{"product_id":"hef213040-circuit-breaker","title":"HEF213040 | Circuit Breaker | 40A | 1-Pole | 277V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the HEF213040 industrial circuit breaker — a precise 40A, 1-Pole device designed for demanding electrical environments. Built for maintenance, retrofit, and replacement projects, this breaker delivers dependable circuit protection in 277V systems while keeping compatibility top of mind.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\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\n\u003c\/ul\u003e \u003ch3\u003eWhat makes the HEF213040 unique\u003c\/h3\u003e\n\u003cp\u003eUnlike generic replacements, the HEF213040 is specifically identified by its part number, making compatibility checks straightforward for industrial panels and legacy installations. Its 1-Pole design is ideal for protecting individual branch circuits in commercial or light industrial spaces, and the 277V rating aligns with common distribution for lighting and control circuits. This combination — precise amperage, single-pole protection, and 277V capability — helps you maintain safe, reliable operation without over-engineering your panel.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service when an existing 40A, 1-Pole breaker needs replacement\u003c\/li\u003e \u003cli\u003eRetrofit projects where a like-for-like specification is required to fit into existing panels\u003c\/li\u003e \u003cli\u003eSpare parts for industrial electrical rooms that run 277V distribution\u003c\/li\u003e \u003cli\u003eProtection of individual lighting or control circuits in commercial facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy it matters for your project\u003c\/h3\u003e\n\u003cp\u003eChoosing the correct part number is the quickest path to a trouble-free install. For the HEF213040, the part number is the best reference to ensure you’re matching the exact fit, rating, and pole configuration your panel requires. Before ordering, verify:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage match: 40A\u003c\/li\u003e \u003cli\u003ePole count: 1-Pole\u003c\/li\u003e \u003cli\u003eVoltage rating: 277V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation guidance\u003c\/h3\u003e\n\u003cp\u003eTo minimize downtime and ensure proper protection, cross-check your current breaker against the HEF213040’s specs and the panel label. When in doubt, use the part number as your primary reference, and confirm that the physical form, mounting scheme, and terminal connections align with your enclosure. If your system feeds 277V circuits or lighting-control circuits, this 1-Pole, 40A device is well-suited to restore reliable, code-respecting protection.\u003c\/p\u003e \u003cp\u003eReady to secure your circuits with a dependable replacement? The HEF213040 is designed to meet the exacting requirements of maintenance, retrofit, and replacement projects, delivering targeted protection where it’s needed most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426442137762,"sku":"HEF213040","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/hef213040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}