{"product_id":"siemens-lxd63b450-450a-3p-circuit-breaker","title":"Siemens LXD63B450 450A 3P Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens LXD63B450 450A 3P Circuit Breaker is built for serious electrical protection in panelboards, load centers, and broader distribution networks. Designed to deliver reliable performance in high-current applications, this genuine Siemens component is the smart choice when a direct part-number match matters for upgrades, repairs, or spare inventory.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit, guaranteed compatibility:\u003c\/strong\u003e Part Number LXD63B450 ensures seamless replacement in existing Siemens panels, reducing guesswork and installation time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current protection:\u003c\/strong\u003e 450 A rating provides robust protection for feeders and distribution circuits in commercial and industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration:\u003c\/strong\u003e 3P design delivers balanced protection across all phases, supporting reliable operation of multi-phase systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGenuine Siemens performance:\u003c\/strong\u003e Built to meet Siemens’ precise trip characteristics and electrical specifications, preserving panel coordination and safety margins.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmpState availability:\u003c\/strong\u003e Securely available from AmpState for maintenance stock, panel builds, and rapid replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance and project readiness:\u003c\/strong\u003e Ideal for maintenance teams, panel builders, and facilities planners who need predictable procurement and quick deployment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider the LXD63B450?\u003c\/h3\u003e\n\u003cp\u003eMaintenance crews managing Siemens-based panelboards and load centers will benefit from having this exact 450 A, 3-pole breaker on hand. Panel builders specifying Siemens parts for new installations will appreciate the reliability and compatibility of the LXD63B450, while facilities teams maintaining large electrical distributions gain confidence from a consistent, OEM-designed protection device.\u003c\/p\u003e \u003ch3\u003ePractical use cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed high-current breaker in a Siemens panel where a direct part-number match is critical to avoid cross-reference delays.\u003c\/li\u003e \u003cli\u003eEquipping spare inventory for service fleets that routinely service commercial or industrial distribution panels.\u003c\/li\u003e \u003cli\u003eSpecifying for new builds or retrofits that require robust, OEM-proven protection at 450 A in a 3-pole configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46412489228450,"sku":"LXD63B450","price":7066.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/siemens-lxd63b450-450a-3p-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}