{"product_id":"eaton-bj3125-bj-thermal-magnetic-circuit-breaker-125a-3-pole-240v","title":"Eaton BJ3125 BJ Thermal Magnetic Circuit Breaker – 125A, 3-Pole, 240V","description":"\u003cdiv class=\"relative w-full overflow-visible\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69f9bb50-bfa0-83e8-b363-9cff326b8a49-2\" data-turn-id-container=\"request-69f9bb50-bfa0-83e8-b363-9cff326b8a49-2\" data-testid=\"conversation-turn-282\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"deabd616-0cda-4771-9117-261d4571538c\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-start=\"128\" data-end=\"656\"\u003eThe Eaton BJ3125 is a thermal magnetic circuit breaker designed for residential and light commercial loadcenter applications. This three-pole breaker provides reliable overcurrent and short-circuit protection and features a plug-on mounting design for secure installation. It is intended for use in a minimum 150A loadcenter and occupies designated pole spaces on both sides of the loadcenter. The unit is UL 489 listed and compliant with Federal Specification W-C375 for safe and dependable operation.\u003c\/p\u003e\n\u003cp data-start=\"663\" data-end=\"685\"\u003e\u003cstrong data-start=\"663\" data-end=\"685\"\u003eVoltage and Rating\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"687\" data-end=\"916\"\u003e\n\u003cli data-section-id=\"19f0sh8\" data-start=\"687\" data-end=\"711\"\u003eCurrent Rating: 125A\u003c\/li\u003e\n\u003cli data-section-id=\"so388g\" data-start=\"712\" data-end=\"736\"\u003eVoltage Rating: 240V\u003c\/li\u003e\n\u003cli data-section-id=\"13m4ppw\" data-start=\"737\" data-end=\"766\"\u003eInterrupt Rating: 10 kAIC\u003c\/li\u003e\n\u003cli data-section-id=\"bad5e\" data-start=\"767\" data-end=\"794\"\u003eNumber of Poles: 3-Pole\u003c\/li\u003e\n\u003cli data-section-id=\"19kvpt4\" data-start=\"795\" data-end=\"829\"\u003eTrip Type: Common breaker trip\u003c\/li\u003e\n\u003cli data-section-id=\"1au4jpa\" data-start=\"830\" data-end=\"858\"\u003eCircuit Breaker Type: BJ\u003c\/li\u003e\n\u003cli data-section-id=\"1agsd1p\" data-start=\"859\" data-end=\"887\"\u003eMain Circuit Breaker: BJ\u003c\/li\u003e\n\u003cli data-section-id=\"76edh\" data-start=\"888\" data-end=\"916\"\u003eMounting Method: Plug-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"923\" data-end=\"945\"\u003e\u003cstrong data-start=\"923\" data-end=\"945\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"947\" data-end=\"1439\"\u003e\n\u003cli data-section-id=\"104z54j\" data-start=\"947\" data-end=\"970\"\u003eManufacturer: Eaton\u003c\/li\u003e\n\u003cli data-section-id=\"q1bciw\" data-start=\"971\" data-end=\"997\"\u003eCatalog Number: BJ3125\u003c\/li\u003e\n\u003cli data-section-id=\"1jvp0o\" data-start=\"998\" data-end=\"1048\"\u003eProduct Type: Thermal Magnetic Circuit Breaker\u003c\/li\u003e\n\u003cli data-section-id=\"236egc\" data-start=\"1049\" data-end=\"1094\"\u003eType: Type BJ 1-inch plug-on main breaker\u003c\/li\u003e\n\u003cli data-section-id=\"uw6rxu\" data-start=\"1095\" data-end=\"1121\"\u003eCertifications: UL 489\u003c\/li\u003e\n\u003cli data-section-id=\"zw9vhy\" data-start=\"1122\" data-end=\"1183\"\u003eCompliances: Federal Specifications Classification W-C375\u003c\/li\u003e\n\u003cli data-section-id=\"wm0lgn\" data-start=\"1184\" data-end=\"1339\"\u003eCatalog Notes: Requires at least a 150A loadcenter; uses three 1-inch pole spaces on left side and three 1-inch pole spaces on right side of loadcenter\u003c\/li\u003e\n\u003cli data-section-id=\"1g0j9sd\" data-start=\"1340\" data-end=\"1377\"\u003eWire Size: #2 AWG–300 kcmil Cu\/Al\u003c\/li\u003e\n\u003cli data-section-id=\"98pchm\" data-start=\"1378\" data-end=\"1439\"\u003eWarranty: Limited lifetime residential, 1 year commercial\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1446\" data-end=\"1466\"\u003e\u003cstrong data-start=\"1446\" data-end=\"1466\"\u003ePhysical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1468\" data-end=\"1578\"\u003e\n\u003cli data-section-id=\"1vytw4f\" data-start=\"1468\" data-end=\"1498\"\u003eProduct Length\/Depth: 8 in\u003c\/li\u003e\n\u003cli data-section-id=\"19v4z4e\" data-start=\"1499\" data-end=\"1525\"\u003eProduct Height: 3.5 in\u003c\/li\u003e\n\u003cli data-section-id=\"fw0smv\" data-start=\"1526\" data-end=\"1551\"\u003eProduct Width: 3.5 in\u003c\/li\u003e\n\u003cli data-section-id=\"1mycyk9\" data-start=\"1552\" data-end=\"1578\"\u003eProduct Weight: 2.5 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1585\" data-end=\"1601\"\u003e\u003cstrong data-start=\"1585\" data-end=\"1601\"\u003eProduct Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1603\" data-end=\"1806\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1fwlrh6\" data-start=\"1603\" data-end=\"1674\"\u003eApplication: Residential and light commercial loadcenter protection\u003c\/li\u003e\n\u003cli data-section-id=\"zsrq5\" data-start=\"1675\" data-end=\"1716\"\u003eMounting Style: Plug-on configuration\u003c\/li\u003e\n\u003cli data-section-id=\"2ls1gj\" data-start=\"1717\" data-end=\"1768\"\u003eSystem Use: Loadcenter main breaker integration\u003c\/li\u003e\n\u003cli data-section-id=\"vm3de5\" data-start=\"1769\" data-end=\"1806\" data-is-last-node=\"\"\u003eFrame Type: BJ series compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"contents\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Eaton Cutler-Hammer","offers":[{"title":"NEW","offer_id":48383312724217,"sku":"BJ3125","price":826.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/BJ3125_C.jpg?v=1778438957","url":"https:\/\/mycircuitbreakers.com\/products\/eaton-bj3125-bj-thermal-magnetic-circuit-breaker-125a-3-pole-240v","provider":"My Circuit Breakers","version":"1.0","type":"link"}