{"product_id":"square-d-lhl36400-circuit-breaker","title":"Square D | LHL36400 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LHL36400 Circuit Breaker — a robust, protective device designed for demanding electrical systems. With 400A capacity, 3-pole configuration, and a 600V rating, this breaker safeguards distribution panels and feeders in industrial, commercial, and large-scale applications.\u003c\/p\u003e \u003cp\u003eEngineered for maintenance, retrofit, and replacement projects where exact specifications matter, the LHL36400 helps ensure continuity, safety, and compliance without unnecessary panel modifications.\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\u003ePole configuration:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompatibility and fit: Before ordering, confirm the part's compatibility with your equipment. The part number \u003cstrong\u003eLHL36400\u003c\/strong\u003e is the best reference for matching breakers to panels, bus bars, and accessories. This is essential to avoid mismatches in trip characteristics and mounting footprint.\u003c\/p\u003e \u003cp\u003eWhy choose the Square D LHL36400:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eOfficial Square D protection for high-load circuits — trusted performance under demanding conditions.\u003c\/li\u003e \u003cli\u003eClear replacement path: same 3-pole, 600V design makes retrofits with legacy gear more straightforward.\u003c\/li\u003e \u003cli\u003eAvailability as a dedicated spare part with precise specifications, reducing guesswork during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and scenarios:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading a heavy-load distribution panel in manufacturing or data-center environments requiring 400 A protection on three phases.\u003c\/li\u003e \u003cli\u003eRetrofit of older switchgear that uses a matching 3-pole, 600V protective device for improved safety margins.\u003c\/li\u003e \u003cli\u003eSpare-part readiness for facilities that standardize on Square D components to streamline maintenance and stock management.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and safety tips:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCoordinate with a qualified electrician to verify panel rating and compatibility with the LHL36400 before purchase.\u003c\/li\u003e \u003cli\u003eKeep the part number handy (LHL36400) when ordering to ensure you receive the exact spec you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425523847330,"sku":"LHL36400","price":9898.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-lhl36400-circuit-breaker-400a-3-pole-600v-633.webp?v=1789418902","url":"https:\/\/www.ampstate.com\/products\/square-d-lhl36400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}