{"product_id":"siemens-hed41b040-40a-1p-277v-circuit-breaker","title":"Siemens HED41B040 40A 1P 277V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED41B040 40A 1P 277V Bolt-On Circuit Breaker delivers reliable overcurrent protection for commercial electrical distribution. Designed for panelboards, load centers, and other distribution setups, this breaker pairs Siemens’ trusted engineering with a straightforward bolt-on installation for fast, secure protection where it matters most.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePart number: HED41B040\u003c\/li\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003eProduct type: Circuit Breaker\u003c\/li\u003e \u003cli\u003eAmperage: 40 A\u003c\/li\u003e \u003cli\u003ePoles: 1\u003c\/li\u003e \u003cli\u003eVoltage: 277 V\u003c\/li\u003e \u003cli\u003eMounting: Bolt-On\u003c\/li\u003e \u003cli\u003eTypical applications: Panelboards, Load centers, Electrical distribution\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho benefits from this breaker\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance teams maintaining commercial power distribution systems that require a direct part-number match\u003c\/li\u003e \u003cli\u003ePanel builders seeking a reliable, compatible bolt-on solution for 277V circuits\u003c\/li\u003e \u003cli\u003eOrganizations keeping spare inventory with precise Siemens part numbers for quick replacements\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens HED41B040 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eExact-fit compatibility: The HED41B040 is a purpose-built choice for Siemens panelboards and distribution gear, reducing guesswork during retrofit or repair projects.\u003c\/li\u003e \u003cli\u003eDirect bolt-on mounting: Engineered for secure, fast installation in compatible enclosures, minimizing downtime on critical circuits.\u003c\/li\u003e \u003cli\u003eSpecified for 277 V systems: Ideal for commercial lighting, HVAC, and other 277V distribution needs where consistent protection is essential.\u003c\/li\u003e \u003cli\u003eDurable, reliable protection: Built to handle sustained overcurrent events and protect downstream equipment and wiring in demanding environments.\u003c\/li\u003e \u003cli\u003eAmpState availability: Ready to ship through AmpState with support to confirm fit and compatibility if you’re optimizing inventories or kitting projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect a 40 amp branch circuit feeding commercial lighting or receptacle circuits in a 277V distribution system.\u003c\/li\u003e \u003cli\u003eUpgrade or replace a faulty breaker in a panelboard where a direct Siemens part-number match is required for regulatory or documentation reasons.\u003c\/li\u003e \u003cli\u003eStock spare HED41B040 units in maintenance inventories to ensure rapid response during planned maintenance or emergency outages.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eImportant notes on compatibility and support\u003c\/h3\u003e\n\u003cp\u003eIf you’re unsure about fit, AmpState offers assistance to verify compatibility and confirm the correct part-number match for your panel or load center. Send a quick message, and the team will help ensure you’re selecting the exact Siemens HED41B040 you need for your system.\u003c\/p\u003e \u003cp\u003eAvailability: This part is offered by AmpState, designed to simplify procurement for professionals who require precise, reliable components for electrical distribution. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410916233378,"sku":"HED41B040","price":1383.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hed41b040-40a-1p-277v-circuit-breaker-bolt-on-ampstate-515.webp?v=1788990592","url":"https:\/\/www.ampstate.com\/products\/siemens-hed41b040-40a-1p-277v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}