{"product_id":"siemens-hed63b040-circuit-breaker","title":"Siemens | HED63B040 | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens \u003cstrong\u003eHED63B040\u003c\/strong\u003e Circuit Breaker—a precise, three-pole protection device engineered for 3‑phase systems. With a 40 A rating and a 600 V maximum, it’s crafted for maintenance, retrofit, and replacement projects where exact specifications matter. Rely on this part to keep your electrical distribution safe and reliable without guesswork.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HED63B040\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest use:\u003c\/strong\u003e maintenance, retrofit, and replacement duties\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eThis is not a generic substitute. The HED63B040 is a like-for-like Siemens part that ensures compatibility with your existing panel architecture and protection scheme. The three-pole design provides synchronized interruption across all phases, which is essential for balanced 3‑phase loads and equipment protection.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects where a 40 A, 3‑pole, 600 V breaker matches the existing setup.\u003c\/li\u003e \u003cli\u003eReplacement of a failed or outdated breaker within a Siemens ecosystem, preserving panel ratings and trip characteristics.\u003c\/li\u003e \u003cli\u003eNew installations requiring a clearly defined 3‑phase protection point for 40 A circuits (verify panel compatibility before proceeding).\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and quick reference\u003c\/h3\u003e\n\u003cp\u003eNotes: Confirm fit and ratings before ordering. The \u003cstrong\u003eHED63B040\u003c\/strong\u003e part number is the best reference for compatibility. Always ensure the amp rating, pole configuration, and voltage align with your current panel specifications to avoid installation issues.\u003c\/p\u003e \u003ch3\u003ePractical installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down equipment and follow lockout\/tagout procedures before replacement.\u003c\/li\u003e \u003cli\u003eInspect conductors for wear and ensure clean, secure connections at the terminals.\u003c\/li\u003e \u003cli\u003eConsult your panel manufacturer’s torque guidelines to tighten terminal screws to the correct specification.\u003c\/li\u003e \u003cli\u003eVerify that adjacent breakers and the bus are in good condition to prevent nuisance tripping after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427544518818,"sku":"HED63B040","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\/siemens-hed63b040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}