{"product_id":"square-d-lga36400cu43x","title":"Square D LGA36400CU43X 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eExperience robust protection with the Square D LGA36400CU43X 400A 3-Pole 600 V Circuit Breaker. Engineered for heavy‑duty 3‑phase power distribution, this unit provides reliable interruption capabilities to safeguard motors, transformers, and feeders in demanding environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 (three‑phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e LGA36400CU43X\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries\/compatibility:\u003c\/strong\u003e LGA family, designed to fit Square D panels requiring LGA breakers\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat makes this breaker stand out? Its design is tailored for high‑load applications where a 3‑pole device handles simultaneous phase protection. The 600 V rating supports industrial power systems common in manufacturing, data centers, and large commercial facilities, while the 400 A rating accommodates substantial feeder currents without compromising safety or nuisance tripping under normal load variations.\u003c\/p\u003e \u003cp\u003ePractical use cases:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMain service disconnect in large three‑phase distribution panels, delivering clear, centralized protection\u003c\/li\u003e \u003cli\u003eFeeder protection for heavy equipment banks, such as motors and compressors\u003c\/li\u003e \u003cli\u003eRetrofit projects where existing gear requires an LGA‑series 3‑pole, 600 V solution\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most: electrical engineers, facility managers, panel builders, and electrical contractors who need a reliable, compatible breaker that can handle sizable loads while maintaining quick‑trip protection.\u003c\/p\u003e \u003cp\u003eInstallation and compatibility tips (practical):\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify your panel accepts LGA‑series breakers and that the 3‑pole configuration matches your wiring plan\u003c\/li\u003e \u003cli\u003eConfirm the system voltage up to 600 V and ensure conductors and terminations are sized for 400 A continuous operation\u003c\/li\u003e \u003cli\u003eKeep documentation and the part number handy for future maintenance or panel upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423592829090,"sku":"LGA36400CU43X","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-lga36400cu43x","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}