{"product_id":"eaton-faz-b51-na-circuit-breaker","title":"Eaton | FAZ-B5\/1-NA | Circuit Breaker | 5A | 1-Pole | 277V","description":"\u003cdiv\u003e\n\u003ch2\u003eEaton FAZ-B5\/1-NA 5A, 1-Pole Circuit Breaker for 277V\u003c\/h2\u003e\n\u003cp\u003eProtect critical 277-volt circuits with precision using the Eaton FAZ-B5\/1-NA circuit breaker. Designed for maintenance, retrofit, and replacement projects where exact specifications are essential, this unit delivers dependable single-pole overcurrent protection in a compact 5-amp package.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 5A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: FAZ-B5\/1-NA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest reference for compatibility\u003c\/strong\u003e: The part number FAZ-B5\/1-NA is the most reliable identifier—always confirm fit and ratings on your equipment before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this exact FAZ-B5\/1-NA matters\u003c\/h3\u003e\n\u003cp\u003eIn electrical assemblies, a direct-fit breaker preserves panel labeling, trip characteristics, and overall system reliability. The FAZ-B5\/1-NA is specifically suited for 277V circuits and single-pole configurations, making it an ideal choice for lighting runs, auxiliary power feeds, or other 277V applications that require precise amperage control without adding unnecessary bulk.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: replace a failed 5A, 1-pole breaker in existing 277V panels without altering other components.\u003c\/li\u003e \u003cli\u003eRetrofit: upgrade legacy circuits to a modern, compatible FAZ series breaker that matches original ratings.\u003c\/li\u003e \u003cli\u003eReplacement: substitute a worn or incompatible unit with a part-number-specific option to maintain panel integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to verify compatibility\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, compare your panel’s labeling and the device’s specifications to ensure a seamless fit. Rely on the FAZ-B5\/1-NA part number as the primary compatibility reference, and verify that the circuit’s voltage and amperage requirements align with 277V, 5A, and 1-pole configuration.\u003c\/p\u003e \u003ch3\u003ePractical insights\u003c\/h3\u003e\n\u003cp\u003eUsing the exact FAZ-B5\/1-NA helps maintain consistent electrical protection and reduces the risk of incompatibility that can occur with generic substitutes. Keep a copy of the matching part number on hand for future maintenance and ordering to streamline replacements and keep your electrical system operating smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426837319842,"sku":"FAZ-B5\/1-NA","price":208.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-faz-b5-1-na-circuit-breaker-5a-1-pole-277v-834.webp?v=1789631348","url":"https:\/\/www.ampstate.com\/products\/eaton-faz-b51-na-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}