{"product_id":"westinghouse-hlb3400-circuit-breaker","title":"Westinghouse | HLB3400 | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Westinghouse HLB3400 3-Pole Circuit Breaker — a purpose-built solution for maintenance, retrofit, and replacement projects where exact specs matter. This 3-Pole unit delivers dependable overcurrent protection across three conductors in compatible panels, backed by the trusted Westinghouse reputation for reliability and safety.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HLB3400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Westinghouse\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy the exact part number matters: Using HLB3400 as your reference minimizes the risk of mismatched trip curves, mounting styles, or ratings. This reduces installation time and ensures your panel maintains proper protection and code compliance.\u003c\/p\u003e \u003ch3\u003eWho benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical technicians performing panel maintenance or upgrades\u003c\/li\u003e \u003cli\u003eFacilities teams replacing worn breakers in commercial or industrial environments\u003c\/li\u003e \u003cli\u003eContractors supplying spare parts for service calls\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed 3-pole breaker in a Westinghouse or compatible panel\u003c\/li\u003e \u003cli\u003eRetrofits where a three-pole protection is required for 3-phase or multi-wire circuits\u003c\/li\u003e \u003cli\u003eStocking a ready-to-install component for quick service restoration\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to ensure compatibility\u003c\/h3\u003e\n\u003col\u003e \u003cli\u003eCheck the panel’s labeling for compatible breaker family and amperage rating.\u003c\/li\u003e \u003cli\u003eMatch the exact part number (HLB3400) to avoid incompatibilities in mounting or trip characteristics.\u003c\/li\u003e \u003cli\u003eVerify the mounting style and bus configuration supported by your panel.\u003c\/li\u003e \u003cli\u003eConfirm the breaker’s amperage rating and trip curve align with your system requirements.\u003c\/li\u003e\n\u003c\/ol\u003e \u003cp\u003eIf you’re aiming for reliable performance and straightforward maintenance in your electrical system, the Westinghouse HLB3400 3-Pole Circuit Breaker is a solid, ready-to-install choice. It’s designed to slot into existing Westinghouse-compatible panels where three-pole protection is needed, helping you minimize downtime and keep critical circuits protected.\u003c\/p\u003e \u003cp\u003eNote: Always confirm fit and ratings before ordering. The part number is the best reference for compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427264614562,"sku":"HLB3400","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-hlb3400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}