{"product_id":"njl-s3400-circuit-breaker","title":"NJL-S3400 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eNJL-S3400 Circuit Breaker\u003c\/strong\u003e is an industrial-grade safeguard engineered for dependable protection in 3-phase power systems up to 600V. Rated at 400A with a 3-pole design, this unit is built to interrupt heavy loads quickly and safely, helping to minimize equipment damage and downtime during faults or maintenance.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 400 A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cp\u003eDesigned for maintenance, retrofit, and replacement projects where precise compatibility matters, the NJL-S3400 offers a reliable, straightforward path to restoring and protecting your three-phase distribution. Its robust construction and clear ratings give technicians confidence when upgrading panels or reviving aging infrastructure. The part number NJL-S3400 serves as the best reference for ensuring a correct fit in your existing equipment.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or aging 3-pole breaker in a 600V distribution panel\u003c\/li\u003e \u003cli\u003eRetrofits where matching amperage and three-pole configuration are required for three-phase feeders\u003c\/li\u003e \u003cli\u003eMaintenance replacements to minimize system downtime during electrical servicing\u003c\/li\u003e \u003cli\u003eNew installations within equipment designed for 400A, 3-phase protection in 600V systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation \u0026amp; compatibility\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure seamless integration with your panel or switchgear. The NJL-S3400 is specifically referenced by its part number, which is the most reliable indicator of compatibility with existing setups. For best results, have a licensed electrician verify mounting, electrical clearances, and proper switching duty for your application.\u003c\/p\u003e \u003cp\u003ePractical tips for use:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eKeep a spare NJL-S3400 on hand for planned maintenance to reduce downtime.\u003c\/li\u003e \u003cli\u003eDocument the exact panel model and any accessory requirements when planning a retrofit or replacement.\u003c\/li\u003e \u003cli\u003eFollow manufacturer installation guidelines and local electrical codes for safe operation and service life optimization.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the NJL-S3400, you’re investing in a proven solution for reliable overcurrent protection in demanding 600V, three-phase environments. Its precise specifications and clear compatibility guidance help you execute maintenance, retrofits, and replacements with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426406617250,"sku":"NJL-S3400","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/njl-s3400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}