{"product_id":"siemens-cmd63b500-circuit-breaker","title":"Siemens | CMD63B500 | Circuit Breaker | 500A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens CMD63B500 is a purpose-built bolt-on circuit breaker designed to deliver dependable, high-capacity overcurrent protection for demanding 3-phase, 600V electrical systems. Built to support maintenance, retrofit, and replacement projects, this 3-pole unit is engineered to handle heavy load profiles with confidence and longevity.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eAmperage:\u003c\/b\u003e 500A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage:\u003c\/b\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting:\u003c\/b\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart number:\u003c\/b\u003e CMD63B500\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy it stands out\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eExact compatibility reference:\u003c\/b\u003e The CMD63B500 part number is the best indicator for matching panels and upstream equipment, making it ideal for precisely targeted replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSecure, durable mounting:\u003c\/b\u003e The bolt-on design provides a solid mechanical connection and reliable electrical contact, reducing vibration and maintaining consistent performance in industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eIndustrial-grade protection for 600V systems:\u003c\/b\u003e With a 500A rating, this breaker is suited for high-demand three-phase circuits common in manufacturing, processing, and large HVAC installations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFlexible retrofit option:\u003c\/b\u003e When upgrading or replacing aging breakers, CMD63B500 fits into existing Siemens-compatible panels and layouts, helping minimize downtime during maintenance or expansion projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eRetrofit or replacement in existing Siemens panels that serve heavy 3-phase loads up to 500A\u003c\/li\u003e \u003cli\u003eNew installations requiring a 3-pole, 600V disconnect for industrial machinery or process equipment\u003c\/li\u003e \u003cli\u003eService upgrades where a robust bolt-on solution is preferred for reliability and long service life\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for installation and safe operation\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings against your panel model and system voltage before ordering. The CMD63B500 is designed for compatibility with Siemens configurations and 600V three-phase circuits.\u003c\/li\u003e \u003cli\u003ePrepare the mounting area by ensuring clean bus interfaces and secure fasteners. Use the recommended torque specs for bolt-on connections to maintain optimal contact and protection performance.\u003c\/li\u003e \u003cli\u003eInspect the surrounding panel for any signs of wear or damage before replacement, and verify downstream wiring can handle sustained 500A loads.\u003c\/li\u003e \u003cli\u003eKeep spare CMD63B500 on hand for proactive maintenance or rapid replacements to minimize equipment downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn short, the Siemens CMD63B500 is a high-capacity, bolt-on solution purpose-built for demanding 600V, three-phase applications. It combines precise compatibility with robust protection, making it a reliable choice for industrial panels needing a durable, upgradable disconnect and overcurrent protector.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426660110498,"sku":"CMD63B500","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/siemens-cmd63b500-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}