{"id":45273,"date":"2024-02-23T09:18:26","date_gmt":"2024-02-23T09:18:26","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=45273"},"modified":"2024-02-23T09:18:26","modified_gmt":"2024-02-23T09:18:26","slug":"dc-circuit-breaker","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/","title":{"rendered":"DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc"},"content":{"rendered":"<p>\u3053\u308c\u3089\u306f\u3001\u76f4\u6d41\u96fb\u6d41\u304c\u4f9b\u7d66\u3055\u308c\u308b\u56de\u8def\u306e\u77ed\u7d61\u3084\u904e\u96fb\u6d41\u304b\u3089\u4fdd\u8b77\u3059\u308b\u6a5f\u68b0\u5f0f\u30b9\u30a4\u30c3\u30c1\u3067\u3059\u3002\u969c\u5bb3\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306b DC \u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u306e\u96fb\u6d41\u306e\u6d41\u308c\u3092\u906e\u65ad\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45274\" aria-describedby=\"caption-attachment-45274\" style=\"width: 615px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45274\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-1-DC-circuit-breaker.jpg\" alt=\"DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"615\" height=\"425\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-1-DC-circuit-breaker.jpg 615w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-1-DC-circuit-breaker-150x104.jpg 150w\" sizes=\"auto, (max-width: 615px) 100vw, 615px\" \/><figcaption id=\"caption-attachment-45274\" class=\"wp-caption-text\">DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/figcaption><\/figure>\n<p>\u96fb\u6d41\u3092\u5236\u9650\u3057\u3001\u904e\u96fb\u6d41\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308b\u30a2\u30fc\u30af\u3092\u6d88\u3059\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u56de\u8def\u306e\u5dee\u52d5\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u5927\u5e45\u306b\u6539\u5584\u3055\u308c\u307e\u3059\u3002<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\/\u76f4\u6d41\u906e\u65ad\u5668\/#Circuit_Breaker_for_DC_Basics\" >DC\u7528\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u57fa\u790e<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Circuit_Breaker_Symbol\" >DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc \u30b7\u30f3\u30dc\u30eb<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_DC_Circuit_Breaker_Wiring_Diagram\" >\u00b7 DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u914d\u7dda\u56f3<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Function_of_Circuit_Breaker_in_DC_Systems\" >DC\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u56de\u8def\u906e\u65ad\u5668\u306e\u6a5f\u80fd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Types_of_DC_Circuit_Breakers\" >DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u7a2e\u985e<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Arc_Suppression_Circuit_Breakers\" >DC\u30a2\u30fc\u30af\u6291\u5236\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#High-Speed_DC_Circuit_Breaker\" >\u9ad8\u901fDC\u906e\u65ad\u5668<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Solid_State_Circuit_Breaker\" >DC\u30bd\u30ea\u30c3\u30c9\u30b9\u30c6\u30fc\u30c8\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#High_Voltage_DC_Circuit_Breaker\" >\u9ad8\u96fb\u5727DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Magnetic_DC_Circuit_Breaker\" >\u78c1\u6c17\u76f4\u6d41\u906e\u65ad\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Thermal_DC_Circuit_Breaker\" >\u71b1\u5f0fDC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#Thermal-Magnetic_DC_Circuit_Breaker\" >\u71b1\u78c1\u6c17\u5f0f\u76f4\u6d41\u906e\u65ad\u5668<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#Hybrid_DC_Circuit_Breaker\" >\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#Number_of_Poles\" >\u6975\u6570<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#2_Pole_DC_Circuit_Breaker\" >2\u6975DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#4_Pole_DC_Circuit_Breaker\" >4\u6975DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Mini_Circuit_BreakerDC_Miniature_Circuit_Breaker\" >DC\u30df\u30cb\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\/DC\u30df\u30cb\u30c1\u30e5\u30a2\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Molded_Case_Circuit_Breakers\" >DC \u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u56de\u8def\u906e\u65ad\u5668<\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Air_Circuit_Breaker\" >DC\u30a8\u30a2\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Parts_of_Circuit_Breaker_for_Direct_Current\" >\u76f4\u6d41\u7528\u906e\u65ad\u5668\u306e\u90e8\u54c1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Circuit_Breaker_Working_Principle\" >DC\u56de\u8def\u906e\u65ad\u5668\u306e\u52d5\u4f5c\u539f\u7406<\/a><\/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\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Circuit_Breaker_Rating\" >DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Circuit_Breaker_Sizing\" >DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#80_Breaker_Rule\" >80% \u30d6\u30ec\u30fc\u30ab\u30fc\u30eb\u30fc\u30eb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Calculating_Amps_from_Wattage\" >\u30ef\u30c3\u30c8\u6570\u304b\u3089\u30a2\u30f3\u30da\u30a2\u6570\u3092\u8a08\u7b97\u3059\u308b<\/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-26\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Thermal_Magnetic_Tripping_in_Circuit_Breaker_for_DC\" >DC\u7528\u906e\u65ad\u5668\u306e\u71b1\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_MCB_Circuit_Breaker_vs_Molded_Case_Circuit_Breaker_MCCB\" >DC MCB \u56de\u8def\u906e\u65ad\u5668\u3068\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u56de\u8def\u906e\u65ad\u5668 (MCCB) \u306e\u6bd4\u8f03<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#DC_Vs_AC_Circuit_Breaker\" >DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3068 AC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#Applications_of_Circuit_Breaker_in_DC_Systems\" >DC\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u56de\u8def\u906e\u65ad\u5668\u306e\u7528\u9014<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_Circuit_Breaker_for_DC_Power_Transmission\" >\u00b7 \u76f4\u6d41\u96fb\u529b\u4f1d\u9001\u7528\u906e\u65ad\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_DC_Motor_Circuit_Breaker\" >\u00b7 DC\u30e2\u30fc\u30bf\u30fc\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_DC_Solar_Circuit_Breaker\" >\u00b7 DC\u30bd\u30fc\u30e9\u30fc\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#How_to_Choose_Circuit_Breaker_for_DC\" >DC\u7528\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u3073\u65b9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#FAQs\" >\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-35\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_Can_AC_Circuit_Breakers_be_used_in_DC_Systems\" >\u00b7 AC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f DC \u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_Arcing_In_DC_Breakers_Vs_in_AC_Breakers\" >\u00b7 DC\u30d6\u30ec\u30fc\u30ab\u30fc\u3068AC\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30a2\u30fc\u30af<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.kdmsteel.com\/ja\/\u76f4\u6d41\u906e\u65ad\u5668\/#%C2%B7_DC_circuit_Breakers_Directional\" >\u00b7 DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u65b9\u5411\u6027\u304c\u3042\u308a\u307e\u3059\u304b?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Circuit_Breaker_for_DC_Basics\"><\/span>DC\u7528\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u57fa\u790e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"DC_Circuit_Breaker_Symbol\"><\/span>DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc \u30b7\u30f3\u30dc\u30eb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3053\u308c\u3089\u306e\u8a18\u53f7\u306f\u4e3b\u306b <a href=\"https:\/\/en.wikipedia.org\/wiki\/Electrical_network\">\u96fb\u6c17\u56de\u8def<\/a>.<\/p>\n<figure id=\"attachment_45275\" aria-describedby=\"caption-attachment-45275\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45275\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/Figure-2-DC-circuit-breaker-symbol.jpg\" alt=\"DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc \u30b7\u30f3\u30dc\u30eb\" width=\"650\" height=\"450\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/Figure-2-DC-circuit-breaker-symbol.jpg 650w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/Figure-2-DC-circuit-breaker-symbol-150x104.jpg 150w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><figcaption id=\"caption-attachment-45275\" class=\"wp-caption-text\">DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc \u30b7\u30f3\u30dc\u30eb<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_DC_Circuit_Breaker_Wiring_Diagram\"><\/span>\u00b7 DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u914d\u7dda\u56f3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u305f\u3060\u3057\u3001\u914d\u7dda\u56f3\u306e\u5834\u5408\u306f\u3001\u6b21\u306e\u3088\u3046\u306a 3D \u753b\u50cf\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45276\" aria-describedby=\"caption-attachment-45276\" style=\"width: 621px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45276\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-3-DC-circuit-breaker-wiring.jpg\" alt=\"DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u914d\u7dda\" width=\"621\" height=\"348\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-3-DC-circuit-breaker-wiring.jpg 621w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-3-DC-circuit-breaker-wiring-150x84.jpg 150w\" sizes=\"auto, (max-width: 621px) 100vw, 621px\" \/><figcaption id=\"caption-attachment-45276\" class=\"wp-caption-text\">DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u914d\u7dda<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Function_of_Circuit_Breaker_in_DC_Systems\"><\/span>DC\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u56de\u8def\u906e\u65ad\u5668\u306e\u6a5f\u80fd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u540d\u524d\u304b\u3089\u308f\u304b\u308b\u3088\u3046\u306b\u3001\u79c1\u305f\u3061\u306f\u305d\u306e\u3088\u3046\u306a\u3082\u306e\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Circuit_breaker\">\u96fb\u6c17\u30d6\u30ec\u30fc\u30ab\u30fc<\/a> \u76f4\u6d41\u3067\u52d5\u4f5c\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u3002\u3053\u306e\u3088\u3046\u306a\u30b7\u30b9\u30c6\u30e0\u306f\u3001AC \u30b7\u30b9\u30c6\u30e0\u3068\u306f\u7570\u306a\u308a\u3001\u4e00\u5b9a\u306e\u96fb\u5727\u51fa\u529b\u3092\u6301\u3061\u307e\u3059\u3002<\/p>\n<p>\u78c1\u6c17\u539f\u7406\u3068\u71b1\u539f\u7406\u3092\u7d44\u307f\u5408\u308f\u305b\u3066 DC \u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u96fb\u6d41\u304c\u5b9a\u683c\u5024\u3092\u8d85\u3048\u308b\u3068\u3001\u71b1\u4fdd\u8b77\u6a5f\u80fd\u306b\u3088\u3063\u3066\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3057\u307e\u3059\u3002<\/p>\n<p>\u56de\u8def\u5185\u3067\u767a\u751f\u3059\u308b\u3042\u3089\u3086\u308b\u96fb\u6d41\u969c\u5bb3\u3092\u4e00\u6642\u7684\u306b\u963b\u6b62\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u904e\u5270\u306a\u96fb\u5727\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308b\u30a2\u30fc\u30af\u3092\u8fc5\u901f\u306b\u6d88\u706b\u3059\u308b\u5f79\u5272\u3082\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u71b1\u4fdd\u8b77\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u904e\u8ca0\u8377\u96fb\u6d41\u306b\u5bfe\u3059\u308b\u30d5\u30a7\u30a4\u30eb\u30bb\u30fc\u30d5\u3067\u3059\u3002\u5f37\u3044\u6545\u969c\u96fb\u6d41\u306b\u5bfe\u51e6\u3059\u308b\u5834\u5408\u3001\u6025\u901f\u306a<a href=\"https:\/\/electrical-engineering-portal.com\/how-circuit-breaker-trip-unit-works\">\u00a0\u78c1\u6c17\u4fdd\u8b77\u306b\u3088\u308a\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b<\/a>.<\/p>\n<p>DC \u56de\u8def\u306b\u4e00\u5b9a\u306e\u96fb\u6d41\u304c\u6d41\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u63a5\u70b9\u304c\u9650\u754c\u3092\u8d85\u3048\u3066\u5b8c\u5168\u306b\u958b\u3044\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u904e\u5270\u306a\u96fb\u6d41\u306e\u6d41\u308c\u304c\u5b8c\u5168\u306b\u906e\u65ad\u3055\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c DC \u30b7\u30b9\u30c6\u30e0\u3092\u3042\u3089\u3086\u308b\u969c\u5bb3\u3084\u77ed\u7d61\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u77ed\u7d61\u306f\u3001\u904e\u8ca0\u8377\u3088\u308a\u3082\u5927\u304d\u304f\u306a\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_DC_Circuit_Breakers\"><\/span>DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u7a2e\u985e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"DC_Arc_Suppression_Circuit_Breakers\"><\/span>DC\u30a2\u30fc\u30af\u6291\u5236\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30a2\u30fc\u30af\u6291\u5236\u306b\u95a2\u3057\u3066\u306f\u3001DC \u30a2\u30fc\u30af\u304c\u6700\u3082\u56f0\u96e3\u3067\u3059\u3002\u5f53\u793e\u306f\u76f4\u6d41\u3092\u7d99\u7d9a\u7684\u306b\u4f9b\u7d66\u3059\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u5e83\u3044\u30ae\u30e3\u30c3\u30d7\u3067\u3082\u975e\u5e38\u306b\u5b89\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30a2\u30fc\u30af\u306e\u5f71\u97ff\u3092\u6e1b\u3089\u3059\u306b\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u6a5f\u69cb\u304c\u63a5\u70b9\u3092\u975e\u5e38\u306b\u901f\u304f\u5206\u96e2\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u3044\u305f\u3068\u304d\u306b\u30a2\u30fc\u30af\u3092\u6d88\u3059\u7a7a\u6c17\u30ae\u30e3\u30c3\u30d7\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u63a5\u70b9\u306f\u3001\u958b\u304f\u3068\u304d\u306b\u76f4\u9762\u3059\u308b\u540c\u3058\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u3001\u975e\u5e38\u306b\u9ad8\u901f\u306b\u52d5\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u88fd\u9020\u5143\u306f\u5e38\u306b\u30d6\u30ec\u30fc\u30ab\u30fc\u306e DC \u5b9a\u683c\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45277\" aria-describedby=\"caption-attachment-45277\" style=\"width: 578px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45277\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-4-Arc-suppersion-circuit-breaker.jpg\" alt=\"\u30a2\u30fc\u30af\u6291\u5236\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"578\" height=\"415\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-4-Arc-suppersion-circuit-breaker.jpg 578w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-4-Arc-suppersion-circuit-breaker-150x108.jpg 150w\" sizes=\"auto, (max-width: 578px) 100vw, 578px\" \/><figcaption id=\"caption-attachment-45277\" class=\"wp-caption-text\">\u30a2\u30fc\u30af\u6291\u5236\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/figcaption><\/figure>\n<p>\u3053\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u77ed\u7d61\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u52d5\u4f5c\u96fb\u6d41\u304c\u5897\u52a0\u3057\u3066\u77ed\u7d61\u96fb\u6d41\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3059\u3079\u3066\u3001\u77ed\u7d61\u30eb\u30fc\u30d7\u306e\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3068\u62b5\u6297\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"High-Speed_DC_Circuit_Breaker\"><\/span>\u9ad8\u901fDC\u906e\u65ad\u5668<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u308c\u3089\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u4e3b\u306b\u727d\u5f15\u5909\u96fb\u6240\u3084\u30e6\u30cb\u30c3\u30c8\u306b\u9069\u7528\u3055\u308c\u3001\u6700\u5927\u5b9a\u683c\u5024\u306b\u9054\u3059\u308b\u76f4\u524d\u306b\u96fb\u6d41\u3092\u906e\u65ad\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u77ed\u7d61\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u5b9a\u683c\u5024\u3092\u8d85\u3048\u308b\u96fb\u6d41\u30ec\u30d9\u30eb\u306b\u3088\u3063\u3066\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3057\u3001\u96fb\u6d41\u304c\u5236\u9650\u3055\u308c\u3066\u6700\u7d42\u7684\u306b\u906e\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45278\" aria-describedby=\"caption-attachment-45278\" style=\"width: 622px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45278\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-5-High-speed-DC-circuit-breaker.jpg\" alt=\"\u9ad8\u901fDC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"622\" height=\"427\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-5-High-speed-DC-circuit-breaker.jpg 622w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-5-High-speed-DC-circuit-breaker-150x103.jpg 150w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><figcaption id=\"caption-attachment-45278\" class=\"wp-caption-text\">\u9ad8\u901fDC\u906e\u65ad\u5668<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"DC_Solid_State_Circuit_Breaker\"><\/span>DC\u30bd\u30ea\u30c3\u30c9\u30b9\u30c6\u30fc\u30c8\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3053\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u96fb\u6c17\u6a5f\u68b0\u5f0f\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9ad8\u5ea6\u306a\u4ee3\u66ff\u54c1\u3067\u3059\u3002\u53ef\u52d5\u90e8\u54c1\u3092\u3001\u6025\u901f\u306a\u96fb\u6d41\u906e\u65ad\u306b\u3088\u308b\u96fb\u529b\u5236\u5fa1\u306b\u4f7f\u7528\u3055\u308c\u308b\u534a\u5c0e\u4f53\u306b\u7f6e\u304d\u63db\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u9ad8\u5ea6\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u6280\u8853\u306b\u3088\u308a\u3001\u975e\u5e38\u306b\u77ed\u3044\u4e2d\u65ad\u306e\u5f8c\u3067\u3082\u6570\u79d2\u3067\u969c\u5bb3\u3092\u89e3\u6d88\u3067\u304d\u307e\u3059\u3002\u4e3b\u306b\u3001\u969c\u5bb3\u306b\u3088\u308b\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u8caf\u8535\u30b7\u30b9\u30c6\u30e0\u3092\u5099\u3048\u305f\u96fb\u529b\u7db2\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45279\" aria-describedby=\"caption-attachment-45279\" style=\"width: 578px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45279\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-6-DC-solid-state-circuit-breaker.jpg\" alt=\"DC\u30bd\u30ea\u30c3\u30c9\u30b9\u30c6\u30fc\u30c8\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"578\" height=\"423\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-6-DC-solid-state-circuit-breaker.jpg 578w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-6-DC-solid-state-circuit-breaker-150x110.jpg 150w\" sizes=\"auto, (max-width: 578px) 100vw, 578px\" \/><figcaption id=\"caption-attachment-45279\" class=\"wp-caption-text\">DC\u30bd\u30ea\u30c3\u30c9\u30b9\u30c6\u30fc\u30c8\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/figcaption><\/figure>\n<p>\u4e2d\u65ad\u4e2d\u306b\u30a2\u30fc\u30af\u30d5\u30e9\u30c3\u30b7\u30e5\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u653e\u51fa\u3055\u308c\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u30bc\u30ed\u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"High_Voltage_DC_Circuit_Breaker\"><\/span>\u9ad8\u96fb\u5727DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>HVDC \u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u9ad8\u96fb\u5727 DC \u56de\u8def\u306e\u6545\u969c\u96fb\u6d41\u4fdd\u8b77\u3068\u3044\u3046\u552f\u4e00\u306e\u76ee\u7684\u3092\u679c\u305f\u3057\u307e\u3059\u3002DC \u56de\u8def\u306e\u96fb\u6d41\u3068\u96fb\u5727\u304c\u30bc\u30ed\u306b\u306a\u308b\u3053\u3068\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001\u63a5\u70b9\u304c\u5206\u96e2\u3057\u3066\u3044\u308b\u9593\u3001\u96fb\u6d41\u3068\u96fb\u5727\u306f\u901a\u5e38\u3001\u63a5\u70b9\u9593\u3067\u975e\u5e38\u306b\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u63a5\u70b9\u306f\u30a2\u30fc\u30af\u653e\u96fb\u306b\u3088\u3063\u3066\u904e\u71b1\u3057\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u7834\u58ca\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u5bfe\u6297\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u4e26\u5217\u306b\u4f4e\u96fb\u6d41\u56de\u8def\u3092\u5c0e\u5165\u3057\u307e\u3059\u3002\u56de\u8def\u3092\u906e\u65ad\u3059\u308b\u305f\u3081\u306b\u3001\u56de\u8def\u5185\u306b\u4eba\u5de5\u7684\u306b\u30bc\u30ed\u96fb\u6d41\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45280\" aria-describedby=\"caption-attachment-45280\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45280\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-7-High-voltage-DC-Circuit-breaker.jpg\" alt=\"\u9ad8\u96fb\u5727DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"650\" height=\"450\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-7-High-voltage-DC-Circuit-breaker.jpg 650w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-7-High-voltage-DC-Circuit-breaker-150x104.jpg 150w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><figcaption id=\"caption-attachment-45280\" class=\"wp-caption-text\">\u9ad8\u96fb\u5727DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/figcaption><\/figure>\n<p>\u96fb\u6d41\u3068\u96fb\u5727\u306e\u30ec\u30d9\u30eb\u306f\u30a2\u30fc\u30af\u306e\u5f37\u3055\u306b\u6b63\u6bd4\u4f8b\u3059\u308b\u3053\u3068\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u5916\u90e8\u56de\u8def\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6545\u969c\u96fb\u6d41\u304c\u30bc\u30ed\u306b\u306a\u3063\u305f\u76f4\u5f8c\u306b\u56de\u8def\u304c\u5207\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Magnetic_DC_Circuit_Breaker\"><\/span>\u78c1\u6c17\u76f4\u6d41\u906e\u65ad\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3053\u308c\u306f\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u306e\u4e00\u7a2e\u3067\u3059\u3002\u5185\u90e8\u306e\u5c0f\u578b\u78c1\u77f3\u3092\u4f7f\u7528\u3057\u3066\u63a5\u70b9\u3092\u9589\u3058\u305f\u308a\u958b\u3044\u305f\u308a\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u9244\u88fd\u306e\u30d7\u30e9\u30f3\u30b8\u30e3\u30fc\u3092\u56f2\u3080\u5bc6\u9589\u30ef\u30a4\u30e4\u30b3\u30a4\u30eb\u3067\u69cb\u6210\u3055\u308c\u3066\u304a\u308a\u3001\u30d7\u30e9\u30f3\u30b8\u30e3\u30fc\u306b\u306f\u63a5\u70b9\u3082\u56fa\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30a4\u30eb\u306b\u96fb\u6d41\u304c\u6d41\u308c\u308b\u3068\u3001\u63a5\u70b9\u304c\u30b3\u30a4\u30eb\u306b\u5f15\u304d\u5bc4\u305b\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u306b\u3088\u308a\u3001\u30bd\u30ec\u30ce\u30a4\u30c9\u63a5\u70b9\u304c\u9589\u3058\u305f\u308a\u958b\u3044\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45281\" aria-describedby=\"caption-attachment-45281\" style=\"width: 616px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45281\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-8-magnetic-DC-circuit-breaker.jpg\" alt=\"\u78c1\u6c17\u76f4\u6d41\u906e\u65ad\u5668\" width=\"616\" height=\"424\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-8-magnetic-DC-circuit-breaker.jpg 616w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-8-magnetic-DC-circuit-breaker-150x103.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><figcaption id=\"caption-attachment-45281\" class=\"wp-caption-text\">\u78c1\u6c17\u76f4\u6d41\u906e\u65ad\u5668<\/figcaption><\/figure>\n<p>\u5b9a\u683c\u96fb\u6d41\u5024\u3092\u8d85\u3048\u308b\u3068\u3001\u975e\u5e38\u306b\u5f37\u3044\u78c1\u6c17\u5438\u5f15\u529b\u306b\u3088\u3063\u3066\u30c8\u30ea\u30c3\u30d7\u30ec\u30d0\u30fc\u304c\u4f5c\u52d5\u3057\u3001\u56de\u8def\u304c\u958b\u304d\u307e\u3059\u3002\u904e\u8ca0\u8377\u3092\u53d6\u308a\u9664\u3044\u305f\u5f8c\u3001\u30c8\u30ea\u30c3\u30d7\u30ec\u30d0\u30fc\u30cf\u30f3\u30c9\u30eb\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u3068\u56de\u8def\u304c\u9589\u3058\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thermal_DC_Circuit_Breaker\"><\/span>\u71b1\u5f0fDC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3053\u306e\u30e9\u30c3\u30c1\u6a5f\u69cb\u306b\u306f\u3001\u30d0\u30a4\u30e1\u30bf\u30eb \u30b9\u30c8\u30ea\u30c3\u30d7\u304c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d0\u30a4\u30e1\u30bf\u30eb \u30b9\u30c8\u30ea\u30c3\u30d7\u306f\u30012 \u3064\u306e\u7570\u306a\u308b\u91d1\u5c5e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u7570\u306a\u308b\u901f\u5ea6\u3067\u81a8\u5f35\u3059\u308b\u3053\u3068\u3067\u71b1\u306b\u53cd\u5fdc\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d0\u30a4\u30e1\u30bf\u30eb\u30b9\u30c8\u30ea\u30c3\u30d7\u304c\u63a5\u70b9\u304b\u3089\u96e2\u308c\u3066\u66f2\u304c\u308b\u3068\u56de\u8def\u304c\u958b\u304d\u307e\u3059\u3002\u56de\u8def\u306e\u76f4\u63a5\u7684\u306a\u52a0\u71b1\u306f\u56de\u8def\u96fb\u6d41\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u3001\u9593\u63a5\u7684\u306b\u306f\u9ad8\u56de\u8def\u96fb\u6d41\u306b\u3088\u308b\u6e29\u5ea6\u4e0a\u6607\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u62bc\u3057\u30dc\u30bf\u30f3\u3092\u4f7f\u7528\u3057\u3066\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u306b\u306f\u3001\u30d0\u30a4\u30e1\u30bf\u30eb\u30b9\u30c8\u30ea\u30c3\u30d7\u3092\u51b7\u5374\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u901a\u5e38\u306e\u5ba4\u6e29\u3067\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45282\" aria-describedby=\"caption-attachment-45282\" style=\"width: 616px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45282\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-9-thermal-dc-circuit-braker.jpg\" alt=\"\u30b5\u30fc\u30de\u30ebDC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"616\" height=\"424\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-9-thermal-dc-circuit-braker.jpg 616w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-9-thermal-dc-circuit-braker-150x103.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><figcaption id=\"caption-attachment-45282\" class=\"wp-caption-text\">\u30b5\u30fc\u30de\u30ebDC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Thermal-Magnetic_DC_Circuit_Breaker\"><\/span>\u71b1\u78c1\u6c17\u5f0f\u76f4\u6d41\u906e\u65ad\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3053\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306f 2 \u3064\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u904e\u8ca0\u8377\u4fdd\u8b77\u306f\u71b1\u30c8\u30ea\u30c3\u30d7\u306b\u3088\u3063\u3066\u5b9f\u73fe\u3055\u308c\u3001\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7\u306b\u3088\u3063\u3066\u77ed\u7d61\u304c\u9632\u6b62\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u9006\u6642\u9593\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002\u540d\u524d\u304c\u793a\u3059\u3088\u3046\u306b\u3001\u904e\u8ca0\u8377\u304c\u5927\u304d\u3044\u307b\u3069\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u958b\u304f\u6642\u9593\u304c\u77ed\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u904e\u8ca0\u8377\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u904e\u5270\u306a\u96fb\u6d41\u306b\u3088\u3063\u3066\u71b1\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30d0\u30a4\u30e1\u30bf\u30eb\u8981\u7d20\u304c\u3053\u308c\u3092\u62fe\u3044\u3001\u5b9a\u683c\u3092\u8d85\u3048\u308b\u3068\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3057\u307e\u3059\u3002<\/p>\n<p>\u77ed\u7d61\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u96fb\u78c1\u30bb\u30f3\u30b5\u30fc\u304c\u6545\u969c\u96fb\u6d41\u3092\u691c\u51fa\u3057\u3001\u56de\u8def\u3092\u5207\u65ad\u3059\u308b\u3053\u3068\u3067\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hybrid_DC_Circuit_Breaker\"><\/span>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3053\u308c\u306f\u3001\u7570\u306a\u308b\u30d6\u30ec\u30fc\u30ab\u30fc \u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u4e26\u5217\u306b\u69cb\u6210\u3055\u308c\u305f 3 \u3064\u306e\u72ec\u7acb\u3057\u305f\u5206\u5c90\u3092\u6301\u3064 DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u3059\u3002\u6700\u521d\u306e\u5206\u5c90\u306b\u306f\u3001\u516c\u79f0\u96fb\u6d41\u3092\u4f1d\u9054\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u6a5f\u68b0\u5f0f\u30b9\u30a4\u30c3\u30c1\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u4f1d\u5c0e\u640d\u5931\u306b\u3088\u3063\u3066\u6a5f\u68b0\u7684\u306a\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u91d1\u5c5e\u88fd\u306e\u63a5\u70b9\u3082\u5099\u3048\u3066\u3044\u307e\u3059\u30022 \u756a\u76ee\u306e\u30d6\u30e9\u30f3\u30c1\u306f\u3001\u534a\u5c0e\u4f53\u3092\u4f7f\u7528\u3057\u3066\u52b9\u7387\u7684\u306a\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u64cd\u4f5c\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>3\u756a\u76ee\u306e\u5206\u5c90\u306e\u552f\u4e00\u306e\u76ee\u7684\u306f\u904e\u6e21\u96fb\u5727\u3092\u6291\u5236\u3059\u308b\u3053\u3068\u3067\u3059\u3002 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Varistor\">\u91d1\u5c5e\u9178\u5316\u7269\u30d0\u30ea\u30b9\u30bf<\/a> \uff08MOV\uff09\u305d\u3057\u3066\u305d\u308c\u3089\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u78c1\u6c17\u30a8\u30cd\u30eb\u30ae\u30fc\u3082\u5438\u53ce\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45283\" aria-describedby=\"caption-attachment-45283\" style=\"width: 620px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45283\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-10-Hybrid-DC-circuit-breaker.jpg\" alt=\"\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\" width=\"620\" height=\"423\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-10-Hybrid-DC-circuit-breaker.jpg 620w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-10-Hybrid-DC-circuit-breaker-150x102.jpg 150w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><figcaption id=\"caption-attachment-45283\" class=\"wp-caption-text\">\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Number_of_Poles\"><\/span>\u6975\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"2_Pole_DC_Circuit_Breaker\"><\/span>2\u6975DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>2 \u3064\u306e\u6975\u304c\u3042\u308a\u3001\u8ca0\u8377\u3092\u5206\u96e2\u3059\u308b\u6a5f\u80fd\u306b\u3088\u308a\u56de\u8def\u3092\u77ed\u7d61\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002\u30a8\u30cd\u30eb\u30ae\u30fc\u8caf\u8535\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u3001\u901a\u5e38\u306f\u30a4\u30f3\u30d0\u30fc\u30bf\u3068\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u9593\u306b\u914d\u7f6e\u3055\u308c\u307e\u3059\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"4_Pole_DC_Circuit_Breaker\"><\/span>4\u6975DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>1 \u3064\u306e\u4e2d\u6027\u6975\u3068\u4ed6\u306e\u6975\u3067\u56de\u8def\u4fdd\u8b77\u3092\u63d0\u4f9b\u3059\u308b\u72ec\u81ea\u306e\u8a2d\u8a08\u3067\u3059\u3002\u4e0d\u9069\u5207\u306a\u96fb\u6d41\u3092\u691c\u51fa\u3059\u308b\u3068\u3001\u76f4\u3061\u306b\u3059\u3079\u3066\u306e\u6975\u304c\u30c8\u30ea\u30c3\u30d7\u3057\u3066\u5207\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>3 \u76f8\u304a\u3088\u3073 4 \u76f8\u914d\u7dda\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u6975\u6027\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002\u75c5\u9662\u306a\u3069\u3001\u4fdd\u8b77\u3092\u5fc5\u8981\u3068\u3059\u308b\u96fb\u6c17\u6a5f\u5668\u3092\u4f7f\u7528\u3059\u308b\u5834\u6240\u3067\u306f\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"DC_Mini_Circuit_BreakerDC_Miniature_Circuit_Breaker\"><\/span>DC\u30df\u30cb\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\/DC\u30df\u30cb\u30c1\u30e5\u30a2\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DC\u306e\u8a2d\u8a08 <a href=\"https:\/\/www.electronicsforu.com\/technology-trends\/learn-electronics\/miniature-circuit-board-mcb\">MCCB<\/a> \u76f4\u6d41\u3092\u4f7f\u7528\u3059\u308b\u5c02\u7528\u306e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u3059\u3002\u96fb\u6c17\u6a5f\u5668\u3092\u77ed\u7d61\u3084\u904e\u96fb\u6d41\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<p>\u52d5\u4f5c\u3068\u6a5f\u80fd\u306f AC MCB \u3068\u985e\u4f3c\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u9069\u7528\u7bc4\u56f2\u304c\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DC MCB \u306f\u4e3b\u306b\u592a\u967d\u5149\u767a\u96fb (PV) \u306a\u3069\u306e\u76f4\u6d41\u3067\u52d5\u4f5c\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u30d6\u30ec\u30fc\u30ab\u30fc\u306f 12 \uff5e 500V \u306e\u96fb\u5727\u7bc4\u56f2\u5185\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306f\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u8a18\u53f7\u304c\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u96fb\u6d41\u306e\u65b9\u5411\u3082\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"DC_Molded_Case_Circuit_Breakers\"><\/span>DC \u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u56de\u8def\u906e\u65ad\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u79c1\u305f\u3061\u306f\u4e3b\u306bDC\u3092\u4f7f\u7528\u3057\u307e\u3059 <a href=\"https:\/\/electrical-engineering-portal.com\/download-center\/books-and-guides\/electrical-engineering\/basics-of-molded-case-circuit-breakers-mccbs\">MCCB<\/a> \u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u8caf\u8535\u3092\u5fc5\u8981\u3068\u3059\u308b\u7528\u9014\u306b\u6700\u9069\u3067\u3059\u3002\u307e\u305f\u3001\u7523\u696d\u7528 DC \u56de\u8def\u3067\u4f7f\u7528\u3059\u308b\u306e\u306b\u3082\u6700\u9069\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"DC_Air_Circuit_Breaker\"><\/span>DC\u30a8\u30a2\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u4ed6\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u540c\u69d8\u306b\u3001\u96fb\u6c17\u6a5f\u5668\u306e\u904e\u96fb\u6d41\u3084\u77ed\u7d61\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u4fdd\u8b77\u30e1\u30ab\u30cb\u30ba\u30e0\u306f\u4e3b\u306b\u3001\u7a7a\u6c17\u306e\u5674\u5c04\u3092\u4f7f\u7528\u3057\u3066\u30a2\u30fc\u30af\u306e\u5f71\u97ff\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u52d5\u4f5c\u539f\u7406\u306f\u3001\u901a\u5e38\u306e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u5947\u5999\u3067\u3059\u304c\u3001\u3053\u308c\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002\u30a2\u30fc\u30af\u3092\u906e\u65ad\u3059\u308b\u3068\u304d\u306b\u3001\u4f9b\u7d66\u96fb\u5727\u3092\u4e0e\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30a2\u30fc\u30af\u96fb\u5727\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>\u30a2\u30fc\u30af\u96fb\u5727\u306f\u3001\u30a2\u30fc\u30af\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u6700\u5c0f\u306e\u96fb\u5727\u3067\u3059\u3002\u96fb\u5727\u3092\u4e0a\u3052\u308b\u65b9\u6cd5\u306e 1 \u3064\u306f\u3001\u30a2\u30fc\u30af\u3092\u3055\u307e\u3056\u307e\u306a\u30b7\u30ea\u30fc\u30ba\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u30a2\u30fc\u30af\u7d4c\u8def\u304c\u9577\u304f\u306a\u308a\u3001\u62b5\u6297\u304c\u5897\u52a0\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7d4c\u8def\u5168\u4f53\u3067\u8ffd\u52a0\u306e\u30a2\u30fc\u30af\u96fb\u5727\u304c\u5fc5\u8981\u306b\u306a\u308b\u305f\u3081\u3001\u96fb\u5727\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306f 2 \u7d44\u306e\u63a5\u70b9\u304c\u3042\u308a\u3001\u4e3b\u306a\u9285\u63a5\u70b9\u304c\u96fb\u6d41\u3092\u6d41\u3057\u307e\u3059\u3002\u3082\u3046\u4e00\u65b9\u306e\u63a5\u70b9\u306f\u30ab\u30fc\u30dc\u30f3\u88fd\u3067\u3059\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u958b\u3044\u305f\u76f4\u5f8c\u306b\u6700\u521d\u306b\u958b\u304f\u306e\u306f\u30e1\u30a4\u30f3\u63a5\u70b9\u3067\u3059\u304c\u3001\u30a2\u30fc\u30af\u63a5\u70b9\u306f\u305d\u306e\u307e\u307e\u6b8b\u308a\u307e\u3059\u3002\u63a5\u70b9\u304c\u5206\u96e2\u3059\u308b\u3068\u3059\u3050\u306b\u30a2\u30fc\u30af\u653e\u96fb\u304c\u59cb\u307e\u308a\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Parts_of_Circuit_Breaker_for_Direct_Current\"><\/span>\u76f4\u6d41\u7528\u906e\u65ad\u5668\u306e\u90e8\u54c1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u306e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u57fa\u672c\u7684\u306b\u540c\u3058\u3067\u3059\u3002<\/p>\n<p>\u8a73\u7d30\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046:<\/p>\n<p><strong>\u30d5\u30ec\u30fc\u30e0 <\/strong>\u2013 \u901a\u5e38\u3001\u975e\u5e38\u306b\u5f37\u304f\u3066\u786c\u3044\u3067\u3059\u3002\u4e3b\u306a\u76ee\u7684\u306f\u3001\u5185\u90e8\u306e\u90e8\u54c1\u3092\u74b0\u5883\u306e\u904e\u9177\u306a\u6761\u4ef6\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u307e\u305f\u3001\u65ad\u71b1\u52b9\u679c\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u30c8\u30b0\u30eb\/\u30cf\u30f3\u30c9\u30eb<\/strong> \u2013 \u901a\u5e38\u306f DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u958b\u9589\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5927\u578b\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5834\u5408\u3001\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306f\u4fdd\u8b77\u306e\u305f\u3081\u306b 2 \u6bb5\u968e\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u9023\u7d61\u5148<\/strong> \u2013 \u63a5\u7d9a\u3055\u308c\u308b\u3068\u3001\u96fb\u6d41\u306e\u6d41\u308c\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u4f4e\u96fb\u5727\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u306f\u3001\u63a5\u70b9\u306f\u30a2\u30fc\u30af\u906e\u65ad\u3092\u53ce\u5bb9\u3059\u308b\u30c1\u30e3\u30f3\u30d0\u30fc\u5185\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u30a2\u30fc\u30af\u6d88\u706b\u5668<\/strong> \u2013 \u6545\u969c\u306b\u3088\u308a\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3059\u308b\u3068\u3001\u767a\u751f\u3057\u305f\u30a2\u30fc\u30af\u304c\u6d88\u3048\u307e\u3059\u3002\u30a2\u30fc\u30af\u306e\u767a\u751f\u3092\u9632\u3050\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u3067\u304d\u308b\u306e\u306f\u30a2\u30fc\u30af\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3060\u3051\u3067\u3059\u3002<\/p>\n<p><strong>\u30c8\u30ea\u30c3\u30d7\u30e6\u30cb\u30c3\u30c8<\/strong> \u2013 \u77ed\u7d61\u307e\u305f\u306f\u904e\u8ca0\u8377\u304c\u9577\u6642\u9593\u7d9a\u304f\u3068\u3001\u30c8\u30ea\u30c3\u30d7 \u30e6\u30cb\u30c3\u30c8\u306b\u3088\u3063\u3066\u64cd\u4f5c\u6a5f\u69cb\u304c\u958b\u304d\u307e\u3059\u3002\u96fb\u5b50\u5f0f\u307e\u305f\u306f\u96fb\u6c17\u6a5f\u68b0\u7684\u306b\u4f5c\u52d5\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_45284\" aria-describedby=\"caption-attachment-45284\" style=\"width: 618px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45284\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-11-DC-circuit-breaker-parts.jpg\" alt=\" DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u90e8\u54c1\" width=\"618\" height=\"429\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-11-DC-circuit-breaker-parts.jpg 618w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2024\/02\/figure-11-DC-circuit-breaker-parts-150x104.jpg 150w\" sizes=\"auto, (max-width: 618px) 100vw, 618px\" \/><figcaption id=\"caption-attachment-45284\" class=\"wp-caption-text\">DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u90e8\u54c1<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"DC_Circuit_Breaker_Working_Principle\"><\/span>DC\u56de\u8def\u906e\u65ad\u5668\u306e\u52d5\u4f5c\u539f\u7406<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u57fa\u790e - \u3069\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u306e\u304b?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/VGj32euYZ2c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u3001\u6545\u969c\u96fb\u6d41\u307e\u305f\u306f\u904e\u96fb\u6d41\u304b\u3089\u56de\u8def\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\u71b1\u4fdd\u8b77\u30e1\u30ab\u30cb\u30ba\u30e0\u307e\u305f\u306f\u78c1\u6c17\u4fdd\u8b77\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u3044\u305a\u308c\u304b\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u904e\u96fb\u6d41\u304c\u767a\u751f\u3059\u308b\u3068\u3001DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u71b1\u4fdd\u8b77\u306b\u3088\u3063\u3066\u30c8\u30ea\u30c3\u30d7\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u96fb\u6d41\u304c\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u5024\u3092\u8d85\u3048\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>\u52a0\u71b1\u3055\u308c\u308b\u3068\u81a8\u5f35\u3059\u308b 2 \u7a2e\u985e\u306e\u91d1\u5c5e\u3067\u4f5c\u3089\u308c\u305f\u30d0\u30a4\u30e1\u30bf\u30eb \u30b9\u30c8\u30ea\u30c3\u30d7\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u81a8\u5f35\u306e\u5dee\u306b\u3088\u308a\u30d0\u30a4\u30e1\u30bf\u30eb \u30b9\u30c8\u30ea\u30c3\u30d7\u304c\u66f2\u304c\u308a\u3001\u63a5\u89e6\u5668\u3068\u306e\u63a5\u89e6\u304c\u5207\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u71b1\u4fdd\u8b77\u6a5f\u69cb\u306f\u904e\u8ca0\u8377\u96fb\u6d41\u306b\u5bfe\u3057\u3066\u306e\u307f\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u5f93\u6765\u306e\u52d5\u4f5c\u96fb\u6d41\u3092\u8d85\u3048\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>\u78c1\u6c17\u4fdd\u8b77\u306f\u3001\u56de\u8def\u306b\u5927\u304d\u306a\u6545\u969c\u96fb\u6d41\u304c\u3042\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3057\u3001\u52d5\u4f5c\u306f\u8fc5\u901f\u304b\u3064\u5373\u6642\u306b\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u30cf\u30f3\u30c9\u30eb\u307e\u305f\u306f\u30c8\u30b0\u30eb\u3092\u4f7f\u7528\u3057\u3066\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u30aa\u30f3\u306b\u623b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u904e\u8ca0\u8377\u307e\u305f\u306f\u77ed\u7d61\u3092\u4fee\u6b63\u3057\u305f\u5f8c\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"MCB \u306f\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3057\u307e\u3059\u304b?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Unh99Qn7CmI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<h2><span class=\"ez-toc-section\" id=\"DC_Circuit_Breaker_Rating\"><\/span>DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u9069\u5207\u306a DC \u56de\u8def\u3092\u6c7a\u5b9a\u3059\u308b\u306b\u306f\u3001\u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u306e\u5408\u8a08\u96fb\u5727\u5b9a\u683c\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u30dd\u30fc\u30c8\u304b\u3089\u9069\u7528\u53ef\u80fd\u306a\u6700\u9ad8\u96fb\u5727\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u5b9a\u683c\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u96fb\u5727\u3092\u8a08\u7b97\u3059\u308b\u969b\u306b\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u96fb\u5727\u5206\u914d\u3092\u3069\u306e\u3088\u3046\u306b\u7d71\u5408\u3059\u308b\u304b\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u96fb\u5727\u5b9a\u683c\u306f\u3001\u3059\u3079\u3066\u306e\u6700\u7d42\u7528\u9014\u306e\u8981\u6c42\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u5341\u5206\u306a\u3082\u306e\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30a2\u30f3\u30da\u30a2\u6570\u3082\u5b9a\u683c\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u8ca0\u8377\u8981\u4ef6\u306b\u57fa\u3065\u3044\u3066\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306f 100% \u3067\u52d5\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u8ca0\u8377\u96fb\u6d41\u304c 120% \u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u9078\u629e\u3059\u308b\u3068\u3001\u6700\u5927\u9650\u306e\u52d5\u4f5c\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u529b\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u653e\u51fa\u3055\u308c\u308b\u71b1\u3092\u7de9\u548c\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"DC_Circuit_Breaker_Sizing\"><\/span>DC\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u306e\u306f\u975e\u5e38\u306b\u56f0\u96e3\u306a\u4f5c\u696d\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u6c7a\u3057\u3066\u4e0d\u53ef\u80fd\u306a\u4f5c\u696d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u306f\u3001\u5fc5\u8981\u306a\u8ca0\u8377\u96fb\u6d41\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u5927\u304d\u3055\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u306f\u5341\u5206\u627f\u77e5\u3057\u3066\u3044\u307e\u3059\u3002\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3059\u304e\u308b\u3068\u3001\u96fb\u6c17\u706b\u707d\u304c\u767a\u751f\u3059\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5fc3\u914d\u306f\u3044\u308a\u307e\u305b\u3093\u3002\u3044\u304f\u3064\u304b\u306e\u30eb\u30fc\u30eb\u306b\u5f93\u3046\u3060\u3051\u3067\u3001DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u3092\u9069\u5207\u306b\u6c7a\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5f7c\u3089\u3067\u3059\uff1a<\/p>\n<h4><span class=\"ez-toc-section\" id=\"80_Breaker_Rule\"><\/span>80% \u30d6\u30ec\u30fc\u30ab\u30fc\u30eb\u30fc\u30eb<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u57fa\u672c\u7684\u306b\u3001\u3053\u306e\u898f\u5247\u3067\u306f\u3001\u5b9a\u683c\u96fb\u6d41\u5bb9\u91cf\u306f 80% \u307e\u3067\u3057\u304b\u4f7f\u7528\u3067\u304d\u306a\u3044\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u300240A \u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u8a31\u5bb9\u3067\u304d\u308b\u6700\u3082\u5b89\u5168\u306a\u6700\u5927\u96fb\u6d41\u306f 32A \u3067\u3059\u3002\u3053\u306e\u5b89\u5168\u5bfe\u7b56\u306b\u3088\u308a\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u713c\u640d\u3059\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Calculating_Amps_from_Wattage\"><\/span>\u30ef\u30c3\u30c8\u6570\u304b\u3089\u30a2\u30f3\u30da\u30a2\u6570\u3092\u8a08\u7b97\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u4f7f\u7528\u3059\u308b\u3059\u3079\u3066\u306e\u96fb\u5b50\u6a5f\u5668\u306b\u306f\u5b9a\u683c\u30ef\u30c3\u30c8\u6570\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u30022000W \u306e\u30c8\u30fc\u30b9\u30bf\u30fc\u3092\u4f8b\u306b\u6319\u3052\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u306f\u30a2\u30f3\u30da\u30a2\u3067\u6c7a\u307e\u308b\u305f\u3081\u3001\u30ef\u30c3\u30c8\u6570\u3092\u30a2\u30f3\u30da\u30a2\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002240V \u3067\u4f9b\u7d66\u3059\u308b\u3068\u4eee\u5b9a\u3059\u308b\u3068\u3001\u96fb\u6d41\u306f 2000W\/240v \u3068\u306a\u308a\u30018.33A \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089 2 \u3064\u306e\u30eb\u30fc\u30eb\u3092\u9806\u5b88\u3067\u304d\u308b\u5834\u5408\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc \u30b5\u30a4\u30ba\u306e\u8a08\u7b97\u306f\u7c21\u5358\u3067\u3059\u3002\u6b21\u306b\u3001\u4f8b\u3092\u4f7f\u7528\u3057\u3066\u30d6\u30ec\u30fc\u30ab\u30fc \u30b5\u30a4\u30ba\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<p>8.33A \u3092\u6d88\u8cbb\u3059\u308b 2000W \u30c8\u30fc\u30b9\u30bf\u30fc\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u300280% \u30d6\u30ec\u30fc\u30ab\u30fc \u30eb\u30fc\u30eb\u3092\u9069\u7528\u3059\u308b\u3068\u30018.33A \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u306b\u306f\u30011.25 \u306e\u4fc2\u6570\u3092\u53d6\u308a\u3001\u305d\u308c\u306b\u6d88\u8cbb\u96fb\u6d41\u3092\u639b\u3051\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6700\u5c0f\u30d6\u30ec\u30fc\u30ab\u30fc \u30b5\u30a4\u30ba\u306f 8.33A \u00d7 1.25 = 10.42 \u30a2\u30f3\u30da\u30a2\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u96fb\u6d41\u5bb9\u91cf\u306f\u6700\u4f4e\u3067\u3082 10.42 \u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u300115 \u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc \u30b5\u30a4\u30ba\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001240V \u3067\u4f9b\u7d66\u3055\u308c\u308b 2000W \u30c8\u30fc\u30b9\u30bf\u30fc\u306b\u306f 15A \u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u65b9\u6cd5\u3067\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u3092\u624b\u52d5\u3067\u7b97\u51fa\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3088\u308a\u9ad8\u901f\u3067\u7c21\u5358\u306a\u6700\u65b0\u306e\u52d5\u7684\u8a08\u7b97\u6a5f\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3088\u308a\u5927\u304d\u306a\u96fb\u6d41\u3092\u6d88\u8cbb\u3059\u308b\u5834\u5408\u306f\u300130 A \u307e\u305f\u306f 50 A \u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3092 2 \u3064\u4e26\u5217\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u5168\u4f53\u306e\u96fb\u6d41\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Thermal_Magnetic_Tripping_in_Circuit_Breaker_for_DC\"><\/span>DC\u7528\u906e\u65ad\u5668\u306e\u71b1\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u96fb\u6c17\u56de\u8def\u3067\u5b9a\u683c\u96fb\u6d41\u5024\u3092\u8d85\u3048\u308b\u3068\u3001\u71b1\u4fdd\u8b77\u306b\u3088\u3063\u3066\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u4f5c\u52d5\u3057\u307e\u3059\u3002\u71b1\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306f\u3001\u81a8\u5f35\u306e\u7570\u306a\u308b 2 \u3064\u306e\u91d1\u5c5e\u3092\u6301\u3064\u30d0\u30a4\u30e1\u30bf\u30eb \u30b9\u30c8\u30ea\u30c3\u30d7\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u904e\u5270\u96fb\u6d41\u306b\u3088\u308b\u71b1\u306b\u3088\u308a\u30d0\u30a4\u30e1\u30bf\u30eb\u30b9\u30c8\u30ea\u30c3\u30d7\u304c\u66f2\u304c\u308a\u3001\u63a5\u89e6\u5668\u3068\u306e\u63a5\u89e6\u304c\u5207\u65ad\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u6d41\u306e\u6d41\u308c\u304c\u906e\u65ad\u3055\u308c\u3001\u56de\u8def\u304c\u5207\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u96fb\u6d41\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308b\u71b1\u304c\u30d0\u30a4\u30e1\u30bf\u30eb\u30b9\u30c8\u30ea\u30c3\u30d7\u306b\u3068\u3063\u3066\u5927\u304d\u3059\u304e\u308b\u305f\u3081\u3001\u30c8\u30ea\u30c3\u30d7\u304c\u6025\u901f\u306b\u8d77\u3053\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u52d5\u4f5c\u96fb\u6d41\u3092\u8d85\u3048\u308b\u904e\u8ca0\u8377\u96fb\u6d41\u306b\u5bfe\u3059\u308b\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u4fdd\u8b77\u6a5f\u69cb\u3067\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"DC_MCB_Circuit_Breaker_vs_Molded_Case_Circuit_Breaker_MCCB\"><\/span>DC MCB \u56de\u8def\u906e\u65ad\u5668\u3068\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u56de\u8def\u906e\u65ad\u5668 (MCCB) \u306e\u6bd4\u8f03<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u308c\u3089\u306e\u7565\u8a9e\u306f\u9a5a\u304f\u307b\u3069\u4f3c\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u3060\u307e\u3055\u308c\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u305d\u308c\u305e\u308c\u306e\u7528\u9014\u3092\u3088\u308a\u3088\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u3044\u304f\u3064\u304b\u306e\u9055\u3044\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u3001\u305d\u308c\u3089\u306e\u4e3b\u306a\u9055\u3044\u306f\u5bb9\u91cf\u3067\u3059\u3002MCB \u306e\u96fb\u6d41\u5b9a\u683c\u306f 100A \u672a\u6e80\u3067\u3001\u906e\u65ad\u5b9a\u683c\u306f 1800A \u3092\u8d85\u3048\u307e\u305b\u3093\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u3053\u308c\u3089\u306f\u4e3b\u306b\u4f4e\u56de\u8def\u306b\u9069\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u30c8\u30ea\u30c3\u30d7\u7279\u6027\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001MMCB \u306e\u30c8\u30ea\u30c3\u30d7\u7279\u6027\u306f\u7c21\u5358\u306b\u8abf\u6574\u3067\u304d\u307e\u3059\u3002\u4e3b\u306b\u9ad8\u56de\u8def\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5fdc\u3058\u3066\u7d04 10 \uff5e 2500 A \u306e\u30a2\u30f3\u30da\u30a2\u7bc4\u56f2\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<p>\u906e\u65ad\u96fb\u6d41\u7bc4\u56f2\u306f 10000 \uff5e 200000 A \u3068\u975e\u5e38\u306b\u5927\u304d\u304f\u3001\u30e2\u30fc\u30bf\u30fc\u64cd\u4f5c\u306e\u30ea\u30e2\u30fc\u30c8 \u30b3\u30de\u30f3\u30c9\u306b\u7c21\u5358\u306b\u5fdc\u7b54\u3057\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"DC_Vs_AC_Circuit_Breaker\"><\/span>DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3068 AC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>DC \u3068 AC \u306f\u3069\u3061\u3089\u3082\u52d5\u4f5c\u539f\u7406\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u96fb\u6d41\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u3082\u78c1\u6c17\u4fdd\u8b77\u6280\u8853\u3068\u71b1\u4fdd\u8b77\u6280\u8853\u3092\u4f7f\u7528\u3057\u307e\u3059\u304c\u3001\u76f4\u6d41\u3068\u4ea4\u6d41\u3067\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u6ce8\u76ee\u3059\u3079\u304d\u70b9\u306f\u3001\u4e21\u65b9\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30a2\u30fc\u30af\u6d88\u5f27\u70b9\u304c AC \u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u65b9\u304c\u4f4e\u3044\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u3001DC \u306e\u9023\u7d9a\u96fb\u5727\u306b\u3088\u3063\u3066\u3001\u4e2d\u65ad\u3057\u306b\u304f\u3044\u4e00\u5b9a\u306e\u30a2\u30fc\u30af\u304c\u78ba\u4fdd\u3055\u308c\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u7d50\u679c\u306f\u3069\u3046\u306a\u308a\u307e\u3059\u304b? DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306f\u8ffd\u52a0\u306e\u30a2\u30fc\u30af\u6d88\u5f27\u5bfe\u7b56\u304c\u65bd\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30a2\u30fc\u30af\u304c\u5ef6\u9577\u3055\u308c\u6d88\u6563\u3059\u308b\u305f\u3081\u3001\u906e\u65ad\u304c\u306f\u308b\u304b\u306b\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u7167\u7684\u306b\u3001AC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u306f\u30a2\u30fc\u30af\u306e\u906e\u65ad\u304c\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002\u632f\u5e45\u632f\u52d5\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u306e\u30b5\u30a4\u30af\u30eb\u304c\u30bc\u30ed\u306b\u306a\u308a\u3001\u906e\u65ad\u304c\u7c21\u5358\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_of_Circuit_Breaker_in_DC_Systems\"><\/span>DC\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u56de\u8def\u906e\u65ad\u5668\u306e\u7528\u9014<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"\u30b9\u30ed\u30fc\u30e2\u30fc\u30b7\u30e7\u30f3\u3067\u898b\u308b\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u4ed5\u7d44\u307f - Warped Perception - 4K\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/wGFnooeA6Iw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Circuit_Breaker_for_DC_Power_Transmission\"><\/span>\u00b7 \u76f4\u6d41\u96fb\u529b\u4f1d\u9001\u7528\u906e\u65ad\u5668<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u9ad8\u96fb\u5727 DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u9577\u8ddd\u96e2\u306e\u96fb\u529b\u4f1d\u9001\u6642\u306b\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002AC\/DC \u307e\u305f\u306f DC\/AC \u306e\u5909\u63db\u306b\u5fc5\u8981\u306a\u7aef\u5b50\u306f\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u3001\u4fdd\u8b77\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6545\u969c\u96fb\u6d41\u306f\u63a5\u7d9a\u3055\u308c\u305f\u6a5f\u5668\u306b\u640d\u50b7\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_DC_Motor_Circuit_Breaker\"><\/span>\u00b7 DC\u30e2\u30fc\u30bf\u30fc\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u7528\u9014\u306e DC \u96fb\u6c17\u30e2\u30fc\u30bf\u30fc\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u305d\u306e\u307b\u3068\u3093\u3069\u306f\u3001DC \u3092\u4f7f\u7528\u3057\u305f\u5236\u5fa1\u56de\u8def\u306b\u3088\u308a\u3001\u5fdc\u7b54\u6642\u9593\u304c\u901f\u304f\u81ea\u52d5\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u3059\u3079\u3066\u3092\u4fdd\u8b77\u3059\u308b\u306b\u306f\u3001DC \u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_DC_Solar_Circuit_Breaker\"><\/span>\u00b7 DC\u30bd\u30fc\u30e9\u30fc\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30bd\u30fc\u30e9\u30fc\u30d1\u30cd\u30eb\u306f\u901a\u5e38\u3001\u8907\u6570\u306e\u76f4\u5217\u56de\u8def\u306b\u7d44\u307f\u7acb\u3066\u3089\u308c\u307e\u3059\u3002\u56de\u8def\u5168\u4f53\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3042\u308b\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u56de\u8def\u306b DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u4fdd\u8b77\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Choose_Circuit_Breaker_for_DC\"><\/span>DC\u7528\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u3073\u65b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5e02\u5834\u306b\u306f\u3055\u307e\u3056\u307e\u306a DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u8ca9\u58f2\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u308c\u3070\u3001\u9078\u629e\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u6700\u3082\u9069\u5207\u306a\u3082\u306e\u3092\u6c7a\u5b9a\u3059\u308b\u524d\u306b\u3001\u6b21\u306e\u3088\u3046\u306a\u8cea\u554f\u3092\u81ea\u554f\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li>\u5bfe\u8c61\u30c7\u30d0\u30a4\u30b9\u306e\u73fe\u5728\u306e\u5b9a\u683c\u306f\u4f55\u3067\u3059\u304b?<\/li>\n<li>\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306f\u4f55\u6975\u5fc5\u8981\u3067\u3059\u304b?<\/li>\n<\/ol>\n<ul>\n<li>\u30c7\u30d0\u30a4\u30b9\u306e\u96fb\u5727\u8981\u4ef6\u306f\u4f55\u3067\u3059\u304b?<\/li>\n<\/ul>\n<ol>\n<li>\u56de\u8def\u306e\u5408\u8a08\u96fb\u6d41\u306f\u3044\u304f\u3089\u3067\u3059\u304b?<\/li>\n<li>\u7570\u5e38\u306a\u52d5\u4f5c\u6761\u4ef6\u306f\u4f55\u3067\u3059\u304b?<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>\u3088\u304f\u3042\u308b\u8cea\u554f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Can_AC_Circuit_Breakers_be_used_in_DC_Systems\"><\/span>\u00b7 AC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f DC \u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>AC \u30b7\u30b9\u30c6\u30e0\u3068 DC \u30b7\u30b9\u30c6\u30e0\u3092\u8003\u616e\u3059\u308b\u3068\u3001\u4e21\u65b9\u306e\u52a0\u71b1\u52b9\u679c\u306f\u540c\u3058\u3067\u3042\u308b\u3068\u7d50\u8ad6\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u540c\u3058 RMS \u5024\u3067\u3082\u3001\u3055\u307e\u3056\u307e\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<p>AC \u3068\u96fb\u5727\u3092\u4f8b\u306b\u6319\u3052\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u56de\u8def\u3078\u306e\u5f71\u97ff\u306f\u3001\u540c\u3058\u96fb\u5727\u3092\u6301\u3064 DC \u96fb\u6e90\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u3088\u3046\u306a\u56de\u8def\u3067 AC \u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u5b9f\u7528\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u540c\u3058\u539f\u5247\u304c\u3001AC \u56de\u8def\u3067 DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306b\u3082\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u3055\u3066\u3001\u3053\u3053\u3067\u8d77\u3053\u3063\u3066\u3044\u308b\u4e8b\u5b9f\u3092\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u540c\u3058\u96fb\u5727\u4f9b\u7d66\u3092\u8003\u616e\u3059\u308b\u3068\u3001\u901a\u5e38\u3001AC \u30b7\u30b9\u30c6\u30e0\u3067\u306f DC \u30b7\u30b9\u30c6\u30e0\u306b\u6bd4\u3079\u3066\u512a\u308c\u305f\u7d76\u7e01\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u7d76\u7e01\u6750\u6599\u3092\u8a55\u4fa1\u3059\u308b\u969b\u3001\u7279\u306b\u5b9a\u683c\u96fb\u5727\u3068\u53cd\u5bfe\u306e\u96fb\u5727\u306b\u3055\u3089\u3055\u308c\u305f\u5834\u5408\u306b\u7570\u306a\u308b\u53cd\u5fdc\u304c\u8d77\u3053\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u5468\u6ce2\u6570\u304c\u306a\u304f\u3001\u96fb\u6d41\u5024\u304c\u4e00\u5b9a\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u3001\u65b9\u5411\u306f\u96fb\u6d41\u3084\u96fb\u5727\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002 \u7d50\u679c\u7684\u306b\u3001DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3092 AC \u56de\u8def\u3067\u4f7f\u7528\u3059\u308b\u3068\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u63a5\u70b9\u304c\u3088\u308a\u901f\u304f\u6eb6\u3051\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Arcing_In_DC_Breakers_Vs_in_AC_Breakers\"><\/span>\u00b7 DC\u30d6\u30ec\u30fc\u30ab\u30fc\u3068AC\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30a2\u30fc\u30af<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3057\u3066\u56de\u8def\u3092\u906e\u65ad\u3059\u308b\u3068\u3001\u63a5\u70b9\u306b\u4e00\u5b9a\u306e\u96fb\u5b50\u306e\u6d41\u308c\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u5370\u52a0\u96fb\u5727\u306b\u3088\u308b\u524d\u65b9\u3078\u306e\u63a8\u9032\u529b\u306b\u3088\u3063\u3066\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u52b9\u679c\u306f\u30a2\u30fc\u30af\u306e\u767a\u751f\u3067\u3059\u3002\u96fb\u5b50\u306e\u904b\u52d5\u91cf\u306b\u3088\u308a\u3001AC \u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u6bd4\u3079\u3066\u30a2\u30fc\u30af\u304c\u5f37\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001AC \u30d6\u30ec\u30fc\u30ab\u30fc\u5185\u306e\u96fb\u5b50\u4f9b\u7d66\u306f\u6d41\u308c\u3084\u3059\u3044\u305f\u3081\u3001\u96fb\u6d41\u3068\u5370\u52a0\u96fb\u5727\u306e\u4e0d\u5b89\u5b9a\u306a\u72b6\u614b\u306b\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u30d4\u30fc\u30af\u304b\u3089\u30d4\u30fc\u30af\u307e\u3067\u632f\u5e45\u304c\u5909\u52d5\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u30d4\u30fc\u30af\u306f\u6b63\u304b\u3089\u30bc\u30ed\u306b\u306a\u308a\u3001\u305d\u306e\u5f8c\u8ca0\u306b\u306a\u308a\u3001\u518d\u3073\u30bc\u30ed\u306b\u623b\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u7d50\u679c\u3001\u632f\u52d5\u6b6a\u307f\u306b\u3088\u3063\u3066\u904b\u52d5\u91cf\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001AC \u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u751f\u6210\u3055\u308c\u308b\u30a2\u30fc\u30af\u306f DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u751f\u6210\u3055\u308c\u308b\u30a2\u30fc\u30af\u3088\u308a\u3082\u5f31\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_DC_circuit_Breakers_Directional\"><\/span>\u00b7 DC \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u65b9\u5411\u6027\u304c\u3042\u308a\u307e\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u901a\u5e38\u3001DC \u56de\u8def\u3067\u306f\u96fb\u6d41\u306f\u4e00\u65b9\u5411\u306b\u306e\u307f\u6d41\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001DC \u30d6\u30ec\u30fc\u30ab\u30fc\u3082\u4e00\u65b9\u5411\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u6307\u5b9a\u3055\u308c\u305f\u65b9\u5411\u306b\u306e\u307f\u5145\u96fb\u306e\u6d41\u308c\u3092\u8a31\u53ef\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u6975\u6027\u3092\u9006\u306b\u3059\u308b\u3068\u3001\u96fb\u6c17\u6a5f\u5668\u304c\u640d\u50b7\u3057\u3001\u91cd\u5927\u306a\u5b89\u5168\u4e0a\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DC \u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u96fb\u6d41\u304c\u4f4e\u3044\u3068\u304d\u306b\u30a2\u30fc\u30af\u96fb\u5727\u306b\u3088\u3063\u3066\u96fb\u6d41\u3092\u906e\u65ad\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>These are mechanical switches that protect against short circuits and over-currents in circuits supplied with direct current. They are designed to break the current flow in DC electrical systems in the event of a fault. They apply mechanisms that can limit the current and also extinguish arcs caused by over-current. Through this, the differential timing [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":45285,"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":"","ast-featured-img":"disabled","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-45273","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 v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DC Circuit Breaker - 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\/\u76f4\u6d41\u906e\u65ad\u5668\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DC Circuit Breaker - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"These are mechanical switches that protect against short circuits and over-currents in circuits supplied with direct current. They are designed to break the current flow in DC electrical systems in the event of a fault. They apply mechanisms that can limit the current and also extinguish arcs caused by over-current. 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