{"product_id":"westinghouse-mc3400m-circuit-breaker","title":"Westinghouse | MC3400M | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse MC3400M, a purpose-built 400A circuit breaker engineered for demanding electrical systems. With a 3-pole design rated for 600V, this unit is tailored for maintenance, retrofit, and replacement projects where exact specifications matter—delivering dependable overcurrent protection that aligns with your existing infrastructure.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e MC3400M\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest use:\u003c\/strong\u003e maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility reminder:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number \u003cstrong\u003eMC3400M\u003c\/strong\u003e is the most reliable reference for ensuring a seamless match with your panel or enclosure.\u003c\/p\u003e \u003ch3\u003eWhy this Westinghouse breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDrop-in suitability for systems designed around the MC3400M specification, reducing现场 downtime during replacements or upgrades.\u003c\/li\u003e \u003cli\u003ePrecise 400A capacity paired with a 3-pole configuration supports multi-branch protection in compact, organized distribution assemblies.\u003c\/li\u003e \u003cli\u003e600V rating provides clear alignment with mid- to high-voltage industrial and commercial panels, helping maintain system integrity under fault conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and who benefits\u003c\/h3\u003e\n\u003cp\u003eThis breaker is a strategic choice for facility managers, electrical contractors, and maintenance teams overseeing Westinghouse-based electrical distributions. It’s particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacement in panels that originally specified MC3400M or compatible Westinghouse units\u003c\/li\u003e \u003cli\u003eRetrofits where upgrading to a higher amperage or different configuration isn’t feasible without preserving the exact electrical characteristics\u003c\/li\u003e \u003cli\u003eStocking spare parts for critical infrastructure to minimize downtime when servicing 3-pole, 400A, 600V protection schemes\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the MC3400M, you’re not just replacing a breaker—you’re preserving the reliability and continuity of your electrical system. Always verify the panel’s model and the board’s configuration to ensure the part aligns perfectly with your installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427174469794,"sku":"MC3400M","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-mc3400m-circuit-breaker-400a-3-pole-600v-847.webp?v=1789677697","url":"https:\/\/www.ampstate.com\/products\/westinghouse-mc3400m-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}