{"product_id":"westinghouse-la3400n-circuit-breaker","title":"Westinghouse | LA3400N | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eWestinghouse LA3400N is a robust circuit breaker designed for demanding electrical systems. Rated at 400A with a 3‑pole (three‑phase) configuration and a 600V maximum, this bolt‑on unit is built for maintenance, retrofit, and replacement projects where precise protection is essential. When downtime isn’t an option, the LA3400N provides reliable, straightforward panel integration that keeps critical circuits safeguarded.\u003c\/p\u003e \u003ch3\u003eKey capabilities\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmpere rating:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole (three‑phase)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSystem voltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On for quick, secure panel installation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility reference:\u003c\/strong\u003e Part number LA3400N (best reference for fit)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker matters\u003c\/h3\u003e\n\u003cp\u003eIn commercial and light industrial environments, protecting feeders and distribution paths from overloads and short circuits is critical. The LA3400N delivers dependable overcurrent protection for 400A, three‑phase circuits, while its bolt‑on design enables faster replacements and maintenance—reducing downtime and getting systems back to full operation sooner.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed 400A, 3‑pole breaker in existing panels that require a 600V bolt‑on solution.\u003c\/li\u003e \u003cli\u003eRetrofits to modernize aging electrical systems without reconfiguring major panel components.\u003c\/li\u003e \u003cli\u003eNew installations with heavy three‑phase loads where reliable, easy‑to‑install protection is needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eAlways confirm fit and ratings before ordering. Rely on the part number LA3400N as the primary compatibility reference to ensure seamless replacement or retrofit. For safety and compliance, have a licensed electrician perform installation following local codes and manufacturer guidelines.\u003c\/p\u003e \u003ch3\u003eCare and ongoing protection\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRegularly inspect for signs of wear, overheating, or insulation damage and replace if needed.\u003c\/li\u003e \u003cli\u003eKeep the breaker and surrounding panel area clean and dry to maintain reliable operation.\u003c\/li\u003e \u003cli\u003eFollow official mounting torque recommendations and ensure a secure, defect‑free connection within the panel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46424422056098,"sku":"LA3400N","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-la3400n-circuit-breaker-400a-3-pole-600v-bolt-924.webp?v=1789356485","url":"https:\/\/www.ampstate.com\/products\/westinghouse-la3400n-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}