{"product_id":"square-d-la400r-400a-3p-600v-circuit-breaker","title":"Square D LA400R 400A 3P 600V Circuit Breaker, NEMA 3R | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D LA400R 400A 3P 600V Circuit Breaker, NEMA 3R — a purpose-built protection device designed for everyday electrical work in panelboards, load centers, and electrical distribution systems. When reliability and exact part matching matter, this Square D breaker stands out as a smart choice for maintenance teams, panel builders, and inventory managers who demand exact part compatibility.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmpacity and topology\u003c\/strong\u003e: 400 A, 3-pole configuration, designed for up to 600 V systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOutdoor-ready protection\u003c\/strong\u003e: NEMA 3R enclosure rating supports outdoor or harsh environment installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit\u003c\/strong\u003e: Direct part-number match—LA400R ensures you’re pulling the right piece, reducing risk of misfits and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConvenient for stock and service\u003c\/strong\u003e: A dependable spare for service crews and panel builders who plan ahead with trusted Square D components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most? Electrical maintenance teams, facility engineers, and panel manufacturers who need consistent, code-compliant protection without guessing. Use it to safeguard feeders, branch circuits, and critical loads in industrial facilities, commercial buildings, and outdoor install sites where NEMA 3R protection is required.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: LA400R\u003c\/li\u003e \u003cli\u003eType: 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 \u003cli\u003eEnclosure Rating: NEMA 3R\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAvailability note: This part is available from AmpState. If you need help matching a part number or confirming compatibility with your panel or distribution setup, message us and we’ll help you confirm the fit before you buy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410951524514,"sku":"LA400R","price":5794.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/square-d-la400r-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}