{"product_id":"westinghouse-br340st-40a-3p-240v-circuit-breaker","title":"Westinghouse BR340ST 40A 3P 240V Circuit Breaker, Type BR, Plug-On, Shunt Trip | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWestinghouse BR340ST\u003c\/strong\u003e is a 40 A, 3-pole, 240 V circuit breaker designed for reliable circuit protection in panelboards, load centers, and electrical distribution systems. Built for everyday electrical work, it’s the smart choice for professionals who need a direct part-number match and dependable performance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType BR\u003c\/strong\u003e circuit breaker—fits BR-series panels for seamless replacement\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-On\u003c\/strong\u003e mounting for quick, solid bus-bar connection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShunt Trip\u003c\/strong\u003e enables remote tripping for emergency shutdowns and automated safety controls\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e BR340ST\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e Westinghouse\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailability\u003c\/strong\u003e from AmpState\u003c\/li\u003e \u003cli\u003eIdeal for \u003cstrong\u003emaintenance teams\u003c\/strong\u003e, \u003cstrong\u003epanel builders\u003c\/strong\u003e, and spare inventory where a direct part-number match matters\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse BR340ST to protect wiring and equipment in commercial spaces, light industrial setups, or data-center infrastructure. Its plug-on design speeds installation, while the 3-pole configuration provides balanced protection across all phases in a 240 V system. The integrated shunt-trip capability adds a critical layer of safety: you can initiate a remote trip to stop power delivery during faults, maintenance, or mandated emergency procedures without opening the enclosure.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhat sets this breaker apart\u003c\/strong\u003e is the combination of a genuine Westinghouse BR-series performance with a plug-on, remote-trip capability in a compact 3-pole 240 V package. It’s a precise fit for existing BR panels, reducing the risk of compatibility issues and unwind time during replacements or upgrades. This makes it an excellent choice for stocking as a reliable spare—ensuring you’re prepared to keep critical circuits protected with confidence.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWho should consider the BR340ST\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacility managers and electricians maintaining panelboards and load centers\u003c\/li\u003e \u003cli\u003ePanel builders sourcing exact-part replacements for BR-series installations\u003c\/li\u003e \u003cli\u003eMaintenance inventories needing a dependable, ready-to-install 3P 240V breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re unsure about fit, AmpState offers assistance to confirm compatibility and part-number match. \u003cstrong\u003eNeed help matching a part number or confirming compatibility?\u003c\/strong\u003e Message us and we’ll help you confirm fit. Add the Westinghouse BR340ST to your toolkit for fast, reliable protection that you can count on when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410857513122,"sku":"BR340ST","price":696.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/westinghouse-br340st-40a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}