{"product_id":"sylvania-seh1c040-circuit-breaker","title":"Sylvania | SEH1C040 | Circuit Breaker | 40A | 1-Pole | 277V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSylvania SEH1C040\u003c\/strong\u003e is a purpose-built 40A, 1-Pole circuit breaker designed for 277V circuits in commercial and industrial electrical systems. This unit is the reliable choice for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring your panel continues to protect people and equipment with precise overcurrent protection.\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 \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e SEH1C040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker matters\u003c\/h3\u003e\n\u003cp\u003e277V circuits are common in many commercial environments, and choosing the exact part number helps maintain correct trip characteristics, compatibility with panel bus systems, and compliance with safety standards. The Sylvania SEH1C040 is purpose-built to deliver dependable protection for these applications, reducing the risk of mismatched breakers that can lead to nuisance trips or improper protection.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRoutine maintenance on panels serving 277V circuits (lighting, HVAC feeders, equipment rooms).\u003c\/li\u003e \u003cli\u003eRetrofit projects where existing infrastructure requires 40A, single-pole protection without altering panel configuration.\u003c\/li\u003e \u003cli\u003eReplacement of aging breakers in systems that specify 277V, 1-Pole, 40A protection to maintain intended safety margins.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to ensure a correct fit\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm the panel labeling matches 277V, 40A, 1-Pole requirements. The SEH1C040 part number is the most reliable reference for compatibility with Sylvania-equipped panels and systems.\u003c\/p\u003e \u003ch3\u003eInstallation and safety tips\u003c\/h3\u003e\n\u003cp\u003eAlways shut off power and follow all applicable electrical codes during installation. Adhere to the panel manufacturer's torque and installation guidelines. When in doubt, consult a licensed electrician to ensure proper fit and safe operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sylvania","offers":[{"title":"Default Title","offer_id":46427238498466,"sku":"SEH1C040","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/sylvania-seh1c040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}