{"id":50645,"date":"2026-04-10T04:06:10","date_gmt":"2026-04-10T04:06:10","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=50645"},"modified":"2026-04-10T04:17:43","modified_gmt":"2026-04-10T04:17:43","slug":"why-do-circuit-breakers-trip","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/","title":{"rendered":"\u56de\u8def\u906e\u65ad\u5668\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\u3068\u306f\uff1f"},"content":{"rendered":"<p>\u983b\u7e41\u306b\u906e\u65ad\u5668\u304c\u4f5c\u52d5\u3059\u308b\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u6f5c\u5728\u7684\u306a\u30ea\u30b9\u30af\u304c\u5b58\u5728\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u305c\u906e\u65ad\u5668\u306f\u4f5c\u52d5\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u96fb\u6c17\u6280\u8853\u8005\u3084\u30b7\u30b9\u30c6\u30e0\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30bf\u30fc\u304c\u906e\u65ad\u5668\u306e\u4f5c\u52d5\u539f\u56e0\u3092\u7406\u89e3\u3057\u3001\u6545\u969c\u72b6\u614b\u3092\u8a3a\u65ad\u3059\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u76ee\u6b21\u3092\u5207\u308a\u66ff\u3048\u308b\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u30c8\u30b0\u30eb<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Main_Causes_of_Circuit_Breaker_Trips\" >\u56de\u8def\u906e\u65ad\u5668\u304c\u4f5c\u52d5\u3059\u308b\u4e3b\u306a\u539f\u56e0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Overloaded_Circuit\" >\u56de\u8def\u306e\u904e\u8ca0\u8377<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Short_Circuit\" >\u77ed\u7d61<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Ground_Faults\" >\u5730\u7d61<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Additional_Causes_of_Tripping_Circuit_Breakers\" >\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u305d\u306e\u4ed6\u306e\u539f\u56e0<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Equipment_Failure\" >\u6a5f\u5668\u306e\u6545\u969c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Power_Surges\" >\u96fb\u529b\u30b5\u30fc\u30b8<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Aging_or_Poor_Circuit_Breaker\" >\u8001\u673d\u5316\u307e\u305f\u306f\u4e0d\u826f\u306e\u56de\u8def\u906e\u65ad\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Incorrect_Breaker_Selection\" >\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u629e\u304c\u9593\u9055\u3063\u3066\u3044\u307e\u3059<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#How_to_Diagnose_a_Breaker_that_Keeps_Tripping\" >\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u5834\u5408\u306e\u8a3a\u65ad\u65b9\u6cd5\u306f\uff1f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Identify_the_Tripping_Pattern\" >\u30c8\u30ea\u30c3\u30d4\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3\u3092\u7279\u5b9a\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Verify_Your_Load_Conditions\" >\u7a4d\u8f09\u6761\u4ef6\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Isolate_the_Circuit\" >\u56de\u8def\u3092\u5206\u96e2\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Inspect_Wiring_and_Connections\" >\u914d\u7dda\u3068\u63a5\u7d9a\u90e8\u3092\u70b9\u691c\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Check_for_Short_CircuitGround_Fault\" >\u77ed\u7d61\/\u5730\u7d61\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#FAQ\" >\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Can_a_Circuit_Breaker_Trip_Even_if_There_is_No_Obvious_Fault\" >\u660e\u3089\u304b\u306a\u6545\u969c\u304c\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u3053\u3068\u306f\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Is_It_Dangerous_If_a_Circuit_Breaker_Keeps_Tripping\" >\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u4f5c\u52d5\u3059\u308b\u306e\u306f\u5371\u967a\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#How_Do_You_Prevent_Nuisance_Tripping_in_Industrial_Systems\" >\u7523\u696d\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u4e0d\u8981\u306a\u30c8\u30ea\u30c3\u30d7\u3092\u9632\u6b62\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Can_a_Faulty_Appliance_Cause_a_Circuit_Breaker_to_Trip\" >\u6545\u969c\u3057\u305f\u96fb\u5316\u88fd\u54c1\u304c\u539f\u56e0\u3067\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#When_Should_You_Replace_a_Circuit_Breaker\" >\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3044\u3064\u4ea4\u63db\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/#Final_Thought\" >\u6700\u5f8c\u306b<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Main_Causes_of_Circuit_Breaker_Trips\"><\/span>\u56de\u8def\u906e\u65ad\u5668\u304c\u4f5c\u52d5\u3059\u308b\u4e3b\u306a\u539f\u56e0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50649\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Main-Causes-of-Circuit-Breaker-Trips.jpg\" alt=\"\u56de\u8def\u906e\u65ad\u5668\u304c\u4f5c\u52d5\u3059\u308b\u4e3b\u306a\u539f\u56e0\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Main-Causes-of-Circuit-Breaker-Trips.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Main-Causes-of-Circuit-Breaker-Trips-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Main-Causes-of-Circuit-Breaker-Trips-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Main-Causes-of-Circuit-Breaker-Trips-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>\u96fb\u6c17\u7684\u6761\u4ef6\u304c\u5b89\u5168\u306a\u52d5\u4f5c\u6761\u4ef6\u3092\u8d85\u3048\u308b\u3068\u3001 <a href=\"https:\/\/www.kdmsteel.com\/ja\/\u9759\u7684\u76f4\u6d41\u906e\u65ad\u5668\/\">\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<\/a> \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3057\u307e\u3059\u3002\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u7406\u7531\u306f\u69d8\u3005\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u72b6\u6cc1\u306b\u3088\u3063\u3066\u3001\u539f\u56e0\u3001\u6319\u52d5\u3001\u30ea\u30b9\u30af\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u539f\u56e0\u3092\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Overloaded_Circuit\"><\/span>\u56de\u8def\u306e\u904e\u8ca0\u8377<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u56de\u8def\u306e\u904e\u8ca0\u8377\u306f\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u539f\u56e0\u306e\u4e00\u3064\u3067\u3059\u3002\u904e\u8ca0\u8377\u3068\u306f\u3001\u56de\u8def\u3092\u6d41\u308c\u308b\u5b9f\u969b\u306e\u96fb\u6d41\u304c\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u96fb\u6d41\u3092\u8d85\u3048\u308b\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u5185\u90e8\u306e\u71b1\u7d20\u5b50\u304c\u904e\u71b1\u3057\u3066\u5909\u5f62\u3057\u3001\u6700\u7d42\u7684\u306b\u906e\u65ad\u6a5f\u69cb\u304c\u4f5c\u52d5\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u56de\u8def\u904e\u8ca0\u8377\u306e\u4e00\u822c\u7684\u306a\u539f\u56e0\u306b\u306f\u3001<\/strong>:<\/p>\n<ul>\n<li>\u540c\u3058\u56de\u7dda\u306b\u5927\u578b\u6a5f\u5668\u3092\u591a\u6570\u63a5\u7d9a\u3059\u308b\u3068\u3001\u7dcf\u96fb\u6d41\u304c\u5236\u9650\u5024\u3092\u8d85\u3048\u3066\u3057\u307e\u3046\u3002.<\/li>\n<li>\u751f\u7523\u30e9\u30a4\u30f3\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u6642\u306b\u3001\u5b9f\u969b\u306e\u8ca0\u8377\u8981\u4ef6\u3092\u8a08\u7b97\u305b\u305a\u306b\u3001\u9ad8\u51fa\u529b\u6a5f\u5668\u3092\u53e4\u3044\u56de\u8def\u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u3053\u3068\u3002.<\/li>\n<li>\u96fb\u6c17\u5bb9\u91cf\u9650\u754c\u306b\u8fd1\u3044\u9023\u7d9a\u904b\u8ee2\u3002.<\/li>\n<li>\u4e09\u76f8\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u3001\u5358\u76f8\u8ca0\u8377\u304c\u4e0d\u5747\u7b49\u306b\u5206\u6563\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u3044\u305a\u308c\u304b\u306e\u76f8\u306e\u96fb\u6d41\u304c\u6025\u6fc0\u306b\u5897\u52a0\u3057\u307e\u3059\u3002\u7dcf\u96fb\u529b\u304c\u5909\u5727\u5668\u306e\u5bb9\u91cf\u3092\u8d85\u3048\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u904e\u8ca0\u8377\u306b\u3088\u308a\u305d\u306e\u76f8\u306e\u906e\u65ad\u5668\u304c\u4f5c\u52d5\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u3068\u30b1\u30fc\u30d6\u30eb\u306e\u5b9a\u683c\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u3082\u3001\u30c8\u30ea\u30c3\u30d7\u3084\u706b\u707d\u306e\u539f\u56e0\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p><strong>\u56de\u8def\u904e\u8ca0\u8377\u306e\u5146\u5019<\/strong>:<\/p>\n<ul>\n<li>\u70b9\u6ec5\u3059\u308b\u30e9\u30a4\u30c8<\/li>\n<li>\u30b3\u30f3\u30bb\u30f3\u30c8\u3084\u914d\u7dda\u306e\u904e\u71b1<\/li>\n<li>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u7e70\u308a\u8fd4\u3057\u4f5c\u52d5\u3059\u308b<\/li>\n<\/ul>\n<p><strong>\u56de\u8def\u904e\u8ca0\u8377\u306e\u30ea\u30b9\u30af<\/strong>:<\/p>\n<ul>\n<li>\u983b\u7e41\u306a\u906e\u65ad\u306f\u5c0e\u4f53\u5185\u90e8\u306e\u71b1\u84c4\u7a4d\u3092\u62db\u304d\u3001\u7d76\u7e01\u6027\u80fd\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/li>\n<li>\u958b\u9589\u88c5\u7f6e\u3084\u30b1\u30fc\u30d6\u30eb\u306e\u904e\u71b1\u306f\u706b\u707d\u306e\u539f\u56e0\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Short_Circuit\"><\/span>\u77ed\u7d61<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u77ed\u7d61\u6545\u969c\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u6d3b\u7dda\u3068\u4e2d\u6027\u7dda\u306e\u9593\u306b\u4f4e\u62b5\u6297\u56de\u8def\u304c\u5f62\u6210\u3055\u308c\u3001\u7a81\u767a\u7684\u304b\u3064\u6975\u3081\u3066\u9ad8\u3044\u96fb\u6d41\u30b5\u30fc\u30b8\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u5185\u306e\u96fb\u78c1\u30e9\u30c3\u30c1\u304c\u77ac\u6642\u306b\u4f5c\u52d5\u3057\u307e\u3059\u3002\u77ed\u7d61\u306f\u6700\u3082\u5371\u967a\u306a\u6545\u969c\u3067\u3042\u308a\u3001\u8fc5\u901f\u306a\u7279\u5b9a\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n<p><strong>\u77ed\u7d61\u306e\u539f\u56e0<\/strong>:<\/p>\n<ul>\n<li>\u7d76\u7e01\u4f53\u306e\u640d\u50b7\u307e\u305f\u306f\u52a3\u5316\uff1a\u30b1\u30fc\u30d6\u30eb\u304c\u9577\u671f\u9593\u306e\u6a5f\u68b0\u7684\u5727\u7e2e\u3084\u632f\u52d5\u306b\u3088\u308b\u6469\u8017\u306b\u3055\u3089\u3055\u308c\u308b\u3068\u3001\u76f8\u7dda\u3068\u4e2d\u6027\u7dda\uff0f\u63a5\u5730\u7dda\u304c\u76f4\u63a5\u63a5\u89e6\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li>\u7aef\u5b50\u63a5\u7d9a\u90e8\u306e\u7de9\u307f\u306f\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u767a\u71b1\u30fb\u9178\u5316\u3057\u3001\u6700\u7d42\u7684\u306b\u76f8\u9593\u77ed\u7d61\u3084\u5730\u7d61\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306f\u5236\u5fa1\u76e4\u3067\u975e\u5e38\u306b\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u3002.<\/li>\n<li>\u6a5f\u5668\u5185\u90e8\u306e\u6545\u969c\u306f\u3001\u6a5f\u5668\u8d77\u52d5\u6642\u306b\u5373\u5ea7\u306b\u30c8\u30ea\u30c3\u30d7\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30e2\u30fc\u30bf\u30fc\u5dfb\u7dda\u306e\u6545\u969c\u3084\u30d0\u30e9\u30b9\u30c8\u306e\u640d\u50b7\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p><strong>\u77ed\u7d61\u306e\u5146\u5019\uff1a<\/strong><\/p>\n<ul>\n<li>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u30ea\u30bb\u30c3\u30c8\u76f4\u5f8c\u306b\u4f5c\u52d5\u3059\u308b\u3002.<\/li>\n<li>\u30b3\u30f3\u30bb\u30f3\u30c8\u304b\u3089\u30d6\u30fc\u30f3\u3068\u3044\u3046\u97f3\u304c\u3059\u308b\u3002.<\/li>\n<li>\u96fb\u6c17\u90e8\u54c1\u306b\u7126\u3052\u8de1\u3084\u9ed2\u305a\u307f\u304c\u898b\u3089\u308c\u308b\u3002.<\/li>\n<li>\u30b3\u30f3\u30bb\u30f3\u30c8\u4ed8\u8fd1\u304b\u3089\u7126\u3052\u305f\u3088\u3046\u306a\u3001\u3042\u308b\u3044\u306f\u523a\u6fc0\u81ed\u304c\u3059\u308b\u3002.<\/li>\n<\/ul>\n<p><strong>\u77ed\u7d61\u306e\u30ea\u30b9\u30af<\/strong>:<\/p>\n<ul>\n<li>\u9ad8\u3044\u6545\u969c\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\u3001\u6a5f\u5668\u306b\u6df1\u523b\u306a\u640d\u50b7\u3092\u4e0e\u3048\u308b\u3002.<\/li>\n<li>\u3053\u308c\u306f\u30a2\u30fc\u30af\u30d5\u30e9\u30c3\u30b7\u30e5\u306e\u5371\u967a\u6027\u3092\u62db\u304d\u3001\u4f5c\u696d\u54e1\u306b\u6df1\u523b\u306a\u30ea\u30b9\u30af\u3092\u3082\u305f\u3089\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/li>\n<li>\u5de5\u696d\u74b0\u5883\u3067\u306f\u3001\u706b\u707d\u3084\u7206\u767a\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/li>\n<li>\u751f\u7523\u505c\u6b62\u3084\u9ad8\u984d\u306a\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304c\u767a\u751f\u3059\u308b\u3060\u308d\u3046\u3002.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Ground_Faults\"><\/span>\u5730\u7d61<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5730\u7d61\u306f\u901a\u5e38\u3001\u901a\u96fb\u4e2d\u306e\u5c0e\u4f53\u304b\u3089\u5927\u5730\u306b\u96fb\u6d41\u304c\u6d41\u308c\u308b\u3068\u304d\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u5730\u7d61\u4fdd\u8b77\u88c5\u7f6e\uff08GFIC\u3001RCD\u3001RCCB\u3001RCBO\uff09\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u6d3b\u7dda\u3068\u4e2d\u6027\u7dda\u306e\u9593\u306e\u4e0d\u5747\u8861\u306a\u96fb\u6d41\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002\u3054\u304f\u308f\u305a\u304b\u306a\u6f0f\u6d29\u96fb\u6d41\u3067\u3082\u906e\u65ad\u88c5\u7f6e\u304c\u4f5c\u52d5\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p>\u30d2\u30f3\u30c8\uff1a\u901a\u5e38\u306e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u5730\u7d61\u306b\u3088\u3063\u3066\u4f5c\u52d5\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p><strong>\u5730\u7d61\u4e8b\u6545\u306e\u4e00\u822c\u7684\u306a\u539f\u56e0<\/strong>:<\/p>\n<ul>\n<li>\u30b1\u30fc\u30d6\u30eb\u306e\u7d76\u7e01\u4f53\u304c\u640d\u50b7\u3057\u3066\u3044\u308b<\/li>\n<li>\u6c34\u306e\u6d78\u5165 <a href=\"https:\/\/www.kdmsteel.com\/ja\/\u96fb\u6c17\u7b50\u4f53\/\u5927\u578b\u96fb\u6c17\u7b50\u4f53\/\">\u96fb\u6c17\u7b50\u4f53<\/a><\/li>\n<li>\u6a5f\u5668\u7b50\u4f53\u306e\u640d\u50b7<\/li>\n<li>\u6a5f\u5668\u304c\u7c89\u5875\u3084\u5316\u5b66\u7269\u8cea\u3067\u6c5a\u67d3\u3055\u308c\u3066\u3044\u308b<\/li>\n<li>\u914d\u7dda\u63a5\u7d9a\u90e8\u304c\u9069\u5207\u306b\u5727\u7740\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3001\u7d76\u7e01\u5c64\u304c\u7aef\u5b50\u306b\u62bc\u3057\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p><strong>\u5730\u7d61\u306e\u5146\u5019<\/strong>:<\/p>\n<ul>\n<li>\uff08\u6f0f\u96fb\u906e\u65ad\u5668\u3092\u8a2d\u7f6e\u3057\u305f\u5834\u5408\uff09\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u65ad\u7d9a\u7684\u306b\u4f5c\u52d5\u3059\u308b\u3001\u307e\u305f\u306f\uff08\u6a19\u6e96\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5834\u5408\uff09\u4e88\u6e2c\u4e0d\u80fd\u306b\u4f5c\u52d5\u3059\u308b\u3002<\/li>\n<li>\u6e7f\u5ea6\u306e\u9ad8\u3044\u74b0\u5883\u3067\u306f\u3001\u63a5\u5730\u4e0d\u826f\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<li>\u7279\u5b9a\u306e\u6a5f\u5668\u306e\u96fb\u6e90\u3092\u5165\u308c\u305f\u3068\u304d\u306b\u30c8\u30ea\u30c3\u30d7\u304c\u767a\u751f\u3057\u307e\u3059<\/li>\n<\/ul>\n<p><strong>\u5730\u7d61\u4e8b\u6545\u306e\u30ea\u30b9\u30af<\/strong>:<\/p>\n<ul>\n<li>\u5730\u7d61\u306f\u3001\u4f5c\u696d\u54e1\u306b\u611f\u96fb\u4e8b\u6545\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u975e\u5e38\u306b\u9ad8\u3044\u3002.<\/li>\n<li>\u305d\u308c\u306f\u74b0\u5883\u30ea\u30b9\u30af\u306e\u30ec\u30d9\u30eb\u3092\u9ad8\u3081\u308b\u3060\u308d\u3046\u3002.<\/li>\n<li>\u30b1\u30fc\u30d6\u30eb\u306e\u7d76\u7e01\u4f53\u3092\u640d\u50b7\u3057\u307e\u3059\u3002.<\/li>\n<li>\u4e8b\u614b\u306f\u5b8c\u5168\u306a\u30b7\u30e7\u30fc\u30c8\u56de\u8def\u3078\u3068\u30a8\u30b9\u30ab\u30ec\u30fc\u30c8\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Additional_Causes_of_Tripping_Circuit_Breakers\"><\/span>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u305d\u306e\u4ed6\u306e\u539f\u56e0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50654\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Additional-Causes-of-Tripping-Circuit-Breakers.jpg\" alt=\"\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u305d\u306e\u4ed6\u306e\u539f\u56e0\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Additional-Causes-of-Tripping-Circuit-Breakers.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Additional-Causes-of-Tripping-Circuit-Breakers-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Additional-Causes-of-Tripping-Circuit-Breakers-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Additional-Causes-of-Tripping-Circuit-Breakers-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Equipment_Failure\"><\/span>\u6a5f\u5668\u306e\u6545\u969c<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u56de\u8def\u306b\u63a5\u7d9a\u3055\u308c\u305f\u96fb\u6c17\u6a5f\u5668\u5185\u90e8\u3067\u6545\u969c\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u7570\u5e38\u306a\u96fb\u6d41\u304c\u6d41\u308c\u305f\u308a\u3001\u6f0f\u96fb\u7d4c\u8def\u304c\u751f\u3058\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/p>\n<p>\u30e2\u30fc\u30bf\u30fc\u5dfb\u7dda\u306e\u7d76\u7e01\u4e0d\u826f\u3001\u5909\u5727\u5668\u306e\u6545\u969c\u3001\u8001\u673d\u5316\u3057\u305f\u7523\u696d\u6a5f\u5668\u306a\u3069\u306f\u3001\u3044\u305a\u308c\u3082\u70b9\u691c\u3059\u3079\u304d\u91cd\u8981\u306a\u7b87\u6240\u3067\u3059\u3002\u65e9\u671f\u767a\u898b\u306f\u3001\u4e88\u671f\u305b\u306c\u505c\u6b62\u306b\u3088\u308b\u6a5f\u5668\u306e\u640d\u50b7\u3084\u640d\u5931\u3092\u9632\u3050\u3053\u3068\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Power_Surges\"><\/span>\u96fb\u529b\u30b5\u30fc\u30b8<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u96fb\u529b\u30b5\u30fc\u30b8\u306f\u96fb\u5727\u3092\u6025\u6fc0\u306b\u4e0a\u6607\u3055\u305b\u3001\u7570\u5e38\u306a\u96fb\u6d41\u306e\u6d41\u308c\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u7d50\u679c\u3068\u3057\u3066\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u52d5\u4f5c\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u307e\u3059\u3002\u30b5\u30fc\u30b8\u306f\u843d\u96f7\u3001\u30b0\u30ea\u30c3\u30c9\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u64cd\u4f5c\u3001\u307e\u305f\u306f\u5927\u578b\u6a5f\u5668\u306e\u958b\u9589\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u96fb\u6c17\u90e8\u54c1\u306e\u6bb5\u968e\u7684\u306a\u52a3\u5316\/\u6545\u969c\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u901a\u5e38\u3001\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059 <a href=\"https:\/\/www.kdmsteel.com\/ja\/1500\u30dc\u30eb\u30c8dc\u30b5\u30fc\u30b8\u30d7\u30ed\u30c6\u30af\u30bf\u30fc\/\">\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e<\/a> \u3053\u308c\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u3002.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Aging_or_Poor_Circuit_Breaker\"><\/span>\u8001\u673d\u5316\u307e\u305f\u306f\u4e0d\u826f\u306e\u56de\u8def\u906e\u65ad\u5668<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u56de\u8def\u906e\u65ad\u5668\u306e\u4fe1\u983c\u6027\u306f\u3001\u7d4c\u5e74\u52a3\u5316\u3084\u6a5f\u68b0\u7684\u6469\u8017\u306b\u3088\u3063\u3066\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u7e70\u308a\u8fd4\u3057\u306e\u30c8\u30ea\u30c3\u30d7\u3001\u8150\u98df\u3001\u6c5a\u67d3\u3001\u304a\u3088\u3073\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e0d\u8db3\u306f\u3059\u3079\u3066\u3001\u56de\u8def\u906e\u65ad\u5668\u306e\u4fe1\u983c\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u307e\u3059\u3002\u6027\u80fd\u304c\u4f4e\u4e0b\u3057\u305f\u3001\u307e\u305f\u306f\u8001\u673d\u5316\u3057\u305f\u56de\u8def\u906e\u65ad\u5668\u306f\u3001\u4fdd\u8b77\u7cbe\u5ea6\u304c\u4f4e\u4e0b\u3057\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u5897\u52a0\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Incorrect_Breaker_Selection\"><\/span>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u629e\u304c\u9593\u9055\u3063\u3066\u3044\u307e\u3059<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u96fb\u6d41\u5bb9\u91cf\u306e\u904e\u5c0f\u8a55\u4fa1\u3001\u906e\u65ad\u5bb9\u91cf\u306e\u4e0d\u8db3\u3001\u307e\u305f\u306f\u4ed6\u306e\u4fdd\u8b77\u88c5\u7f6e\u3068\u306e\u9023\u643a\u4e0d\u826f\u306f\u3001\u3088\u304f\u3042\u308b\u554f\u984c\u3067\u3059\u3002\u4e0d\u9069\u5207\u306a\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u56de\u8def\u306e\u5b9f\u969b\u306e\u52d5\u4f5c\u6761\u4ef6\u306b\u5408\u81f4\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e0a\u6d41\u5074\u3067\u4e0d\u8981\u306a\u30c8\u30ea\u30c3\u30d7\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u904b\u7528\u52b9\u7387\u304c\u4f4e\u4e0b\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Diagnose_a_Breaker_that_Keeps_Tripping\"><\/span>\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u5834\u5408\u306e\u8a3a\u65ad\u65b9\u6cd5\u306f\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50650\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/How-to-Diagnose-a-Breaker-that-Keeps-Tripping.jpg\" alt=\"\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u5834\u5408\u306e\u8a3a\u65ad\u65b9\u6cd5\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/How-to-Diagnose-a-Breaker-that-Keeps-Tripping.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/How-to-Diagnose-a-Breaker-that-Keeps-Tripping-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/How-to-Diagnose-a-Breaker-that-Keeps-Tripping-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/How-to-Diagnose-a-Breaker-that-Keeps-Tripping-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u4f5c\u52d5\u3059\u308b\u539f\u56e0\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u4f53\u7cfb\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u554f\u984c\u306e\u6839\u672c\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u8a3a\u65ad\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Identify_the_Tripping_Pattern\"><\/span>\u30c8\u30ea\u30c3\u30d4\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3\u3092\u7279\u5b9a\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3068\u72b6\u6cc1\u3092\u89b3\u5bdf\u3059\u308b\u3053\u3068\u3067\u3001\u539f\u56e0\u3092\u8fc5\u901f\u306b\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002\u77ac\u6642\u306b\u4f5c\u52d5\u3059\u308b\u5834\u5408\u306f\u3001\u77ed\u7d61\u307e\u305f\u306f\u7a81\u5165\u96fb\u6d41\u306e\u904e\u5927\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u4f5c\u52d5\u304c\u9045\u308c\u308b\u5834\u5408\u306f\u3001\u904e\u8ca0\u8377\u304c\u539f\u56e0\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u65ad\u7d9a\u7684\u306b\u4f5c\u52d5\u3059\u308b\u5834\u5408\u306f\u3001\u5730\u7d61\u3001\u74b0\u5883\u8981\u56e0\u3001\u307e\u305f\u306f\u6a5f\u5668\u306e\u6545\u969c\u304c\u539f\u56e0\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Verify_Your_Load_Conditions\"><\/span>\u7a4d\u8f09\u6761\u4ef6\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u7dcf\u63a5\u7d9a\u8ca0\u8377\u3092\u8a08\u7b97\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6b21\u306b\u3001\u7dcf\u8ca0\u8377\u3092\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u96fb\u6d41\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8ca0\u8377\u306f\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5bb9\u91cf\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u304b\uff1f\u4e09\u76f8\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u8ca0\u8377\u306f\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u3044\u307e\u3059\u304b\uff1f\u3082\u3057\u305d\u3046\u3067\u3042\u308c\u3070\u3001\u8ca0\u8377\u3092\u518d\u5206\u914d\u3059\u308b\u304b\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Isolate_the_Circuit\"><\/span>\u56de\u8def\u3092\u5206\u96e2\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u56de\u8def\u4e0a\u306e\u3059\u3079\u3066\u306e\u8ca0\u8377\u3092\u30aa\u30d5\u306b\u3057\u3066\u304b\u3089\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u5f8c\u3001\u8ca0\u8377\u30921\u3064\u305a\u3064\u518d\u63a5\u7d9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7279\u5b9a\u306e\u6a5f\u5668\u3092\u63a5\u7d9a\u3057\u305f\u3068\u304d\u306b\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u6a5f\u5668\u306b\u4e0d\u5177\u5408\u304c\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Inspect_Wiring_and_Connections\"><\/span>\u914d\u7dda\u3068\u63a5\u7d9a\u90e8\u3092\u70b9\u691c\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u914d\u7dda\u306b\u7126\u3052\u8de1\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7aef\u5b50\u306e\u7de9\u307f\u3084\u5c0e\u7dda\u306e\u9732\u51fa\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b1\u30fc\u30d6\u30eb\u306e\u914d\u7dda\u7d4c\u8def\u3084\u6a5f\u68b0\u7684\u306a\u640d\u50b7\u304c\u306a\u3044\u304b\u70b9\u691c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u304c\u691c\u51fa\u3055\u308c\u305f\u5834\u5408\u306f\u3001\u56de\u8def\u306b\u77ed\u7d61\u3084\u904e\u71b1\u306e\u554f\u984c\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Check_for_Short_CircuitGround_Fault\"><\/span>\u77ed\u7d61\/\u5730\u7d61\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u7d76\u7e01\u62b5\u6297\u8a08\u3092\u4f7f\u7528\u3057\u3066\u3001\u914d\u7dda\u306e\u4e0d\u5177\u5408\u3084\u5185\u90e8\u6a5f\u5668\u306e\u77ed\u7d61\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u6d3b\u7dda\u3068\u63a5\u5730\u9593\u3001\u304a\u3088\u3073\u4e2d\u6027\u7dda\u3068\u63a5\u5730\u9593\u306e\u7d76\u7e01\u62b5\u6297\u304c\u4f4e\u3044\u304b\u3069\u3046\u304b\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63a5\u5730\u4e0d\u826f\u304c\u78ba\u8a8d\u3055\u308c\u305f\u5834\u5408\u306f\u3001\u7d76\u7e01\u3092\u4fee\u5fa9\u3059\u308b\u304b\u3001\u640d\u50b7\u3057\u305f\u90e8\u54c1\u3092\u4ea4\u63db\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<p>\u4e00\u822c\u7684\u306a\u539f\u56e0\u304c\u7279\u5b9a\u3067\u304d\u305f\u3089\u3001\u5c02\u9580\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u6a5f\u5668\u306e\u72b6\u614b\u3092\u8a55\u4fa1\u3057\u3001\u7a81\u5165\u96fb\u6d41\u3092\u5206\u6790\u3057\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u7a2e\u985e\u3068\u8a2d\u7f6e\u74b0\u5883\u3092\u691c\u67fb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5fb9\u5e95\u7684\u306a\u691c\u67fb\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u30c8\u30ea\u30c3\u30d7\u3092\u9632\u304e\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>\u3088\u304f\u3042\u308b\u8cea\u554f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50651\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/FAQ-3.jpg\" alt=\"\u3088\u304f\u3042\u308b\u8cea\u554f\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/FAQ-3.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/FAQ-3-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/FAQ-3-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/FAQ-3-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_a_Circuit_Breaker_Trip_Even_if_There_is_No_Obvious_Fault\"><\/span>\u660e\u3089\u304b\u306a\u6545\u969c\u304c\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u3053\u3068\u306f\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u306f\u3044\u3002\u3053\u308c\u306f\u901a\u5e38\u3001\u96a0\u308c\u305f\u554f\u984c\u3084\u9593\u63a5\u7684\u306a\u554f\u984c\u304c\u539f\u56e0\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u7d76\u7e01\u52a3\u5316\u306b\u3088\u308b\u5fae\u5c0f\u306a\u6f0f\u6d29\u96fb\u6d41\u3084\u3001\u6a5f\u5668\u8d77\u52d5\u6642\u306e\u30b5\u30fc\u30b8\u96fb\u6d41\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u4e0d\u9069\u5207\u306a\u74b0\u5883\u3084\u8001\u673d\u5316\u3057\u305f\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3082\u30c8\u30ea\u30c3\u30d7\u306e\u539f\u56e0\u3068\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_It_Dangerous_If_a_Circuit_Breaker_Keeps_Tripping\"><\/span>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u4f5c\u52d5\u3059\u308b\u306e\u306f\u5371\u967a\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u306f\u3044\u3002\u983b\u7e41\u306a\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u4f5c\u52d5\u306f\u3001\u901a\u5e38\u3001\u904e\u8ca0\u8377\u3001\u77ed\u7d61\u3001\u307e\u305f\u306f\u63a5\u5730\u4e0d\u826f\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u653e\u7f6e\u3059\u308b\u3068\u3001\u904e\u71b1\u3001\u96fb\u6c17\u706b\u707d\u3001\u6a5f\u5668\u306e\u640d\u50b7\u3001\u307e\u305f\u306f\u611f\u96fb\u306e\u5371\u967a\u6027\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_Do_You_Prevent_Nuisance_Tripping_in_Industrial_Systems\"><\/span>\u7523\u696d\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u4e0d\u8981\u306a\u30c8\u30ea\u30c3\u30d7\u3092\u9632\u6b62\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u9069\u5207\u306a\u7a2e\u985e\u3068\u5b9a\u683c\u306e\u906e\u65ad\u5668\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002\u8ca0\u8377\u3092\u7ba1\u7406\u30fb\u30d0\u30e9\u30f3\u30b9\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u904e\u96fb\u6d41\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30b5\u30fc\u30b8\u96fb\u6d41\u5bfe\u7b56\u3068\u3057\u3066\u3001\u6642\u9650\u5f0f\u906e\u65ad\u5668\u3084\u53ef\u5909\u5468\u6ce2\u6570\u99c6\u52d5\u88c5\u7f6e\uff08VFD\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u65b9\u6cd5\u306b\u3088\u308a\u3001\u8aa4\u4f5c\u52d5\u3092\u6e1b\u3089\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5168\u6027\u3068\u4fe1\u983c\u6027\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_a_Faulty_Appliance_Cause_a_Circuit_Breaker_to_Trip\"><\/span>\u6545\u969c\u3057\u305f\u96fb\u5316\u88fd\u54c1\u304c\u539f\u56e0\u3067\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u306f\u3044\u3002\u6545\u969c\u3057\u305f\u96fb\u6c17\u6a5f\u5668\u306f\u7570\u5e38\u306a\u96fb\u6d41\u3092\u767a\u751f\u3055\u305b\u3001\u5185\u90e8\u77ed\u7d61\u3084\u6f0f\u96fb\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306b\u3088\u3063\u3066\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_Should_You_Replace_a_Circuit_Breaker\"><\/span>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3044\u3064\u4ea4\u63db\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u983b\u7e41\u306b\u4f5c\u52d5\u3057\u305f\u308a\u3001\u30ea\u30bb\u30c3\u30c8\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3001\u660e\u78ba\u306a\u7406\u7531\u3082\u306a\u304f\u7834\u640d\u3057\u305f\u308a\u3059\u308b\u5834\u5408\u306f\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4ea4\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u73fe\u5728\u306e\u5b89\u5168\u57fa\u6e96\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3084\u3001\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u5fc5\u8981\u306a\u5834\u5408\u3082\u3001\u4ea4\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thought\"><\/span>\u6700\u5f8c\u306b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50652\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Final-Thought-2.jpg\" alt=\"\u6700\u5f8c\u306b\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Final-Thought-2.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Final-Thought-2-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Final-Thought-2-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Final-Thought-2-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>KDM\u306f\u3001\u3055\u307e\u3056\u307e\u306a <a href=\"https:\/\/www.kdmsteel.com\/ja\/\u30ab\u30b9\u30bf\u30e0\u96fb\u6c17\u7b50\u4f53\u30e1\u30fc\u30ab\u30fc\/\">\u96fb\u6c17\u7b50\u4f53<\/a> \u304a\u5ba2\u69d8\u306e\u69d8\u3005\u306a\u7528\u9014\u30cb\u30fc\u30ba\u306b\u304a\u5fdc\u3048\u3059\u308b\u305f\u3081\u3001\u5404\u7a2e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3082\u3054\u7528\u610f\u3057\u3066\u304a\u308a\u307e\u3059\u3002\u88fd\u54c1\u306e\u54c1\u8cea\u554f\u984c\u3092\u9632\u3050\u305f\u3081\u3001\u8907\u6570\u56de\u306e\u691c\u67fb\u3092\u5b9f\u65bd\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u304a\u5ba2\u69d8\u306e\u3054\u8981\u671b\u306b\u5fdc\u3058\u305f\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u30b5\u30fc\u30d3\u30b9\u3082\u63d0\u4f9b\u3057\u3001\u8fc5\u901f\u306b\u5bfe\u5fdc\u3044\u305f\u3057\u307e\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>A circuit breaker that trips frequently may indicate potential risks in your system. Why does a circuit breaker trip? This article helps electrical engineers and system integrators understand circuit breaker tripping reasons and provides you with tips for diagnosing fault conditions. Main Causes of Circuit Breaker Trips When the electrical conditions exceed the safe operating [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":50653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":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":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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-50645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Do Circuit Breakers Trip? - KDM Steel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Do Circuit Breakers Trip? - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"A circuit breaker that trips frequently may indicate potential risks in your system. Why does a circuit breaker trip? This article helps electrical engineers and system integrators understand circuit breaker tripping reasons and provides you with tips for diagnosing fault conditions. Main Causes of Circuit Breaker Trips When the electrical conditions exceed the safe operating [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/\" \/>\n<meta property=\"og:site_name\" content=\"KDM Steel\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-10T04:06:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-10T04:17:43+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Why-Do-Circuit-Breakers-Trip.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Kdmsteel Engineering Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kdmsteel Engineering Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"8\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/\"},\"author\":{\"name\":\"Kdmsteel Engineering Team\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#\\\/schema\\\/person\\\/20f9dd106f5824b75813f83f5a192a5f\"},\"headline\":\"Why Do Circuit Breakers Trip?\",\"datePublished\":\"2026-04-10T04:06:10+00:00\",\"dateModified\":\"2026-04-10T04:17:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/\"},\"wordCount\":1519,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.kdmsteel.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/Why-Do-Circuit-Breakers-Trip.jpg\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/\",\"url\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/\",\"name\":\"Why Do Circuit Breakers Trip? - KDM Steel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.kdmsteel.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/Why-Do-Circuit-Breakers-Trip.jpg\",\"datePublished\":\"2026-04-10T04:06:10+00:00\",\"dateModified\":\"2026-04-10T04:17:43+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.kdmsteel.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/Why-Do-Circuit-Breakers-Trip.jpg\",\"contentUrl\":\"https:\\\/\\\/www.kdmsteel.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/Why-Do-Circuit-Breakers-Trip.jpg\",\"width\":1280,\"height\":720,\"caption\":\"Why Do Circuit Breakers Trip\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/why-do-circuit-breakers-trip\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.kdmsteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Why Do Circuit Breakers Trip?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#website\",\"url\":\"https:\\\/\\\/www.kdmsteel.com\\\/\",\"name\":\"KDM Steel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.kdmsteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#organization\",\"name\":\"KDM Steel\",\"url\":\"https:\\\/\\\/www.kdmsteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.kdmsteel.com\\\/wp-content\\\/uploads\\\/2024\\\/05\\\/cropped-kdmsteel-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.kdmsteel.com\\\/wp-content\\\/uploads\\\/2024\\\/05\\\/cropped-kdmsteel-logo.png\",\"width\":998,\"height\":535,\"caption\":\"KDM Steel\"},\"image\":{\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.kdmsteel.com\\\/#\\\/schema\\\/person\\\/20f9dd106f5824b75813f83f5a192a5f\",\"name\":\"Kdmsteel Engineering Team\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/64b16d13078b1bec337dbb31f593dfd16bc530c88ca9fe9b1c9d2a002408080e?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/64b16d13078b1bec337dbb31f593dfd16bc530c88ca9fe9b1c9d2a002408080e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/64b16d13078b1bec337dbb31f593dfd16bc530c88ca9fe9b1c9d2a002408080e?s=96&d=mm&r=g\",\"caption\":\"Kdmsteel Engineering Team\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\u3068\u306f\uff1f - KDM Steel","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/","og_locale":"ja_JP","og_type":"article","og_title":"Why Do Circuit Breakers Trip? - KDM Steel","og_description":"A circuit breaker that trips frequently may indicate potential risks in your system. Why does a circuit breaker trip? This article helps electrical engineers and system integrators understand circuit breaker tripping reasons and provides you with tips for diagnosing fault conditions. Main Causes of Circuit Breaker Trips When the electrical conditions exceed the safe operating [&hellip;]","og_url":"https:\/\/www.kdmsteel.com\/ja\/\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\/","og_site_name":"KDM Steel","article_published_time":"2026-04-10T04:06:10+00:00","article_modified_time":"2026-04-10T04:17:43+00:00","og_image":[{"width":1280,"height":720,"url":"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Why-Do-Circuit-Breakers-Trip.jpg","type":"image\/jpeg"}],"author":"Kdmsteel Engineering Team","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"Kdmsteel Engineering Team","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"8\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#article","isPartOf":{"@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/"},"author":{"name":"Kdmsteel Engineering Team","@id":"https:\/\/www.kdmsteel.com\/#\/schema\/person\/20f9dd106f5824b75813f83f5a192a5f"},"headline":"Why Do Circuit Breakers Trip?","datePublished":"2026-04-10T04:06:10+00:00","dateModified":"2026-04-10T04:17:43+00:00","mainEntityOfPage":{"@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/"},"wordCount":1519,"commentCount":0,"publisher":{"@id":"https:\/\/www.kdmsteel.com\/#organization"},"image":{"@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Why-Do-Circuit-Breakers-Trip.jpg","articleSection":["Blog"],"inLanguage":"ja","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/","url":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/","name":"\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u7406\u7531\u3068\u306f\uff1f - KDM Steel","isPartOf":{"@id":"https:\/\/www.kdmsteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#primaryimage"},"image":{"@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Why-Do-Circuit-Breakers-Trip.jpg","datePublished":"2026-04-10T04:06:10+00:00","dateModified":"2026-04-10T04:17:43+00:00","breadcrumb":{"@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#primaryimage","url":"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Why-Do-Circuit-Breakers-Trip.jpg","contentUrl":"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/04\/Why-Do-Circuit-Breakers-Trip.jpg","width":1280,"height":720,"caption":"Why Do Circuit Breakers Trip"},{"@type":"BreadcrumbList","@id":"https:\/\/www.kdmsteel.com\/why-do-circuit-breakers-trip\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.kdmsteel.com\/"},{"@type":"ListItem","position":2,"name":"Why Do Circuit Breakers Trip?"}]},{"@type":"WebSite","@id":"https:\/\/www.kdmsteel.com\/#website","url":"https:\/\/www.kdmsteel.com\/","name":"KDM\u30b9\u30c1\u30fc\u30eb","description":"","publisher":{"@id":"https:\/\/www.kdmsteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.kdmsteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/www.kdmsteel.com\/#organization","name":"KDM\u30b9\u30c1\u30fc\u30eb","url":"https:\/\/www.kdmsteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.kdmsteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/05\/cropped-kdmsteel-logo.png","contentUrl":"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/05\/cropped-kdmsteel-logo.png","width":998,"height":535,"caption":"KDM Steel"},"image":{"@id":"https:\/\/www.kdmsteel.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.kdmsteel.com\/#\/schema\/person\/20f9dd106f5824b75813f83f5a192a5f","name":"Kdmsteel Engineering Team","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/secure.gravatar.com\/avatar\/64b16d13078b1bec337dbb31f593dfd16bc530c88ca9fe9b1c9d2a002408080e?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/64b16d13078b1bec337dbb31f593dfd16bc530c88ca9fe9b1c9d2a002408080e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/64b16d13078b1bec337dbb31f593dfd16bc530c88ca9fe9b1c9d2a002408080e?s=96&d=mm&r=g","caption":"Kdmsteel Engineering Team"}}]}},"_links":{"self":[{"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/posts\/50645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/comments?post=50645"}],"version-history":[{"count":4,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/posts\/50645\/revisions"}],"predecessor-version":[{"id":50655,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/posts\/50645\/revisions\/50655"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/media\/50653"}],"wp:attachment":[{"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/media?parent=50645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/categories?post=50645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kdmsteel.com\/ja\/wp-json\/wp\/v2\/tags?post=50645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}