{"product_id":"eaton-faz-b4-3","title":"Eaton FAZ-B4\/3 4A 3-Pole 277 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton FAZ-B4\/3 4A 3-Pole 277 V Circuit Breaker — a purpose-built protection device for commercial, three-phase electrical systems. With a 4-amp rating and three poles, this breaker is crafted to safeguard 277 V circuits, delivering dependable performance where precise protection matters most.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 4 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage rating: 277 V\u003c\/li\u003e \u003cli\u003ePart number: FAZ-B4\/3\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOEM compatibility within Eaton FAZ-series panels, making replacements straightforward and reliable\u003c\/li\u003e \u003cli\u003eThree-pole design protects all phases in 277 V systems, reducing the risk of partial faults affecting the whole circuit\u003c\/li\u003e \u003cli\u003e4 A rating targets low to moderate load scenarios, providing precise protection for lighting, small motors, and related equipment in commercial environments\u003c\/li\u003e \u003cli\u003eBuilt for consistent performance in 3-phase distributions common to offices, retail spaces, and educational facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e277 V three-phase lighting and small equipment distributions in commercial buildings\u003c\/li\u003e \u003cli\u003eHVAC controls, fans, and modest 3-phase motor loads that require reliable overload protection\u003c\/li\u003e \u003cli\u003ePanel retrofit or expansion within Eaton FAZ-series installations to maintain uniform protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility notes\u003c\/h3\u003e\n\u003cp\u003eDesigned for use in Eaton FAZ-series panels and other assemblies that support FAZ-B4\/3 form factors. When installing, follow panel manufacturer guidelines and replace like-for-like amperage to preserve coordinated protection across the distribution system. Ensure the 277 V rating matches your system design, and verify that the three-pole configuration aligns with the three-phase circuitry in your enclosure.\u003c\/p\u003e \u003cp\u003eWith the FAZ-B4\/3, you get a purpose-built, three-pole protection device from a trusted brand, engineered to keep your commercial 277 V circuits safe, reliable, and easy to service.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46423243128994,"sku":"FAZ-B4\/3","price":540.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/eaton-faz-b4-3","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}