{"product_id":"square-d-c400-400a-3p-600v-circuit-breaker","title":"Square D C400 Circuit Breaker, 400A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D C400 Circuit Breaker\u003c\/strong\u003e—a rugged, industrial-grade protective device engineered for demanding electrical service, maintenance, and replacement projects. With a 400 A rating, a 3-pole configuration, and a 600 V capacity, this breaker is built to safeguard three-phase systems across manufacturing floors, processing lines, and heavy machinery installations.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e C400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe C400 isn’t merely a protective device; it’s a reliable partner for the lifecycle of your electrical system. The 3-pole design provides true three-phase protection, enabling coordinated interruption across all phases to help minimize equipment damage and downtime in demanding environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eIndustrial service upgrades and new installations in manufacturing facilities\u003c\/li\u003e \u003cli\u003eMaintenance replacements in mid-to-large panel boards and switchgear\u003c\/li\u003e \u003cli\u003eSpare parts stocking for sites with standardized 3‑phase protection needs\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy it matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the Square D C400 ensures you have a dedicated, compatible solution for high-current, three-phase circuits. By aligning your selection with the part number C400 and your application requirements, you gain a precise fit, reliable operation, and streamlined maintenance planning. This approach reduces the guesswork when stocking and scheduling service across multiple panels or sites.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNotes: Verify fit by part number and application requirements. Need help matching a part number or confirming compatibility? Message us and we’ll help ensure you’re choosing the right protection for your system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for installation and planning\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePlan replacements during scheduled maintenance windows to minimize downtime.\u003c\/li\u003e \u003cli\u003eConfirm your panel or switchgear supports 600 V and 400 A ratings to ensure seamless integration.\u003c\/li\u003e \u003cli\u003eMaintain a standardized stock of C400 breakers to simplify logistics across facilities with similar 3‑phase protection needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46415673426082,"sku":"C400","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-c400-circuit-breaker-400a-3-pole-600v-breakers-886.webp?v=1789185422","url":"https:\/\/www.ampstate.com\/products\/square-d-c400-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}