{"product_id":"siemens-hjxd63b400l-circuit-breaker","title":"Siemens | HJXD63B400L | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eFor reliable, high-current protection in demanding electrical installations, the Siemens HJXD63B400L circuit breaker delivers a precise, field-ready solution. This 400A, 3-pole, 600V bolt-on breaker is engineered for maintenance, retrofit, and replacement projects where exact compatibility matters.\u003c\/p\u003e \u003ch3\u003eDesigned for robust three‑phase protection\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 400A, providing strong overcurrent protection for high-demand circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole configuration ensures coordinated protection across all three phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 600V, suitable for a wide range of industrial and commercial distributions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Bolt-On design for secure, field-ready installation in compatible panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility reference\u003c\/strong\u003e: Part number HJXD63B400L guarantees precise matching with Siemens panels and systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Specifically suited for maintenance, retrofit, and replacement where a Siemens match is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and installation notes:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number HJXD63B400L is your best reference to ensure seamless compatibility with your panel and distribution setup.\u003c\/p\u003e \u003ch4\u003eUse cases and ideal customers\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eRetrofit projects to add capacity or replace aging breakers in Siemens-equipped panels.\u003c\/li\u003e \u003cli\u003eMaintenance scenarios where a direct, exact-match replacement is essential.\u003c\/li\u003e \u003cli\u003eThree-phase feeder protection or main-disconnect applications in industrial and commercial environments.\u003c\/li\u003e \u003cli\u003ePanel builders and electrical contractors assembling or upgrading distributed power systems in manufacturing facilities and service rooms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eWhy this Siemens breaker stands out\u003c\/h4\u003e \u003cp\u003eThe HJXD63B400L combines Siemens’ proven reliability with a bolt-on mounting approach that simplifies installation and maintenance in compatible panels. By using the exact part number, you ensure consistent trip characteristics and system coordination across all three phases, reducing downtime and risk during replacement or retrofit projects.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425627754658,"sku":"HJXD63B400L","price":4524.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hjxd63b400l-circuit-breaker-400a-3-pole-600v-bolt-962.webp?v=1789432859","url":"https:\/\/www.ampstate.com\/products\/siemens-hjxd63b400l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}