{"product_id":"siemens-md63b800l-circuit-breaker","title":"Siemens | MD63B800L | Circuit Breaker | 800A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens MD63B800L circuit breaker—a purpose-built, 800 A, 3-pole device engineered for demanding three‑phase electrical systems. Ideal for maintenance, retrofit, and replacement projects, this unit is designed to slot into Siemens panels where exact specifications matter, ensuring reliable protection and streamlined serviceability.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 800 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e MD63B800L\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and fit\u003c\/h2\u003e\n\u003cp\u003eFor best results, confirm fit and ratings before ordering. The part number MD63B800L is the best reference for ensuring you match the exact breaker to your Siemens panel and application.\u003c\/p\u003e \u003ch2\u003eWhat makes this Siemens breaker different\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eDesigned to integrate with Siemens panels, leveraging the same mounting and trip characteristics to minimize retrofit complications.\u003c\/li\u003e \u003cli\u003eThree-pole configuration provides synchronized protection across all phases in 3‑phase circuits, helping prevent unbalanced loads and equipment damage.\u003c\/li\u003e \u003cli\u003eSingle, clearly identified part number simplifies inventory and replacement planning, reducing downtime during service windows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eIndustrial facilities with 3‑phase motor loads, heavy machinery, conveyors, or large power distribution needs requiring 800 A main protection.\u003c\/li\u003e \u003cli\u003eRetrofits and upgrades to replace aging or failed breakers within existing Siemens panels, preserving system integrity.\u003c\/li\u003e \u003cli\u003eSpare parts strategy for service teams that prioritize exact-part compatibility and rapid deployment in critical infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical tips for installation and maintenance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eHave your panel model and electrical ratings on hand to validate compatibility and avoid mismatches.\u003c\/li\u003e \u003cli\u003eKeep a certified MD63B800L in stock for quick, reliable replacements in time‑sensitive maintenance scenarios.\u003c\/li\u003e \u003cli\u003eFollow Siemens installation guidelines and torque specifications to ensure a secure connection and optimal protective performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Siemens MD63B800L means selecting a purpose-built, high‑reliability circuit breaker that aligns with Siemens panels and three‑phase systems. It’s the clear choice for technicians who demand exact part compatibility, straightforward maintenance, and dependable, three‑phase protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427475935394,"sku":"MD63B800L","price":13193.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-md63b800l-circuit-breaker-800a-3-pole-737.webp?v=1789728515","url":"https:\/\/www.ampstate.com\/products\/siemens-md63b800l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}