{"product_id":"siemens-hjxd63m400l-circuit-breaker","title":"Siemens | HJXD63M400L | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HJXD63M400L, a purpose-built circuit breaker engineered for demanding three-phase environments. With a 400A rating, 3-pole configuration, and a 600V maximum, this unit is designed to protect high-current equipment and power distribution systems with precise, reliable interrupting capability. It’s the go-to choice for maintenance, retrofit, and replacement tasks where exact specifications matter.\u003c\/p\u003e \u003ch3\u003eWhy choose the Siemens HJXD63M400L\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstronghigh-current protection\u003e: 400A nominal current handles strenuous three-phase loads common in industrial panels and service entrances.\u003c\/stronghigh-current\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e: Simultaneous disconnection of all three phases enhances safety and protects equipment from unbalanced loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade voltage handling\u003c\/strong\u003e: Rated for up to 600V systems, making it suitable for a wide range of commercial and light-industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility reference\u003c\/strong\u003e: The part number HJXD63M400L is the best reference for ensuring you’re selecting the exact replacement or retrofit component.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable retrofit option\u003c\/strong\u003e: Specifically suited for upgrading or replacing existing breakers that require matching specs without overhauling the panel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or restoring three-phase service panels in manufacturing, processing, or logistics facilities.\u003c\/li\u003e \u003cli\u003eRetrofit projects where existing hardware demands a 400A, 3-pole, 600V circuit breaker with compatible mounting and bus connections.\u003c\/li\u003e \u003cli\u003eReplacement of aging or failed breakers in industrial control rooms, ensuring continued protection for critical equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation notes and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify that the HJXD63M400L matches your panel’s fit and ratings. The exact part number is the most reliable reference for compatibility, so cross-check with your Siemens catalog or panel documentation to confirm mounting style, trip requirements, and wiring termination.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 400A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart number: HJXD63M400L\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to deliver dependable protection for three-phase systems, the Siemens HJXD63M400L is a practical, field-ready solution for professionals focused on reliability, safety, and seamless panel modernization. If your project calls for exacting specifications and a trusted brand, this 400A, 3-pole, 600V circuit breaker from Siemens stands up to the task.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427075444898,"sku":"HJXD63M400L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hjxd63m400l-circuit-breaker-400a-3-pole-600v-104.webp?v=1789668695","url":"https:\/\/www.ampstate.com\/products\/siemens-hjxd63m400l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}