{"product_id":"square-d-mhl36400-circuit-breaker","title":"Square D | MHL36400 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D \u003cb\u003eMHL36400\u003c\/b\u003e circuit breaker is built for demanding industrial panels where reliable protection and precise ratings matter. With a robust \u003cb\u003e400A\u003c\/b\u003e capacity, a \u003cb\u003e3-Pole\u003c\/b\u003e configuration, and a \u003cb\u003e600V\u003c\/b\u003e rating, this device is designed to safeguard three-phase power systems during heavy-duty operation, maintenance, retrofit, or replacement projects.\u003c\/p\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\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e MHL36400\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the MHL36400 for your panel? This model is purpose-built for high-current, three-phase service feeds, providing dependable short-circuit and overload protection where panel space and compatibility are critical. It’s especially suited for retrofit or replacement scenarios where matching specifications is essential to maintain electrical safety and system performance.\u003c\/p\u003e \u003ch3\u003eKey benefits and practical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongmaintenance and service upgrades:\u003e Swap-in-ready protection for aging equipment without compromising system safety or performance.\u003c\/strongmaintenance\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongretrofit projects:\u003e Aligns with existing three-phase distribution while preserving protective characteristics and trip behavior.\u003c\/strongretrofit\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongreplacement in commercial environments:\u003e Ideal when your panel requires a 400A, 3-pole, 600V device that matches the original specifications.\u003c\/strongreplacement\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongreliability in demanding applications:\u003e Square D protection trusted in many industrial settings for consistent operation under load.\u003c\/strongreliability\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eImportant compatibility note: confirm fit and ratings before ordering. The \u003cb\u003epart number MHL36400\u003c\/b\u003e is the most reliable reference for compatibility with your panel or enclosure. Always verify that the device’s frame, bus type, and trip specifications align with your system’s requirements, and adhere to local electrical codes during installation.\u003c\/p\u003e \u003cp\u003eInstallation tips for best results: match the breaker's amperage and voltage to your distribution panel, ensure proper mounting and secure connections, and consult the panel’s documentation for any model-specific torque or terminal size guidance. By selecting a purpose-built part like the MHL36400, you’re choosing a proven solution designed to protect both equipment and personnel while maintaining system uptime.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424721391778,"sku":"MHL36400","price":310.0,"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-mhl36400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}