{"product_id":"square-d-lhp36400mt-400a-3p-600v-circuit-breaker","title":"Square D LHP36400MT Circuit Breaker, 400A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for demanding industrial environments, the Square D LHP36400MT is a 3-pole, 400 A circuit breaker rated for 600 V. As part of the LH series, it delivers reliable protection for large three-phase electrical systems used in service, maintenance, and replacement projects. Confirm compatibility by the part number to ensure a perfect fit for your panel or switchgear.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 3-pole (three-phase) circuit breaker designed for distributing power in industrial settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A nominal to protect feeders and main circuits in high-demand applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V maximum, suitable for standard industrial power distribution environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries and compatibility:\u003c\/strong\u003e LH series; use part number LHP36400MT to verify fit with your equipment and application requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal uses:\u003c\/strong\u003e main service panels, distribution boards, motor control centers, and retrofit\/replacement projects in manufacturing, facilities, and processing environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport and verification:\u003c\/strong\u003e If you’re unsure about compatibility, send us a message and we’ll help confirm fit for your specific setup.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations and use cases\u003c\/h3\u003e\n\u003cp\u003eWhen upgrading or maintaining industrial electrical systems, a 3-pole, 400 A breaker like the LHP36400MT provides centralized protection for three-phase loads. Use it in panels where high-current protection is required, and ensure the surrounding hardware, busbars, and enclosure are rated for 600 V and 400 A. This model is especially well-suited for retrofit projects where LH-series breakers are already in use, helping to reduce panel rework and alignment issues.\u003c\/p\u003e \u003ch3\u003eWhy choose Square D LH series for your project?\u003c\/h3\u003e\n\u003cp\u003eSquare D LH breakers are a widely adopted standard in industrial power distribution. The LHP36400MT’s 3-pole, 400 A rating aligns with common utility and equipment protections, while its LH-series design ensures reliable mounting, trip performance, and straightforward replacement when you’re maintaining an aging system or expanding capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46415978496162,"sku":"LHP36400MT","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-lhp36400mt-circuit-breaker-400a-3-pole-600v-breakers-299.webp?v=1789218636","url":"https:\/\/www.ampstate.com\/products\/square-d-lhp36400mt-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}