{"product_id":"square-d-mh364002100-400a-3p-600v-circuit-breaker","title":"Square D MH364002100 Circuit Breaker, 400A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D MH364002100 Circuit Breaker is built for rugged industrial environments where reliable protection is non-negotiable. With a robust 400 A rating, a three-pole design for true three-phase protection, and a 600 V maximum system voltage, this breaker is purpose-built for demanding electrical service, maintenance, and replacement projects.\u003c\/p\u003e \u003ch3\u003eWhat makes this breaker stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current protection:\u003c\/strong\u003e 400 A rating handles substantial loads common in industrial facilities, helping prevent downstream damage and unplanned downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration:\u003c\/strong\u003e Ensures balanced protection across all three phases, which is essential for motors, drives, and other three-phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V operating range:\u003c\/strong\u003e Suitable for typical industrial distribution networks and equipment designed for higher voltage service.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-part integrity:\u003c\/strong\u003e Identified by the exact part number MH364002100—verify fit by part number and application requirements to ensure seamless compatibility.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-focused purpose:\u003c\/strong\u003e Specifically described for industrial service, maintenance, and replacement scenarios, making it a trusted choice for ongoing facility upkeep.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupportive compatibility checks:\u003c\/strong\u003e If you’re unsure whether this exact model fits your panel or disconnect, we can assist with compatibility confirmation based on your application.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed breaker in existing Square D installations that require a 400 A, 3-pole, 600 V protective device.\u003c\/li\u003e \u003cli\u003eProtecting feeders and distribution circuits in manufacturing floors, warehouses, and processing facilities.\u003c\/li\u003e \u003cli\u003eIntegrating into new installations where three-phase protection is needed for motors, conveyors, pumps, and HVAC systems operating at up to 600 V.\u003c\/li\u003e \u003cli\u003eMaintenance projects where a sturdy, Field-tested Square D solution is preferred to minimize downtime and simplify future servicing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and how to confirm fit\u003c\/h3\u003e\n\u003cp\u003eAlways verify compatibility by matching the exact part number, MH364002100, to your equipment specifications and application requirements. If you’re unsure about fit, send us a message with your panel or disconnect details and we’ll help verify whether this MH-series breaker is the right choice for your system.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e MH364002100\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46415708291234,"sku":"MH364002100","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/square-d-mh364002100-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}