{"product_id":"siemens-mxd63b800l-800a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens MXD63B800L - 800 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens MXD63B800L is engineered to deliver dependable protection for your electrical distribution in panelboards and loadcenters. With an 800A rating, a 600V maximum voltage, and a rugged 3-pole bolt-on design, this molded case circuit breaker is ready to handle high-demand branch circuits and short-circuit events with confidence. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey advantages that set the MXD63B800L apart\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, helping maintain reliable performance in challenging environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying loads and fault conditions, helping to protect wiring and equipment from damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is ready to drop into matching Siemens OEM loadcenters and panelboards for a seamless retrofit or new installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e supports balanced protection for three-phase systems commonly found in commercial and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection\u003c\/strong\u003e at \u003cstrong\u003e800A\u003c\/strong\u003e and \u003cstrong\u003e600V\u003c\/strong\u003e makes it suitable for main feeders, heavy-duty branch circuits, and equipment with substantial starting currents.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePurpose-built for branch circuit overcurrent and short-circuit protection\u003c\/strong\u003e in a range of applications from residential panels to commercial distribution boards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat this means for your installation\u003c\/h3\u003e \u003cp\u003eThe Siemens MXD63B800L is designed to slot into your existing equipment with minimal hassle, delivering reliable protection without compromising panel real estate or service continuity. Its bolt-on construction simplifies mounting in compatible panelboards, while the thermal-magnetic trip mechanism guards against both gradual overcurrent and instantaneous short circuits. This makes it a practical choice for projects that demand durability, long service life, and predictable protection performance.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e \u003cp\u003eIdeal for residential service panels that require robust main or feeder protection, commercial distribution boards that power lighting, HVAC, and receptacle circuits, and light industrial panels where higher fault currents are a concern. The MXD63B800L is well-suited for retrofit projects where an existing Siemens-based system calls for a like-for-like replacement, ensuring compatibility and simplified maintenance.\u003c\/p\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e MXD63B800L\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 800 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\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\u003eWhen you’re upgrading or expanding an electrical system, the Siemens MXD63B800L offers a precise combination of high-capacity protection, rugged mounting, and OEM compatibility that helps you achieve reliable performance today and solid service life tomorrow.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355134578850,"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_458b0b25-8780-4a33-be9b-0268cba503eb.png?v=1764689520","url":"https:\/\/www.ampstate.com\/products\/siemens-mxd63b800l-800a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}