{"id":3409,"date":"2026-03-24T09:00:00","date_gmt":"2026-03-24T01:00:00","guid":{"rendered":"https:\/\/eqsvq3fzct.wpdns.site\/blog\/advanced-protection-of-800v-mccb-electronic-jcr3hm-rcd-with-built-in-lsig-trip-unit\/"},"modified":"2026-10-10T10:42:13","modified_gmt":"2026-10-10T02:42:13","slug":"800v-mccb-%e9%9b%bb%e5%ad%90%e5%bc%8f-jcr3hm-rcd-%e3%81%ae%e9%ab%98%e5%ba%a6%e3%81%aa%e4%bf%9d%e8%ad%b7%e6%a9%9f%e8%83%bd%e3%80%81%e5%86%85%e8%94%b5%e3%81%ae-lsig-%e3%83%88%e3%83%aa%e3%83%83%e3%83%97","status":"publish","type":"post","link":"https:\/\/w9-group.com\/ja\/blog\/advanced-protection-of-800v-mccb-electronic-jcr3hm-rcd-with-built-in-lsig-trip-unit\/","title":{"rendered":"800V MCCB \u96fb\u5b50\u5f0f JCR3HM RCD \u306e\u9ad8\u5ea6\u306a\u4fdd\u8b77\u6a5f\u80fd\u3001\u5185\u8535 LSIG \u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8"},"content":{"rendered":"

<\/p>\n

\u73fe\u4ee3\u306e\u6025\u901f\u306a\u4e16\u754c\u3067\u306f\u3001\u96fb\u6c17\u5b89\u5168\u6027\u304c\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u7523\u696d\u7528\u3001\u5546\u696d\u7528\u3001\u5bb6\u5ead\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u7279\u306b\u91cd\u8981\u3067\u3059\u3002JCR3HM\u6b8b\u7559\u96fb\u6d41\u691c\u51fa\u5668\uff08RCD\uff09\u306f\u3001\u63a5\u5730\u6545\u969c\u3001\u6f0f\u96fb\u96fb\u6d41\u3001\u96fb\u5727\u5909\u52d5\u306b\u5bfe\u3059\u308b\u9ad8\u5ea6\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3059\u308b\u753b\u671f\u7684\u306a\u88fd\u54c1\u3067\u3059\u3002 JCR3HM RCD<\/a><\/span> 800V\u306eMCCB\u96fb\u5b50\u5185\u8535LSIG\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306b\u3088\u308a\u3001\u96fb\u6c17\u5b89\u5168\u6027\u3068\u4fe1\u983c\u6027\u306b\u65b0\u305f\u306a\u57fa\u6e96\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002.<\/p>\n

\u8cfc\u5165\u8005\u306e\u6c7a\u5b9a\uff1a<\/strong> Treat LSIG and residual-current protection as separate specification lines. Long-time, short-time and instantaneous elements address overload and overcurrent; the ground-fault element operates according to its own sensing arrangement and settings. A G label is not automatically equivalent to residual-current protection.<\/strong> Request the exact function matrix, sensor arrangement, setting ranges, tolerances and test method under the offered IEC 60947-2:2024<\/a> \u8a2d\u5b9a\u3002.<\/p>\n<\/p>\n

\u305d\u306e\u4e3b\u306a\u5229\u70b9\u306e\u3072\u3068\u3064\u306f JCR3HM RCD<\/a><\/span> JCR3HM RCD\u306b\u306f\u3001\u63a5\u5730\u6545\u969c\u304a\u3088\u3073\u6f0f\u96fb\u96fb\u6d41\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u81f4\u547d\u7684\u306a\u96fb\u6c17\u30b7\u30e7\u30c3\u30af\u306e\u9632\u6b62\u3068\u96fb\u6c17\u706b\u707d\u306e\u30ea\u30b9\u30af\u306e\u8efd\u6e1b\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002JCR3HM RCD\u306b\u7d44\u307f\u8fbc\u307e\u308c\u305f\u9ad8\u5ea6\u306a\u6280\u8853\u306b\u3088\u308a\u3001\u5b9a\u683c\u611f\u5ea6\u304c\u8d85\u904e\u3055\u308c\u305f\u969b\u306b\u56de\u8def\u304c\u81ea\u52d5\u7684\u306b\u5207\u65ad\u3055\u308c\u308b\u305f\u3081\u3001\u3055\u3089\u306a\u308b\u5b89\u5168\u3068\u4fdd\u8b77\u304c\u78ba\u4fdd\u3055\u308c\u307e\u3059\u3002.<\/p>\n

\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5883\u754c\uff1a<\/strong> \u4e0d\u53ef\u6b20\u306a\u6a5f\u80fd\u3001\u5916\u90e8\u30bb\u30f3\u30b5\u30fc\u307e\u305f\u306f\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u5fc5\u8981\u306a\u6a5f\u80fd\u3001\u304a\u3088\u3073\u6587\u66f8\u5316\u3055\u308c\u305f\u4e2d\u6027\u5316\u304a\u3088\u3073\u63a5\u5730\u914d\u7f6e\u304c\u63d0\u6848\u3055\u308c\u305f\u8a2d\u8a08\u306b\u5bfe\u5fdc\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a4\u30f3\u30d0\u30fc\u30bf\u30fc\u306e\u6f0f\u96fb\u3001\u4e26\u5217\u5c0e\u7dda\u3001\u8907\u6570\u306e\u30bd\u30fc\u30b9\u3001\u304a\u3088\u3073\u6b8b\u7559\u76f4\u6d41\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u4fdd\u8b77\u8a2d\u8a08\u3092\u5909\u66f4\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u96fb\u6c17\u30b7\u30e7\u30c3\u30af\u4fdd\u8b77\u3001\u706b\u707d\u9632\u6b62\u3001\u307e\u305f\u306f\u30b3\u30f3\u30d0\u30fc\u30bf\u751f\u6210\u6ce2\u5f62\u304c\u8981\u4ef6\u306e\u4e00\u90e8\u3067\u3042\u308b\u5834\u5408\u306f\u3001\u4fdd\u8b77\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u76f8\u8ac7\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<\/p>\n

\u3055\u3089\u306b\u3001 JCR3HM RCD<\/a><\/span> \u30b1\u30fc\u30d6\u30eb\u63a5\u7d9a\u304a\u3088\u3073\u30d0\u30b9\u30d0\u30fc\u63a5\u7d9a\u7528\u306e\u30c7\u30e5\u30a2\u30eb\u30bf\u30fc\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3001\u591a\u69d8\u306a\u8a2d\u7f6e\u8981\u4ef6\u306b\u5bfe\u5fdc\u3057\u3001\u7528\u9014\u306e\u5e83\u3044\u8a2d\u8a08\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u67d4\u8edf\u6027\u306b\u3088\u308a\u3001RCD\u306f\u3055\u307e\u3056\u307e\u306a\u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u306b\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u7d71\u5408\u3055\u308c\u3001\u7570\u306a\u308b\u74b0\u5883\u3067\u306e\u4f7f\u3044\u3084\u3059\u3055\u3068\u5b9f\u7528\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002.<\/p>\n<\/p>\n

\u305d\u306e\u4e3b\u306a\u5b89\u5168\u6a5f\u80fd\u306b\u52a0\u3048\u3001 JCR3HM RCD<\/a><\/span> \u307e\u305f\u3001\u904e\u6e21\u96fb\u5727\u30ec\u30d9\u30eb\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u6a5f\u80fd\u3082\u5185\u8535\u3057\u3066\u304a\u308a\u3001\u96fb\u5727\u5909\u52d5\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306f\u3001\u654f\u611f\u306a\u96fb\u6c17\u6a5f\u5668\u3092\u4fdd\u8b77\u3057\u3001\u96fb\u6e90\u306e\u5b89\u5b9a\u6027\u3068\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n<\/p>\n

\u305d\u306e\u6a5f\u80fd\u306f JCR3HM RCD<\/a><\/span> \u3055\u3089\u306b\u3001800V MCCB \u96fb\u5b50\u5185\u8535LSIG\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306e\u7d71\u5408\u306b\u3088\u308a\u5f37\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u9ad8\u5ea6\u306a\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306f\u6b63\u78ba\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u3001RCD\u304c\u96fb\u6c17\u7684\u5371\u967a\u306b\u5bfe\u3059\u308b\u52b9\u679c\u7684\u306a\u5bfe\u5fdc\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u96fb\u5b50\u69cb\u9020\u306b\u3088\u308a\u3001MCCB\u306f\u512a\u308c\u305f\u6027\u80fd\u3068\u8010\u4e45\u6027\u3092\u767a\u63ee\u3057\u3001\u53b3\u3057\u3044\u7523\u696d\u74b0\u5883\u3084\u5546\u696d\u74b0\u5883\u306b\u6700\u9069\u3067\u3059\u3002.<\/p>\n<\/p>\n

The JCR3HM RCD<\/a><\/span> \u307e\u305f\u3001800V MCCB\u306e\u96fb\u5b50\u5185\u8535LSIG\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u96fb\u6c17\u5b89\u5168\u6280\u8853\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u9032\u6b69\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u5730\u7d61\u3001\u6f0f\u96fb\u96fb\u6d41\u3001\u96fb\u5727\u5909\u52d5\u306b\u5bfe\u3059\u308b\u5305\u62ec\u7684\u306a\u4fdd\u8b77\u6a5f\u80fd\u3092\u6709\u3057\u3066\u304a\u308a\u3001MCCB\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u306e\u9ad8\u5ea6\u306a\u6a5f\u80fd\u6027\u3068\u7d44\u307f\u5408\u308f\u3055\u308a\u3001\u73fe\u4ee3\u306e\u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u4fe1\u983c\u6027\u3068\u4e0d\u53ef\u6b20\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002JCR3HM RCD\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u5b89\u5168\u6027\u306e\u5411\u4e0a\u3001\u4fe1\u983c\u6027\u306e\u5411\u4e0a\u3001\u305d\u3057\u3066\u5b89\u5fc3\u611f\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u88fd\u54c1\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u5065\u5eb7\u3068\u96fb\u6c17\u30a4\u30f3\u30d5\u30e9\u306e\u5065\u5168\u6027\u3092\u6700\u512a\u5148\u306b\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u8a8d\u8b58\u3057\u305f\u4e0a\u3067\u6295\u8cc7\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n

\u4fdd\u6301\u3059\u3079\u304d\u8a3c\u62e0\uff1a<\/strong> \u627f\u8a8d\u30d1\u30c3\u30af\u306b\u306f\u3001\u6642\u9593\u96fb\u6d41\u66f2\u7dda\u3001\u5de6\u5074LSIG\u8a2d\u5b9a\u304a\u3088\u3073\u6b8b\u7559\u96fb\u6d41\u8a2d\u5b9a\u3001\u914d\u7dda\u56f3\u304a\u3088\u3073\u30bb\u30f3\u30b5\u30fc\u56f3\u3001\u9078\u629e\u6027\u307e\u305f\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u4fdd\u8b77\u30c6\u30fc\u30d6\u30eb\u3001\u8a66\u904b\u8ee2\u30c6\u30b9\u30c8\u8a18\u9332\u304a\u3088\u3073\u3042\u3089\u3086\u308b\u9038\u8131\u4e8b\u9805\u304c\u542b\u307e\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5b8c\u6210\u3057\u305f\u7d44\u7acb\u8a3c\u660e\u66f8\u3068\u306f\u88fd\u54c1\u9069\u5408\u6027\u306e\u95a2\u4fc2\u3092\u5206\u96e2\u3057\u3066\u304f\u3060\u3055\u3044\u3002 IEC 61439-1:2020<\/a> \u305d\u3057\u3066\u3001\u95a2\u9023\u3059\u308b\u7d44\u307f\u7acb\u3066\u90e8\u54c1\u3002.<\/p>\n

\"800v<\/p>","protected":false},"excerpt":{"rendered":"

800V JCR3HM RCD MCCB\u3092\u5099\u3048\u305f\u9ad8\u5ea6\u306a\u4fdd\u8b77\u3092\u3054\u5229\u7528\u304f\u3060\u3055\u3044\u3002\u6700\u5927\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u5185\u8535\u306eLSIG\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8\u304c\u642d\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u96fb\u6c17\u8a2d\u5099\u306b\u95a2\u3059\u308b\u30cb\u30fc\u30ba\u306b\u6700\u9069\u306a\u88fd\u54c1\u3092\u304a\u63a2\u3057\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"author":1,"featured_media":3801,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3409","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\/3409","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=3409"}],"version-history":[{"count":3,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/posts\/3409\/revisions"}],"predecessor-version":[{"id":4225,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/posts\/3409\/revisions\/4225"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/media\/3801"}],"wp:attachment":[{"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/media?parent=3409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/categories?post=3409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w9-group.com\/ja\/wp-json\/wp\/v2\/tags?post=3409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}