{"product_id":"eaton-kd3125-125a-600v-3-pole-circuit-breaker","title":"Eaton KD3125 - 125 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton KD3125 is a dependable 125 A, 600 V, 3-pole molded case circuit breaker designed to protect your panelboards and loadcenters with precision and resilience. Built for today’s mixed electrical environments, this breaker delivers consistent overcurrent and short-circuit protection where it matters most—in residential, commercial, and light industrial applications.\u003c\/p\u003e \u003cp\u003eWhy this breaker stands out\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space, letting you fit more circuits without sacrificing protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across varying loads and ambient conditions—reducing nuisance trips while staying responsive in fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is engineered for seamless integration with matching Eaton loadcenters and panelboards, ensuring proper fit, coordinated protection, and easier replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile performance\u003c\/strong\u003e suits residential service panels, commercial distribution boards, and light industrial feeder circuits, offering a reliable solution for a range of projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTechnical snapshot you can rely on\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e KD3125\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical use cases to consider\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrade an aging or undersized breaker in a residential or light commercial panel to safely support a 3-phase equipment load up to 125 A.\u003c\/li\u003e \u003cli\u003eFeed a subpanel in a workshop or small warehouse where space efficiency and reliable protection are critical.\u003c\/li\u003e \u003cli\u003eCoordinate protection for 3‑phase motors or equipment in panels that require a compatible, robust molded case breaker.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Eaton KD3125, you’re choosing a solution designed for predictable performance, easy cross-compatibility with Eaton loadcenters, and the lasting reliability needed for daily electrical operations. If you’re configuring or refreshing a panel, this 3-pole, 125 A, 600 V MCCB delivers targeted protection where it counts—keeping circuits safe, panels organized, and systems up and running.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349626212514,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_99e01359-5d04-45bb-b25b-e73cbbae1a6f.png?v=1764151784","url":"https:\/\/www.ampstate.com\/products\/eaton-kd3125-125a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}