{"product_id":"siemens-lxd63b450hl-450a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens LXD63B450HL - 450 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens LXD63B450HL — a robust 450 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to shield panelboards and loadcenters from overcurrent and short-circuit events. Built for dependable performance in demanding environments, this MCCB is a smart choice for commercial spaces, high-load residential panels, and light industrial applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays aligned even in busy electrical panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection against both overloads and short circuits, helping to prevent nuisance trips and equipment damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e ensures simultaneous disconnection across all phases, enhancing safety and reliability in three-phase systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustry compatibility\u003c\/strong\u003e engineered to pair with matching OEM load centers and panelboards, simplifying replacement and upgrades within Siemens ecosystems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity rating\u003c\/strong\u003e 450 A at up to 600 V, making it suitable for large feeders and main circuit protection in balanced power layouts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e ideal for branch-circuit overcurrent and short-circuit protection across residential, commercial, and light industrial deployments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe LXD63B450HL is more than a breaker—it's a lifecycle choice for your electrical distribution. Its bolt-on design minimizes bus movement during installation and during operation, while the thermal-magnetic logic provides predictable protection that electricians can rely on when coordinating with other protective devices in your panel. If you’re upgrading an existing Siemens panel or wiring a new commercial or light-industrial system, this 3-pole MCCB offers a precise balance of strong protection and straightforward integration.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LXD63B450HL\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker (MCCB)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 450 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\u003eDesigned for installers who demand reliability and compatibility within Siemens panel ecosystems, the LXD63B450HL is a practical, high-capacity solution for safeguarding electrical systems. For projects requiring solid protection that’s built to last, this bolt-on MCCB from Siemens, available through AmpState, delivers peace of mind and straightforward procurement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355132252322,"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_7cd80283-dde2-4d35-bd9c-c7b4a41e121a.png?v=1764689469","url":"https:\/\/www.ampstate.com\/products\/siemens-lxd63b450hl-450a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}