{"product_id":"square-d-mal36400-400a-3-pole-circuit-breaker","title":"Square D MAL36400 - 400 A, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D MAL36400, a 400 A, 3‑pole molded case circuit breaker designed to protect your panelboards and loadcenters from overcurrent and short circuits. Built for dependable performance in residential, commercial, and light industrial environments, this breaker pairs robust protection with streamlined installation.\u003c\/p\u003e \u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space, helping you fit more protection without crowding the enclosure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying loads and temperature swings, reducing nuisance trips and ensuring consistent safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM‑equal compatibility\u003c\/strong\u003e engineered to work with matching Square D load centers and panelboards for effortless substitution and reliable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑pole configuration\u003c\/strong\u003e provides coordinated branch circuit protection for three‑phase systems, aligning with common panelboard architectures.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this design matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrecise trip behavior minimizes unexpected interruptions while safeguarding electrical circuits from overloads and short circuits.\u003c\/li\u003e \u003cli\u003eSpace‑efficient form factor simplifies panel planning, especially in tighter installations or retrofit projects.\u003c\/li\u003e \u003cli\u003eAuthentic Square D engineering guarantees compatibility with your existing OEM panels and downstream equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectricians and electrical contractors configuring or upgrading panelboards in commercial buildings.\u003c\/li\u003e \u003cli\u003eFacility managers overseeing residential complexes or light industrial facilities needing reliable branch circuit protection.\u003c\/li\u003e \u003cli\u003eMaintenance teams responsible for compliant, long‑term safeguarding of critical electrical infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility\u003c\/h3\u003e\n\u003cp\u003eThe MAL36400 is purpose‑built to fit Square D OEM load centers and panelboards, offering a seamless replacement path for aging or undersized protection. Its 3‑pole configuration is suitable for three‑phase distribution, and the 400 A rating makes it a solid choice for main or branch circuit protection in appropriately rated panels. Ensure your panel label supports the 400 A, 3‑pole thermal‑magnetic breaker and follow standard electrical practices when installing or replacing any molded case circuit breaker.\u003c\/p\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MAL36400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal‑magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short‑circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eSecure, OEM‑aligned protection for your panel system starts with the Square D MAL36400. Add it to your cart from AmpState and keep your electrical distribution running safely and reliably.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355330793634,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_3f81dd9c-c349-432c-85d7-980990137587.png?v=1764691404","url":"https:\/\/www.ampstate.com\/products\/square-d-mal36400-400a-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}