{"product_id":"siemens-lmxd63a800-800a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens LMXD63A800 - 800 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens LMXD63A800\u003c\/strong\u003e is a rugged, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. With an 800 A rating at 600 V, this unit meets the demands of larger feeders in residential, commercial, and light industrial settings while maintaining precise protection performance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing movement and keystone wear in busy electrical environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining heat-based current sensing with instantaneous magnetic trip for short circuits—helping to minimize nuisance trips and protect downstream equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e accommodates three-phase systems, enabling efficient protection of multi-phase feeders and balanced loading in panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e800 A, 600 V rating\u003c\/strong\u003e makes it suitable for large branch circuits, feeders, and service entrances within OEM load centers and panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e engineered to pair with matching Siemens load centers and panelboards, ensuring seamless integration and reliability across installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e ideal for residential, commercial, and light industrial environments where durable, code-compliant protection is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eTechnical snapshot\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: LMXD63A800\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 800 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003ePractical use cases\u003c\/h4\u003e\n\u003cp\u003eUse the LMXD63A800 to protect large feeders feeding subpanels in commercial spaces such as offices, retail locations, and small data rooms. It’s also well-suited for main feeders in light industrial setups where vibration resistance and secure connections matter—the bolt-on design keeps connections tight in environments with equipment like motors, HVAC units, and other heavy loads. When upgrading or replacing OEM parts, this Siemens breaker ensures compatibility, reliability, and consistent trip characteristics you can count on.\u003c\/p\u003e \u003ch4\u003eWhy this design matters\u003c\/h4\u003e\n\u003cp\u003eCompared with other mounting styles, bolt-on circuit breakers like the LMXD63A800 deliver superior mechanical stability, which translates to fewer connection faults over time and more predictable protection during fault conditions. The thermal-magnetic trip mechanism provides fast magnetic response to short circuits while accommodating typical overload scenarios, helping you protect wiring, panels, and connected equipment from damage.\u003c\/p\u003e \u003ch4\u003eBuying with confidence\u003c\/h4\u003e\n\u003cp\u003eAmpState provides genuine Siemens parts, ensuring authentic performance and compatibility with your existing Siemens load centers and panelboards. The LMXD63A800 is a purpose-built choice for anyone needing robust, high-capacity protection in demanding electrical environments. Ready to upgrade or outfit a panel with reliable branch-circuit protection? This 3-pole bolt-on breaker is designed to meet the needs of professional installations where safety, reliability, and long-term integrity matter.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355131826338,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-lmxd63a800-800-a-600-v-3-pole-bolt-on-circuit-breaker-919.webp?v=1788733736","url":"https:\/\/www.ampstate.com\/products\/siemens-lmxd63a800-800a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}