{"product_id":"siemens-cjd63h400l-circuit-breaker","title":"Siemens | CJD63H400L | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens CJD63H400L Circuit Breaker\u003c\/strong\u003e is a rugged 400 A, 3-pole device designed for 600 V systems. Built for maintenance, retrofit, and replacement projects, this breaker delivers reliable protection when exact specifications matter.\u003c\/p\u003e \u003cp\u003eKey details:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e CJD63H400L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest use:\u003c\/strong\u003e Maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this model stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eExact-fit option for panels and disconnects that require 400 A, 3-pole protection at 600 V, reducing compatibility risk during installation.\u003c\/li\u003e \u003cli\u003eThe part number \u003cstrong\u003eCJD63H400L\u003c\/strong\u003e serves as the most reliable reference for compatibility checks and cross-referencing in catalogs.\u003c\/li\u003e \u003cli\u003eDesigned to deliver consistent protection for demanding 600 V feeder circuits in commercial or light industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to verify fit and order with confidence\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMatch the amperage (400 A), number of poles (3), and voltage rating (600 V) to your existing equipment.\u003c\/li\u003e \u003cli\u003eUse the part number \u003cstrong\u003eCJD63H400L\u003c\/strong\u003e as the primary compatibility reference in catalogs or when communicating with suppliers.\u003c\/li\u003e \u003cli\u003eEnsure the breaker is intended for 600 V systems and aligns with your panel’s specifications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cp\u003e- Retrofit projects where an existing 400 A, 3-pole, 600 V breaker needs replacement without altering the panel lineup.\u003c\/p\u003e\n\u003cp\u003e- Routine maintenance outages requiring dependable high-capacity protection for main feeders in commercial or light industrial settings.\u003c\/p\u003e\n\u003cp\u003e- New installations that demand Siemens reliability and 600 V protection for robust electrical protection.\u003c\/p\u003e \u003cp\u003eSecure the right Siemens CJD63H400L circuit breaker to safeguard your 600 V system. Confirm fit using the part number, then proceed with confidence to keep your electrical infrastructure running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427179155618,"sku":"CJD63H400L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/siemens-cjd63h400l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}