{"product_id":"siemens-cmd63a800-800a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens CMD63A800 - 800 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens CMD63A800 is a rugged 800A, 600V, 3-pole bolt-on molded case circuit breaker engineered for dependable protection in your electrical distribution system. Designed for panelboards and load centers, it delivers precise overcurrent and short-circuit protection where reliability matters most—from residential upgrades to commercial and light industrial installations.\u003c\/p\u003e \u003cp\u003eKey features and practical benefits:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection. This reduces connection looseness and electrical noise, helping maintain consistent protection even in environments with equipment vibration or heavy switching loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e offers stable, repeatable protection for both overload and short-circuit events. The combination of thermal and magnetic sensing adapts to changing current conditions, helping prevent nuisance trips while safeguarding wiring and devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e is ideal for balanced 3-phase power systems, ensuring coordinated protection across all phases and simplifying integration into standard 3-phase panelboards and load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e works seamlessly with matching Siemens panelboards and load centers, helping you maintain a cohesive, reliable electrical infrastructure without compatibility guesswork.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential projects with high-load requirements, commercial suites, and light industrial setups that demand robust branch-circuit protection and fast response to fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBranch circuit protection\u003c\/strong\u003e designed to guard downstream circuitry and equipment, reducing the risk of damage from overcurrent and short circuits and supporting safer, longer-lasting electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrongtechnical specifications\u003e\u003c\/strongtechnical\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: CMD63A800\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 800A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style\u003c\/strong\u003e: Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for professionals upgrading or expanding Siemens-based electrical systems, the CMD63A800 provides a proven, durable solution when you need high-capacity protection with straightforward installation. Its bolt-on design simplifies mounting, while the thermal-magnetic trip unit delivers reliable performance across a range of load conditions. If your panels are Siemens-based and demand robust, three-phase protection for heavy loads, CMD63A800 is a compelling choice that pairs directly with compatible equipment for a cohesive, safer electrical distribution network.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349780713634,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_755e017f-e6bb-48a0-9f82-eb96aa081617.png?v=1764156480","url":"https:\/\/www.ampstate.com\/products\/siemens-cmd63a800-800a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}