055\u308c\u305f\u9298\u677f\uff08\u30cd\u30fc\u30e0\u30d7\u30ec\u30fc\u30c8\uff09\u304c\u4ed8\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u3092\u89e3\u8aad\u3059\u308b\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u906e\u65ad\u5668\u3092\u6b63\u3057\u304f\u9078\u629e\u3001\u8a2d\u7f6e\u3001\u304a\u3088\u3073\u4fdd\u5b88\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h3>\u5fc5\u9808\u9298\u677f\u60c5\u5831<\/h3>\n<p>\u4e00\u822c\u7684\u306aMCCB\u9298\u677f\u306b\u306f\u3001\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>1. \u88fd\u9020\u696d\u8005\u3068\u30e2\u30c7\u30eb<\/strong>: \u30d6\u30e9\u30f3\u30c9\u540d\u3068\u88fd\u54c1\u30b7\u30ea\u30fc\u30ba (\u4f8b: \u201cVIOX VMC3-630\u201d)<\/li>\n<li><strong>2. IEC\u898f\u683c\u30de\u30fc\u30ad\u30f3\u30b0<\/strong>: \u201cIEC 60947-2\u201d \u307e\u305f\u306f \u201cEN 60947-2\u201d \u306f\u6e96\u62e0\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/li>\n<li><strong>3. \u5b9a\u683c\u96fb\u6d41 (In)<\/strong>: \u57fa\u6e96\u5468\u56f2\u6e29\u5ea6 (40\u00b0C) \u3067\u306e\u906e\u65ad\u5668\u306e\u516c\u79f0\u96fb\u6d41\u5b9a\u683c<\/li>\n<li><strong>4. \u5b9a\u683c\u96fb\u5727 (Ue)<\/strong>: \u52d5\u4f5c\u96fb\u5727\u5b9a\u683c (\u4f8b: 690V AC, 250V DC)<\/li>\n<li><strong>5. \u906e\u65ad\u5bb9\u91cf (Icu \/ Ics)<\/strong>: Icu (\u7a76\u6975) \u304a\u3088\u3073 Ics (\u30b5\u30fc\u30d3\u30b9) \u306e\u9650\u754c\u5024 (kA)<\/li>\n<li><strong>6. \u4f7f\u7528\u533a\u5206<\/strong>: \u30ab\u30c6\u30b4\u30eaA (\u77ac\u6642) \u307e\u305f\u306f\u30ab\u30c6\u30b4\u30eaB (\u6642\u5ef6)<\/li>\n<li><strong>7. \u5b9a\u683c\u7d76\u7e01\u96fb\u5727 (Ui)<\/strong>: \u6700\u5927\u30b7\u30b9\u30c6\u30e0\u8010\u96fb\u5727<\/li>\n<li><strong>8. \u5b9a\u683c\u30a4\u30f3\u30d1\u30eb\u30b9\u8010\u96fb\u5727 (Uimp)<\/strong>: \u30b5\u30fc\u30b8\u8010\u6027 (\u4f8b: 8kV)<\/li>\n<li><strong>9. \u6975\u6570\u3068\u69cb\u6210<\/strong>: 3P \u307e\u305f\u306f 4P<\/li>\n<li><strong>10. \u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a<\/strong>: Ir\u3001Isd\u3001Ii \u306e\u7bc4\u56f2 (\u8abf\u6574\u53ef\u80fd\u306a\u5834\u5408)<\/li>\n<li><strong>11. \u8a8d\u8a3c<\/strong>: CE\u3001CCC\u3001UL\u30de\u30fc\u30af<\/li>\n<\/ul>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/mccb-rating-plate-example-showing-all-specifications.webp\" alt=\"MCCB Rating Plate Example showing all specifications\" \/><figcaption>\u56f33\uff1a\u5fc5\u9808\u4ed5\u69d8\u3092\u8868\u793a\u3059\u308b\u8a73\u7d30\u306aMCCB\u9298\u677f\uff1aIn\uff08\u5b9a\u683c\u96fb\u6d41\uff09\u3001Ue\uff08\u52d5\u4f5c\u96fb\u5727\uff09\u3001Icu\/Ics\uff08\u906e\u65ad\u5bb9\u91cf\uff09\u3001IEC 60947-2\u6e96\u62e0\u3001\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a\u3001\u304a\u3088\u3073\u8a8d\u8a3c\u30de\u30fc\u30af\u3002\u8a2d\u7f6e\u524d\u306b\u3001\u3053\u308c\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u8a2d\u8a08\u8981\u4ef6\u3068\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u5e38\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/figcaption><\/figure>\n<h3>\u8a2d\u7f6e\u524d\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068<\/h3>\n<ol>\n<li><strong>In \u2265 \u8a08\u7b97\u3055\u308c\u305f\u8ca0\u8377\u96fb\u6d41<\/strong> (\u8a72\u5f53\u3059\u308b\u5834\u5408\u3001\u6e29\u5ea6\/\u30b0\u30eb\u30fc\u30d7\u5316\u306b\u3088\u308b\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8003\u616e)<\/li>\n<li><strong>Ue = \u30b7\u30b9\u30c6\u30e0\u96fb\u5727<\/strong> (\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b; 400V\u906e\u65ad\u5668\u306f690V\u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u8b77\u3067\u304d\u306a\u3044)<\/li>\n<li><strong>Icu \u2265 \u4e88\u60f3\u6545\u969c\u96fb\u6d41<\/strong> \u8a2d\u7f6e\u5834\u6240\u306b\u3066<\/li>\n<li><strong>Ics \u304c\u9069\u5207<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051 (\u6700\u3082\u91cd\u8981\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f75-100%)<\/li>\n<li><strong>\u6975\u6570\u304c\u30b7\u30b9\u30c6\u30e0\u3068\u4e00\u81f4<\/strong>: \u4e09\u76f8\u306e\u5834\u5408\u306f3P\u3001\u4e2d\u6027\u7dda\u4fdd\u8b77\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f4P<\/li>\n<li><strong>\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a<\/strong> (\u8abf\u6574\u53ef\u80fd\u306a\u5834\u5408) \u5354\u8abf\u691c\u8a0e\u306b\u5f93\u3063\u3066\u69cb\u6210<\/li>\n<li><strong>\u8a8d\u8a3c\u53d6\u5f97<\/strong> \u8a2d\u7f6e\u5730\u57df\u3067\u6709\u52b9<\/li>\n<\/ol>\n<h2>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5225\u9078\u629e\u30ac\u30a4\u30c9<\/h2>\n<p>\u9069\u5207\u306aMCCB\u96fb\u6d41\u5b9a\u683c\u306e\u9078\u629e\u306f\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u8ca0\u8377\u30bf\u30a4\u30d7\u3001\u77ed\u7d61\u96fb\u6d41\u3001\u304a\u3088\u3073\u5354\u8abf\u8981\u4ef6\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u30af\u30a4\u30c3\u30af\u9078\u629e\u8868<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>\u306e\u5fdc\u7528<\/strong><\/td>\n<td><strong>\u8ca0\u8377\u96fb\u6d41<\/strong><\/td>\n<td><strong>\u63a8\u5968MCCB\u5b9a\u683c<\/strong><\/td>\n<td><strong>\u4e00\u822c\u7684\u306aIcu<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u5c0f\u578b\u30e2\u30fc\u30bf\u30fc (7.5kW)<\/td>\n<td>15A<\/td>\n<td><strong>20A \u307e\u305f\u306f 25A<\/strong><\/td>\n<td>25-36kA<\/td>\n<\/tr>\n<tr>\n<td>\u4e2d\u578b\u30e2\u30fc\u30bf\u30fc (30kW)<\/td>\n<td>57A<\/td>\n<td><strong>63A\u307e\u305f\u306f80A<\/strong><\/td>\n<td>36-50kA<\/td>\n<\/tr>\n<tr>\n<td>\u5927\u578b\u30e2\u30fc\u30bf\u30fc (110kW)<\/td>\n<td>200A<\/td>\n<td><strong>250A<\/strong><\/td>\n<td>50-65kA<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30d5\u30a3\u30b9\u30d5\u30ed\u30a2\u30d5\u30a3\u30fc\u30c0\u30fc<\/td>\n<td>180A<\/td>\n<td><strong>200A\u307e\u305f\u306f250A<\/strong><\/td>\n<td>36-50kA<\/td>\n<\/tr>\n<tr>\n<td>\u5efa\u7269\u5e79\u7dda<\/td>\n<td>450A<\/td>\n<td><strong>500A\u307e\u305f\u306f630A<\/strong><\/td>\n<td>50-65kA<\/td>\n<\/tr>\n<tr>\n<td>\u5c0f\u898f\u6a21\u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9<\/td>\n<td>650A<\/td>\n<td><strong>800A<\/strong><\/td>\n<td>65-85kA<\/td>\n<\/tr>\n<tr>\n<td>\u5de5\u696d\u7528\u4e3b\u96fb\u6e90<\/td>\n<td>1200A<\/td>\n<td><strong>1250A\u307e\u305f\u306f1600A<\/strong><\/td>\n<td>85-100kA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u91cd\u8981\u306a\u9078\u629e\u306b\u95a2\u3059\u308b\u6ce8\u610f\u70b9<\/h3>\n<ol>\n<li><strong>In\u3092\u904e\u5c0f\u8a55\u4fa1\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044<\/strong>: \u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u5b9a\u683c\u306e90%\u306e\u96fb\u6d41\u3092\u7d99\u7d9a\u7684\u306b\u6d41\u3059\u3068\u3001\u904e\u71b1\u3057\u3066\u52a3\u5316\u3057\u307e\u3059<\/li>\n<li><strong>\u5e38\u306bIcu\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>: \u906e\u65ad\u5bb9\u91cf\u304c\u4e0d\u8db3\u3057\u3066\u3044\u308b\u3068\u3001\u6545\u969c\u6642\u306b\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u58ca\u6ec5\u7684\u306a\u6545\u969c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/li>\n<li><strong>\u5468\u56f2\u6e29\u5ea6\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>: \u6a19\u6e96\u5b9a\u683c\u306f40\u00b0C\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u9ad8\u6e29\u306e\u5834\u5408\u306f\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3066\u304f\u3060\u3055\u3044\uff0850\u00b0C\u30670.9\u500d\u300160\u00b0C\u30670.8\u500d\uff09<\/li>\n<li><strong>\u6642\u9593\u96fb\u6d41\u7279\u6027\u3092\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>: \u30e1\u30fc\u30ab\u30fc\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4f7f\u7528\u3057\u3066\u3001\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u9078\u629e\u6027\u3092\u691c\u8a3c\u3057\u3066\u304f\u3060\u3055\u3044<\/li>\n<li><strong>\u5c06\u6765\u306e\u62e1\u5f35\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>: \u8a2d\u5099\u306e\u62e1\u5f35\u306e\u305f\u3081\u306b\u3001In\u306b10\u301c25%\u306e\u30de\u30fc\u30b8\u30f3\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044<\/li>\n<\/ol>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/mccb-selection-decision-flowchart.webp\" alt=\"MCCB Selection Decision Flowchart\" \/><figcaption>\u56f35\uff1a\u8ca0\u8377\u96fb\u6d41\u306b\u57fa\u3065\u3044\u3066\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3057\u3001\u6b21\u306b\u906e\u65ad\u5bb9\u91cf\u306e\u691c\u8a3c\u3001\u30b5\u30fc\u30d3\u30b9\u5b9a\u683c\u306e\u78ba\u8a8d\u3001\u304a\u3088\u3073\u5354\u8abf\u89e3\u6790\u3092\u884c\u3046MCCB\u9078\u629e\u30d5\u30ed\u30fc\u30c1\u30e3\u30fc\u30c8\u3002\u3053\u306e\u4f53\u7cfb\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u305f\u30d6\u30ec\u30fc\u30ab\u30fc\u4ed5\u69d8\u3092\u78ba\u4fdd\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/figcaption><\/figure>\n<h2>\u7d50\u8ad6<\/h2>\n<p>16A\u304b\u30891600A\u307e\u3067\u306e\u6a19\u6e96\u7684\u306aMCCB\u96fb\u6d41\u5b9a\u683c\u306f\u3001\u6700\u65b0\u306e\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u306e\u57fa\u790e\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u3001\u96fb\u6d41\u5b9a\u683c\u3001\u304a\u3088\u3073\u906e\u65ad\u5bb9\u91cf\u306e\u95a2\u4fc2\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u6a5f\u5668\u3092\u4fdd\u8b77\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5354\u8abf\u3092\u78ba\u4fdd\u3057\u3001IEC 60947-2\u5b89\u5168\u898f\u683c\u306b\u9069\u5408\u3059\u308b\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002.<\/p>\n<p>\u91cd\u70b9takeaways:<\/p>\n<ul>\n<li><strong>In\u3092\u8ca0\u8377\u8981\u4ef6\u306b\u5408\u308f\u305b\u307e\u3059<\/strong> \u62e1\u5f35\u3068\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u305f\u3081\u306b10\u301c25%\u306e\u30de\u30fc\u30b8\u30f3\u3092\u53d6\u308a\u307e\u3059<\/li>\n<li><strong>\u6545\u969c\u89e3\u6790\u306b\u5bfe\u3057\u3066Icu\u3092\u691c\u8a3c\u3057\u307e\u3059<\/strong>\u2014\u906e\u65ad\u5bb9\u91cf\u304c\u4e0d\u5341\u5206\u306a\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u7d76\u5bfe\u306b\u8a2d\u7f6e\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044<\/li>\n<li><strong>\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u3092\u8ce2\u304f\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>\u2014\u226450kA \/ \u2264250A\u306e\u5834\u5408\u306f\u5c0f\u578b\u30d5\u30ec\u30fc\u30e0\u300130-85kA \/ 250-630A\u306e\u5834\u5408\u306f\u4e2d\u578b\u30d5\u30ec\u30fc\u30e0\u300150-150kA \/ 630-1600A\u306e\u5834\u5408\u306f\u5927\u578b\u30d5\u30ec\u30fc\u30e0<\/li>\n<li><strong>\u5b9a\u683c\u9298\u677f\u3092\u6ce8\u610f\u6df1\u304f\u8aad\u3093\u3067\u304f\u3060\u3055\u3044<\/strong>\u2014\u8a2d\u7f6e\u524d\u306bIn\u3001Ue\u3001Icu\u3001Ics\u3001\u6975\u6570\u3001\u304a\u3088\u3073\u8a8d\u8a3c\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/li>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u8abf\u67fb\u3068\u9023\u643a\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>\u2014\u6642\u9593\u96fb\u6d41\u7279\u6027\u3092\u4f7f\u7528\u3057\u3066\u3001\u914d\u96fb\u968e\u5c64\u5168\u4f53\u306e\u9078\u629e\u6027\u3092\u78ba\u4fdd\u3057\u3066\u304f\u3060\u3055\u3044<\/li>\n<\/ul>\n<p>30kW\u30e2\u30fc\u30bf\u30fc\u309263A\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u4fdd\u8b77\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u5de5\u696d\u65bd\u8a2d\u306e1600A\u4e3b\u96fb\u6e90\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u539f\u5247\u306f\u540c\u3058\u3067\u3059\u3002\u6b63\u78ba\u306a\u8ca0\u8377\u8a08\u7b97\u3001\u9069\u5207\u306a\u906e\u65ad\u5bb9\u91cf\u3001\u304a\u3088\u3073\u691c\u8a3c\u6e08\u307f\u306e\u5354\u8abf\u3067\u3059\u3002.<\/p>\n<hr \/>\n<p><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u3057\u305fMCCB\u306e\u9078\u629e\u3067\u304a\u56f0\u308a\u3067\u3059\u304b\uff1f<\/strong> VIOX Electric\u306f\u300116A\u304b\u30891600A\u307e\u3067\u306e\u3059\u3079\u3066\u306e\u6a19\u6e96\u5b9a\u683c\u3067\u3001IEC 60947-2\u306b\u6e96\u62e0\u3057\u305fMCCB\u3092\u88fd\u9020\u3057\u3066\u3044\u307e\u3059\u3002\u5f53\u793e\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u629e\u3001\u5354\u8abf\u8abf\u67fb\u3001\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u6280\u8853\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002. <a href=\"#\">\u4ed5\u69d8\u304a\u3088\u3073\u6280\u8853\u76f8\u8ac7\u306b\u3064\u3044\u3066\u306f\u3001\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002.<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Selecting the right molded case circuit breaker (MCCB) starts with understanding standard breaker sizes. Unlike miniature circuit breakers (MCBs) that protect final circuits, MCCBs cover a much wider current range\u2014from 16A branch feeders to 1600A main incomers\u2014and choosing the correct rating directly impacts system safety, coordination, and project costs. This guide maps the complete IEC 60947-2 standard current ratings, explains frame size categories, and shows you how to match breaker specifications to your application. Whether you&#8217;re sizing a motor feeder, a building sub-main, or a switchgear incomer, you&#8217;ll find the technical details and selection logic you need. Quick Reference: Standard MCCB Current Ratings IEC-compliant MCCBs are available in these standard [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20574,"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-20573","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/20573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/comments?post=20573"}],"version-history":[{"count":4,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/20573\/revisions"}],"predecessor-version":[{"id":20578,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/20573\/revisions\/20578"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media\/20574"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media?parent=20573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/categories?post=20573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/tags?post=20573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}