{"product_id":"hef435040-circuit-breaker","title":"HEF435040 | Circuit Breaker | 40A | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet HEF435040, a rugged industrial circuit breaker engineered for reliability in 480V three-phase power systems. With a 40A rating across 3 poles, it provides precise overload protection for feeders, motors, and distribution circuits in maintenance, retrofit, and replacement projects.\u003c\/p\u003e \u003ch3\u003eWhy choose HEF435040\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A — designed to protect circuits with typical loads up to 40 amps in 480V systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole — ensures simultaneous protection of all three phases, maintaining balanced protection and trip coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480V — suitable for industrial 3-phase distribution networks common in manufacturing, processing, and large facilities.\u003c\/li\u003e \u003cli\u003eIndustrial-grade construction tailored for demanding environments where dependable protection is essential.\u003c\/li\u003e \u003cli\u003eBest compatibility reference is the exact part number \u003cstrong\u003eHEF435040\u003c\/strong\u003e, and you should confirm fit and ratings before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eThis circuit breaker is ideal for scenarios where exact spec matching matters: upgrading legacy panels to 480V three-phase systems, retrofitting equipment with current protection, or replacing a failed breaker in critical process lines. It’s well-suited for motor feeders, transformers, and branch circuits that require reliable protection at 480V.\u003c\/p\u003e \u003ch3\u003eHow to verify compatibility\u003c\/h3\u003e\n\u003cp\u003eBecause panel configurations vary, the \u003cstrong\u003eHEF435040\u003c\/strong\u003e reference is your best guide for compatibility. Before purchasing, verify the breaker’s physical fit, mounting style, and ratings match your panel’s requirements and the upstream supply.\u003c\/p\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways order using the exact part number to avoid mismatches in panel compatibility.\u003c\/li\u003e \u003cli\u003eConsult your panel documentation for acceptable breaker types, frame size, and trip characteristics to ensure coordinated protection with other devices.\u003c\/li\u003e \u003cli\u003eKeep spare components if applicable and review any panel-specific installation guidelines to ensure a safe, compliant setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426441253026,"sku":"HEF435040","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/hef435040-circuit-breaker-40a-3-pole-480v-437.webp?v=1789577943","url":"https:\/\/www.ampstate.com\/products\/hef435040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}