{"product_id":"siemens-hj3-b400-400a-3p-600v-circuit-breaker","title":"Siemens HJ3-B400 Circuit Breaker, 400A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eFor demanding industrial protection, the Siemens HJ3-B400 Circuit Breaker delivers reliable three-phase protection with rugged, dependable design. With a 400 A rating, a 3-pole configuration, and a 600 V maximum, it is built to handle the fault currents and operational stresses common in industrial service, maintenance, and replacement projects.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit guaranteed by part number\u003c\/strong\u003e: Use the HJ3-B400 to confirm compatibility with your panel, MCC, or electrical cabinet. Verify fit against your application requirements to ensure proper protection and seamless integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection for balanced systems\u003c\/strong\u003e: Intercepts faults across all three phases simultaneously, improving safety and limiting damage in three-phase circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V maximum rating\u003c\/strong\u003e: Suitable for typical industrial power networks and motor-driven equipment up to 600 V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust reliability for downtime-critical environments\u003c\/strong\u003e: Siemens engineering provides predictable trip performance and long service life in challenging facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacement-friendly design\u003c\/strong\u003e: Engineered to drop into existing equipment with minimal downtime when upgrading or replacing older breakers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e:\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePart Number: HJ3-B400\u003c\/li\u003e \u003cli\u003eProduct Type: Circuit Breaker\u003c\/li\u003e \u003cli\u003eAmperage: 400 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage: 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIndustrial electrical service installations, upgrades, and routine maintenance in manufacturing facilities\u003c\/li\u003e \u003cli\u003eReplacement of aging breakers in panelboards and motor control centers (MCCs)\u003c\/li\u003e \u003cli\u003eNew builds or relocations that require robust three-phase protection for heavy machinery and conveyors\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and support\u003c\/strong\u003e:\u003c\/p\u003e \u003cp\u003eNote: Verify fit by part number and application requirements to ensure optimal performance. If you need help matching a part number or confirming compatibility, message us and we’ll assist in confirming the right fit for your equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46416048619682,"sku":"HJ3-B400","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hj3-b400-circuit-breaker-400a-3-pole-600v-breakers-911.webp?v=1789229097","url":"https:\/\/www.ampstate.com\/products\/siemens-hj3-b400-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}