{"product_id":"schneider-electric-nsj400hc-circuit-breaker","title":"Schneider Electric | NSJ400HC | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eThe Schneider Electric NSJ400HC Circuit Breaker delivers robust, reliable overcurrent protection for three-phase power systems. With a 400A rating, 3-pole configuration, and bolt-on mounting, this unit is purpose-built for maintenance, retrofit, and replacement projects where exact compatibility matters. Designed to perform in demanding industrial environments, it helps keep feeders and motors safe while minimizing downtime during panel upgrades.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\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 (three-phase)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e NSJ400HC, from Schneider Electric\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this NSJ400HC stands out\u003c\/h3\u003e\n\u003cp\u003eWhat makes this circuit breaker uniquely valuable is its precise fit for Schneider Electric panels and legacy switchgear that require the NSJ400HC series. The bolt-on design supports secure, durable installation in crowded electrical spaces, reducing the risk of loose connections and vibration over time. Its three-pole configuration protects all phases in a balanced three-phase system, delivering dependable interruption protection for feeders and motor-driven loads up to 600 volts.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and spare replacement for existing NSJ400HC installations\u003c\/li\u003e \u003cli\u003eRetrofit projects where a 400 A, 3-pole, 600 V bolt-on breaker is specified\u003c\/li\u003e \u003cli\u003eReplacement in commercial or industrial panels requiring robust three-phase protection\u003c\/li\u003e \u003cli\u003eProtected feeders and motor circuits in legacy switchgear that demand the NSJ400HC form factor\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify fit and ratings against your panel or switchgear documentation. The NSJ400HC part number is the most reliable reference for compatibility, ensuring the bolt-on mounting aligns with your enclosure and bus configuration. For installation, follow standard safety procedures: power down the system, inspect mounting surfaces for clean, flat contact, and torque mounting hardware to the panel manufacturer’s specifications. Plan for routine inspection of connections to maintain reliable performance over the breaker’s service life.\u003c\/p\u003e \u003ch3\u003ePractical considerations and benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMinimized downtime during replacements thanks to straightforward bolt-on mounting\u003c\/li\u003e \u003cli\u003eConsistent three-phase protection for evenly loaded networks\u003c\/li\u003e \u003cli\u003eReliable compatibility with Schneider Electric panels and NSJ-series components\u003c\/li\u003e \u003cli\u003eClear reference for procurement and maintenance planning with the NSJ400HC designation\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Schneider Electric NSJ400HC for dependable, scalable protection in medium- to large-scale electrical distributions. Confirm fit and ratings before purchasing to ensure seamless integration into your existing panel setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":46426777223330,"sku":"NSJ400HC","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schneider-electric-nsj400hc-circuit-breaker-400a-3-pole-600v-bolt-331.webp?v=1789619697","url":"https:\/\/www.ampstate.com\/products\/schneider-electric-nsj400hc-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}