{"id":3540,"date":"2026-09-04T09:00:00","date_gmt":"2026-09-04T01:00:00","guid":{"rendered":"https:\/\/eqsvq3fzct.wpdns.site\/blog\/compact-and-reliable-mccb-for-safe-low-voltage-electrical-systems\/"},"modified":"2026-10-19T09:26:54","modified_gmt":"2026-10-19T01:26:54","slug":"%e5%ae%89%e5%85%a8%e3%81%aa%e4%bd%8e%e9%9b%bb%e5%9c%a7%e9%9b%bb%e6%b0%97%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e5%90%91%e3%81%91%e3%82%b3%e3%83%b3%e3%83%91%e3%82%af%e3%83%88%e3%81%a7%e4%bf%a1%e9%a0%bc","status":"publish","type":"post","link":"https:\/\/w9-group.com\/ja\/blog\/compact-and-reliable-mccb-for-safe-low-voltage-electrical-systems\/","title":{"rendered":"\u5b89\u5168\u306a\u4f4e\u96fb\u5727\u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u5411\u3051\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044MCCB"},"content":{"rendered":"<div data-content-revision=\"topic-research-geo information-gain\" data-revision-date=\"2026-10-19\">\n<p>A <strong>\u30b3\u30f3\u30d1\u30af\u30c8\u30d6\u30ec\u30fc\u30ab<\/strong> \u30d1\u30cd\u30eb\u306e\u5207\u308a\u8fbc\u307f\u306b\u306f\u53ce\u307e\u308a\u3064\u3064\u3082\u3001\u7aef\u5b50\u3084\u30b1\u30fc\u30d6\u30eb\u306e\u66f2\u3052\u3001\u51b7\u5374\u7528\u306e\u30b9\u30da\u30fc\u30b9\u304c\u5341\u5206\u306b\u3068\u3089\u308c\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30cd\u30eb\u30e1\u30fc\u30ab\u30fc\u306b\u3068\u3063\u3066\u3001\u91cd\u8981\u306a\u554f\u984c\u306f\u3001 <strong>MCCB\u306e\u5b8c\u5168\u306a\u69cb\u6210<\/strong> \u96fb\u6c17\u7684\u304a\u3088\u3073\u71b1\u7684\u6027\u80fd\u3068\u56f3\u9762\u306b\u9069\u5408\u3057\u307e\u3059\u3002\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\u306f1\u3064\u306e\u9078\u629e\u5165\u529b\u3067\u3042\u308a\u3001\u4fe1\u983c\u6027\u3092\u793a\u3059\u8a3c\u62e0\u3067\u3082\u306a\u3044\u3057\u3001\u6545\u969c\u3084\u8abf\u6574\u306b\u95a2\u3059\u308b\u8abf\u67fb\u306e\u4ee3\u308f\u308a\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p>\u8981\u7d04\uff1a\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306f\u3001\u5b9a\u683c\u96fb\u5727\u3001\u9023\u7d9a\u96fb\u6d41\u3001\u906e\u65ad\u5bb9\u91cf\u3001\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a\u304c\u5b8c\u5168\u306a\u8a2d\u7f6e\u306b\u5408\u308f\u305b\u3066\u3042\u308b\u5834\u5408\u306b\u306e\u307f\u4fe1\u983c\u6027\u304c\u5f97\u3089\u308c\u307e\u3059\u3002IEC 60947-2\u3067\u306f\u4e3b\u8981\u306a\u56de\u8def\u906e\u65ad\u88c5\u7f6e\u306e\u8981\u4ef6\u3068\u8a66\u9a13\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002IEC 60364-4-43\u3067\u306f\u3001\u4f4e\u96fb\u5727\u8a2d\u5099\u306b\u304a\u3051\u308b\u904e\u96fb\u6d41\u4fdd\u8b77\u304c\u53d6\u308a\u6271\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u5f53\u793e\u306f\u627f\u8a8d\u524d\u306b\u306f\u8ca0\u8377\u3001\u30a4\u30f3\u30eb\u30c3\u30b7\u30e5\u3001\u30d5\u30a9\u30eb\u30c8\u30ec\u30d9\u30eb\u3001\u5468\u56f2\u6e29\u5ea6\u3001\u30b3\u30f3\u30c0\u30af\u30bf\u30fc\u306e\u52a3\u5316\u306e\u8a18\u9332\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u6b63\u78ba\u306a\u30d5\u30ec\u30fc\u30e0\u3001\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u3001\u304a\u3088\u3073\u4ed8\u5c5e\u54c1\u306e\u8a2d\u7f6e\u304c\u5b8c\u4e86\u3057\u307e\u3059\u3002\u3053\u306e\u8a3c\u62e0\u306b\u57fa\u3065\u304f\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u3001\u7b50\u4f53\u30b5\u30a4\u30ba\u3060\u3051\u3067\u306e\u9078\u629e\u3088\u308a\u3082\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30b3\u30b9\u30c8\u304c\u524a\u6e1b\u3055\u308c\u308b\u3053\u3068\u304c\u901a\u5e38\u3067\u3059\u3002.<\/p>\n<figure class=\"article-image\" style=\"margin:1em 0;\">\n<img decoding=\"async\" alt=\"\u8a2d\u7f6e\u7528\u5c01\u7b52\u30ec\u30d3\u30e5\u30fc\u306b\u4ed8\u5c5e\u3059\u308bMCCB\u88fd\u54c1\u306e\u6982\u8981\" loading=\"lazy\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/wlm6rt-1250a-3300-3p-wlm6rt-series-moulded-case-circuit-breaker400v-690v-gallery-09.webp\" style=\"display:block;width:50%;max-width:50%;height:auto;margin:0 auto;\"\/><figcaption>\u8a2d\u7f6e\u7528\u5c01\u7b52\u30ec\u30d3\u30e5\u30fc\u306b\u4ed8\u5c5e\u3059\u308bMCCB\u88fd\u54c1\u306e\u6982\u8981\u3002.<\/figcaption><\/figure>\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306e\u8a2d\u8a08\u8981\u4ef6<\/h2>\n<p>MCCB\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3001\u7d76\u7e01\u3001\u904e\u96fb\u6d41\u906e\u65ad\u3092\u4e00\u4f53\u5316\u3057\u305f\u6210\u5f62\u7b50\u4f53\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u300c\u30b3\u30f3\u30d1\u30af\u30c8\u300d\u3068\u306f\u901a\u5e38\u3001\u30d5\u30ec\u30fc\u30e0\u3068\u8a2d\u7f6e\u9762\u7a4d\u3092\u6307\u3057\u307e\u3059\u3002\u7279\u5b9a\u306e\u30a2\u30f3\u30da\u30a2\u5b9a\u683c\u3001\u65ad\u9762\u7a4d\u3001\u6e29\u5ea6\u6027\u80fd\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4fe1\u983c\u6027\u306f\u3001\u6a5f\u5668\u3092\u96fb\u6c17\u7528\u9014\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3057\u3001\u88fd\u9020\u5143\u306e\u56f3\u9762\u306b\u5f93\u3063\u3066\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u5b9f\u73fe\u3055\u308c\u307e\u3059\u3002.<\/p>\n<p>\u4f4e\u96fb\u5727\u9001\u96fb\u7528\u306e\u5834\u5408\u30014\u3064\u306e\u30c7\u30fc\u30bf\u30b0\u30eb\u30fc\u30d7\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<ul>\n<li>\u96fb\u529b\u91cf\uff1a\u8a55\u4fa1\u3055\u308c\u308b\u4f7f\u7528\u96fb\u5727\uff08U<sub>e<\/sub>), \u5468\u6ce2\u6570\u3001\u9023\u7d9a\u96fb\u6d41\uff08I<sub>n<\/sub>) \u305d\u3057\u3066\u3001AC\u307e\u305f\u306fDC\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3002.<\/li>\n<li>\u6545\u969c\u7528\u8ca0\u8377\uff1a\u4e88\u5099\u7684\u306a\u77ed\u7d61\u96fb\u6d41\u304a\u3088\u3073\u5ba3\u8a00\u3055\u308c\u305f\u6700\u7d42\u304a\u3088\u3073\u30b5\u30fc\u30d3\u30b9\u5bb9\u91cf\uff08I\uff09<sub>cu<\/sub> \u305d\u3057\u3066\u3001\u79c1<sub>cs<\/sub>\u5b9f\u969b\u306e\u96fb\u5727\u3067).<\/li>\n<li>\u4fdd\u8b77\u52d5\u4f5c\uff1a\u30b5\u30fc\u30de\u30eb\u30fb\u30de\u30b0\u30cd\u30c3\u30c8\u5f0f\u307e\u305f\u306f\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7\u6a5f\u80fd, <a href=\"https:\/\/w9-group.com\/ja\/blog\/advantages-of-adjustable-type-of-mccb\/\">\u8abf\u6574\u53ef\u80fd\u306a\u30d4\u30c3\u30af\u30a2\u30c3\u30d7<\/a>, \u77ed\u6642\u9593\u9045\u5ef6\u304a\u3088\u3073\u63a5\u5730\u969c\u5bb3\u30aa\u30d7\u30b7\u30e7\u30f3\u3002.<\/li>\n<li>\u6a5f\u68b0\u7684\u9069\u5408\u6027\uff1a\u30dd\u30fc\u30eb\u6570\u3001\u7aef\u5b50\u914d\u7f6e\u3001\u5c0e\u4f53\u30b5\u30a4\u30ba\u3001\u30a2\u30af\u30bb\u30b5\u30ea\u30fc\u30b9\u30da\u30fc\u30b9\u3001\u30af\u30ea\u30fc\u30d7\u8ddd\u96e2\u3001\u304a\u3088\u3073\u7b50\u4f53\u306e\u71b1\u653e\u6563\u6027\u80fd.<\/li>\n<\/ul>\n<p>IEC 60947-2:2024\u306f\u3001IEC\u304c\u73fe\u5728\u516c\u958b\u3057\u3066\u3044\u308b6\u7248\u306e\u88fd\u54c1\u898f\u683c\u3067\u3059\u3002\u9069\u7528\u5951\u7d04\u304a\u3088\u3073\u56fd\u5185\u63a1\u7528\u306b\u3088\u308a\u3001\u5fc5\u8981\u306a\u7248\u304c\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u30013\u6975\u914d\u7dda\u306b\u3064\u3044\u3066\u3082\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u304a\u3088\u3073\u63a5\u5730\u8981\u4ef6\u306b\u6e96\u62e0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u898f\u683c\u306e\u96fb\u5727\u7bc4\u56f2\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u30d6\u30ec\u30fc\u30ab\u306b\u540c\u4e00\u306e\u96fb\u5727\u307e\u305f\u306f\u7d76\u7e01\u5b9a\u683c\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>\u5b8c\u5168\u306a\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u7528\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u30bf\u30fc\u30df\u30ca\u30eb\u30ab\u30d0\u30fc\u3001\u30b9\u30d7\u30ec\u30fc\u30e4\u30fc\u3001\u56de\u8ee2\u30cf\u30f3\u30c9\u30eb\u3001\u30b7\u30e3\u30f3\u30c8\u30ea\u30ea\u30fc\u30b9\u3001\u304a\u3088\u3073\u6307\u5b9a\u3055\u308c\u305f\u5c0e\u7dda\u306e\u53d6\u308a\u4ed8\u3051\u3089\u308c\u305f\u914d\u7f6e\u56f3\u3092\u914d\u7f6e\u3057\u307e\u3059\u3002\u30b1\u30fc\u30d6\u30eb\u306e\u66f2\u3052\u30b9\u30da\u30fc\u30b9\u3068\u5de5\u5177\u306e\u30a2\u30af\u30bb\u30b9\u3092\u3001\u88f8\u306e\u30d6\u30ec\u30fc\u30ab\u306e\u5bf8\u6cd5\u304b\u3089\u5206\u96e2\u3057\u3066\u304f\u3060\u3055\u3044\u3002OSHA 1910.303\u306f\u3001\u7ba1\u5185\u3067\u306e\u30ef\u30a4\u30e4\u30fc\u66f2\u3052\u30b9\u30da\u30fc\u30b9\u3001\u7d76\u7e01\u6750\u3001\u52a0\u71b1\u3001\u304a\u3088\u3073\u610f\u56f3\u3055\u308c\u305f\u7528\u9014\u3092\u3001\u305d\u306e\u7ba1\u5185\u3067\u306e\u9069\u5408\u6027\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805\u3068\u3057\u3066\u660e\u78ba\u306b\u7279\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u554f\u984c\u306f\u3001\u4f9b\u7d66\u3055\u308c\u305f\u30a2\u30bb\u30f3\u30d6\u30ea\u69cb\u6210\u304c\u78ba\u8a8d\u3055\u308c\u305f\u6761\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3067\u306f\u306a\u304f\u3001\u672c\u4f53\u3092\u7b50\u4f53\u306b\u53ce\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3067\u3059\u3002.<\/p>\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306e\u30b5\u30a4\u30ba\u8a2d\u5b9a<\/h2>\n<h3>\u8ca0\u8377\u30c7\u30fc\u30bf\u3068\u6e29\u5ea6\u30c7\u30fc\u30bf\u3092\u306f\u3058\u3081\u306b<\/h3>\n<p>\u5b9f\u969b\u306e\u30c7\u30e5\u30fc\u30c6\u30a3\u30b5\u30a4\u30af\u30eb\u3001\u30e2\u30fc\u30bf\u30fc\u30c7\u30fc\u30bf\u3001\u96fb\u529b\u56e0\u5b50\u306e\u7d44\u307f\u5408\u308f\u305b\u304b\u3089\u8a2d\u8a08\u96fb\u6d41\u3092\u8a08\u7b97\u3057\u3001\u9069\u7528\u53ef\u80fd\u306a\u4fee\u6b63\u3092\u52a0\u3048\u305f\u5f8c\u3001\u30b3\u30f3\u30c0\u30af\u30bf\u30fc\u5bb9\u91cf\u3068\u6bd4\u8f03\u3057\u307e\u3059\u3002\u4f8b\u3068\u3057\u3066\u3001\u30d0\u30e9\u30f3\u30b9\u8abf\u5149\u5f0f\u306e7.5 kW\u306e3\u76f8\u96fb\u6c17\u5165\u529b\uff08230 V\u30e9\u30a4\u30f3\u5bfe\u30e9\u30a4\u30f3\u63a5\u7d9a\u3001\u96fb\u529b\u56e0\u5b50\u306e\u5358\u4f4d\u306f1\uff09\u306f\u3001I = P\/(sqrt(3) \u00d7 V \u00d7 \u96fb\u529b\u56e0\u6570)\u3068\u306a\u308a\u3001\u7d0418.8 A\u3068\u306a\u308a\u307e\u3059\u30027.5 kW\u304c\u30b7\u30e3\u30d5\u30c8\u51fa\u529b\u3067\u3042\u308b\u5834\u5408\u3001\u30e2\u30fc\u30bf\u30fc\u52b9\u7387\u3082\u5206\u6bcd\u306b\u5165\u529b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u4f8b\u306f\u3001\u30e2\u30fc\u30bf\u306e\u6027\u80fd\u8868\u306e\u5b9a\u683c\u5024\u3067\u3082\u306a\u304f\u3001\u627f\u8a8d\u3055\u308c\u305f\u30d6\u30ec\u30fc\u30ab\u306e\u30b5\u30a4\u30ba\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p>\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u30d5\u30ec\u30fc\u30e0\u3067\u306f\u3001\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u72ed\u3044\u30b9\u30da\u30fc\u30b9\u306b\u53ce\u307e\u308b\u5834\u5408\u306b\u71b1\u304c\u767a\u6563\u3057\u3084\u3059\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30ab\u30fc\u306e\u6e29\u5ea6\u964d\u4e0b\u8868\u306b\u5f93\u3044\u3001\u7aef\u5b50\u30c8\u30eb\u30af\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002IEC 60947-2\u306e\u6e29\u5ea6\u4e0a\u6607\u8a66\u9a13\u3067\u306f\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u8a66\u9a13\u624b\u9806\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u6df7\u96d1\u3057\u305f\u73fe\u5834\u3067\u306f\u3001\u8a31\u5bb9\u3055\u308c\u308b\u9023\u7d9a\u8ca0\u8377\u3092\u4f4e\u304f\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u30d0\u30b9\u306e\u5834\u6240\u3067\u306e\u7834\u58ca\u80fd\u529b\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u5909\u5727\u5668\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3001\u5c0e\u7dda\u9577\u3001\u304a\u3088\u3073\u516c\u7528\u30c7\u30fc\u30bf\u304b\u3089\u3001\u5c06\u6765\u306e\u77ed\u7d61\u96fb\u6d41\u3092\u63a8\u5b9a\u3057\u307e\u3059\u3002 I \u3092\u9078\u629e\u3057\u307e\u3059<sub>cu<\/sub> \u305d\u3057\u3066\u3001\u79c1<sub>cs<\/sub> \u8a2d\u7f6e\u6642\u306e\u96fb\u5727\u3067\u6307\u5b9a\u3055\u308c\u305f\u5024\u3092\u4f7f\u7528\u3057\u3001\u305d\u306e\u5f8c\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u4fdd\u8b77\u88c5\u7f6e\u3092\u5099\u3048\u305f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u307e\u305f\u306f\u30ab\u30b9\u30b1\u30fc\u30c9\u30c6\u30fc\u30d6\u30eb\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002AC\u65ad\u9762\u7a4d\u5024\u3092DC\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u306b\u30b3\u30d4\u30fc\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002DC\u30a2\u30fc\u30af\u6d88\u6ec5\u3001\u30dd\u30fc\u30eb\u30b7\u30ea\u30fc\u30ba\u914d\u7f6e\u3001\u304a\u3088\u3073\u6975\u6027\u3068\u306f\u7570\u306a\u308b\u8a2d\u8a08\u5909\u6570\u3067\u3059\u3002.<\/p>\n<p>\u6b63\u76f4\u306a\u56de\u7b54\u306f\u3001\u5c0f\u3055\u3044\u30d5\u30ec\u30fc\u30e0\u306f\u5206\u5c90\u56de\u8def\u306b\u9069\u3057\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001\u9ad8\u3044\u6545\u969c\u8010\u6027\u3084\u8abf\u6574\u304c\u5fc5\u8981\u306a\u30d5\u30a3\u30fc\u30c0\u30fc\u3067\u306f\u3088\u308a\u5927\u304d\u306a\u30d5\u30ec\u30fc\u30e0\u304c\u5fc5\u8981\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3060\u30021\u7dda\u5f0f\u56de\u8def\u56f3\u306f\u300c\u30b3\u30f3\u30d1\u30af\u30c8\u300d\u3068\u3044\u3046\u4e00\u822c\u7684\u306a\u30e9\u30d9\u30eb\u3067\u306f\u306a\u304f\u3001\u305d\u306e\u5883\u754c\u3092\u6c7a\u3081\u308b\u3082\u306e\u3067\u3042\u308b\u3002.<\/p>\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306e\u4fdd\u8b77\u9023\u643a<\/h2>\n<p>\u30b3\u30aa\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3\u3068\u306f\u3001\u969c\u5bb3\u306e\u3042\u308b\u7b87\u6240\u306b\u8fd1\u3044\u88c5\u7f6e\u304c\u307e\u305a\u969c\u5bb3\u3092\u89e3\u6d88\u3057\u3001\u305d\u306e\u4e0a\u6d41\u306b\u3042\u308b\u88c5\u7f6e\u306f\u9589\u3058\u305f\u72b6\u614b\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u5404\u4fdd\u8b77\u5c64\u306e\u6642\u9593\u96fb\u6d41\u66f2\u7dda\u3001\u901a\u904e\u30a8\u30cd\u30eb\u30ae\u30fc\u3001\u77ed\u6642\u9593\u8010\u5727\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u53ef\u80fd\u306a\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u30d5\u30a7\u30fc\u30c0\u30fc\u3068\u4e0b\u6d41\u306eMCB\u3092\u5206\u96e2\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u8abf\u6574\u306b\u3088\u3063\u3066\u5341\u5206\u306a\u906e\u65ad\u5bb9\u91cf\u307e\u305f\u306f\u5c0f\u578b\u5c0e\u7dda\u306e\u4e0d\u8db3\u3092\u88dc\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n<p>\u7a3c\u50cd\u958b\u59cb\u306f\u4fe1\u983c\u6027\u306e\u4e00\u90e8\u3067\u3059\u3002\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u8b58\u5225\u3001\u30c8\u30ea\u30c3\u30d7\u30c0\u30a4\u30e4\u30eb\u4f4d\u7f6e\u3001\u8a08\u7b97\u3055\u308c\u305f\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u5024\u3001\u30c8\u30eb\u30af\u5024\u3001\u304a\u3088\u3073\u8a66\u9a13\u6a5f\u5668\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306e\u53d6\u6271\u8aac\u660e\u66f8\u3067\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u6821\u6b63\u6e08\u307f\u4e00\u6b21\u307e\u305f\u306f\u4e8c\u6b21\u6ce8\u5165\u8a66\u9a13\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e3b\u8981\u306a\u8a2d\u5b9a\u5909\u66f4\u5f8c\u3001\u3053\u306e\u8a66\u9a13\u3092\u7e70\u308a\u8fd4\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u8a18\u9332\u306f\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u77ed\u7e2e\u3057\u3001IEC 60364\u691c\u8a3c\u6163\u884c\u306b\u57fa\u3065\u3044\u305f\u79fb\u7ba1\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6c7a\u5b9a\u6b21\u5143<\/th>\n<th>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u30a2\u30d7\u30ed\u30fc\u30c1<\/th>\n<th>\u6f5c\u5728\u7684\u306a\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5<\/th>\n<th>\u8acb\u6c42\u3059\u308b\u8a3c\u62e0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30d1\u30cd\u30eb\u30b9\u30da\u30fc\u30b9<\/td>\n<td>\u3088\u308a\u5c0f\u3055\u306a\u8a2d\u7f6e\u9762\u7a4d\u3068\u77ed\u7e2e\u3055\u308c\u305f\u904b\u884c\u8ddd\u96e2<\/td>\n<td>\u30b1\u30fc\u30d6\u30eb\u306e\u66f2\u3052\u3084\u71b1\u653e\u6563\u306e\u4f59\u5730\u304c\u5c11\u306a\u3044<\/td>\n<td>\u6982\u8981\u56f3\u3001\u7aef\u672b\u914d\u7f6e\u56f3\u3001\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u30c7\u30fc\u30bf<\/td>\n<\/tr>\n<tr>\n<td>\u4fdd\u8b77<\/td>\n<td>1\u3064\u306e\u7b50\u4f53\u306b\u642d\u8f09\u3055\u308c\u305f\u71b1\u78c1\u6c17\u5f0f\u307e\u305f\u306f\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7<\/td>\n<td>\u8a2d\u5b9a\u306f\u9078\u629e\u3055\u308c\u305f\u30d5\u30ec\u30fc\u30e0\u306b\u3088\u3063\u3066\u5236\u9650\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<td>\u6642\u9593\u96fb\u6d41\u66f2\u7dda\u3068\u8a2d\u5b9a\u7bc4\u56f2<\/td>\n<\/tr>\n<tr>\n<td>\u6545\u969c\u6642\u306e\u7fa9\u52d9<\/td>\n<td>\u30c7\u30af\u30e9\u30fc\u30c9\u30fb\u30a2\u30a4<sub>cu<\/sub>\/I<sub>cs<\/sub> \u7533\u8acb\u7528<\/td>\n<td>\u3088\u308a\u9ad8\u3044\u30d5\u30a9\u30eb\u30c8\u30ec\u30d9\u30eb\u3067\u306f\u3001\u3088\u308a\u5927\u304d\u306a\u30d5\u30ec\u30fc\u30e0\u307e\u305f\u306f\u30c6\u30b9\u30c8\u6e08\u307f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<td>\u30e2\u30c7\u30eb\u30ec\u30d9\u30eb\u306e\u30c6\u30b9\u30c8\u30ec\u30dd\u30fc\u30c8\u3068\u8abf\u6574\u8868<\/td>\n<\/tr>\n<tr>\n<td>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/td>\n<td>\u8868\u793a\u53ef\u80fd\u306a\u30cf\u30f3\u30c9\u30eb\u3068\u4ed8\u5c5e\u54c1\u3092\u5099\u3048\u305f\u518d\u8a2d\u5b9a\u53ef\u80fd\u306a\u30c7\u30d0\u30a4\u30b9<\/td>\n<td>\u30c8\u30eb\u30af\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u304b\u3001\u307b\u3053\u308a\u304c\u4ed8\u7740\u3057\u3066\u3044\u308b\u3068\u63a5\u70b9\u62b5\u6297\u304c\u9ad8\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<td>\u8a2d\u7f6e\u30ac\u30a4\u30c9\u3001\u30c8\u30eb\u30af\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3001\u691c\u67fb\u8a08\u753b<\/td>\n<\/tr>\n<tr>\n<td>\u7dcf\u8cbb\u7528<\/td>\n<td>\u30b5\u30a4\u30ba\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u9285\u306e\u91cf\u3092\u6e1b\u3089\u3057\u3001\u7b50\u4f53\u30b5\u30a4\u30ba\u3068\u5de5\u6570\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/td>\n<td>\u30c7\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u9078\u629e\u6027\u3092\u898b\u9003\u3059\u3068\u518d\u8a2d\u8a08\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u306a\u308b\u3002<\/td>\n<td>\u627f\u8a8d\u3055\u308c\u305f\u8a08\u7b97\u3068\u3001\u51fa\u767a\u6642\u306e\u7a3c\u50cd\u8a18\u9332<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u9078\u629e\u6027\u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u4fdd\u8b77\u3092\u5206\u96e2\u3059\u308b<\/h3>\n<p>\u9078\u629e\u6027\u306f\u906e\u65ad\u3092\u610f\u56f3\u3055\u308c\u305f\u4fdd\u8b77\u5c64\u306b\u9650\u5b9a\u3059\u308b\uff1ba <strong>\u30c6\u30b9\u30c8\u3057\u305f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u7d44\u307f\u5408\u308f\u305b<\/strong> \u7279\u5b9a\u306e\u77ed\u7d61\u8ca0\u8377\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u7570\u306a\u308b\u4e3b\u5f35\u3067\u3059\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u4fdd\u8b77\u7528\u306b\u627f\u8a8d\u3055\u308c\u305f\u7d44\u307f\u5408\u308f\u305b\u306f\u3001\u540c\u3058\u6545\u969c\u30ec\u30d9\u30eb\u307e\u3067\u81ea\u52d5\u7684\u306b\u9078\u629e\u7684\u306b\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6b63\u78ba\u306a\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u304a\u3088\u3073\u30c0\u30a6\u30f3\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3001\u96fb\u5727\u3001\u7814\u7a76\u9650\u754c\u3001\u304a\u3088\u3073\u30e1\u30fc\u30ab\u30fc\u306e\u6539\u8a02\u60c5\u5831\u3092\u8a18\u9332\u3057\u3066\u304a\u304d\u3001\u5f8c\u8005\u306e\u5909\u66f4\u306b\u3088\u308a\u8a08\u7b97\u304c\u81ea\u52d5\u7684\u306b\u7121\u52b9\u306b\u306a\u308b\u3053\u3068\u3092\u9632\u3050\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306e\u7528\u9014<\/h2>\n<p>\u9069\u7528\u6761\u4ef6\u306b\u3088\u3063\u3066\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u30d5\u30ec\u30fc\u30e0\u304c\u512a\u4f4d\u306b\u306a\u308b\u304b\u3069\u3046\u304b\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306f\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30ab\u30c6\u30b4\u30ea\u30fc\u3067\u306f\u306a\u304f\u56de\u8def\u306b\u6c7a\u5b9a\u3092\u56fa\u5b9a\u3057\u307e\u3059\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7533\u8acb<\/th>\n<th>\u5178\u578b\u7684\u306a\u8a2d\u8a08\u4e0a\u306e\u554f\u984c<\/th>\n<th>\u4fbf\u5229\u306aMCCB\u6a5f\u80fd<\/th>\n<th>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30c1\u30a7\u30c3\u30af<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>OEM\u6a5f\u68b0\u30d1\u30cd\u30eb<\/td>\n<td>\u30e2\u30fc\u30bf\u30fc\u306e\u904e\u96fb\u6d41\u306f\u969c\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3059\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/td>\n<td>\u8abf\u6574\u53ef\u80fd\u306a\u77ac\u6642\u8a2d\u5b9a\u307e\u305f\u306f\u77ed\u6642\u9593\u8a2d\u5b9a\u304c\u3042\u308b\u5834\u5408<\/td>\n<td>\u30e2\u30fc\u30bf\u30fc\u59cb\u52d5\u66f2\u7dda\u3001\u5236\u5fa1\u96fb\u5727\u3001\u7b50\u4f53\u6e29\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>\u5546\u696d\u7528\u914d\u96fb\u76e4<\/td>\n<td>\u4e0b\u6d41\u306e\u969c\u5bb3\u304c\u5c40\u6240\u7684\u306a\u3082\u306e\u306b\u3068\u3069\u307e\u308b\u3053\u3068\u306f\u53ef\u80fd\u304b\uff1f<\/td>\n<td>\u8abf\u6574\u6027\u306b\u512a\u308c\u305f\u65c5\u884c\u66f2\u7dda\u3068\u88dc\u52a9\u30b3\u30f3\u30bf\u30af\u30c8<\/td>\n<td>\u9078\u629e\u6027\u8a66\u9a13\u304a\u3088\u3073\u73fe\u5730\u8a2d\u7f6e\u30b3\u30fc\u30c9<\/td>\n<\/tr>\n<tr>\n<td>\u5149\u96fb\u5f0f\u307e\u305f\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u5f0f\u7d66\u96fb\u88c5\u7f6e<\/td>\n<td>\u3053\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u76f4\u6d41\u96fb\u5727\u3068\u6975\u6027\u306b\u3064\u3044\u3066\u30c6\u30b9\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n<td>DC\u306e\u5229\u7528\u72b6\u6cc1\u3001\u30dd\u30fc\u30eb\u30fb\u30b7\u30ea\u30fc\u30ba\u306e\u914d\u7f6e\u3001DC I<sub>cu<\/sub><\/td>\n<td>IEC 60947-2\u306e\u30c7\u30fc\u30bf\u3001\u30a2\u30ec\u30a4\u307e\u305f\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u6545\u969c\u8abf\u67fb<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30ed\u30bb\u30b9\u6539\u4fee<\/td>\n<td>\u4eca\u5f8c\u306e\u8ca0\u8377\u5897\u5927\u306f\u5bfe\u5fdc\u3067\u304d\u308b\u304b\uff1f<\/td>\n<td>\u627f\u8a8d\u3055\u308c\u305f\u30d5\u30ec\u30fc\u30e0\u5185\u3067\u9577\u6642\u9593\u306e\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u8abf\u6574\u53ef\u80fd<\/td>\n<td>\u30b1\u30fc\u30d6\u30eb\u306e\u5bb9\u91cf\u3001\u71b1\u3001\u304a\u3088\u3073\u6545\u969c\u30ec\u30d9\u30eb\u3092\u62e1\u5f35\u5f8c\u306b\u518d\u78ba\u8a8d\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure class=\"article-image\" style=\"margin:1em 0;\">\n<img decoding=\"async\" alt=\"MCCB\u306e\u6b63\u9762\u56f3\uff08\u8a55\u4fa1\u304a\u3088\u3073\u7aef\u5b50\u78ba\u8a8d\u3092\u4f34\u3046\uff09\" loading=\"lazy\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/wlm6rt-800a-3300-3p-wlm6rt-series-molded-case-circuit-breaker-breaker-40-gallery-17.webp\" style=\"display:block;width:50%;max-width:50%;height:auto;margin:0 auto;\"\/><figcaption>MCCB\u306e\u6b63\u9762\u56f3\u3002\u8a55\u4fa1\u304a\u3088\u3073\u7aef\u5b50\u78ba\u8a8d\u3082\u4f75\u305b\u3066\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/figcaption><\/figure>\n<p>\u8abf\u9054\u306b\u3064\u3044\u3066\u306f\u3001\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <strong>\u7dcf\u8a2d\u7f6e\u8cbb\u7528<\/strong> \u540c\u3058\u7bc4\u56f2\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\uff1a\u30d6\u30ec\u30fc\u30ab\u3001\u7aef\u5b50\u3001\u7b50\u4f53\u3001\u5c0e\u4f53\u914d\u7dda\u3001\u6280\u8853\u3001\u8a66\u9a13\u3001\u4fdd\u5b88\u30a2\u30af\u30bb\u30b9\u3002\u6e29\u5ea6\u4e0a\u6607\u304a\u3088\u3073\u914d\u7dda\u914d\u7f6e\u304c\u78ba\u8a8d\u3055\u308c\u308b\u307e\u3067\u3001\u5c0f\u578b\u306e\u7b50\u4f53\u304b\u3089\u7bc0\u7d04\u3092\u8acb\u6c42\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u96fb\u5b50\u5f0f\u30c8\u30ea\u30c3\u30d7\u6a5f\u80fd\u304c\u63d0\u6848\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3001\u901a\u4fe1\u3001\u8a66\u9a13\u306b\u5fc5\u8981\u306a\u88dc\u52a9\u96fb\u6e90\u304b\u3089\u72ec\u7acb\u3057\u305f\u4fdd\u8b77\u65b9\u5f0f\u3068\u533a\u5225\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u96fb\u6e90\u8981\u4ef6\u306f\u30e2\u30c7\u30eb\u3054\u3068\u306b\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306e\u9069\u5408\u8981\u4ef6<\/h2>\n<p>IEC 60947-2\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u88c5\u7f6e\u304a\u3088\u3073\u5236\u5fa1\u88c5\u7f6e\u3067\u4f7f\u7528\u3055\u308c\u308b\u4f4e\u96fb\u5727\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u3092\u5bfe\u8c61\u3068\u3057\u3001\u6027\u80fd\u7279\u6027\u304a\u3088\u3073\u30bf\u30a4\u30d7\u8a66\u9a13\u306b\u95a2\u3059\u308b\u898f\u5b9a\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002IEC 60947-1\u306f\u4e00\u822c\u7684\u306a\u5b9a\u7fa9\u3068\u4e00\u822c\u7684\u306a\u898f\u5247\u3092\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u8a2d\u7f6e\u8a2d\u8a08\u306b\u3064\u3044\u3066\u306f\u3001IEC 60364-4-43\u304c\u904e\u96fb\u6d41\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u306b\u95a2\u3059\u308b\u898f\u5b9a\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002\u7c73\u56fd\u3067\u306f\u3001UL 489\u304c\u9069\u7528\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/w9-group.com\/ja\/blog\/mccb-moulded-case-circuit-breaker\/\">\u6210\u5f62\u30b1\u30fc\u30b9\u5f0f\u906e\u65ad\u5668<\/a>NFPA 70\uff08\u56fd\u5bb6\u96fb\u6c17\u30b3\u30fc\u30c9\uff09\u306f\u8a2d\u7f6e\u306b\u95a2\u3059\u308b\u898f\u5b9a\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306f\u7570\u306a\u308b\u9069\u5408\u57fa\u6e96\u3067\u3059\u3002.<\/p>\n<p>\u6a19\u6e96\u7684\u306a\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306f\u3001\u4e00\u822c\u7684\u306a\u8a8d\u8a3c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6b63\u78ba\u306a\u30d5\u30ec\u30fc\u30e0\u3001\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u3001\u304a\u3088\u3073\u4ed8\u5c5e\u54c1\u306e\u7d44\u307f\u5408\u308f\u305b\u3001\u8a72\u5f53\u3059\u308b\u30a8\u30c7\u30a3\u30b7\u30e7\u30f3\u3001\u5ba3\u8a00\u66f8\u3001\u8a66\u9a13\u5831\u544a\u66f8\u3001\u6e29\u5ea6\u4e0a\u6607\u30c7\u30fc\u30bf\u3001\u914d\u7dda\u56f3\u306a\u3069\u3092\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u4e3b\u5f35\u306f\u691c\u67fb\u306e\u9045\u5ef6\u3001\u30d1\u30cd\u30eb\u306e\u8a18\u8f09\u5185\u5bb9\u306e\u7121\u52b9\u5316\u3001\u3042\u308b\u3044\u306f\u9ad8\u984d\u306a\u73fe\u5834\u3067\u306e\u4ea4\u63db\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u76ee\u7684\u5730\u5e02\u5834\u3001\u6700\u7d42\u7528\u9014\u3001\u304a\u3088\u3073\u7ba1\u8f44\u6a29\u3092\u6709\u3059\u308b\u5f53\u5c40\u304c\u3069\u306e\u6587\u66f8\u304c\u5fc5\u8981\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002.<\/p>\n<figure class=\"article-image\" style=\"margin:1em 0;\">\n<img decoding=\"async\" alt=\"\u59d4\u4efb\u696d\u52d9\u8aac\u660e\u306e\u969b\u306b\u6dfb\u4ed8\u3055\u308c\u308b\u8abf\u6574\u53ef\u80fd\u306aMCCB\u306e\u53c2\u8003\u753b\u50cf\" loading=\"lazy\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/adjustable-mccb-csdm7r-800l-3300-3p-csdm7r-series-molded-case-circuit-br-gallery-01.webp\" style=\"display:block;width:50%;max-width:50%;height:auto;margin:0 auto;\"\/><figcaption>\u59d4\u4efb\u5f0f\u8aac\u660e\u4f1a\u306b\u4ed8\u5c5e\u3059\u308bMCCB\u306e\u8abf\u6574\u7528\u57fa\u6e96\u753b\u50cf\u3002.<\/figcaption><\/figure>\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u8abf\u9054\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<ol>\n<li>1\u884c\u56f3\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3001\u30ed\u30fc\u30c9\u30fb\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3001\u30b3\u30f3\u30c0\u30af\u30bf\u30fc\u30b5\u30a4\u30ba\u3001\u5468\u56f2\u6761\u4ef6\u3001\u304a\u3088\u3073\u5c06\u6765\u306e\u6545\u969c\u96fb\u6d41\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002.<\/li>\n<li>AC\u307e\u305f\u306fDC\u306e\u30e2\u30fc\u30c9\u3001\u30dd\u30fc\u30eb\u6570\u3001U<sub>e<\/sub>, I<sub>n<\/sub>, I<sub>cu<\/sub>\/I<sub>cs<\/sub> 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Group\u306fMCCB\u304a\u3088\u3073\u305d\u306e\u4ed6\u306e\u4f4e\u96fb\u5727\u4fdd\u8b77\u88fd\u54c1\u3092\u30ea\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/w9-group.com\/ja\/product\/wlm6rt-400a-3300-3p-wlm6rt-series-400vac-thermal-magnetic-type-moulded-case-circuit-breaker-400v-690v-mccb-400a-3-poles-adjustable-mccb\/\">WLM6RT MCCB\u88fd\u54c1\u30da\u30fc\u30b8<\/a> \u63d0\u4f9b\u3055\u308c\u305f\u69cb\u6210\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306e\u51fa\u767a\u70b9\u3067\u3059\u3002\u30d1\u30cd\u30eb\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u307e\u305f\u306f\u4ea4\u63db\u3092\u627f\u8a8d\u3059\u308b\u524d\u306b\u3001\u305d\u306e\u73fe\u5728\u306e\u56f3\u9762\u3001\u8d70\u884c\u66f2\u7dda\u3001\u5b9a\u683c\u8868\u3001\u304a\u3088\u3073\u8a2d\u7f6e\u6761\u4ef6\u3092\u8981\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<section id=\"faq\">\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3053\u308c\u306f\u6bd4\u8f03\u7684\u5c0f\u578b\u306e\u7b50\u4f53\u3067\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u304a\u3088\u3073\u904e\u96fb\u6d41\u906e\u65ad\u3092\u884c\u3046\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u305f\u56de\u8def\u906e\u65ad\u5668\u3067\u3059\u3002\u300c\u30b3\u30f3\u30d1\u30af\u30c8\u300d\u3068\u306f\u3001\u4e00\u822c\u7684\u306a\u96fb\u6d41\u307e\u305f\u306f\u6545\u969c\u5b9a\u683c\u3067\u306f\u306a\u304f\u3001\u7269\u7406\u7684\u306a\u5f62\u5f0f\u3092\u6307\u3057\u307e\u3059\u3002\u30e2\u30c7\u30eb\u306e\u6307\u5b9a\u3055\u308c\u305f\u5b9a\u683c\u304a\u3088\u3073\u8a2d\u7f6e\u6642\u306e\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h3>\u30b3\u30f3\u30d1\u30af\u30c8\u306aMCCB\u306f\u7523\u696d\u7528\u9001\u96fb\u76e4\u306b\u4fe1\u983c\u6027\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u96fb\u5727\u3001\u8ca0\u8377\u3001\u6545\u969c\u52d5\u4f5c\u3001\u6e29\u5ea6\u3001\u304a\u3088\u3073\u8abf\u6574\u304c\u30e1\u30fc\u30ab\u30fc\u306e\u30c6\u30b9\u30c8\u306b\u6e96\u62e0\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u5834\u5408\u306b\u9650\u308a\u3001\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u4fe1\u983c\u6027\u304c\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u7b50\u4f53\u306b\u71b1\u7684\u8ca0\u8377\u304c\u904e\u5ea6\u306b\u52a0\u308f\u308b\u5834\u5408\u3084\u30d6\u30ec\u30fc\u30ab\u306eI<sub>cu<\/sub> 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MCCB\u3092DC\u56de\u8def\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u6b63\u78ba\u306a\u30c7\u30d0\u30a4\u30b9\u304cDC\u96fb\u5727\u3001\u6975\u6027\u3001\u304a\u3088\u3073\u6975\u914d\u7f6e\u306b\u3064\u3044\u3066\u30c6\u30b9\u30c8\u3055\u308c\u3001\u30de\u30fc\u30af\u3055\u308c\u305f\u5834\u5408\u306b\u9650\u308a\u307e\u3059\u3002DC\u30a2\u30fc\u30af\u306f\u3001AC\u30a2\u30fc\u30af\u3068\u540c\u3058\u81ea\u7136\u306a\u30bc\u30ed\u30af\u30ed\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u6301\u3063\u3066\u3044\u307e\u305b\u3093\u3002AC\u30ab\u30bf\u30ed\u30b0\u306e\u9805\u3067\u306f\u306a\u304f\u3001\u30e1\u30fc\u30ab\u30fc\u306eDC\u5b9a\u683c\u8868\u3068\u914d\u7dda\u56f3\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h3>\u8cfc\u5165\u8005\u306f\u3069\u306e\u3088\u3046\u306a\u66f8\u985e\u3092\u8981\u6c42\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3001\u6982\u8981\u56f3\u3001\u7aef\u5b50\u56f3\u3001\u884c\u7a0b\u66f2\u7dda\u3001I<sub>cu<\/sub>\/I<sub>cs<\/sub> \u8a3c\u62e0\u3001\u6e29\u5ea6\u964d\u4e0b\u60c5\u5831\u3001\u4ed8\u5c5e\u54c1\u56f3\u3001\u304a\u3088\u3073\u8a72\u5f53\u3059\u308b\u5ba3\u8a00\u307e\u305f\u306f\u8a3c\u660e\u66f8\u3002\u30e2\u30c7\u30eb\u756a\u53f7\u3068\u6a19\u6e96\u7248\u304c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6700\u7d42\u8a2d\u5b9a\u3068\u30c6\u30b9\u30c8\u8a18\u9332\u3092\u30d1\u30cd\u30eb\u30d5\u30a1\u30a4\u30eb\u306b\u4fdd\u5b58\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<\/section>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<ol>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/66277\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60947-2:2024 \u2014 \u56de\u8def\u65ad\u958b\u5668\u88fd\u54c1\u306e\u7bc4\u56f2<\/a>. \u516c\u7684\u7bc4\u56f2\u304a\u3088\u3073\u30ac\u30a4\u30c0\u30f3\u30b9\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f 2026-10-19.<\/li>\n<li><a href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.303\" rel=\"nofollow noopener\" target=\"_blank\">OSHA 1910.303 \u2014 \u914d\u7dda\u30b9\u30da\u30fc\u30b9\u3001\u51b7\u5374\u3001\u906e\u65ad\u306e\u8a55\u4fa1<\/a>. \u516c\u7684\u7bc4\u56f2\u304a\u3088\u3073\u30ac\u30a4\u30c0\u30f3\u30b9\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f 2026-10-19.<\/li>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/download\/document\/0600IB1201\/\" rel=\"nofollow noopener\" target=\"_blank\">\u30b7\u30e5\u30ca\u30a4\u30c0\u30fc\u30a8\u30ec\u30af\u30c8\u30ea\u30c3\u30af 0600IB1201 \u2014 \u71b1\u78c1\u6027\u8a66\u9a13\u304a\u3088\u3073\u96fb\u5b50\u30c8\u30ea\u30c3\u30d7\u30d5\u30a3\u30fc\u30eb\u30c9\u8a66\u9a13<\/a>. \u516c\u7684\u7bc4\u56f2\u304a\u3088\u3073\u30ac\u30a4\u30c0\u30f3\u30b9\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f 2026-10-19.<\/li>\n<\/ol>\n<p>\u9055\u3044\u306f\u68da\u306b\u3042\u308b\u6700\u5c0f\u306e\u30d5\u30ec\u30fc\u30e0\u3067\u306f\u306a\u304f\u3001\u8a55\u4fa1\u3001\u30b3\u30f3\u30c0\u30af\u30bf\u30fc\u3001\u304a\u3088\u3073\u9023\u643a\u304c\u4e00\u81f4\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002W9 Group\u306e\u4f4e\u96fb\u5727\u4fdd\u8b77\u88fd\u54c1\u3092\u30ec\u30d3\u30e5\u30fc\u3057\u3001MCCB\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3055\u308c\u305f\u69cb\u6210\u30681\u30e9\u30a4\u30f3\u56f3\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/w9-group.com\/ja\/contact-us\/\">W9\u30c1\u30fc\u30e0\u3078\u3054\u9023\u7d61\u304f\u3060\u3055\u3044<\/a> \u8abf\u9054\u524d\u306b\u30ed\u30fc\u30c9\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3068\u76ee\u7684\u5730\u304c\u6a19\u6e96\u5316\u3055\u308c\u308b\u3002.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>IEC 60947-2\u3001\u6545\u969c\u8abf\u67fb\u3001\u8abf\u6574\u3001\u304a\u3088\u3073\u6587\u66f8\u5316\u3055\u308c\u305f\u8a66\u904b\u8ee2\u3092\u4f7f\u7528\u3057\u3066\u3001\u4f4e\u96fb\u5727\u30b7\u30b9\u30c6\u30e0\u5411\u3051\u306b\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044MCCB\u3092\u3069\u306e\u3088\u3046\u306b\u6307\u5b9a\u3059\u308b\u304b\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002.<\/p>","protected":false},"author":1,"featured_media":3719,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"acf":[],"_links":{"self":[{"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/posts\/3540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/comments?post=3540"}],"version-history":[{"count":3,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/posts\/3540\/revisions"}],"predecessor-version":[{"id":4602,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/posts\/3540\/revisions\/4602"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/media\/3719"}],"wp:attachment":[{"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/media?parent=3540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/categories?post=3540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/tags?post=3540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}