{"id":668,"date":"2026-09-05T09:23:49","date_gmt":"2026-09-05T09:23:49","guid":{"rendered":"https:\/\/ritoks.com\/?p=668"},"modified":"2026-09-23T14:09:11","modified_gmt":"2026-09-23T14:09:11","slug":"how-to-choose-dc-circuit-breaker-mcb-vs-mccb","status":"publish","type":"post","link":"https:\/\/ritoks.com\/ja\/how-to-choose-dc-circuit-breaker-mcb-vs-mccb\/","title":{"rendered":"DC\u7528\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u3073\u65b9\uff1aMCB\u3068MCCB\u306e\u6bd4\u8f03"},"content":{"rendered":"<div class=\"wp-block-group alignfull has-ast-global-color-5-color has-ast-global-color-2-background-color has-text-color has-background is-layout-constrained wp-container-core-group-is-layout-154c5234 wp-block-group-is-layout-constrained\" style=\"padding-top:clamp(40px, 5.625vw, 72px);padding-right:24px;padding-bottom:clamp(40px, 5.625vw, 72px);padding-left:24px\">\n<h1 class=\"wp-block-heading\">DC\u7528\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u3073\u65b9\uff1aMCB\u3068MCCB\u306e\u6bd4\u8f03<\/h1>\n\n\n\n<figure data-spectra-id=\"spectra-fc535aa4-0808-46ee-9b05-45959dffbe24\" class=\"wp-block-image size-full has-custom-border\" ><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment.jpg\" alt=\"\u592a\u967d\u5149\u767a\u96fb\u304a\u3088\u3073\u7523\u696d\u7528\u76f4\u6d41\u96fb\u529b\u74b0\u5883\u306b\u304a\u3051\u308bDC MCB\u304a\u3088\u3073MCCB\u906e\u65ad\u5668\" class=\"wp-image-672\" width=\"1672\" height=\"941\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment.jpg 1672w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment-600x338.jpg 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment-300x169.jpg 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment-1024x576.jpg 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment-768x432.jpg 768w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-solar-industrial-environment-1536x864.jpg 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">DC\u7528\u906e\u65ad\u5668\u306e\u9078\u629e\u80a2\u3092\u8a55\u4fa1\u3059\u308b\u969b\u306b\u4f7f\u7528\u3055\u308c\u308b\u4ee3\u8868\u7684\u306aDC\u7528MCB\u304a\u3088\u3073MCCB\u306e\u5f62\u5f0f\u3002.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f4\u6d41\u7528\u30df\u30cb\u30c1\u30e5\u30a2\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\uff08MCB\uff09\u3068\u76f4\u6d41\u7528\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\uff08MCCB\uff09\u306e\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u306f\u3001\u300c\u5c0f\u96fb\u6d41\u300d\u306b\u306fMCB\u3092\u3001\u300c\u5927\u96fb\u6d41\u300d\u306b\u306fMCCB\u3092\u5272\u308a\u5f53\u3066\u308b\u3001\u3068\u3044\u3046\u5358\u7d14\u306a\u8a71\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u201c<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull is-layout-constrained wp-container-core-group-is-layout-4f00fe7e wp-block-group-is-layout-constrained\" style=\"padding-top:64px;padding-right:24px;padding-bottom:64px;padding-left:24px\">\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u8fd1\u9053\u306f\u8aa4\u89e3\u3092\u62db\u304f\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728 <a href=\"https:\/\/ritoks.com\/ja\/product-category\/dc-power-protection\/\">RITOKS DC\u96fb\u6e90\u4fdd\u8b77\u88c5\u7f6e<\/a> \u305d\u306e\u7406\u7531\u306f\u3001\u3059\u3067\u306b\u88fd\u54c1\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u3092\u898b\u308c\u3070\u660e\u3089\u304b\u3067\u3059\u3002\u767a\u58f2\u6e08\u307f\u306eDIN\u30ec\u30fc\u30eb\u5f0fDC\u7528MCB\u306b\u306f\u30016\uff5e63A\u306e\u30e2\u30c7\u30eb\u306b\u52a0\u3048\u3001\u5927\u96fb\u6d41\u7528\u306e63\uff5e250A\u30b7\u30ea\u30fc\u30ba\u3082\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u3055\u308c\u3066\u304a\u308a\u3001\u4e00\u65b9\u3001\u73fe\u5728\u306e\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u578bDC\u30d6\u30ec\u30fc\u30ab\u30fc\u30b7\u30ea\u30fc\u30ba\u306b\u306f\u3001125A\u304a\u3088\u3073250A\u306e\u30d5\u30ec\u30fc\u30e0\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u3001\u96fb\u6d41\u7bc4\u56f2\u3060\u3051\u3067\u306f\u3001MCB\u3068MCCB\u3092\u78ba\u5b9f\u306b\u533a\u5225\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u308a\u5b9f\u7528\u7684\u306a\u76f4\u6d41\u906e\u65ad\u5668\u306e\u9078\u5b9a\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u3092\u8003\u616e\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76f4\u6d41\u7cfb\u7d71\u96fb\u5727<\/li>\n\n\n<li>\u52d5\u4f5c\u96fb\u6d41<\/li>\n\n\n<li>\u5fc5\u8981\u306a\u6975\u6570<\/li>\n\n\n<li>\u53d6\u308a\u4ed8\u3051\u65b9\u5f0f<\/li>\n\n\n<li>\u5229\u7528\u53ef\u80fd\u306a\u88fd\u54c1\u69cb\u6210<\/li>\n\n\n<li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8<\/li>\n\n\n<li>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u6b63\u78ba\u306a\u578b\u756a\u306b\u95a2\u3059\u308b\u78ba\u8a8d\u6e08\u307f\u306e\u30c7\u30fc\u30bf<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u4e00\u5f8b\u306e\u96fb\u6d41\u95be\u5024\u306b\u983c\u308b\u3053\u3068\u306a\u304f\u3001DC\u7528MCB\u3068MCCB\u306e\u9078\u629e\u80a2\u3092\u6bd4\u8f03\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"in-this-guide\">\u3053\u306e\u30ac\u30a4\u30c9\u306e\u5185\u5bb9<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"#quick-answer\">\u7c21\u5358\u306a\u7b54\u3048\uff1aMCB\u304bMCCB\u304b\uff1f<\/a><\/li>\n\n\n<li><a href=\"#what-is-a-dc-mcb\">DC MCB\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/a><\/li>\n\n\n<li><a href=\"#what-is-a-dc-mccb\">DC MCCB\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/a><\/li>\n\n\n<li><a href=\"#why-current-alone-is-not-enough\">\u306a\u305c\u96fb\u6d41\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u306a\u306e\u304b<\/a><\/li>\n\n\n<li><a href=\"#selection-process\">\u5b9f\u7528\u7684\u306a\u9078\u8003\u30d7\u30ed\u30bb\u30b9<\/a><\/li>\n\n\n<li><a href=\"#common-mistakes\">\u3088\u304f\u3042\u308b\u9078\u8003\u6642\u306e\u30df\u30b9<\/a><\/li>\n\n\n<li><a href=\"#frequently-asked-questions\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"quick-answer\">\u7c21\u5358\u306a\u7b54\u3048\uff1aMCB\u304bMCCB\u304b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u73fe\u5728\u306eRITOKS\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u306e\u30dd\u30b8\u30b7\u30e7\u30cb\u30f3\u30b0\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>\u9078\u5b9a\u57fa\u6e96<\/th><th>DC MCB<\/th><th>DC MCCB<\/th><\/tr><\/thead><tbody><tr><td>\u73fe\u5728\u306eRITOKS\u306e\u53d6\u308a\u4ed8\u3051\u5f62\u5f0f<\/td><td>35mm DIN\u30ec\u30fc\u30eb<\/td><td>\u30d1\u30cd\u30eb\uff0f\u56fa\u5b9a\u53d6\u308a\u4ed8\u3051<\/td><\/tr><tr><td>RITOKS\u306e\u73fe\u5728\u306e\u30dd\u30fc\u30eb\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7<\/td><td>\u6a5f\u7a2e\u306b\u3088\u308a1P\uff0f2P<\/td><td>\u73fe\u5728\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u7cfb\u7d71\u306b\u304a\u3051\u308b2P<\/td><\/tr><tr><td>\u516c\u958b\u6e08\u307f\u306e\u6700\u65b0\u306e\u4e8b\u4f8b<\/td><td>6\u201363A\u304a\u3088\u307363\u2013250A\u30b7\u30ea\u30fc\u30ba<\/td><td>125A\uff0f250A\u30d5\u30ec\u30fc\u30e0<\/td><\/tr><tr><td>\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u96fb\u5727\u306e\u4f8b<\/td><td>12\uff5e125V\u3001500V\u3001\u304a\u3088\u3073500\uff5e1000V\u306e\u76f4\u6d41\u88fd\u54c1\u7fa4<\/td><td>500V\uff0f1000V\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>\u4e3b\u306a\u9078\u5b9a\u624b\u6cd5<\/td><td>\u96fb\u6c17\u304a\u3088\u3073\u8a2d\u7f6e\u306b\u95a2\u3059\u308b\u8981\u4ef6\u3092\u53b3\u5bc6\u306b\u6e80\u305f\u3059<\/td><td>\u96fb\u6c17\u304a\u3088\u3073\u8a2d\u7f6e\u306b\u95a2\u3059\u308b\u8981\u4ef6\u3092\u53b3\u5bc6\u306b\u6e80\u305f\u3059<\/td><\/tr><tr><td>\u96fb\u6d41\u3060\u3051\u3067\u9078\u629e\u3092\u6c7a\u5b9a\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/td><td>\u3044\u3044\u3048<\/td><td>\u3044\u3044\u3048<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u9593\u306e\u6bd4\u8f03\u3067\u3042\u308a\u3001\u666e\u904d\u7684\u306a\u6280\u8853\u4e0a\u306e\u30eb\u30fc\u30eb\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5229\u7528\u53ef\u80fd\u306a\u5546\u7528\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066\u306f\u3001RITOKS\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/ritoks.com\/ja\/product-category\/dc-power-protection\/dc-circuit-breakers\/\">\u76f4\u6d41\u7528\u906e\u65ad\u5668<\/a> \u30ab\u30c6\u30b4\u30ea\u3002.<\/p>\n\n\n\n<figure data-spectra-id=\"spectra-bbb4d21b-9c2e-4aa7-8384-841a935210ad\" class=\"wp-block-image size-full has-custom-border\" ><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison.jpg\" alt=\"\u592a\u967d\u5149\u767a\u96fb\u7528\u4f5c\u696d\u53f0\u306b\u8a2d\u7f6e\u3055\u308c\u305f\u4ee3\u8868\u7684\u306a\u76f4\u6d41\u30d6\u30ec\u30fc\u30ab\u30fc\u88fd\u54c1\u7fa4\" class=\"wp-image-677\" width=\"1672\" height=\"941\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison.jpg 1672w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison-600x338.jpg 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison-300x169.jpg 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison-1024x576.jpg 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison-768x432.jpg 768w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-breaker-product-family-comparison-1536x864.jpg 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">\u5165\u624b\u53ef\u80fd\u306aDC\u30d6\u30ec\u30fc\u30ab\u30fc\u88fd\u54c1\u7fa4\u306e\u4ee3\u8868\u7684\u306a\u56f3\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u9078\u5b9a\u306e\u53c2\u8003\u3068\u3057\u3066\u8996\u899a\u7684\u306a\u88dc\u52a9\u3068\u3057\u3066\u306e\u307f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-a-dc-mcb\">DC MCB\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DC\u7528\u30df\u30cb\u30c1\u30e5\u30a2\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\uff08MCB\uff09\u306f\u3001\u4e00\u822c\u7684\u306bDIN\u30ec\u30fc\u30eb\u4ed5\u69d8\u3067\u63d0\u4f9b\u3055\u308c\u308b\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u56de\u8def\u4fdd\u8b77\u88c5\u7f6e\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RITOKS\u306eDC\u7528MCB\u88fd\u54c1\u306b\u306f\u3001\u5358\u4e00\u306e\u5b9a\u683c\u7bc4\u56f2\u3067\u306f\u306a\u304f\u3001\u3044\u304f\u3064\u304b\u306e\u7570\u306a\u308b\u30b7\u30ea\u30fc\u30ba\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/ritoks.com\/ja\/products\/2p-dc-miniature-circuit-breaker-500-1000v-6-63a\/\">RTS-DC63-1000<\/a> \u2014 2P\u3001500\uff5e1000V DC\u30016\uff5e63A\u300135mm DIN\u30ec\u30fc\u30eb<\/li>\n\n\n<li>RTS-DC63-500 \u2014 2\u6975\u3001500V DC\u30016\uff5e63A\u300135mm DIN\u30ec\u30fc\u30eb<\/li>\n\n\n<li><a href=\"https:\/\/ritoks.com\/ja\/products\/high-current-dc-miniature-circuit-breaker-12-125v-63-250a\/\">RTS-DC250-125<\/a> \u2014 1P\/2P\u300112\uff5e125V DC\u300163\uff5e250A\u300135mm DIN\u30ec\u30fc\u30eb<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u4f8b\u306f\u3001\u91cd\u8981\u306a\u9078\u629e\u306e\u539f\u5247\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201c\u300cMCB\u300d\u3068\u306f\u3001\u88fd\u54c1\u306e\u69cb\u9020\u304a\u3088\u3073\u88fd\u54c1\u7fa4\u306e\u5f62\u5f0f\u3092\u6307\u3059\u3082\u306e\u3067\u3042\u308a\u3001\u5358\u4e00\u306e\u96fb\u6d41\u5236\u9650\u5024\u306b\u9650\u5b9a\u3057\u3066\u89e3\u91c8\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5229\u7528\u53ef\u80fd\u306a\u30e2\u30c7\u30eb\u306b\u3064\u3044\u3066\u306f\u3001\u5b9f\u969b\u306e\u76f4\u6d41\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u7167\u5408\u304c\u307e\u3060\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306b\u5e45\u5e83\u3044\u9078\u629e\u80a2\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/ritoks.com\/ja\/product-category\/dc-power-protection\/dc-circuit-breakers\/dc-miniature-circuit-breakers\/\">DC\u7528\u5c0f\u578b\u906e\u65ad\u5668<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-a-dc-mccb\">DC MCCB\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DC\u6210\u5f62\u30b1\u30fc\u30b9\u5f0f\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\uff08MCCB\uff09\u306f\u3001\u6210\u5f62\u30b1\u30fc\u30b9\u69cb\u9020\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u901a\u5e38\u3001DIN\u30ec\u30fc\u30eb\u5f0f\u30df\u30cb\u30c1\u30e5\u30a2\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u306f\u7570\u306a\u308b\u65b9\u6cd5\u3067\u8a2d\u7f6e\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u767a\u58f2\u3055\u308c\u3066\u3044\u308bRITOKS MCCB\u30b7\u30ea\u30fc\u30ba\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/ja\/products\/2p-dc-molded-case-circuit-breaker-500-1000v-125-250a\/\"><strong>RTS-DCM250-1000<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u78ba\u8a8d\u6e08\u307f\u306e\u7279\u6027\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2P\u69cb\u6210<\/li>\n\n\n<li>500V\uff0f1000V DC \u30e2\u30c7\u30eb<\/li>\n\n\n<li>125A\uff0f250A\u30d5\u30ec\u30fc\u30e0<\/li>\n\n\n<li>\u30d1\u30cd\u30eb\uff0f\u56fa\u5b9a\u5f0f\u53d6\u308a\u4ed8\u3051<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306b\u3088\u308a\u3001\u73fe\u5728\u306eRITOKS DIN\u30ec\u30fc\u30eb\u5f0fMCB\u30b7\u30ea\u30fc\u30ba\u3068\u306f\u7570\u306a\u308b\u53d6\u308a\u4ed8\u3051\u5f62\u5f0f\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u73fe\u5728\u306e\u88fd\u54c1\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u306fRTS-DC250-125 MCB\u30b7\u30ea\u30fc\u30ba\u3068\u91cd\u8907\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5358\u306b\u6b21\u306e\u3088\u3046\u306b\u5c0b\u306d\u308b\u3060\u3051\u3067\u306f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201c\u300c\u96fb\u6d41\u306f\u7279\u5b9a\u306e\u5024\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u304b\uff1f\u300d\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MCB\u3068MCCB\u306e\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u3092\u6c7a\u3081\u308b\u306b\u306f\u3001\u305d\u308c\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306e\u6210\u5f62\u30b1\u30fc\u30b9\u30fb\u30d5\u30a1\u30df\u30ea\u30fc\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/ritoks.com\/ja\/product-category\/dc-power-protection\/dc-circuit-breakers\/dc-molded-case-circuit-breakers\/\">DC\u6210\u5f62\u30b1\u30fc\u30b9\u578b\u906e\u65ad\u5668<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"why-current-alone-is-not-enough\">MCB \u5bfe MCCB\uff1a\u96fb\u6d41\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u306a\u7406\u7531<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u7684\u306a\u9078\u5b9a\u306e\u76ee\u5b89\u3068\u3057\u3066\u3001\u3042\u308b\u96fb\u6d41\u5024\u4ee5\u4e0b\u3067\u306f\u5e38\u306bMCB\u3092\u4f7f\u7528\u3057\u3001\u305d\u308c\u4ee5\u4e0a\u3067\u306fMCCB\u3092\u4f7f\u7528\u3059\u308b\u3068\u4eee\u5b9a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306eRITOKS\u306e\u88fd\u54c1\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u3092\u898b\u308c\u3070\u3001\u305d\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u306a\u305c\u4fe1\u983c\u3067\u304d\u306a\u3044\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RTS-DC250-125 MCB\u306f\u300135mm DIN\u30ec\u30fc\u30eb\u5bfe\u5fdc\u306e\u88fd\u54c1\u7fa4\u3067\u3042\u308a\u3001\u5b9a\u683c\u96fb\u6d41\u306f63A\u304b\u3089250A\u307e\u3067\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RTS-DCM250-1000 MCCB\u306b\u306f\u3001125A\u304a\u3088\u3073250A\u306e\u30d5\u30ec\u30fc\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u3089\u306e\u7bc4\u56f2\u306f\u91cd\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u305f\u304c\u3063\u3066\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>125A\u307e\u305f\u306f250A\u3068\u3044\u3046\u8981\u4ef6\u3060\u3051\u3067\u306f\u3001\u9069\u5207\u306a\u88fd\u54c1\u5f62\u5f0f\u304cMCB\u304bMCCB\u304b\u306b\u3064\u3044\u3066\u306f\u81ea\u52d5\u7684\u306b\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u4ee3\u308f\u308a\u306b\u3001\u305d\u306e\u6c7a\u5b9a\u306b\u3042\u305f\u3063\u3066\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u304a\u3088\u3073\u8a2d\u7f6e\u8981\u4ef6\u3092\u7dcf\u5408\u7684\u306b\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<figure data-spectra-id=\"spectra-30cbac24-d9d9-416e-abf0-f6ca0903de93\" class=\"wp-block-image size-full has-custom-border\" ><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison.jpg\" alt=\"\u592a\u967d\u5149\u767a\u96fb\u7528\u76f4\u6d41\u914d\u96fb\u76e4\u306b\u304a\u3051\u308bDIN\u30ec\u30fc\u30eb\u5f0f\u76f4\u6d41MCB\u3068\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u578b\u76f4\u6d41MCCB\u306e\u6bd4\u8f03\" class=\"wp-image-676\" width=\"1672\" height=\"941\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison.jpg 1672w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison-600x338.jpg 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison-300x169.jpg 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison-1024x576.jpg 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison-768x432.jpg 768w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-mcb-mccb-form-factor-comparison-1536x864.jpg 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">\u76f4\u6d41\u914d\u96fb\u76e4\u306b\u304a\u3051\u308b\u3001DIN\u30ec\u30fc\u30eb\u5f0f\u76f4\u6d41MCB\u3068\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u578b\u76f4\u6d41MCCB\u306e\u8a2d\u7f6e\u5f62\u5f0f\u3092\u6bd4\u8f03\u3057\u305f\u56f3\u89e3\u3002.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">1. DC\u30b7\u30b9\u30c6\u30e0\u306e\u96fb\u5727\u304b\u3089\u59cb\u3081\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u6700\u521d\u306b\u554f\u3046\u3079\u304d\u8cea\u554f\u306f\u3001\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u3053\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u3069\u306e\u7a0b\u5ea6\u306e\u76f4\u6d41\u96fb\u5727\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u304b\uff1f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u3001RITOKS\u306eMCB\u88fd\u54c1\u7fa4\u306f\u3001\u975e\u5e38\u306b\u591a\u69d8\u306a\u96fb\u5727\u74b0\u5883\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1\u3064\u306e\u30d5\u30a1\u30df\u30ea\u30fc\u306f\u300112\uff5e125V DC\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n<li>\u3082\u30461\u3064\u306f500V DC\u7528<\/li>\n\n\n<li>\u3082\u30461\u3064\u306f500\uff5e1000V\u306e\u76f4\u6d41\u7528<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306eMCCB\u30b7\u30ea\u30fc\u30ba\u306b\u306f\u3001500V\u304a\u3088\u30731000V\u306e\u76f4\u6d41\u4ed5\u69d8\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u3001\u5b9a\u683c\u96fb\u6d41\u304c\u985e\u4f3c\u3057\u3066\u3044\u308b2\u3064\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u3042\u3063\u3066\u3082\u3001\u305d\u308c\u3089\u304c\u9069\u7528\u3055\u308c\u308b\u7cfb\u7d71\u96fb\u5727\u306f\u5927\u304d\u304f\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u683c\u96fb\u6d41\u3060\u3051\u3067\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u9078\u5b9a\u3057\u3001\u96fb\u5727\u8981\u4ef6\u3082\u6e80\u305f\u3055\u308c\u308b\u3068\u5b89\u6613\u306b\u60f3\u5b9a\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u3068\u69cb\u6210\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5fc5\u8981\u306a\u52d5\u4f5c\u96fb\u6d41\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u96fb\u6d41\u306f\u4f9d\u7136\u3068\u3057\u3066\u91cd\u8981\u306a\u9078\u5b9a\u57fa\u6e96\u3067\u3059\u304c\u3001\u305d\u308c\u306f\u6c7a\u5b9a\u8981\u56e0\u306e\u4e00\u90e8\u306b\u904e\u304e\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u3001\u73fe\u5728\u306eRITOKS MCB\u30b7\u30ea\u30fc\u30ba\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>6\uff5e63A\u306e\u30aa\u30d7\u30b7\u30e7\u30f3<\/li>\n\n\n<li>63\uff5e250A\u306e\u30aa\u30d7\u30b7\u30e7\u30f3<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3001\u73fe\u5728\u306eMCCB\u30b7\u30ea\u30fc\u30ba\u306b\u306f\u4ee5\u4e0b\u306e\u88fd\u54c1\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>125A\u30d5\u30ec\u30fc\u30e0<\/li>\n\n\n<li>250A\u30d5\u30ec\u30fc\u30e0<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u91cd\u8907\u306f\u3001\u73fe\u5728\u306e\u5024\u306b\u3088\u3063\u3066\u5019\u88dc\u3068\u306a\u308b\u88fd\u54c1\u304c\u7d5e\u308a\u8fbc\u307e\u308c\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u304c\u3001\u305d\u308c\u3060\u3051\u3067\u306f\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u69cb\u9020\u3092\u6c7a\u5b9a\u3065\u3051\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u3057\u3044\u9078\u629e\u306f\u3001\u305d\u306e\u30e2\u30c7\u30eb\u306e\u6b63\u78ba\u306a\u4ed5\u69d8\u66f8\u306b\u57fa\u3065\u3044\u3066\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u6975\u6570\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30dd\u30fc\u30eb\u306e\u69cb\u6210\u3082\u3001\u3069\u306e\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u304c\u9069\u5207\u304b\u3068\u3044\u3046\u70b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u516c\u958b\u3055\u308c\u3066\u3044\u308bRITOKS\u306e\u4f8b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2P MCB\u30b7\u30ea\u30fc\u30ba<\/li>\n\n\n<li>1P\/2P\u4f4e\u96fb\u5727\u30fb\u5927\u96fb\u6d41\u7528MCB\u30b7\u30ea\u30fc\u30ba<\/li>\n\n\n<li>2P MCCB \u30b7\u30ea\u30fc\u30ba<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u305f\u304c\u3063\u3066\u3001\u30e2\u30c7\u30eb\u3092\u9078\u5b9a\u3059\u308b\u524d\u306b\u3001\u5fc5\u8981\u306a\u6975\u6570\u3092\u660e\u78ba\u306b\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3059\u3079\u3066\u306eMCB\u3084MCCB\u306e\u30b7\u30ea\u30fc\u30ba\u304c\u3001\u540c\u3058\u6975\u6570\u69cb\u6210\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u3068\u306f\u9650\u3089\u306a\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u53d6\u308a\u4ed8\u3051\u5f62\u5f0f\u3092\u691c\u8a0e\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u3001\u73fe\u5728\u306eRITOKS\u88fd\u54c1\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u306b\u304a\u3044\u3066\u3001\u6700\u3082\u660e\u78ba\u306a\u5b9f\u7528\u4e0a\u306e\u9055\u3044\u306e\u4e00\u3064\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u73fe\u5728\u306eDC\u7528MCB\u88fd\u54c1\u7fa4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u958b\u3055\u308c\u3066\u3044\u308bMCB\u306e\u4f8b\u3067\u306f\u3001\u4ee5\u4e0b\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>35mm DIN\u30ec\u30fc\u30eb\u53d6\u308a\u4ed8\u3051<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u5f62\u5f0f\u306f\u3001\u901a\u5e38\u3001\u9069\u5207\u306a\u96fb\u6c17\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u5185\u3078\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u5f0f\u8a2d\u7f6e\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u73fe\u5728\u306eDC\u7528MCCB\u88fd\u54c1\u7fa4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u958b\u3055\u308c\u3066\u3044\u308bMCCB\u306e\u4f8b\u3067\u306f\u3001\u4ee5\u4e0b\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30cd\u30eb\uff0f\u56fa\u5b9a\u5f0f\u53d6\u308a\u4ed8\u3051<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306b\u3088\u308a\u3001\u6839\u672c\u7684\u306b\u7570\u306a\u308b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f62\u5f0f\u304c\u751f\u307e\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u3053\u3067\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u65e2\u306b\u6b21\u306e\u3088\u3046\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DIN\u30ec\u30fc\u30eb\u5f0f\u30e2\u30b8\u30e5\u30fc\u30eb\u6a5f\u5668<\/li>\n\n\n<li>\u30d1\u30cd\u30eb\u53d6\u4ed8\u578b\u6210\u5f62\u7b50\u4f53\u6a5f\u5668<\/li>\n\n\n<li>\u7279\u5b9a\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u306e\u30ec\u30a4\u30a2\u30a6\u30c8<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u7269\u7406\u7684\u306a\u53d6\u308a\u4ed8\u3051\u8981\u4ef6\u306b\u3088\u3063\u3066\u3001\u9078\u629e\u80a2\u304c\u3059\u3050\u306b\u72ed\u307e\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u3001\u666e\u904d\u7684\u306a\u5883\u754c\u7dda\u3092\u7279\u5b9a\u3057\u3088\u3046\u3068\u3059\u308b\u3088\u308a\u3082\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u3088\u308a\u6709\u7528\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u88fd\u54c1\u306e\u5177\u4f53\u7684\u306a\u69cb\u6210\u3092\u6bd4\u8f03\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u201c\u300cMCB\u300d\u304a\u3088\u3073\u300cMCCB\u300d\u306f\u3001\u88fd\u54c1\u30b7\u30ea\u30fc\u30ba\u306e\u540d\u79f0\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u5b9a\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u3059\u3079\u3066\u306e\u7279\u6027\u306b\u3064\u3044\u3066\u306f\u3001\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3054\u6ce8\u6587\u306e\u524d\u306b\u3001\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u540d\u304a\u3088\u3073\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u4ed5\u69d8\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8abf\u9054\u30ec\u30d3\u30e5\u30fc\u3067\u306f\u3001\u5c11\u306a\u304f\u3068\u3082\u4ee5\u4e0b\u306e\u70b9\u3092\u7279\u5b9a\u3059\u3079\u304d\u3067\u3042\u308b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76f4\u6d41\u96fb\u5727<\/li>\n\n\n<li>\u73fe\u5728\u306e\u8981\u4ef6<\/li>\n\n\n<li>\u6975\u914d\u7f6e<\/li>\n\n\n<li>\u53d6\u308a\u4ed8\u3051\u65b9\u6cd5<\/li>\n\n\n<li>\u6b63\u78ba\u306a\u88fd\u54c1\u30e2\u30c7\u30eb<\/li>\n\n\n<li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8<\/li>\n\n\n<li>\u305d\u306e\u4ed6\u3001\u6587\u66f8\u5316\u304c\u6c42\u3081\u3089\u308c\u308b\u7279\u6027<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u30e2\u30c7\u30eb\u306b\u95a2\u3059\u308b\u6587\u66f8\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u660e\u8a18\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u540c\u3058\u5927\u5206\u985e\u306b\u5c5e\u3059\u308b\u5225\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5024\u306b\u57fa\u3065\u3044\u3066\u63a8\u6e2c\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"mcb-vs-mccb-at-a-glance\">DC\u7528MCB\u3068MCCB\u306e\u6bd4\u8f03\u6982\u8981<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>\u8cea\u554f<\/th><th>MCB\u306b\u95a2\u3059\u308b\u691c\u8a0e\u4e8b\u9805<\/th><th>MCCB\u306b\u95a2\u3059\u308b\u8003\u5bdf<\/th><\/tr><\/thead><tbody><tr><td>DIN\u30ec\u30fc\u30eb\u3078\u306e\u53d6\u308a\u4ed8\u3051\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/td><td>\u73fe\u5728\u306eRITOKS\u88fdMCB\u30b7\u30ea\u30fc\u30ba\u306f\u300135mm DIN\u30ec\u30fc\u30eb\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059<\/td><td>\u73fe\u5728\u5e02\u8ca9\u3055\u308c\u3066\u3044\u308bMCCB\u306f\u3001\u30d1\u30cd\u30eb\u53d6\u308a\u4ed8\u3051\uff0f\u56fa\u5b9a\u53d6\u308a\u4ed8\u3051\u65b9\u5f0f\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/td><\/tr><tr><td>1P\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/td><td>\u73fe\u884c\u306eRTS-DC250-125\u30b7\u30ea\u30fc\u30ba\u3067\u5229\u7528\u53ef\u80fd<\/td><td>\u73fe\u5728\u516c\u958b\u3055\u308c\u3066\u3044\u308bMCCB\u30b7\u30ea\u30fc\u30ba\u306f2P\u3067\u3059\u3002<\/td><\/tr><tr><td>\u96fb\u6d41\u306f63A\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u304b\uff1f<\/td><td>RITOKS\u793e\u306e\u73fe\u884cMCB\u88fd\u54c1\u7fa4\u306f\u3001250A\u307e\u3067\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/td><td>\u73fe\u884c\u306eMCCB\u30b7\u30ea\u30fc\u30ba\u306b\u306f\u3001125A\/250A\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/td><\/tr><tr><td>500V\u306e\u76f4\u6d41\u30681000V\u306e\u76f4\u6d41\u3001\u3069\u3061\u3089\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/td><td>\u4e00\u90e8\u306eMCB\u30b7\u30ea\u30fc\u30ba\u3067\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059<\/td><td>\u73fe\u884c\u306eMCCB\u30b7\u30ea\u30fc\u30ba\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059<\/td><\/tr><tr><td>\u96fb\u6d41\u5024\u3060\u3051\u3067\u9078\u629e\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f<\/td><td>\u3044\u3044\u3048<\/td><td>\u3044\u3044\u3048<\/td><\/tr><tr><td>\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u3092\u78ba\u8a8d\u3057\u305f\u307b\u3046\u304c\u3044\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/td><td>\u306f\u3044<\/td><td>\u306f\u3044<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u3042\u308b\u7279\u5b9a\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u7a2e\u985e\u304c\u300c\u3088\u308a\u512a\u308c\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u3053\u3068\u3067\u306f\u306a\u3044\u3002\u201c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u8981\u306a\u8cea\u554f\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u3053\u306e\u76f4\u6d41\u30b7\u30b9\u30c6\u30e0\u306e\u96fb\u6c17\u7684\u8981\u4ef6\u304a\u3088\u3073\u8a2d\u7f6e\u8981\u4ef6\u306b\u9069\u5408\u3059\u308b\u69cb\u9020\u304a\u3088\u3073\u5177\u4f53\u7684\u306a\u6a5f\u7a2e\u306f\u3069\u308c\u3067\u3057\u3087\u3046\u304b\uff1f<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b 1\uff1a\u30b3\u30f3\u30d1\u30af\u30c8\u306aDIN\u30ec\u30fc\u30eb\u5f0fDC\u4fdd\u8b77\u88c5\u7f6e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3001\u6b21\u306e\u3088\u3046\u306a\u8981\u4ef6\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DIN\u30ec\u30fc\u30eb\u7528\u30d6\u30ec\u30fc\u30ab\u30fc<\/li>\n\n\n<li>\u5b9a\u683c\u76f4\u6d41\u96fb\u5727<\/li>\n\n\n<li>\u73fe\u5728\u3001\u5229\u7528\u53ef\u80fd\u306a\u30e2\u30c7\u30eb\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u306b\u304a\u3051\u308b\u8981\u4ef6<\/li>\n\n\n<li>\u652f\u6301\u3055\u308c\u305f\u30dd\u30fc\u30eb\u69cb\u6210<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u5834\u5408\u3001\u516c\u958b\u3055\u308c\u3066\u3044\u308bRITOKS\u793e\u306eMCB\u306e\u4e8b\u4f8b\u3067\u306f35mm DIN\u30ec\u30fc\u30eb\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u307e\u305a\u73fe\u5728\u306eDC\u7528MCB\u30b7\u30ea\u30fc\u30ba\u3092\u8abf\u67fb\u5bfe\u8c61\u3068\u3059\u308b\u306e\u304c\u3088\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001RTS-DC63-1000 \u30d5\u30a1\u30df\u30ea\u30fc\u306b\u306f\u4ee5\u4e0b\u306e\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2P<\/li>\n\n\n<li>500\uff5e1000V DC<\/li>\n\n\n<li>6\u201363A<\/li>\n\n\n<li>35mm DIN\u30ec\u30fc\u30eb<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001\u3053\u308c\u306f\u3001\u305d\u306e\u8868\u984c\u306e\u6570\u5024\u306b\u5408\u81f4\u3059\u308b\u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u81ea\u52d5\u7684\u306b\u9069\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5177\u4f53\u7684\u306a\u7528\u9014\u3084\u88fd\u54c1\u306e\u4ed5\u69d8\u66f8\u306b\u3064\u3044\u3066\u306f\u3001\u6539\u3081\u3066\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b 2\uff1a\u5927\u96fb\u6d41\u5bfe\u5fdc\u306eDIN\u30ec\u30fc\u30eb\u8981\u4ef6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5fc5\u8981\u306a\u96fb\u6d41\u304c\u5927\u304d\u3044\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u5fc5\u305a\u3057\u3082MCCB\u304c\u5fc5\u8981\u306b\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RTS-DC250-125\u306f\u3001\u4ee5\u4e0b\u306e\u7279\u9577\u3092\u5099\u3048\u305f\u3001\u88fd\u54c1\u30ab\u30bf\u30ed\u30b0\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u76f4\u6d41\u7528MCB\u30b7\u30ea\u30fc\u30ba\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1P \/ 2P<\/li>\n\n\n<li>12\uff5e125V DC<\/li>\n\n\n<li>63\uff5e250A<\/li>\n\n\n<li>35mm DIN\u30ec\u30fc\u30eb<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u91cd\u8981\u306a\u4e8b\u4f8b\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u5927\u96fb\u6d41\u306e\u76f4\u6d41\u7528\u9014\u306f\u3059\u3079\u3066\u3001\u81ea\u52d5\u7684\u306b\u30e2\u30fc\u30eb\u30c9\u30b1\u30fc\u30b9\u5f0f\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u79fb\u884c\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u8003\u3048\u3092\u3001\u76f4\u63a5\u7684\u306b\u5426\u5b9a\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u3068\u8a2d\u7f6e\u5f62\u5f0f\u306f\u4f9d\u7136\u3068\u3057\u3066\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b 3\uff1a\u30d1\u30cd\u30eb\u53d6\u4ed8\u578b\u6210\u5f62\u7b50\u4f53\u306e\u8981\u4ef6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3001\u30d1\u30cd\u30eb\uff0f\u56fa\u5b9a\u8a2d\u7f6e\u578b\u306e\u30e2\u30fc\u30eb\u30c7\u30a3\u30f3\u30b0\u30b1\u30fc\u30b9\u5f0f\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u5fc5\u8981\u3068\u3055\u308c\u308b\u5834\u5408\u3001RTS-DCM250-1000\u30b7\u30ea\u30fc\u30ba\u304c\u6709\u529b\u306a\u5019\u88dc\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u69cb\u6210\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2P<\/li>\n\n\n<li>500V\uff0f1000V\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n<li>125A\uff0f250A\u30d5\u30ec\u30fc\u30e0<\/li>\n\n\n<li>\u30d1\u30cd\u30eb\uff0f\u56fa\u5b9a\u5f0f\u53d6\u308a\u4ed8\u3051<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u6700\u7d42\u7684\u306a\u6c7a\u5b9a\u306f\u3001\u5358\u306b\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u540d\u3060\u3051\u3067\u306a\u304f\u3001\u5177\u4f53\u7684\u306b\u9078\u629e\u3055\u308c\u305f\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u304a\u3088\u3073\u78ba\u8a8d\u6e08\u307f\u306e\u88fd\u54c1\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<figure data-spectra-id=\"spectra-5eaf3c6f-6672-4a43-9a1e-dfefefe6dcc3\" class=\"wp-block-image size-full has-custom-border\" ><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context.jpg\" alt=\"\u592a\u967d\u5149\u767a\u96fb\u30fb\u84c4\u96fb\u6c60\u30b7\u30b9\u30c6\u30e0\u304a\u3088\u3073\u7523\u696d\u7528\u76f4\u6d41\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u76f4\u6d41\u906e\u65ad\u5668\u306e\u7528\u9014\" class=\"wp-image-674\" width=\"1672\" height=\"941\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context.jpg 1672w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context-600x338.jpg 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context-300x169.jpg 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context-1024x576.jpg 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context-768x432.jpg 768w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-application-context-1536x864.jpg 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">\u592a\u967d\u5149\u767a\u96fb\u3001\u84c4\u96fb\u6c60\u3001\u304a\u3088\u3073\u7523\u696d\u7528\u76f4\u6d41\u914d\u96fb\u306e\u72b6\u6cc1\u3092\u4f8b\u793a\u3057\u305f\u76f4\u6d41\u96fb\u529b\u74b0\u5883\u3002.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"selection-process\">\u5b9f\u7528\u7684\u306a\u76f4\u6d41\u906e\u65ad\u5668\u306e\u9078\u5b9a\u624b\u9806<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u308a\u59a5\u5f53\u306a\u9078\u5b9a\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7 1 \u2014 \u76f4\u6d41\u96fb\u5727\u3092\u5b9a\u7fa9\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30e2\u30c7\u30eb\u3092\u6bd4\u8f03\u3059\u308b\u524d\u306b\u3001\u5b9f\u969b\u306e\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7 2 \u2014 \u52d5\u4f5c\u96fb\u6d41\u306e\u6c7a\u5b9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5fc5\u8981\u306a\u96fb\u6d41\u5024\u3092\u5165\u529b\u3057\u3066\u3001\u5bfe\u8c61\u3068\u306a\u308b\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u7d5e\u308a\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7 3 \u2014 \u6975\u6570\u306e\u8981\u4ef6\u3092\u5b9a\u7fa9\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u56de\u8def\u306b\u3001\u9078\u629e\u3057\u305f\u30d5\u30a1\u30df\u30ea\u30fc\u3067\u73fe\u5728\u5229\u7528\u53ef\u80fd\u306a\u69cb\u6210\u304c\u5fc5\u8981\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7 4 \u2014 \u53d6\u308a\u4ed8\u3051\u5f62\u5f0f\u3092\u6c7a\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u8a2d\u5099\u304c\u4ee5\u4e0b\u306e\u70b9\u3092\u8003\u616e\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>35mm DIN\u30ec\u30fc\u30eb<\/li>\n\n\n<li>\u30d1\u30cd\u30eb\uff0f\u56fa\u5b9a\u5f0f\u53d6\u308a\u4ed8\u3051<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7 5 \u2014 \u5019\u88dc\u30e2\u30c7\u30eb\u3092\u6bd4\u8f03\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u96fb\u5727\u3001\u96fb\u6d41\u3001\u6975\u6570\u3001\u304a\u3088\u3073\u53d6\u308a\u4ed8\u3051\u69cb\u6210\u304c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u3068\u4e00\u81f4\u3059\u308b\u88fd\u54c1\u306e\u307f\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7 6 \u2014 \u6b63\u78ba\u306a\u66f8\u985e\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u308b\u30e2\u30c7\u30eb\u306e\u96fb\u6c17\u7684\u7279\u6027\u3001\u4ed8\u5c5e\u54c1\u3001\u307e\u305f\u306f\u6027\u80fd\u306b\u95a2\u3059\u308b\u4e3b\u5f35\u3092\u3001\u5225\u306e\u30e2\u30c7\u30eb\u306b\u5f53\u3066\u306f\u3081\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<figure data-spectra-id=\"spectra-ad5d0c98-30b1-4d00-a305-e973f815fbec\" class=\"wp-block-image size-full has-custom-border\" ><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow.jpg\" alt=\"\u96fb\u5727\u3001\u96fb\u6d41\u3001\u6975\u6570\u3001\u53d6\u308a\u4ed8\u3051\u65b9\u6cd5\u3001\u304a\u3088\u3073\u6b63\u78ba\u306a\u6a5f\u7a2e\u306e\u78ba\u8a8d\u306b\u57fa\u3065\u304fDC\u7528\u906e\u65ad\u5668\u306e\u9078\u5b9a\u30d5\u30ed\u30fc\" class=\"wp-image-673\" width=\"1672\" height=\"941\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow.jpg 1672w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow-600x338.jpg 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow-300x169.jpg 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow-1024x576.jpg 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow-768x432.jpg 768w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/dc-circuit-breaker-selection-flow-1536x864.jpg 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">\u96fb\u5727\u3001\u96fb\u6d41\u3001\u6975\u6570\u3001\u53d6\u308a\u4ed8\u3051\u5f62\u5f0f\u3001\u304a\u3088\u3073\u6b63\u78ba\u306a\u6a5f\u7a2e\u306e\u78ba\u8a8d\u306b\u57fa\u3065\u3044\u305f\u3001\u5b9f\u7528\u7684\u306a\u76f4\u6d41\u7528\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u5b9a\u30d5\u30ed\u30fc\u3002.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"common-mistakes\">MCB\u3068MCCB\u306e\u9078\u5b9a\u306b\u304a\u3051\u308b\u3088\u304f\u3042\u308b\u9593\u9055\u3044<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u56fa\u5b9a\u96fb\u6d41\u95be\u5024\u306e\u4f7f\u7528<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u3001\u7d76\u5bfe\u306b\u907f\u3051\u308b\u3079\u304d\u6700\u3082\u91cd\u5927\u306a\u9593\u9055\u3044\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306eRITOKS\u88fd\u54c1\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\u306b\u306f\u3001\u3059\u3067\u306b\u96fb\u6d41\u5b9a\u683c\u304c\u91cd\u8907\u3059\u308bMCB\u304a\u3088\u3073MCCB\u88fd\u54c1\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u76f4\u6d41\u96fb\u5727\u3092\u7121\u8996\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u96fb\u6d41\u8981\u4ef6\u306b\u9069\u5408\u3059\u308b\u30d6\u30ec\u30fc\u30ab\u30fc\u3067\u3042\u3063\u3066\u3082\u3001\u96fb\u5727\u7cfb\u7d71\u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30de\u30a6\u30f3\u30c8\u5f62\u5f0f\u3092\u7121\u8996\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DIN\u30ec\u30fc\u30eb\u53d6\u308a\u4ed8\u3051\u578b\u306eMCB\u3068\u30d1\u30cd\u30eb\u53d6\u308a\u4ed8\u3051\u578b\u306eMCCB\u3067\u306f\u3001\u8a2d\u7f6e\u65b9\u6cd5\u304c\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3059\u3079\u3066\u306e\u88fd\u54c1\u30b7\u30ea\u30fc\u30ba\u306e\u6975\u6570\u304c\u540c\u3058\u3060\u3068\u601d\u3044\u8fbc\u3080<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306e\u69cb\u6210\u306f\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u3054\u3068\u306b\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u672a\u78ba\u8a8d\u306e\u7a81\u767a\u7684\u306a\u51e6\u7406\u80fd\u529b\u3092\u60f3\u5b9a\u3057\u305f\u5834\u5408<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u906e\u65ad\u5bb9\u91cf\u306e\u30c7\u30fc\u30bf\u306f\u3001\u78ba\u8a8d\u6e08\u307f\u306e\u7279\u5b9a\u306e\u30e2\u30c7\u30eb\u307e\u305f\u306f\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u306b\u7d10\u3065\u3051\u3089\u308c\u305f\u307e\u307e\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002MCB\u304a\u3088\u3073MCCB\u306e\u5404\u30b7\u30ea\u30fc\u30ba\u5168\u4f53\u306b\u4e00\u822c\u5316\u3057\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u65c5\u884c\u7528\u6a5f\u80fd\u3084\u30a2\u30af\u30bb\u30b5\u30ea\u30fc\u3092\u60f3\u5b9a\u3057\u3066<\/h3>\n\n\n\n<p 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class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u95a2\u6570\u306e\u9055\u3044\u306e\u6982\u8981\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/ja\/dc-protection-devices-explained\/\"><strong>DC\u4fdd\u8b77\u88c5\u7f6e\u306e\u89e3\u8aac\uff1a\u56de\u8def\u906e\u65ad\u5668\u3001\u30d2\u30e5\u30fc\u30ba\u3001\u7d76\u7e01\u30b9\u30a4\u30c3\u30c1\u3001\u304a\u3088\u3073SPD<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u3001\u30d2\u30e5\u30fc\u30ba\u3001\u7d76\u7e01\u30b9\u30a4\u30c3\u30c1\u3001\u304a\u3088\u3073SPD\u3092\u3001\u81ea\u52d5\u7684\u306b\u4e92\u63db\u6027\u306e\u3042\u308b\u6a5f\u5668\u3068\u3057\u3066\u6271\u3063\u3066\u306f\u306a\u3089\u306a\u3044\u7406\u7531\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 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href=\"https:\/\/ritoks.com\/ja\/product-category\/dc-power-protection\/dc-circuit-breakers\/\">DC\u7528\u906e\u65ad\u5668\u3092\u898b\u308b \u2192<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/ritoks.com\/ja\/contact-us\/\">RITOKS\u3078\u306e\u304a\u554f\u3044\u5408\u308f\u305b \u2192 \u304a\u898b\u7a4d\u308a\u4f9d\u983c<\/a><\/div>\n<\/div>\n<\/div>\n\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>How to Choose a DC Circuit Breaker: MCB vs MCCB Choosing between a DC miniature circuit breaker (MCB) and a 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