{"product_id":"westinghouse-jb3125-circuit-breaker","title":"Westinghouse | JB3125 | Circuit Breaker | 125A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing Westinghouse JB3125, a purpose-built 3-pole circuit breaker designed for reliable protection in 3-phase electrical systems. With a 125A rating and a 600V maximum, this unit is built to handle demanding maintenance, retrofit, and replacement projects where precise specifications matter.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e JB3125\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e maintenance, retrofit, and replacement within compatible electrical panels\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the JB3125 for your electrical system\u003c\/h3\u003e\n\u003cp\u003eThe JB3125 delivers a precise spec match for compatible Westinghouse panels and 3-phase distribution setups. Its three-pole design ensures simultaneous disconnection of all three hot conductors, which is essential for safely interrupting power on 3-phase circuits. Built for reliability, this breaker is a dependable choice when you need a direct replacement or a retrofit that preserves the original electrical architecture.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePanel maintenance where a like-for-like replacement is required to maintain system integrity\u003c\/li\u003e \u003cli\u003eRetrofit projects that upgrade or expand 3-phase electrical capacity while preserving existing protection schemes\u003c\/li\u003e \u003cli\u003eNew installations in industrial or commercial settings that require a 125A, 3-pole, 600V protection device\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to ensure a perfect fit\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure seamless compatibility. The JB3125 part number is the best reference for compatibility with your specific Westinghouse panel and 3-phase configuration.\u003c\/p\u003e \u003ch3\u003ePractical installation and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the panel and follow lockout\/tagout procedures before replacing a breaker\u003c\/li\u003e \u003cli\u003eVerify that your panel is rated for 125A and 600V to prevent nuisance trips or unsafe operation\u003c\/li\u003e \u003cli\u003eHandle the breaker with care to maintain terminal integrity and ensure solid electrical connections\u003c\/li\u003e \u003cli\u003eKeep a record of the part number (JB3125) for future maintenance or reordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427252621474,"sku":"JB3125","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/westinghouse-jb3125-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}