{"id":19098,"date":"2025-08-06T23:11:57","date_gmt":"2025-08-06T15:11:57","guid":{"rendered":"https:\/\/viox.com\/?p=19098"},"modified":"2025-08-06T23:11:59","modified_gmt":"2025-08-06T15:11:59","slug":"why-is-there-no-short-circuit-making-current-mentioned-in-the-mcb","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ja\/why-is-there-no-short-circuit-making-current-mentioned-in-the-mcb\/","title":{"rendered":"\u7406\u7531\u306f\u3042\u308a\u307e\u305b\u3093\u306e\u77ed\u3044\u56de\u8def\u3092\u4f5c\u96fb\u6d41\u306eMCB"},"content":{"rendered":"<div class=\"product-intro\">\n<p><strong>Direct Answer:<\/strong> MCBs\uff08\u30df\u30cb\u30c1\u30e5\u30a2\u56de\u8def\u30d6\u30ec\u30fc\u30ab\uff09\u3068\u3044\u3046\u8a00\u8449\u306f\u4f7f\u3063\u3066\u3044\u306a\u3044\u3082\u306e\u77ed\u7d61\u3092\u4f5c\u308a\u73fe\u3044\u305f\u8a2d\u8a08\u56fa\u6709\u306e\u4f5c\u308a\u306e\u5bb9\u91cf\u4ee5\u4e0a\u306e\u906e\u65ad\u5bb9\u91cf\u306f\u6a19\u6e96\u306e\u89812.1 2.2\u3068\u3057\u3066\u7fa9\u52d9\u4ed8\u3051\u3089\u308cIEC60898\u307e\u3059\u3002 \u3053\u308c\u306f\u5185\u8535\u306e\u5b89\u5168\u7387\u3068\u30e1\u30fc\u30ab\u30fc\u306e\u307f\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u906e\u65ad\u5bb9\u91cf(Ic\/\u56fd\u969b\u57fa\u7763\u6559\u5927\u5b66\uff08Icu\uff09\u3001\u306e\u5bb9\u91cf\u304c\u81ea\u52d5\u7684\u306b\u4fdd\u8a3c\u5bfe\u5fdc\u306e\u975e\u5bfe\u79f0\u65ad\u5c64\u6d41\u4e2d\u306e\u56de\u8def\u958b\u9589\u3002<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19074\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/08\/VOM2-125-MCB-125A.webp\" alt=\"VOM2-125 MCB 125A\" width=\"800\" height=\"429\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/08\/VOM2-125-MCB-125A.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/08\/VOM2-125-MCB-125A-300x161.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/08\/VOM2-125-MCB-125A-768x412.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/08\/VOM2-125-MCB-125A-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/08\/VOM2-125-MCB-125A-600x322.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/test.viox.com\/ja\/mcb\/\">VIOX MCB<\/a><\/p>\n<h2>\u7406\u89e3MCB\u4f5c\u96fb\u6d41vs\u906e\u65ad\u96fb\u6d41<\/h2>\n<p>\u304d\u3044\u9078\u629eMCBs\u304a\u96fb\u6c17\u8a2d\u5099\u3001\u901a\u4ed5\u69d8\u4e00\u89a7\u906e\u65ad\u5bb9\u91cf\u304c\u4e0d\u601d\u8b70\u3092\u7701\u7565\u3059\u308b\u4f5c\u96fb\u6d41\u5b9a\u683c\u3068\u3059\u308b\u3002 \u3053\u306e\u306a\u76e3\u7763\u3067\u610f\u56f3\u7684\u5de5\u5b66\u8a2d\u8a08\u306b\u3088\u308a\u7c21\u5358\u306b\u9078\u629e\u3092\u78ba\u4fdd\u3057\u3064\u3064\u3001\u5b89\u5168\u6027\u3067\u3059\u3002<\/p>\n<h3>\u3053\u306e\u4f5c\u96fb\u6d41\u306e\u7570\u306a\u308b\u304b\u3089\u906e\u65ad\u96fb\u6d41<\/h3>\n<p><strong>\u4f5c\u96fb\u6d41<\/strong> \u306e\u6700\u5927\u30d4\u30fc\u30af\u96fb\u6d41MCB\u3067\u306e\u5b89\u5168\u306a\u53d6\u6271\u3044\u3092\u9589\u3058\u305f\u3068\u304d\u306e\u7740\u65e2\u5b58\u306e\u65ad\u3057\u305f\u3068\u304d\u3002 \u3053\u306e\u91cd\u8981\u306a\u77ac\u9593\u306e\u6d412.1 2.2\u500d\u5b9f\u52b9\u906e\u65ad\u96fb\u6d41\u306b\u76f4\u6d41\u6210\u5206\u306e\u975e\u5bfe\u79f0\u6027<\/p>\n<p><strong>\u906e\u65ad\u96fb\u6d41<\/strong> \u306e\u6700\u5927\u6d41\u306eMCB\u3067\u5b89\u5168\u306b\u5272\u308a\u8fbc\u307f\u3084\u304b\u306b\u56de\u8def\u3067\u3059\u3002 \u3053\u306e\u9805\u76ee\u3067\u691c\u7d22\u6761\u4ef6\u3092\u7d5e\u308a\u8fbc\u5370\u5237\u6bceMCB Ic\uff08\u30b5\u30fc\u30d3\u30b9\u906e\u65ad\u5bb9\u91cf)\u307e\u305f\u306f\u5b66(\u7a76\u6975\u306e\u906e\u65ad\u5bb9\u91cf).<\/p>\n<h2>\u4e3b\u306a\u9055\u3044\u306b\u3064\u3044\u3066\u3044\u308b\u3053\u3068\u304c\u4e8b\u696d<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5fb4<\/th>\n<th>\u4f5c<\/th>\n<th>\u7815\u64cd\u4f5c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u73fe\u5728\u306e\u5927\u304d\u3055<\/td>\n<td>2.1-2.2\u00d7RMS\u5024<\/td>\n<td>RMS\u5bfe\u79f0\u5024<\/td>\n<\/tr>\n<tr>\n<td>\u76f4\u6d41\u6210\u5206<\/td>\n<td>\u6700\u5927(100%)<\/td>\n<td>\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059(0-100%)<\/td>\n<\/tr>\n<tr>\n<td>\u63a5\u89e6\u5fdc\u529b<\/td>\n<td>\u96fb\u78c1\u6c17\u53cd\u767a<\/td>\n<td>\u30a2\u30fc\u30af\u4fb5\u98df<\/td>\n<\/tr>\n<tr>\n<td>\u671f\u9593<\/td>\n<td>\u77ac\u6642\u5f62\uff0810ms\u672a\u6e80\uff09<\/td>\n<td>10-20ms\u5178\u578b\u7684\u306a<\/td>\n<\/tr>\n<tr>\n<td>\u91cd\u8981\u306a\u56e0\u5b50<\/td>\n<td>\u6a5f\u68b0\u7684\u306b\u8010\u3048\u308b<\/td>\n<td>\u30a2\u30fc\u30af\u7d76\u6ec5<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30b6\u30a4\u30f3\u512a\u5148<\/td>\n<td>\u5f37\u56fa\u306a\u9023\u7d61\u5148<\/td>\n<td>\u30a2\u30fc\u30af\u52b9\u7387\u306e\u30b7\u30e5\u30fc\u30c8<\/td>\n<\/tr>\n<tr>\n<td>\u6a19\u6e96\u306e\u57fa\u6e96<\/td>\n<td>IEC60898-1\u98059.12.11<\/td>\n<td>IEC60898-1 9.12\u9805<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-18582\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/30A-AMP-Breaker.webp\" alt=\"30A AMP Breaker\" width=\"800\" height=\"540\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/30A-AMP-Breaker.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/30A-AMP-Breaker-300x203.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/30A-AMP-Breaker-768x518.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/30A-AMP-Breaker-18x12.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/30A-AMP-Breaker-600x405.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>\u306a\u305cMCB\u30e1\u30fc\u30ab\u30fc\u3092\u6307\u5b9a\u3057\u306a\u3044\u4f5c\u96fb\u6d41<\/h2>\n<h3>1. \u5185\u8535\u306e\u5b89\u5168\u4fc2\u6570<\/h3>\n<p>MCBs\u88fd\u4f5c\u80fd\u529b\u3092\u81ea\u52d5\u7684\u306b\u30b5\u30a4\u30ba\u306e2.2\u500d\u306e\u906e\u65ad\u5bb9\u91cf. \u9078\u629e\u3059\u308b\u3068\u3001MCB\u306810kA\u906e\u65ad\u5bb9\u91cf\u3001\u4fdd\u8a3c\u3067\u304d\u308b\u4e0a\u6d41\u306e22kA\u3002<\/p>\n<h3>2. \u56fd\u969b\u6a19\u6e96\u306e\u8981\u4ef6<\/h3>\n<p>IEC60898-1\u308b\u3053\u3068\u3092\u7fa9\u52d9\u4ed8\u3051\u308b\u3082\u306e\u3067\u3001\u3059\u3079\u3066\u306eMCBs\u306b\u5fdc\u3058\u305f\u4f5c\u96fb\u6d41\u3092\u6240\u5b9a\u306e\u6bd4\u3068\u306a\u308a\u307e\u3059\u3002 \u30e1\u30fc\u30ab\u30fc\u306a\u5bfe\u5fdcMCBs\u306a\u3053\u306e\u6a5f\u80fd\u3092\u3001\u5225\u4ed5\u69d8\u5197\u9577\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>3. \u7c21\u6613\u9078\u5b9a<\/h3>\n<p>\u3092\u906e\u65ad\u5bb9\u91cf\u306e\u307f\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3067\u304dMCBs\u306b\u57fa\u3065\u304f\u5c06\u6765\u306e\u6545\u969c\u96fb\u6d41\u306e\u8a08\u7b97\u3092\u305b\u305a\u306b\u8907\u96d1\u306a\u975e\u5bfe\u79f0\u6027\u56e0\u5b50\u306e\u8a08\u7b97\u304c\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<blockquote><p><strong>\u5c02\u9580\u5bb6\u306b\u30d2\u30f3\u30c8:<\/strong> \u5e38\u306b\u691c\u8a3c\u8a2d\u5099\u306e\u6545\u969c\u96fb\u6d41\u3092\u9069\u5207\u306a\u8a66\u9a13\u88c5\u7f6e\u3067\u3059\u3002 \u306e\u906e\u65ad\u5bb9\u91cf\u3092\u4e0a\u56de\u3089\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u306e\u5024\u306b\u9069\u5207\u306a\u5b89\u5168\u7387\u3067\u3042\u308b\u3002<\/p><\/blockquote>\n<h2>MCB\u683c\u4ed8\u3051\u4e0a\u306e\u5206\u985e\u53ca\u3073\u4f5c\u6210\u80fd\u529b<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u906e\u65ad\u5bb9\u91cf(Ic\/\u56fd\u969b\u57fa\u7763\u6559\u5927\u5b66\uff08Icu\uff09<\/th>\n<th>\u81ea\u52d5\u4f5c\u6210\u80fd\u529b<\/th>\n<th>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>3kA<\/td>\n<td>6.6kA\u30d4\u30fc\u30af<\/td>\n<td>\u4f4f\u5b85\u306e\u6700\u7d42\u56de\u8def<\/td>\n<\/tr>\n<tr>\n<td>4.5kA<\/td>\n<td>9.9kA\u30d4\u30fc\u30af<\/td>\n<td>\u8efd\u5546\u7528\u56de\u8def<\/td>\n<\/tr>\n<tr>\n<td>6kA<\/td>\n<td>13.2kA\u30d4\u30fc\u30af<\/td>\n<td>\u6a19\u6e96\u5546\u696d\/\u5de5\u696d<\/td>\n<\/tr>\n<tr>\n<td>10kA<\/td>\n<td>22kA\u30d4\u30fc\u30af<\/td>\n<td>\u91cd\u5de5\u696d\/\u30c8\u30e9\u30f3\u30b9\u4ed8\u8fd1<\/td>\n<\/tr>\n<tr>\n<td>15kA<\/td>\n<td>33kA\u30d4\u30fc\u30af<\/td>\n<td>\u4e3b\u914d\u96fb\u76e4<\/td>\n<\/tr>\n<tr>\n<td>25kA<\/td>\n<td>55kA\u30d4\u30fc\u30af<\/td>\n<td>\u7523\u696d\u7528\u914d\u96fb\u76e4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-18398\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles.webp\" alt=\"1P-4P Circuit Breaker Poles\" width=\"800\" height=\"466\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-300x175.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-768x447.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-600x350.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>\u30a2\u30d7\u30ea\u3092\u4f5c\u96fb\u6d41\u306e\u6c7a\u5b9a<\/h2>\n<h3>\u8fd1\u304f\u306b\u30c8\u30e9\u30f3\u30b9\u8a2d\u7f6e<\/h3>\n<p>\u5fc5\u8981\u306a\u9ad8\u3044\u906e\u65ad\u5bb9\u91cfMCBs\u7f6e\u3059\u308b\u969b\u306b\u56de\u8def\u306b\u8fd1\u3044\u30c8\u30e9\u30f3\u30b9\u304c\u5c64\u6d41\u3092\u6700\u5927\u306b\u3059\u308b \u306e\u80fd\u529b\u304c\u91cd\u8981\u306b\u306a\u308a\u4e2d<\/p>\n<ul>\n<li>\u4fee\u5fa9\u5f8c\u306e\u4e00\u6642\u505c\u6b62<\/li>\n<li>\u30de\u30cb\u30e5\u30a2\u30eb\u56de\u8def\u306e\u901a\u96fb<\/li>\n<li>\u81ea\u52d5reclosing\u696d\u52d9<\/li>\n<\/ul>\n<h3>\u7523\u696d\u7528\u30e2\u30fc\u30bf\u30fc\u56de\u8def<\/h3>\n<p>\u5927\u578b\u30e2\u30fc\u30bf\u30fc\u56de\u8def\u72ec\u81ea\u306e\u8ab2\u984c\u3092\u9ad8\u3044\u7a81\u5165\u96fb\u6d41\u306e\u96fb\u6d41\u304c\u6d41\u308c\u308b\u3088\u3046\u306b\u3057\u305f\u3002 \u306a\u65ad\u5c64\u6d41\u304b\u3089\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u73fe\u5728\u306e\u6c34\u6e96\u671f\u9593\uff1a<\/p>\n<ul>\n<li>\u76f4\u63a5\u30aa\u30f3\u30e9\u30a4\u30f3\u958b\u59cb<\/li>\n<li>\u30b9\u30bf\u30fc-\u30c7\u30eb\u30bf\u306e\u79fb\u884c<\/li>\n<li>\u81ea\u52d5\u8eca-\u30c8\u30e9\u30f3\u30b9\u958b\u59cb<\/li>\n<\/ul>\n<h3>\u4e26\u5217\u4f9b\u7d66\u30b7\u30b9\u30c6\u30e0<\/h3>\n<p>\u8907\u6570\u306e\u30c8\u30e9\u30f3\u30b9\u3084\u767a\u96fb\u6a5f\u306e\u904b\u55b6\u4e26\u5217\u6545\u969c\u96fb\u6d41\u3092\u5927\u5e45\u306b\u5897\u52a0\u3057\u307e\u3059\u3002 \u6c7a\u80fd\u529b\u5b89\u5168\u30de\u30cb\u30e5\u30a2\u30eb\u64cd\u4f5c\u306b\u3082\u6700\u60aa\u6545\u969c\u307e\u3059\u3002<\/p>\n<blockquote><p><strong>\u26a0\ufe0f\u5b89\u5168\u8b66\u544a:<\/strong> \u306b\u3088\u308a\u3001MCB\u306f\u624b\u52d5\u3067\u3057\u305f\u7591\u3044\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u65ad\u5c64\u72b6\u614b\u304c\u5b58\u5728\u3057\u307e\u3059\u3002 \u5fc5\u305a\u7d76\u7e01\u62b5\u6297\u8a66\u9a13\u524d\u306b\u901a\u96fb\u56de\u8def&#034;\u304c\u3042\u308a\u307e\u3059\u3002<\/p><\/blockquote>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18362\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/A-hand-operating-a-residential-electrical-circuit-breaker-panel-showing-multiple-miniature-circuit-breakers-MCBs-used-to-protect-circuits-from-overloads-and-short-circuits.webp\" alt=\"A hand operating a residential electrical circuit breaker panel showing multiple miniature circuit breakers (MCBs) used to protect circuits from overloads and short circuits\" width=\"800\" height=\"524\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/A-hand-operating-a-residential-electrical-circuit-breaker-panel-showing-multiple-miniature-circuit-breakers-MCBs-used-to-protect-circuits-from-overloads-and-short-circuits.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/A-hand-operating-a-residential-electrical-circuit-breaker-panel-showing-multiple-miniature-circuit-breakers-MCBs-used-to-protect-circuits-from-overloads-and-short-circuits-300x197.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/A-hand-operating-a-residential-electrical-circuit-breaker-panel-showing-multiple-miniature-circuit-breakers-MCBs-used-to-protect-circuits-from-overloads-and-short-circuits-768x503.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/A-hand-operating-a-residential-electrical-circuit-breaker-panel-showing-multiple-miniature-circuit-breakers-MCBs-used-to-protect-circuits-from-overloads-and-short-circuits-18x12.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/A-hand-operating-a-residential-electrical-circuit-breaker-panel-showing-multiple-miniature-circuit-breakers-MCBs-used-to-protect-circuits-from-overloads-and-short-circuits-600x393.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>\u9078\u629e\u65b9\u6cd5MCBs\u3053\u3068\u306a\u304f\u73fe\u5728\u306e\u4ed5\u69d8<\/h2>\n<h3>\u30b9\u30c6\u30c3\u30d71:\u8a08\u7b97\u6d41\u3057\u8fbc<\/h3>\n<p>\u308b\u304a\u624b\u6301\u3061\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306e\u6700\u5927\u5b66\u77ed\u7d61\u96fb\u6d41(Ipf)\u306eMCB\u306e\u5834\u6240\u3092\u5229\u7528:<\/p>\n<ul>\n<li>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u8a08\u7b97<\/li>\n<li>\u691c\u67fb\u6a5f\u5668<\/li>\n<li>\u306b\u304a\u3051\u308b\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u306e\u63d0\u4f9b\u30c7\u30fc\u30bf<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d72:\u9069\u7528\u3057\u5b89\u5168\u7387<\/h3>\n<p>\u9078\u629eMCB\u906e\u65ad\u5bb9\u91cf\u306e\u5c11\u306a\u304f\u3068\u30821.2\u500d\u304a\u7b97Ipf\u306e\u305f\u3081\u306e\u4fe1\u983c\u6027\u304a\u3088\u3073\u5c06\u6765\u306e\u30b7\u30b9\u30c6\u30e0\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d73:\u5dee\u5225\u306e\u691c\u8a3c<\/h3>\n<p>\u9069\u5207\u306a\u9023\u643a\u306e\u4e0a\u6d41\u3068\u4e0b\u6d41\u4fdd\u8b77\u88c5\u7f6e\u3092\u7528\u3044\u305f\u96fb\u6d41\u7279\u6027\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d74:\u74b0\u5883\u8981\u56e0\u306e\u691c\u8a0e<\/h3>\n<p>\u8abf\u6574\u7528\u683c:<\/p>\n<ul>\n<li>\u5468\u56f2\u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u304c30\u00b0C)<\/li>\n<li>\u9ad8\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u4e0a2000m)<\/li>\n<li>\u30b0\u30eb\u30fc\u30d7\u5316\u8981\u56e0\u306e\u305f\u3081\u306b\u8907\u6570\u306eMCBs<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d75:\u30c1\u30a7\u30c3\u30af\u30a4\u30f3\u306e\u9075\u5b88<\/h3>\n<p>\u78ba\u8a8d\u9078\u629eMCBs\u73fe\u5730\u306e\u96fb\u6c17\u30b3\u30fc\u30c9\u304a\u3088\u3073\u57fa\u6e96<\/p>\n<ul>\n<li>IEC60898\u306e\u305f\u3081\u306e\u56fd\u969b\u51fa\u9858<\/li>\n<li>UL489\u5317\u30a2\u30e1\u30ea\u30ab\u306e\u8a2d\u5099<\/li>\n<li>AS\/NZS60898\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2\/\u30cb\u30e5\u30fc\u30b8\u30fc\u30e9\u30f3\u30c9<\/li>\n<\/ul>\n<h2>\u8aa4\u89e3\u7d04MCB\u4f5c\u96fb\u6d41<\/h2>\n<h3>\u8aa41:&#034;\u9ad8\u7b49\u906e\u65ad\u5bb9\u91cf\u306b\u3064\u3044\u3066&#034;<\/h3>\n<p><strong>\u73fe\u5b9f\u306b\u306f:<\/strong> Oversizing\u906e\u65ad\u5bb9\u91cf\u59a5\u5354\u3067\u304d\u306a\u5dee\u5225\u3084\u30b3\u30b9\u30c8\u306e\u5897\u52a0\u306f\u5fc5. \u9078\u629e\u5b9f\u7e3e\u306b\u57fa\u3065\u304d\u65ad\u5c64\u6d41\u306e\u8a08\u7b97.<\/p>\n<h3>\u8aa42:&#034;\u4f5c\u308a\u73fe\u5728\u306eEquals\u7a81\u5165\u96fb\u6d41&#034;<\/h3>\n<p><strong>\u73fe\u5b9f\u306b\u306f:<\/strong> \u4f5c\u96fb\u6d41\u3068\u306f\u3001\u65ad\u5c64\u6761\u4ef6\u3001\u7a81\u5165\u96fb\u6d41\u304c\u767a\u751f\u3057\u305f\u901a\u5e38\u306e\u6a5f\u5668\u306b\u901a\u96fb.<\/p>\n<h3>\u8aa43:&#034;\u3059\u3079\u3066\u306eMCBs\u3044\u3066\u540c\u3058\u3068\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002\u65ad\u6bd4\u7387&#034;<\/h3>\n<p><strong>\u73fe\u5b9f\u306b\u306f:<\/strong> \u304cIEC\u898f\u683c\u3067\u898f\u5b9a\u306e\u6700\u4f4e\u6bd4\u7387\u306f\u3001\u30d7\u30ec\u30df\u30a2\u30e0MCBs\u3092\u8d85\u3048\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3053\u308c\u3089\u306e\u8981\u6c42\u4e8b\u9805\u3092\u9069\u7528\u3059\u308b\u3002<\/p>\n<h2>\u30d7\u30ed\u306e\u8a2d\u7f6e\u4f8b<\/h2>\n<h3>\u30d7\u30ec\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306e\u691c\u8a3c<\/h3>\n<ul>\n<li>\u78ba\u8a8d\u8005\u5c64\u306e\u96fb\u6d41\u6e2c\u5b9a<\/li>\n<li>\u78ba\u8a8dMCB\u683c\u8a66\u5408\u30c7\u30b6\u30a4\u30f3\u4ed5\u69d8<\/li>\n<li>\u30c1\u30a7\u30c3\u30af\u306e\u305f\u3081\u306e\u9069\u5207\u306a\u30c8\u30eb\u30af\u4ed5\u69d8<\/li>\n<\/ul>\n<h3>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6642\u306b<\/h3>\n<ul>\n<li>\u5229\u7528\u6821\u6b63\u3055\u308c\u305f\u30c8\u30eb\u30af\u30ec\u30f3\u30c1\u3092\u63a5\u7d9a\u3059\u308b<\/li>\n<li>\u7dad\u6301\u304c\u6b63\u3057\u3044\u6bb5\u968e\u306e\u9593\u9694<\/li>\n<li>\u30c8\u306e\u9069\u5207\u306a\u5f27\u3092\u5c01\u3058\u8fbc\u3081\u969c\u58c1<\/li>\n<\/ul>\n<h3>\u5f8c\u306e\u8a66\u9a13<\/h3>\n<ul>\n<li>\u3092\u884c\u3046\u7d76\u7e01\u62b5\u6297\u8a66\u9a13<\/li>\n<li>\u78ba\u8a8d\u306e\u65c5\u884c\u7279\u6027\u3092\u6ce8\u5165\u8a66\u9a13<\/li>\n<li>\u6587\u66f8\u306e\u3059\u3079\u3066\u306e\u8a66\u9a13\u7d50\u679c\u306e\u305f\u3081\u306e\u9075\u5b88<\/li>\n<\/ul>\n<blockquote><p><strong>\u5c02\u9580\u5bb6\u306b\u30d2\u30f3\u30c8:<\/strong> \u73fe\u4ee3MCB\u306e\u30c7\u30b6\u30a4\u30f3\u3092\u73fe\u5728\u306e\u5236\u9650\u3092\u524a\u6e1b\u3059\u308b\u6280\u8853\u306e\u4e21\u3066\u3044\u308b\u3053\u3068\u304c\u30b9\u30c8\u30ec\u30b9\u3001\u904b\u547d\u3092\u8d85\u3048\u308b\u6761\u4ef6\u3067\u3059\u3002<\/p><\/blockquote>\n<h2>\u30af\u30a4\u30c3\u30af-\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30ac\u30a4\u30c9:MCB\u9078\u629e\u306a\u304f\u73fe\u5728\u306e\u30c7\u30fc\u30bf<\/h2>\n<p><strong>\u4f4f\u5b85\u8a2d\u5099:<\/strong><\/p>\n<ul>\n<li>\u6700\u7d42\u56de\u8def6kA\u906e\u65ad\u5bb9\u91cf\u306e\u6700\u5c0f<\/li>\n<li>\u5206\u96fb\u76e4:10kA\u5178\u578b\u7684\u306a<\/li>\n<li>\u30e1\u30a4\u30f3\u30b9\u30a4\u30c3\u30c1\u306b\u57fa\u3065\u304f\u5149\u65ad\u5c64\u30ec\u30d9\u30eb<\/li>\n<\/ul>\n<p><strong>\u5546\u696d\u65bd\u8a2d:<\/strong><\/p>\n<ul>\n<li>\u7167\u660e\u56de\u8def6-10kA<\/li>\n<li>\u96fb\u6e90\u56de\u8def:10-15kA<\/li>\n<li>\u30e1\u30a4\u30f3\u5206\u5e03:15-25kA<\/li>\n<\/ul>\n<p><strong>\u7523\u696d\u7528\u9014\uff1a<\/strong><\/p>\n<ul>\n<li>\u5236\u5fa1\u56de\u8def10kA\u6700\u5c0f<\/li>\n<li>\u30e2\u30fc\u30bf\u30fc\u56de\u8def:15-25kA<\/li>\n<li>\u4e3b\u914d\u96fb\u76e4:25-50kA<\/li>\n<\/ul>\n<h2>FAQ:MCB\u4f5c\u73fe\u5728\u306e\u554f\u984c<\/h2>\n<h3>\u3069\u306e\u3088\u3046\u306a\u773a\u3081\u304cMCB\u4f5c\u96fb\u6d41\u306e\u306a\u3044\u6307\u5b9a\u3067\u304d\u307e\u3059\u304b\u3002<\/h3>\n<p>\u306e\u906e\u65ad\u5bb9\u91cf(Ic\u53c8\u306f\u56fd\u969b\u57fa\u7763\u6559\u5927\u5b66\uff08Icu\uff09\u683c\u4ed8\u3051\u306f\u3001\u81ea\u52d5\u7684\u306b\u5341\u5206\u306b\u78ba\u4fdd\u9014IEC\u3002 \u306e\u80fd\u529b\u304c\u3042\u308b\u3068\u4e88\u60f3\u3055\u308c\u3066\u3044\u308b2.1-2.2\u500d\u3067\u3059\u3002<\/p>\n<h3>\u3069\u306e\u3088\u3046\u306a\u4f5c\u96fb\u6d41\u306b\u306f\u5f71\u97ff\u3057MCB\u306e\u9078\u629e\u306e\u305f\u3081\u306e\u592a\u967d\u5149\u767a\u96fb\u8a2d\u5099?<\/h3>\n<p>\u592a\u967d\u5149\u767a\u96fb\u8a2d\u5099\u3092\u5fc5\u8981\u3068\u3057MCBs\u5b9a\u683cDC\u7528\u9014\u306b\u9069\u5207\u306a\u906e\u65ad\u5bb9\u91cf\u6700\u5927\u9650\u306e\u30b7\u30b9\u30c6\u30e0\u969c\u5bb3\u307e\u3059\u3002 DC\u4f5c\u96fb\u6d41\u3092\u8003\u616e\u3057\u3066\u3088\u308a\u91cd\u8981\u306b\u306a\u81ea\u7136\u73fe\u5728\u306e\u30bc\u30ed\u306e\u307e\u307e\u306b\u3057\u3066\u304a<\/p>\n<h3>\u306a\u305c\u3042\u308b\u7523\u696dMCBs\u3082\u6c7a\u80fd\u529b\u3002<\/h3>\n<p>\u7279\u6b8a\u7523\u696dMCBs\u3001\u7279\u306b\u4e0a\u8a18100A\u307e\u305f\u306f\u5f37\u5316\u906e\u65ad\u5bb9\u91cf\u306f\u3001\u30ea\u30b9\u30c8\u4f5c\u6210\u80fd\u529b\u3092\u8d85\u3048\u305f\u6642\u306b\u3001\u6a19\u6e96\u6bd4\u7387\u306e\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u5206\u6790\u3057\u305f\u3002<\/p>\n<h3>\u3067MCB\u304f\u3092\u6d41\u4ee5\u4e0a\u3001\u305d\u306e\u7834\u58ca\u304c\u5fc5\u8981\u3067\u3059\u3002<\/h3>\n<p>\u3042\u308a\u3001MCB\u3067\u4e00\u77ac\u306b\u8010\u3048\u308b\u4f5c\u96fb\u6d41\u6700\u59272.2\u500d\u306e\u906e\u65ad\u5bb9\u91cf\u304c\u306a\u3044\u5834\u5408\u306b\u6210\u529f\u3057\u3001\u56de\u8def\u3001\u6f5c\u5728\u7684\u306b\u7834\u58ca\u6ec5\u5931\u6557\u3002<\/p>\n<h3>\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u6559\u3048\u3066\u304f\u3060\u3055\u3044MCB\u3068MCCB\u4f5c\u308a\u306e\u73fe\u5728\u3060\u3051\u3067\u3059\u304b\uff1f<\/h3>\n<p>MCCBs(\u6210\u5f62\u306e\u5834\u5408\u306e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc)\u304c\u6307\u5b9a\u306e\u4f5c\u80fd\u529b\u5225\u306a\u3069\u306e\u898b\u6240\u9ad8\u96fb\u6d41\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6a19\u6e96\u6bd4\u7387\u304c\u9069\u7528\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u5747\u4e00.<\/p>\n<h3>\u304d\u3092\u898b\u308b\u3053\u3068\u304c\u73fe\u5728\u306e\u8abf\u6574\u3092\u3059\u308b\u3068\u304d\u306b\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9?<\/h3>\n<p>\u306a\u304c\u3089\u3001\u73fe\u5728\u3093\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u5dee\u5225\u306e\u7406\u89e3\u6d41\u306e\u975e\u5bfe\u79f0\u6027\u3092\u9069\u5207\u306b\u8abf\u6574\u4e2d\u306e\u6700\u60aa\u306e\u30b7\u30ca\u30ea\u30aa.<\/p>\n<h3>\u3069\u306e\u3088\u3046\u306a\u73fe\u4ee3MCBs\u53d6\u6271\u3044\u4f5c\u96fb\u6d41\u306a\u3093\u3067\u3059\u3002<\/h3>\n<p>\u9023\u7d61\u5148\u7aef\u6750\u6599\u306e\u6700\u9069\u5316\u63a5\u89e6\u5f62\u72b6\u3001\u78c1\u6c17\u5439\u304d\u51fa\u3057\u30b7\u30b9\u30c6\u30e0\u306f\u73fe\u4ee3MCBs\u306b\u8010\u3048\u308b\u4f5c\u96fb\u6d41\u30b9\u30c8\u30ec\u30b9\u3092\u7dad\u6301\u3057\u3064\u3064\u9577\u5bff\u547d\u5316\u304c\u56f3\u308c\u307e\u3059.<\/p>\n<h3>\u3053MCB\u306e\u4f5c\u6210\u80fd\u529b\u3092\u8d85\u3048\u305f?<\/h3>\n<p>\u3092\u8d85\u3048\u308b\u4f5c\u80fd\u529b\u306e\u539f\u56e0\u306b\u306a\u308a\u63a5\u89e6\u6eb6\u63a5\u3001\u6a5f\u68b0\u7684\u640d\u5bb3\u3001\u307e\u305f\u306f\u7206\u767a\u7684\u306a\u6545\u969c\u3067\u3059\u3002 \u305d\u306e\u9069\u6b63\u306a\u6d41\u306e\u8a55\u4fa1\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>\u7d50\u8ad6:\u89e3MCB\u4f5c\u96fb\u6d41\u306e\u305f\u3081\u306e\u5b89\u5168\u8a2d\u5099<\/h2>\n<p>MCBs\u3068\u3044\u3046\u8a00\u8449\u306f\u4f7f\u3063\u3066\u3044\u306a\u3044\u3082\u306e\u77ed\u7d61\u3092\u4f5c\u308a\u3067\u56fd\u969b\u57fa\u6e96\u306b\u6e96\u62e0MCB\u306f\u6c7a\u80fd\u529b2.1-2.2\u500d\u306b\u8a18\u8f09\u306e\u7834\u308c\u307e\u3059\u3002 \u3053\u306e\u6a19\u6e96\u5316\u304c\u5bb9\u6613\u9078\u5b9a\u3092\u7dad\u6301\u3057\u3064\u3064\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u6700\u60aa\u6545\u969c\u307e\u3059\u3002<\/p>\n<p>\u3092\u9078\u629e\u3059\u308b\u3068MCBs\u306b\u57fa\u3065\u304f\u906e\u65ad\u5bb9\u91cf\u3092\u8d85\u3048\u308b\u8a08\u7b97\u5b66\u6d41\u306b\u306f\u3001\u81ea\u52d5\u7684\u306b\u9069\u6b63\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306e\u6c7a\u307e\u3059\u3002 \u6b63\u78ba\u6d41\u8a55\u4fa1\u3001\u9069\u5207\u306a\u8abf\u6574\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u5730\u57df\u306e\u96fb\u6c17\u30b3\u30fc\u30c9\u3001\u5b89\u5168\u3067\u4fe1\u983c\u6027\u8a2d<\/p>\n<h2>\u95a2\u9023<\/h2>\n<p><a href=\"https:\/\/test.viox.com\/ja\/what-is-a-miniature-circuit-breaker-mcb\/\">\u4f55\u304c\u30df\u30cb\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30abMCB):\u5b8c\u5168\u30ac\u30a4\u30c9\u306e\u5b89\u5168\u6027\u304a\u3088\u3073\u9078\u629e<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/ja\/why-circuit-breakers-dont-protect-people\/\">\u306a\u305c\u906e\u65ad\u5668\u306a\u4fdd\u8b77\u306e\u91cd\u8981\u4fdd\u5b89\u5b9f\u6bce\u306b\u81ea\u5bb6\u6240\u6709\u77e5\u3089\u306a\u3051\u308c\u3070\u306a\u3089\u306a<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/ja\/short-circuit-vs-earth-fault-vs-overload-which-electrical-fault-is-most-dangerous\/\">\u77ed\u7d61vs\u5730\u7403\u65ad\u5c64vs\u8ca0\u8377:\u96fb\u6c17\u306e\u5c64\u304c\u6700\u3082\u5371\u967a?<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Direct Answer: MCBs (Miniature Circuit Breakers) don&#8217;t mention short circuit making current because they&#8217;re designed with inherent making capacity that exceeds their breaking capacity by a standard factor of 2.1 to 2.2, as mandated by IEC 60898 standards. This built-in safety margin means manufacturers only need to specify the breaking capacity (Ics\/Icu), as the making capacity is automatically guaranteed to handle the asymmetrical fault currents during circuit closure. VIOX MCB Understanding MCB Making Current vs Breaking Current When you&#8217;re selecting MCBs for your electrical installation, you&#8217;ll notice specifications list breaking capacity but mysteriously omit making current ratings. This isn&#8217;t an oversight\u2014it&#8217;s intentional engineering design that simplifies selection while ensuring safety. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19099,"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-19098","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\/19098","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=19098"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/19098\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media\/19099"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media?parent=19098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/categories?post=19098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/tags?post=19098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}