{"product_id":"square-d-mhf36300-circuit-breaker","title":"Square D | MHF36300 | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D MHF36300 Circuit Breaker — a genuine OEM solution engineered for demanding three-phase systems. With a 300A rating, 3-pole configuration, and a 600V operating range, this breaker is designed to deliver reliable overcurrent protection for industrial and commercial panels where precise compatibility matters.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300 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\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e MHF36300\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this OEM Square D breaker stands out\u003c\/h3\u003e\n\u003cp\u003eChoosing the MHF36300 means selecting a part that aligns exactly with your panel’s design, trip curves, and labeling. As an OEM component, it seamlessly integrates with Square D systems, reducing the risk of incompatibility common with aftermarket options. The 3-pole configuration is ideal for protecting balanced three-phase circuits, helping prevent phase imbalances and ensuring coordinated protection across all conductors.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofits: upgrade legacy panels to current protection standards without reconfiguring wiring or control schemes.\u003c\/li\u003e \u003cli\u003eMaintenance: replace failed or degraded breakers to restore reliable service quickly.\u003c\/li\u003e \u003cli\u003eNew installations: specify exact part numbers for critical applications that demand proven compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it helps you run safer, more reliable systems\u003c\/h3\u003e\n\u003cp\u003eBy specifying a part number that directly matches your equipment, you minimize downtime and ensure that protection settings, trip characteristics, and mounting interfaces align with your existing hardware. The MHF36300 is designed to handle high-current loads typical of industrial equipment, data centers, and manufacturing lines while maintaining robust protection against short circuits and overloads.\u003c\/p\u003e \u003ch3\u003eInstallation and compatibility notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your panel documentation. The MHF36300 is referenced by part number for compatibility, so use it as your primary validation when sourcing replacement breakers. For safe installation, engage a qualified electrician and follow all applicable electrical codes and manufacturer guidelines. Proper handling and torque specifications help preserve performance and trip reliability over the life of the breaker.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426402980002,"sku":"MHF36300","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-mhf36300-circuit-breaker-300a-3-pole-600v-388.webp?v=1789570718","url":"https:\/\/www.ampstate.com\/products\/square-d-mhf36300-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}