{"id":18343,"date":"2025-07-12T13:52:58","date_gmt":"2025-07-12T05:52:58","guid":{"rendered":"https:\/\/viox.com\/?p=18343"},"modified":"2026-03-17T23:21:20","modified_gmt":"2026-03-17T15:21:20","slug":"what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ja\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/","title":{"rendered":"MCB\u3001MCCB\u3001RCB\u3001RCD\u3001RCCB\u3001RCBO\u306e\u9055\u3044\uff1a2026\u5e74\u30ac\u30a4\u30c9"},"content":{"rendered":"<div class=\"product-intro\">\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Comparison-photo-of-MCB-MCCB-RCD-RCCB-and-RCBO-electrical-protection-devices.webp\" alt=\"Comparison photo of MCB, MCCB, RCD, RCCB, and RCBO electrical protection devices\" \/><figcaption><em>MCB\u3001MCCB\u3001RCD\u3001RCCB\u3001RCBO\u96fb\u6c17\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u6bd4\u8f03\u5199\u771f\u3002.<\/em><\/figcaption><\/figure>\n<p>\u3082\u3057\u3042\u306a\u305f\u304c\uff5e\u306e\u9055\u3044\u3092\u7406\u89e3\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u306a\u3089 <code>MCB<\/code>, <code>MCCB<\/code>, <code>RCB<\/code>, <code>RCD<\/code>, <code>RCCB<\/code>\u305d\u3057\u3066 <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code>, \u3001\u624b\u77ed\u306b\u8a00\u3046\u3068\u3053\u3046\u3067\u3059\uff1a<\/p>\n<ul>\n<li><code>MCB<\/code> \u305d\u3057\u3066 <code>MCCB<\/code> \u4e3b\u306b\uff5e\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059 <strong>\u904e\u8ca0\u8377<\/strong> \u305d\u3057\u3066 <strong>\u30b7\u30e7\u30fc\u30c8\u30b5\u30fc\u30ad\u30c3\u30c8<\/strong><\/li>\n<li><code>RCD<\/code>, <code>RCCB<\/code>\u305d\u3057\u3066 <code>RCB<\/code> \u4e3b\u306b\uff5e\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059 <strong>\u6f0f\u96fb\u4fdd\u8b77<\/strong><\/li>\n<li><code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \uff5e\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059 <strong>\u6f0f\u96fb\u4fdd\u8b77<\/strong> \u3068 <strong>\u904e\u96fb\u6d41\u4fdd\u8b77<\/strong> 1\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u306b<\/li>\n<\/ul>\n<p>\u305d\u308c\u304c\u6838\u5fc3\u7684\u306a\u9055\u3044\u3067\u3059\u3002\u6df7\u4e71\u306f\u901a\u5e38\u3001\u3053\u308c\u3089\u306e\u7528\u8a9e\u306e\u4e00\u90e8\u304c\u30c7\u30d0\u30a4\u30b9\u540d\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001\u4ed6\u306e\u7528\u8a9e\u306f\u3088\u308a\u5e83\u7bc4\u306a\u30ab\u30c6\u30b4\u30ea\u7528\u8a9e\u3067\u3042\u308a\u3001\u5e02\u5834\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u4f7f\u308f\u308c\u65b9\u3092\u3059\u308b\u305f\u3081\u306b\u8d77\u3053\u308a\u307e\u3059\u3002.<\/p>\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u306f\u3001\u305d\u306e\u9055\u3044\u3092\u660e\u78ba\u3001\u8fc5\u901f\u3001\u304b\u3064\u5b9f\u7528\u7684\u306b\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h2>\u7c21\u5358\u306a\u6bd4\u8f03\u8868<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Infographic-comparing-the-differences-between-MCB-MCCB-RCB-RCD-RCCB-and-RCBO.webp\" alt=\"Infographic comparing the differences between MCB, MCCB, RCB, RCD, RCCB, and RCBO\" \/><figcaption><em>\u3055\u307e\u3056\u307e\u306a\u56de\u8def\u30c7\u30d0\u30a4\u30b9\u306e\u4e3b\u306a\u4fdd\u8b77\u5f79\u5272\u3068\u5236\u9650\u3092\u307e\u3068\u3081\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30a4\u30f3\u30d5\u30a9\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3002.<\/em><\/figcaption><\/figure>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u671f\u9593<\/th>\n<th style=\"padding: 8px;\">\u6b63\u5f0f\u540d\u79f0<\/th>\n<th style=\"padding: 8px;\">\u4e3b\u306a\u4fdd\u8b77\u5f79\u5272<\/th>\n<th style=\"padding: 8px;\">\u305d\u308c\u81ea\u4f53\u3067\u306f\u3067\u304d\u306a\u3044\u3053\u3068<\/th>\n<th style=\"padding: 8px;\">\u4e00\u822c\u7684\u306a\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">MCB<\/td>\n<td style=\"padding: 8px;\">\u5c0f\u578b\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<\/td>\n<td style=\"padding: 8px;\">\u904e\u8ca0\u8377\u304a\u3088\u3073\u77ed\u7d61\u4fdd\u8b77<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u4fdd\u8b77\u306f\u63d0\u4f9b\u3057\u307e\u305b\u3093<\/td>\n<td style=\"padding: 8px;\">\u6700\u7d42\u56de\u8def\u3001\u5206\u5c90\u4fdd\u8b77\u3001\u4f4f\u5b85\u304a\u3088\u3073\u8efd\u5546\u696d\u7528\u30d1\u30cd\u30eb<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">MCCB<\/td>\n<td style=\"padding: 8px;\">\u30e2\u30fc\u30eb\u30c9\u30fb\u30b1\u30fc\u30b9\u30fb\u30b5\u30fc\u30ad\u30c3\u30c8\u30fb\u30d6\u30ec\u30fc\u30ab\u30fc<\/td>\n<td style=\"padding: 8px;\">\u3088\u308a\u9ad8\u3044\u5bb9\u91cf\u306e\u904e\u8ca0\u8377\u304a\u3088\u3073\u77ed\u7d61\u4fdd\u8b77<\/td>\n<td style=\"padding: 8px;\">\u305d\u308c\u81ea\u4f53\u3067\u306f\u6f0f\u96fb\u4fdd\u8b77\u306f\u63d0\u4f9b\u3057\u307e\u305b\u3093<\/td>\n<td style=\"padding: 8px;\">\u5546\u696d\u304a\u3088\u3073\u7523\u696d\u7528\u914d\u96fb\u3001\u3088\u308a\u5927\u304d\u306a\u30d5\u30a3\u30fc\u30c0\u30fc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCB<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u906e\u65ad\u5668<\/td>\n<td style=\"padding: 8px;\">\u901a\u5e38\u3001\u6f0f\u96fb\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u7528\u8a9e\u3092\u6307\u3057\u307e\u3059<\/td>\n<td style=\"padding: 8px;\">\u610f\u5473\u306f\u5e02\u5834\u3084\u88fd\u54c1\u306e\u72b6\u6cc1\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/td>\n<td style=\"padding: 8px;\">\u4e00\u90e8\u306e\u30ab\u30bf\u30ed\u30b0\u3084\u4f1a\u8a71\u3067\u5927\u307e\u304b\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCD<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u906e\u65ad\u88c5\u7f6e<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u691c\u51fa\u30c7\u30d0\u30a4\u30b9\u306e\u5e83\u7bc4\u306a\u30ab\u30c6\u30b4\u30ea<\/td>\n<td style=\"padding: 8px;\">\u5fc5\u305a\u3057\u3082\u5358\u4e00\u306e\u6b63\u78ba\u306a\u30c7\u30d0\u30a4\u30b9\u30bf\u30a4\u30d7\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/td>\n<td style=\"padding: 8px;\">\u4e00\u822c\u7684\u306a\u6f0f\u96fb\u4fdd\u8b77\u306e\u8868\u73fe<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCCB<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u906e\u65ad\u5668<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u4fdd\u8b77<\/td>\n<td style=\"padding: 8px;\">\u904e\u8ca0\u8377\u307e\u305f\u306f\u77ed\u7d61\u4fdd\u8b77\u306f\u63d0\u4f9b\u3057\u307e\u305b\u3093<\/td>\n<td style=\"padding: 8px;\">\u5225\u306e\u904e\u96fb\u6d41\u4fdd\u8b77\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306e\u611f\u96fb\u4fdd\u8b77<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/td>\n<td style=\"padding: 8px;\">\u904e\u96fb\u6d41\u4fdd\u8b77\u4ed8\u304d\u6f0f\u96fb\u906e\u65ad\u5668<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u3001\u904e\u8ca0\u8377\u3001\u304a\u3088\u3073\u77ed\u7d61\u4fdd\u8b77\u306e\u7d44\u307f\u5408\u308f\u305b<\/td>\n<td style=\"padding: 8px;\">\u6b63\u3057\u3044\u30b5\u30a4\u30b8\u30f3\u30b0\u3068\u8abf\u6574\u306e\u5fc5\u8981\u6027\u3092\u6392\u9664\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/td>\n<td style=\"padding: 8px;\">1\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u8907\u5408\u4fdd\u8b77\u304c\u5fc5\u8981\u306a\u56de\u8def<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306e\u5b9a\u7fa9\u3092\u6700\u521d\u306b\u77e5\u308a\u305f\u3044\u8aad\u8005\u306e\u305f\u3081\u306b\u3001VIOX\u306b\u306f\u3059\u3067\u306b\u4ee5\u4e0b\u306e\u30b5\u30dd\u30fc\u30c8\u30da\u30fc\u30b8\u304c\u3042\u308a\u307e\u3059 <a href=\"https:\/\/test.viox.com\/ja\/mcb-full-form-in-electrical\/\">MCB\u306e\u6b63\u5f0f\u540d\u79f0<\/a>, <a href=\"https:\/\/test.viox.com\/ja\/mccb-full-form-molded-case-circuit-breaker\/\">MCCB\u306e\u6b63\u5f0f\u540d\u79f0<\/a>\u305d\u3057\u3066 <a href=\"https:\/\/test.viox.com\/ja\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB\u30d5\u30eb\u30d5\u30a9\u30fc\u30e0<\/a>.<\/p>\n<h2>\u5404\u7528\u8a9e\u306e\u610f\u5473<\/h2>\n<p>\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u6bd4\u8f03\u3059\u308b\u524d\u306b\u3001\uff5e\u3092\u5206\u96e2\u3059\u308b\u3068\u5f79\u7acb\u3061\u307e\u3059 <strong>\u904e\u96fb\u6d41\u4fdd\u8b77\u7528\u8a9e<\/strong> \u304b\u3089 <strong>\u6f0f\u96fb\u4fdd\u8b77\u7528\u8a9e<\/strong>.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Technical-diagram-showing-how-MCB-RCCB-and-RCBO-protection-functions-differ.webp\" alt=\"Technical diagram showing how MCB, RCCB, and RCBO protection functions differ\" \/><figcaption><em>MCB\u3001RCCB\u3001\u304a\u3088\u3073RCBO\u30c7\u30d0\u30a4\u30b9\u306e\u5185\u90e8\u4fdd\u8b77\u30ed\u30b8\u30c3\u30af\u3068\u30c8\u30ea\u30c3\u30d7\u30d1\u30b9\u3092\u793a\u3059\u6280\u8853\u56f3\u3002.<\/em><\/figcaption><\/figure>\n<h3>MCB<\/h3>\n<p><code>MCB<\/code> \u30b0\u30ea\u30c3\u30c9 <strong>\u5c0f\u578b\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<\/strong>.<\/p>\n<p>\u4e3b\u306b\u4ee5\u4e0b\u306e\u56de\u8def\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u904e\u8ca0\u8377<\/li>\n<li>\u30b7\u30e7\u30fc\u30c8\u30b5\u30fc\u30ad\u30c3\u30c8<\/li>\n<\/ul>\n<p>MCB\u306f\u3001\u4f4f\u5b85\u7528\u914d\u96fb\u76e4\u3001\u6700\u7d42\u56de\u8def\u3001\u304a\u3088\u3073\u8efd\u5546\u696d\u7528\u9014\u3067\u4e00\u822c\u7684\u3067\u3059\u3002\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u3001\u5e83\u304f\u5165\u624b\u53ef\u80fd\u3067\u3042\u308a\u3001\u901a\u5e38\u3001\u5b9a\u683c\u96fb\u6d41\u3001\u30c8\u30ea\u30c3\u30d7\u30ab\u30fc\u30d6\u3001\u906e\u65ad\u5bb9\u91cf\u3001\u304a\u3088\u3073\u6975\u69cb\u6210\u306b\u3088\u3063\u3066\u9078\u629e\u3055\u308c\u307e\u3059\u3002.<\/p>\n<p>\u3088\u308a\u8a73\u7d30\u306a\u5b9a\u7fa9\u30da\u30fc\u30b8\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044 <a href=\"https:\/\/test.viox.com\/ja\/mcb-full-form-in-electrical\/\">\u96fb\u6c17\u306b\u304a\u3051\u308bMCB\u306e\u6b63\u5f0f\u540d\u79f0<\/a>.<\/p>\n<h3>MCCB<\/h3>\n<p><code>MCCB<\/code> \u30b0\u30ea\u30c3\u30c9 <strong>\u30e2\u30fc\u30eb\u30c9\u30fb\u30b1\u30fc\u30b9\u30fb\u30b5\u30fc\u30ad\u30c3\u30c8\u30fb\u30d6\u30ec\u30fc\u30ab\u30fc<\/strong>.<\/p>\n<p>MCCB\u306fMCB\u3068\u540c\u3058\u30b3\u30a2\u4fdd\u8b77\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u304c\u3001\u4e00\u822c\u7684\u306b\u3001\u3088\u308a\u9ad8\u3044\u96fb\u6d41\u30ec\u30d9\u30eb\u3001\u3088\u308a\u5927\u304d\u306a\u6545\u969c\u30ec\u30d9\u30eb\u3001\u307e\u305f\u306f\u3088\u308a\u8abf\u6574\u53ef\u80fd\u306a\u4fdd\u8b77\u8a2d\u5b9a\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n<p>MCB\u306e\u4ee3\u308f\u308a\u306bMCCB\u3092\u4f7f\u7528\u3059\u308b\u4e00\u822c\u7684\u306a\u7406\u7531\uff1a<\/p>\n<ul>\n<li>\u3088\u308a\u5927\u304d\u306a\u30d5\u30a3\u30fc\u30c0\u30fc\u56de\u8def<\/li>\n<li>\u7523\u696d\u7528\u30d1\u30cd\u30eb<\/li>\n<li>\u3088\u308a\u9ad8\u3044\u6545\u969c\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u4f34\u3046\u30e2\u30fc\u30bf\u30fc\u307e\u305f\u306f\u914d\u96fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/li>\n<li>\u4e00\u90e8\u306e\u8a2d\u8a08\u3067\u8abf\u6574\u53ef\u80fd\u306a\u30c8\u30ea\u30c3\u30d7\u8a2d\u5b9a\u304c\u5fc5\u8981<\/li>\n<\/ul>\n<p>\u5c02\u7528\u306e\u5b9a\u7fa9\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044 <a href=\"https:\/\/test.viox.com\/ja\/mccb-full-form-molded-case-circuit-breaker\/\">MCCB\u306e\u6b63\u5f0f\u540d\u79f0\uff1aMolded Case Circuit Breaker\uff08\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\uff09<\/a>.<\/p>\n<h3>RCB<\/h3>\n<p><code>RCB<\/code> \u901a\u5e38\uff5e\u3092\u6307\u3057\u307e\u3059 <strong>\u6f0f\u96fb\u906e\u65ad\u5668<\/strong>, \u3001\u3057\u304b\u3057\u3001\u3053\u306e\u7528\u8a9e\u306f\uff5e\u307b\u3069\u6b63\u78ba\u3067\u306f\u3042\u308a\u307e\u305b\u3093 <code>RCCB<\/code> \u307e\u305f\u306f <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code>.<\/p>\n<p>\u5b9f\u969b\u306b\u306f\u3001, <code>RCB<\/code> \u306f\u3001\u4f1a\u8a71\u3001\u53e4\u3044\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3001\u307e\u305f\u306f\u6df7\u5728\u3057\u305f\u30ab\u30bf\u30ed\u30b0\u3067\u5927\u307e\u304b\u306b\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u304c\u6df7\u4e71\u3092\u62db\u304f\u7406\u7531\u3067\u3059\u3002\u4e00\u90e8\u306e\u4eba\u306f\u305d\u308c\u3092\u6f0f\u96fb\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u4e00\u822c\u7684\u306a\u30e9\u30d9\u30eb\u3068\u3057\u3066\u4f7f\u7528\u3057\u3001\u4ed6\u306e\u4eba\u306f\uff5e\u306e\u3088\u3046\u306a\u3088\u308a\u5177\u4f53\u7684\u306a\u540d\u524d\u3092\u4f7f\u7528\u3057\u307e\u3059 <code>RCCB<\/code> \u307e\u305f\u306f <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code>.<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u8cea\u554f\u304c\u6280\u8853\u7684\u306a\u3082\u306e\u3067\u3042\u308b\u5834\u5408\u306f\u3001\uff5e\u3067\u6b62\u307e\u3089\u306a\u3044\u65b9\u304c\u826f\u3044\u3067\u3057\u3087\u3046 <code>RCB<\/code>. \u3002\u554f\u984c\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u4ee5\u4e0b\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<ul>\n<li>\uff5e <code>RCCB<\/code><\/li>\n<li>\uff5e <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code><\/li>\n<li>\u307e\u305f\u306f\u3088\u308a\u5e83\u7bc4\u306a\uff5e <code>RCD<\/code> \u30ab\u30c6\u30b4\u30ea\u53c2\u7167<\/li>\n<\/ul>\n<h3>RCD<\/h3>\n<p><code>RCD<\/code> \u30b0\u30ea\u30c3\u30c9 <strong>\u6f0f\u96fb\u906e\u65ad\u88c5\u7f6e<\/strong>.<\/p>\n<p>\u3053\u308c\u306f\u901a\u5e38\u3001\u3088\u308a\u5e83\u7bc4\u306a\u30ab\u30c6\u30b4\u30ea\u7528\u8a9e\u3067\u3059\u3002\u6d3b\u7dda\u3068\u4e2d\u6027\u7dda\u306e\u96fb\u6d41\u306e\u4e0d\u5747\u8861\u3092\u76e3\u8996\u3057\u3001\u6b8b\u7559\u96fb\u6d41\u304c\u30c7\u30d0\u30a4\u30b9\u306e\u3057\u304d\u3044\u5024\u3092\u8d85\u3048\u308b\u3068\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3092\u6307\u3057\u307e\u3059\u3002.<\/p>\n<p>\u3064\u307e\u308a <code>RCCB<\/code> \u305d\u3057\u3066 <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u6f0f\u96fb\u4fdd\u8b77\u3068\u3044\u3046\u5e83\u3044\u8b70\u8ad6\u306e\u4e2d\u3067\u3001\u4e21\u65b9\u3068\u3082\u4f4d\u7f6e\u3065\u3051\u3089\u308c\u307e\u3059\u304c\u3001\u540c\u4e00\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>RCCB<\/h3>\n<p><code>RCCB<\/code> \u30b0\u30ea\u30c3\u30c9 <strong>\u6f0f\u96fb\u906e\u65ad\u5668<\/strong>.<\/p>\n<p>\u305d\u306e\u5f79\u5272\u306f\u3001\u6f0f\u6d29\u96fb\u6d41\u307e\u305f\u306f\u5730\u7d61\u72b6\u614b\u3092\u691c\u51fa\u3057\u3001\u56de\u8def\u3092\u906e\u65ad\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u305f\u3060\u3057\u3001RCCB\u306f <strong>\u305d\u308c\u81ea\u4f53\u3067\u306f\u904e\u8ca0\u8377\u304a\u3088\u3073\u77ed\u7d61\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u305b\u3093\u3002<\/strong>.<\/p>\n<p>\u305d\u308c\u304c\u3053\u306e\u30da\u30fc\u30b8\u3067\u6700\u3082\u91cd\u8981\u306a\u9055\u3044\u306e1\u3064\u3067\u3059\u3002.<\/p>\n<h3>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/h3>\n<p><code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u30b0\u30ea\u30c3\u30c9 <strong>\u904e\u96fb\u6d41\u4fdd\u8b77\u4ed8\u304d\u6f0f\u96fb\u906e\u65ad\u5668<\/strong>.<\/p>\n<p>RCBO\u306f\u4ee5\u4e0b\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u6f0f\u96fb\u4fdd\u8b77<\/li>\n<li>\u904e\u8ca0\u8377\u4fdd\u8b77\u3092\u6253\u3061\u7834\u308a\u307e\u3057\u305f<\/li>\n<li>\u77ed\u7d61\u4fdd\u8b77<\/li>\n<\/ul>\n<p>1\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u672c\u4f53\u306b\u3002.<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u8a2d\u8a08\u8005\u304c\u540c\u3058\u6700\u7d42\u56de\u8def\u306b\u5bfe\u3057\u3066\u3001\u500b\u5225\u306eRCCB\u3068MCB\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u56de\u8def\u30ec\u30d9\u30eb\u306e\u8907\u5408\u4fdd\u8b77\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u306b\u7279\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n<p>RCBO\u306b\u7126\u70b9\u3092\u5f53\u3066\u305f\u8a18\u4e8b\u3068\u3057\u3066\u3001VIOX\u306b\u306f\u4ee5\u4e0b\u3082\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/test.viox.com\/ja\/how-to-select-the-right-rcbo\/\">\u9069\u5207\u306aRCBO\u306e\u9078\u3073\u65b9<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/test.viox.com\/ja\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">RCBO\u5bfeRCCB MCB\u6bd4\u8f03\u30b9\u30da\u30fc\u30b9\u30b3\u30b9\u30c8\u9078\u629e\u6027<\/a>.<\/p>\n<h2>MCB\u5bfeMCCB<\/h2>\n<p>\u306e\u9055\u3044\u306f <code>MCB<\/code> \u305d\u3057\u3066 <code>MCCB<\/code> \u7247\u65b9\u304c\u4fdd\u8b77\u3057\u3001\u3082\u3046\u7247\u65b9\u304c\u4fdd\u8b77\u3057\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3069\u3061\u3089\u3082\u904e\u96fb\u6d41\u4fdd\u8b77\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u672c\u5f53\u306e\u9055\u3044\u306f <strong>\u9069\u7528\u7bc4\u56f2\u3068\u80fd\u529b\u3067\u3059\u3002<\/strong>.<\/p>\n<h3>MCB\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/h3>\n<ul>\n<li>\u6700\u7d42\u56de\u8def<\/li>\n<li>\u5206\u5c90\u4fdd\u8b77<\/li>\n<li>\u3088\u308a\u4f4e\u3044\u96fb\u6d41\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/li>\n<li>\u4f4f\u5b85\u304a\u3088\u3073\u8efd\u5546\u696d\u7528\u30dc\u30fc\u30c9<\/li>\n<\/ul>\n<h3>MCCB\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/h3>\n<ul>\n<li>\u30d5\u30a3\u30fc\u30c0\u30fc<\/li>\n<li>\u3088\u308a\u5927\u304d\u306a\u914d\u96fb\u76e4<\/li>\n<li>\u3088\u308a\u9ad8\u3044\u96fb\u6d41\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/li>\n<li>\u3088\u308a\u5e83\u3044\u8a2d\u5b9a\u306e\u67d4\u8edf\u6027\u3092\u5fc5\u8981\u3068\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u8a2d\u5099<\/li>\n<\/ul>\n<h3>MCB\u5bfeMCCB\u30c6\u30fc\u30d6\u30eb<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u30d5\u30a1\u30af\u30bf\u30fc<\/th>\n<th style=\"padding: 8px;\">MCB<\/th>\n<th style=\"padding: 8px;\">MCCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">\u4e00\u822c\u7684\u306a\u5f79\u5272<\/td>\n<td style=\"padding: 8px;\">\u6700\u7d42\u56de\u8def\u4fdd\u8b77<\/td>\n<td style=\"padding: 8px;\">\u30d5\u30a3\u30fc\u30c0\u30fc\u304a\u3088\u3073\u3088\u308a\u5927\u304d\u306a\u56de\u8def\u4fdd\u8b77<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u96fb\u6d41\u7bc4\u56f2\u306e\u50be\u5411<\/td>\n<td style=\"padding: 8px;\">\u3088\u308a\u4f4e\u3044<\/td>\n<td style=\"padding: 8px;\">\u3088\u308a\u9ad8\u3044<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u8a2d\u5b9a\u306e\u8abf\u6574\u53ef\u80fd\u6027<\/td>\n<td style=\"padding: 8px;\">\u901a\u5e38\u3001\u9650\u5b9a\u7684<\/td>\n<td style=\"padding: 8px;\">\u3057\u3070\u3057\u3070\u3088\u308a\u5e83\u3044<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u4e00\u822c\u7684\u306a\u74b0\u5883<\/td>\n<td style=\"padding: 8px;\">\u4f4f\u5b85\u304a\u3088\u3073\u8efd\u5546\u696d<\/td>\n<td style=\"padding: 8px;\">\u5546\u696d\u304a\u3088\u3073\u5de5\u696d<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u7269\u7406\u7684\u306a\u5927\u304d\u3055<\/td>\n<td style=\"padding: 8px;\">\u3088\u308a\u30b3\u30f3\u30d1\u30af\u30c8<\/td>\n<td style=\"padding: 8px;\">\u3088\u308a\u5927\u304d\u304f\u3001\u3088\u308a\u9811\u4e08<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u30da\u30a2\u306e\u307f\u306b\u7126\u70b9\u3092\u5f53\u3066\u305f\u8a73\u7d30\u306a\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/test.viox.com\/ja\/mccb-vs-mcb\/\">MCCB\u3068MCB\u306e\u6bd4\u8f03<\/a>.<\/p>\n<h2>RCB\u5bfeRCD\u5bfeRCCB<\/h2>\n<p>\u3053\u306e\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u540d\u524d\u304c\u4f3c\u3066\u3044\u308b\u305f\u3081\u6700\u3082\u6df7\u4e71\u3092\u62db\u304d\u307e\u3059\u304c\u3001\u5e38\u306b\u540c\u3058\u30ec\u30d9\u30eb\u306e\u5177\u4f53\u6027\u3067\u4f7f\u7528\u3055\u308c\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>\u3053\u308c\u3089\u3092\u7406\u89e3\u3059\u308b\u6700\u3082\u7c21\u5358\u306a\u65b9\u6cd5\u306f<\/h3>\n<ul>\n<li><code>RCD<\/code> \u901a\u5e38\u306f <strong>\u5e83\u7bc4\u306a\u30ab\u30c6\u30b4\u30ea\u7528\u8a9e<\/strong><\/li>\n<li><code>RCCB<\/code> \u306f <strong>\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u30bf\u30a4\u30d7<\/strong><\/li>\n<li><code>RCB<\/code> \u3057\u3070\u3057\u3070 <strong>\u5927\u307e\u304b\u307e\u305f\u306f\u305d\u308c\u307b\u3069\u6b63\u78ba\u3067\u306f\u306a\u3044\u30e9\u30d9\u30eb<\/strong><\/li>\n<\/ul>\n<p>\u3064\u307e\u308a\u3001\u8ab0\u304b\u304c <code>RCD\u5bfeRCCB<\/code>, \u306b\u3064\u3044\u3066\u5c0b\u306d\u308b\u5834\u5408\u3001\u7b54\u3048\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u76f4\u63a5\u7684\u306a\u300c\u3088\u308a\u826f\u3044\u304b\u60aa\u3044\u304b\u300d\u306e\u6bd4\u8f03\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u3080\u3057\u308d <strong>\u30ab\u30c6\u30b4\u30ea\u5bfe\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u540d<\/strong>.<\/p>\n<h3>\u5b9f\u7528\u7684\u306a\u89e3\u91c8<\/h3>\n<p>\u4ed5\u69d8\u3001\u30d1\u30cd\u30eb\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3001\u307e\u305f\u306f\u88fd\u54c1\u30ab\u30bf\u30ed\u30b0\u306b <code>RCD<\/code>, \u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4e00\u822c\u7684\u306a\u6f0f\u96fb\u4fdd\u8b77\u6a5f\u80fd\u3092\u610f\u5473\u3059\u308b\u304b\u3069\u3046\u304b<\/li>\n<li>\u610f\u56f3\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u304c\u5b9f\u969b\u306b <code>RCCB<\/code><\/li>\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u672c\u5f53\u306b <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u306e\u4ee3\u308f\u308a\u306b\u5fc5\u8981\u304b\u3069\u3046\u304b<\/li>\n<\/ul>\n<p>\u3053\u308c\u306f\u3001\u4e0d\u9069\u5207\u306a\u7528\u8a9e\u304c\u8abf\u9054\u30df\u30b9\u3092\u5f15\u304d\u8d77\u3053\u3059\u539f\u56e0\u3067\u3059\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Electrician-inspecting-a-distribution-board-with-MCB-RCCB-and-RCBO-devices-installed.webp\" alt=\"Electrician inspecting a distribution board with MCB, RCCB, and RCBO devices installed\" \/><figcaption><em>MCB\u3001RCCB\u3001\u304a\u3088\u3073RCBO\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u6df7\u5728\u3059\u308b\u914d\u96fb\u76e4\u3092\u5b89\u5168\u306b\u691c\u67fb\u3059\u308b\u96fb\u6c17\u6280\u5e2b\u3002.<\/em><\/figcaption><\/figure>\n<h2>RCBO\u304c\u7570\u306a\u308b\u7406\u7531<\/h2>\n<p>RCBO\u304c\u91cd\u8981\u306a\u306e\u306f\u3001\u4e0a\u8a18\u3067\u8aac\u660e\u3057\u305f2\u3064\u306e\u4fdd\u8b77\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u6a4b\u6e21\u3057\u3059\u308b\u304b\u3089\u3067\u3059\u3002.<\/p>\n<p>\u30a2\u30f3 <code>MCB<\/code> \u306f\u904e\u96fb\u6d41\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002.<br \/>\n\u30a2\u30f3 <code>RCCB<\/code> \u306f\u6f0f\u96fb\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002.<br \/>\n\u30a2\u30f3 <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u306f\u4e21\u65b9\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002.<\/p>\n<h3>RCBO\u5bfeRCCB<\/h3>\n<p>\u6bd4\u8f03\u3059\u308b\u5834\u5408 <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u305d\u3057\u3066 <code>RCCB<\/code>, \u4e3b\u306a\u9055\u3044\u306f\u5358\u7d14\u3067\u3059\uff1a<\/p>\n<ul>\n<li><code>RCCB<\/code> \u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306e\u5225\u306e\u5834\u6240\u3067\u3001\u500b\u5225\u306e\u904e\u96fb\u6d41\u4fdd\u8b77\u304c\u5fc5\u8981\u3067\u3059<\/li>\n<li><code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u3059\u3067\u306b\u904e\u96fb\u6d41\u4fdd\u8b77\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/li>\n<\/ul>\n<p>\u305d\u308c\u306f\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u30d1\u30cd\u30eb\u30b9\u30da\u30fc\u30b9<\/li>\n<li>\u56de\u8def\u9078\u629e\u6027\u6226\u7565<\/li>\n<li>\u30b3\u30b9\u30c8\u69cb\u9020<\/li>\n<li>\u56de\u8def\u30ec\u30d9\u30eb\u3067\u306e\u6545\u969c\u5206\u96e2<\/li>\n<\/ul>\n<p>\u3053\u306e\u6bd4\u8f03\u306e\u8a73\u7d30\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044 <a href=\"https:\/\/test.viox.com\/ja\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">RCBO\u5bfeRCCB MCB\u6bd4\u8f03\u30b9\u30da\u30fc\u30b9\u30b3\u30b9\u30c8\u9078\u629e\u6027<\/a>.<\/p>\n<h3>RCBO \u5bfe MCB<\/h3>\n<p>\u6bd4\u8f03\u3059\u308b\u5834\u5408 <code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> \u305d\u3057\u3066 <code>MCB<\/code>, \u9055\u3044\u3082\u307e\u305f\u7c21\u5358\u3067\u3059\uff1a<\/p>\n<ul>\n<li><code>MCB<\/code> = \u904e\u8ca0\u8377\u304a\u3088\u3073\u77ed\u7d61\u306e\u307f<\/li>\n<li><code>\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/code> = \u904e\u8ca0\u8377\u3001\u77ed\u7d61\u3001\u304a\u3088\u3073\u6f0f\u96fb<\/li>\n<\/ul>\n<p>\u305d\u308c\u306f\u81ea\u52d5\u7684\u306bRCBO\u304c\u5e38\u306b\u6b63\u3057\u3044\u7b54\u3048\u3067\u3042\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u4fdd\u8b77\u6a5f\u80fd\u304c\u3088\u308a\u5e83\u7bc4\u3067\u3042\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u9078\u629e\u3092\u6c7a\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n<h2>\u9069\u5207\u306a\u30c7\u30d0\u30a4\u30b9\u306e\u9078\u629e\u65b9\u6cd5<\/h2>\n<p>\u8aad\u8005\u304c\u3082\u306f\u3084\u5358\u306b\u540d\u524d\u3092\u6bd4\u8f03\u3057\u3066\u3044\u308b\u3060\u3051\u3067\u306f\u306a\u3044\u5834\u5408\u3001\u6b21\u306e\u8cea\u554f\u306f\u901a\u5e38\u9078\u629e\u3067\u3059\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Annotated-panel-layout-showing-typical-applications-of-MCB-MCCB-RCCB-and-RCBO-in-one-system.webp\" alt=\"Annotated panel layout showing typical applications of MCB, MCCB, RCCB, and RCBO in one system\" \/><figcaption><em>\u5404\u30c7\u30d0\u30a4\u30b9\u30bf\u30a4\u30d7\u306e\u5178\u578b\u7684\u306a\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u793a\u3059\u3001\u6ce8\u91c8\u4ed8\u304d\u306e\u4f4e\u96fb\u5727\u914d\u96fb\u76e4\u30de\u30c3\u30d7\u3002.<\/em><\/figcaption><\/figure>\n<h3>\u9078\u629e\u8868<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u72b6\u6cc1<\/th>\n<th style=\"padding: 8px;\">\u901a\u5e38\u3001\u691c\u8a0e\u3092\u958b\u59cb\u3059\u308b\u306e\u306f<\/th>\n<th style=\"padding: 8px;\">\u306a\u305c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">\u6a19\u6e96\u7684\u306a\u6700\u7d42\u56de\u8def\u306e\u904e\u96fb\u6d41\u4fdd\u8b77<\/td>\n<td style=\"padding: 8px;\">MCB<\/td>\n<td style=\"padding: 8px;\">\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u3001\u591a\u304f\u306e\u5206\u5c90\u56de\u8def\u306b\u9069\u3057\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u3088\u308a\u9ad8\u96fb\u6d41\u306e\u30d5\u30a3\u30fc\u30c0\u30fc\u307e\u305f\u306f\u7523\u696d\u7528\u914d\u96fb<\/td>\n<td style=\"padding: 8px;\">MCCB<\/td>\n<td style=\"padding: 8px;\">\u3088\u308a\u5927\u5bb9\u91cf\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u500b\u5225\u306e\u904e\u96fb\u6d41\u30c7\u30d0\u30a4\u30b9\u306b\u3088\u308b\u6f0f\u96fb\u4fdd\u8b77<\/td>\n<td style=\"padding: 8px;\">RCCB<\/td>\n<td style=\"padding: 8px;\">\u6f0f\u96fb\u4fdd\u8b77\u306e\u5f79\u5272<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">1\u3064\u306e\u56de\u8def\u3067\u306e\u6f0f\u96fb\u304a\u3088\u3073\u904e\u96fb\u6d41\u4fdd\u8b77\u306e\u7d44\u307f\u5408\u308f\u305b<\/td>\n<td style=\"padding: 8px;\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/td>\n<td style=\"padding: 8px;\">\u8907\u6570\u306e\u4fdd\u8b77\u6a5f\u80fd\u30921\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u7d71\u5408\u3057\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u5e83\u7fa9\u306e\u6f0f\u96fb\u306b\u95a2\u3059\u308b\u7528\u8a9e<\/td>\n<td style=\"padding: 8px;\">RCD<\/td>\n<td style=\"padding: 8px;\">\u30ab\u30c6\u30b4\u30ea\u7528\u8a9e\u3067\u3042\u308a\u3001\u5fc5\u305a\u3057\u3082\u6700\u7d42\u7684\u306a\u30c7\u30d0\u30a4\u30b9\u306e\u9078\u629e\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u9078\u629e\u3059\u308b\u524d\u306b\u5c0b\u306d\u308b\u3079\u304d\u8cea\u554f<\/h3>\n<ul>\n<li>\u4e3b\u306a\u30cb\u30fc\u30ba\u306f\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u3001\u6f0f\u96fb\u4fdd\u8b77\u3001\u307e\u305f\u306f\u305d\u306e\u4e21\u65b9\u3067\u3059\u304b\uff1f<\/li>\n<li>\u3053\u308c\u306f\u6700\u7d42\u56de\u8def\u3067\u3059\u304b\u3001\u305d\u308c\u3068\u3082\u3088\u308a\u5927\u304d\u306a\u30d5\u30a3\u30fc\u30c0\u30fc\u56de\u8def\u3067\u3059\u304b\uff1f<\/li>\n<li>\u4e88\u60f3\u3055\u308c\u308b\u6545\u969c\u30ec\u30d9\u30eb\u306f\u3069\u308c\u304f\u3089\u3044\u3067\u3059\u304b\uff1f<\/li>\n<li>\u30d1\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n<li>\u8a2d\u8a08\u3067\u306f\u30011\u3064\u306e\u6f0f\u96fb\u30c7\u30d0\u30a4\u30b9\u306e\u4e0b\u306b\u591a\u304f\u306e\u56de\u8def\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u56de\u8def\u30ec\u30d9\u30eb\u306e\u5206\u96e2\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/li>\n<li>\u5730\u57df\u306e\u898f\u5247\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4ed5\u69d8\u3001\u304a\u3088\u3073\u88fd\u9020\u5143\u306e\u6307\u793a\u306f\u4f55\u3092\u8981\u6c42\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n<\/ul>\n<h2>\u5171\u901a\u306e\u9593\u9055\u3044\u3092\u907f\u3051\u308b<\/h2>\n<p>\u3053\u308c\u3089\u306f\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u6700\u3082\u6df7\u4e71\u3092\u5f15\u304d\u8d77\u3053\u3059\u9593\u9055\u3044\u3067\u3059\u3002<\/p>\n<h3>1. RCD\u3001RCCB\u3001\u304a\u3088\u3073RCB\u3092\u5b8c\u5168\u306b\u4e92\u63db\u6027\u304c\u3042\u308b\u3082\u306e\u3068\u3057\u3066\u6271\u3046<\/h3>\n<p>\u305d\u308c\u3089\u306f\u5bc6\u63a5\u306b\u95a2\u9023\u3059\u308b\u7528\u8a9e\u3067\u3059\u304c\u3001\u5fc5\u305a\u3057\u3082\u6b63\u78ba\u306a\u4ee3\u66ff\u54c1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30ab\u30c6\u30b4\u30ea\u306e\u8a00\u8a9e\u3068\u30c7\u30d0\u30a4\u30b9\u306e\u547d\u540d\u3092\u6ce8\u610f\u6df1\u304f\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>2. RCCB\u304c\u904e\u96fb\u6d41\u4fdd\u8b77\u3092\u63d0\u4f9b\u3059\u308b\u3068\u60f3\u5b9a\u3059\u308b<\/h3>\n<p>\u305d\u3046\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002RCCB\u306f\u6f0f\u96fb\u4fdd\u8b77\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u304a\u308a\u3001\u6b63\u3057\u3044\u4fdd\u8b77\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u5185\u3067\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>3. \u8907\u5408\u4fdd\u8b77\u304c\u5fc5\u8981\u306a\u5834\u5408\u306bMCB\u3092\u9078\u629e\u3059\u308b<\/h3>\n<p>\u56de\u8def\u304c1\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u6f0f\u96fb\u4fdd\u8b77\u3068\u904e\u96fb\u6d41\u4fdd\u8b77\u306e\u4e21\u65b9\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u3001MCB\u3060\u3051\u3067\u306f\u5341\u5206\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>4. \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u9069\u5408\u6027\u3092\u78ba\u8a8d\u305b\u305a\u306b\u3001RCBO\u3092\u5305\u62ec\u7684\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b<\/h3>\n<p>RCBO\u306f\u5f37\u529b\u3067\u3059\u304c\u3001\u9078\u629e\u306f\u4f9d\u7136\u3068\u3057\u3066\u56de\u8def\u8a2d\u8a08\u3001\u5b9a\u683c\u3001\u6f0f\u96fb\u611f\u5ea6\u3001\u906e\u65ad\u5bb9\u91cf\u3001\u304a\u3088\u3073\u5354\u8abf\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002.<\/p>\n<h3>5. MCB\u3068MCCB\u306e\u96fb\u6d41\/\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u7bc4\u56f2\u306e\u9055\u3044\u3092\u7121\u8996\u3059\u308b<\/h3>\n<p>\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u6982\u5ff5\u7684\u306b\u306f\u91cd\u8907\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5fc5\u305a\u3057\u3082\u540c\u3058\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a6\u30a3\u30f3\u30c9\u30a6\u306b\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h2>\u95a2\u9023<\/h2>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/ja\/mcb-full-form-in-electrical\/\">\u96fb\u6c17\u306b\u304a\u3051\u308bMCB\u306e\u6b63\u5f0f\u540d\u79f0<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/mccb-full-form-molded-case-circuit-breaker\/\">MCCB\u306e\u6b63\u5f0f\u540d\u79f0\uff1aMolded Case Circuit Breaker\uff08\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\uff09<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB\u306e\u30d5\u30eb\u30d5\u30a9\u30fc\u30e0\u3067\u3042\u308b\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u7406\u89e3<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/mccb-vs-mcb\/\">MCCB\u3068MCB\u306e\u6bd4\u8f03<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">RCBO\u5bfeRCCB MCB\u6bd4\u8f03\u30b9\u30da\u30fc\u30b9\u30b3\u30b9\u30c8\u9078\u629e\u6027<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/rcbo-vs-afdd-difference-guide\/\">RCBO \u5bfe AFDD \u306e\u9055\u3044\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/how-to-select-the-right-rcbo\/\">\u9069\u5207\u306aRCBO\u306e\u9078\u3073\u65b9<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/how-to-select-an-mccb-for-a-panel\/\">\u30d1\u30cd\u30eb\u7528MCCB\u306e\u9078\u629e\u65b9\u6cd5<\/a><\/li>\n<\/ul>\n<h2>\u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/h2>\n<h3>MCB\u3068MCCB\u306e\u4e3b\u306a\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u4e21\u65b9\u3068\u3082\u904e\u8ca0\u8377\u3068\u77ed\u7d61\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u304c\u3001MCCB\u306f\u4e00\u822c\u7684\u306b\u5927\u578b\u3067\u9ad8\u5bb9\u91cf\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4f7f\u7528\u3055\u308c\u3001MCB\u306f\u901a\u5e38\u3001\u6700\u7d42\u56de\u8def\u3084\u8efd\u8ca0\u8377\u306e\u914d\u96fb\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n<h3>RCD\u3068RCCB\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>RCD\u306f\u901a\u5e38\u3001\u3088\u308a\u5e83\u7bc4\u306a\u30ab\u30c6\u30b4\u30ea\u306e\u7528\u8a9e\u3067\u3042\u308a\u3001RCCB\u306f\u3088\u308a\u7279\u5b9a\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u30c7\u30d0\u30a4\u30b9\u3092\u6307\u3057\u307e\u3059\u3002.<\/p>\n<h3>RCB\u306fRCCB\u3068\u540c\u3058\u3082\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u5fc5\u305a\u3057\u3082\u305d\u3046\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002RCB\u306f\u3057\u3070\u3057\u3070\u5927\u307e\u304b\u307e\u305f\u306f\u7c21\u7565\u5316\u3055\u308c\u305f\u7528\u8a9e\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u3001RCCB\u306f\u3088\u308a\u6b63\u78ba\u306a\u30c7\u30d0\u30a4\u30b9\u540d\u3067\u3059\u3002.<\/p>\n<h3>RCCB\u3068RCBO\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>RCCB\u306f\u6f0f\u96fb\u4fdd\u8b77\u306e\u307f\u3092\u63d0\u4f9b\u3059\u308b\u306e\u306b\u5bfe\u3057\u3001RCBO\u306f\u6f0f\u96fb\u4fdd\u8b77\u306b\u52a0\u3048\u3066\u904e\u8ca0\u8377\u304a\u3088\u3073\u77ed\u7d61\u4fdd\u8b77\u3092\u517c\u306d\u5099\u3048\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>RCBO\u306fMCB\u3088\u308a\u512a\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u3059\u3079\u3066\u306e\u7528\u9014\u306b\u8a72\u5f53\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002RCBO\u306fMCB\u3088\u308a\u3082\u5e83\u7bc4\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u9069\u5207\u306a\u9078\u629e\u306f\u3001\u4fdd\u8b77\u306e\u76ee\u7684\u3001\u56de\u8def\u8a2d\u8a08\u3001\u304a\u3088\u3073\u8a2d\u7f6e\u8981\u4ef6\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Comparison photo of MCB, MCCB, RCD, RCCB, and RCBO electrical protection devices. If you are trying to understand the difference between MCB, MCCB, RCB, RCD, RCCB, and RCBO, the short answer is this: MCB and MCCB mainly protect against overload and short circuit RCD, RCCB, and RCB are mainly used for residual-current or earth-leakage protection RCBO combines residual-current protection with overcurrent protection in one device That is the core distinction. The confusion usually starts because some of these terms are device names, while others are broader category terms that get used differently across markets. This guide is designed to make that difference clear, fast, and practical. Quick Comparison Table An [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18344,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18343","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\/18343","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=18343"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/18343\/revisions"}],"predecessor-version":[{"id":21685,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/18343\/revisions\/21685"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media\/18344"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media?parent=18343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/categories?post=18343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/tags?post=18343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}