{"product_id":"square-d-mhl364002361-circuit-breaker","title":"Square D | MHL364002361 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D MHL364002361 Circuit Breaker is built for demanding industrial power distribution, delivering robust protection for large 3-phase systems. With a 400A rating, three-pole configuration, and a 600V operating range, this device is purpose-built for installations where reliability and precise protection are non-negotiable.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole (three-phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eImportant compatibility note: The part number MHL364002361 is the best reference for ensuring a correct fit with your panel and existing protective scheme. Always confirm the exact fit and ratings before ordering to avoid mismatches in bus configuration or trip characteristics.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMaintenance and retrofits on legacy Square D panels that require a 400 A, three-pole, 600 V breaker\u003c\/li\u003e \u003cli\u003eReplacement in aging distribution equipment where exact specs are needed to restore original protection levels\u003c\/li\u003e \u003cli\u003eUpgrades to support higher-current 3-phase feeders in commercial or light industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e \u003cp\u003eBy sticking to the exact part number and specifications, you preserve system compatibility and reduce downtime caused by mismatched protective devices. This Square D breaker delivers consistent interrupting performance for critical loads, helping protect motors, transformers, and feeders from overloads and short circuits in 3-phase networks up to 600V.\u003c\/p\u003e \u003ch3\u003ePractical installation tips\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eVerify the panel’s acceptance of a 400 A, 3-pole, 600 V device before purchase.\u003c\/li\u003e \u003cli\u003eMatch the breaker’s mounting and bus arrangement to your enclosure and bus design; the MHL364002361 reference is your best guide for compatibility.\u003c\/li\u003e \u003cli\u003eLabel new protection settings after installation to reflect the updated current rating and trip characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re refreshing an aging panel, performing a retrofit to align with updated safety standards, or stocking a replacement for critical infrastructure, the Square D MHL364002361 400A 3-Pole 600V circuit breaker provides reliable, spec-accurate protection when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425683230882,"sku":"MHL364002361","price":4881.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/square-d-mhl364002361-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}