{"product_id":"eaton-faz-b4-2-na","title":"Eaton FAZ-B4\/2-NA 4A 2-Pole 277 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton \u003cstrong\u003eFAZ-B4\/2-NA\u003c\/strong\u003e 4A 2-Pole 277 V Circuit Breaker is a compact, dual-pole overcurrent protection device designed for 277-volt branch circuits in commercial electrical systems. With a 4‑ampere rating and two poles, it quickly detects overloads on both hot legs and trips to safeguard equipment and wiring.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: \u003cstrong\u003e4 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePoles: \u003cstrong\u003e2\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage rating: \u003cstrong\u003e277 V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePart number: \u003cstrong\u003eFAZ-B4\/2-NA\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Eaton breaker matters\u003c\/h3\u003e\n\u003cp\u003eDesigned as part of Eaton’s FAZ family, this breaker delivers reliable protection for 277V distribution networks in busy commercial environments. The dual-pole design provides coordinated shutoff of both conductors, helping maintain system safety and preventing partial faults that can disrupt multi-wire branch circuits. Built for consistent performance, it supports dependable response when circuits exceed their rating, reducing the risk of damage to connected equipment.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect 277V lighting and small-power circuits in offices, retail spaces, schools, and other commercial facilities.\u003c\/li\u003e \u003cli\u003eReplace aging or faulty breakers in compatible panels to restore safe, code-compliant protection for 277V loads.\u003c\/li\u003e \u003cli\u003eImplement a compact, two-pole solution for new installations requiring reliable dual-leg protection on 277V circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eEnsure the panel and circuit design are rated for 277V operation and compatible with two-pole breakers. Follow local electrical codes and use proper safety procedures during installation. The FAZ-B4\/2-NA is a purpose-built component for Eaton-based systems, so verify fitment within the intended distribution panel and circuit plan.\u003c\/p\u003e \u003cp\u003eReady to safeguard your 277V circuits with precise, dependable protection? Add the Eaton FAZ-B4\/2-NA 4A 2-Pole 277 V Circuit Breaker to your panel today.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46423037575330,"sku":"FAZ-B4\/2-NA","price":646.0,"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-b4-2-na","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}