{"product_id":"square-d-mhl3645025dc1679-circuit-breaker","title":"Square D | MHL3645025DC1679 | Circuit Breaker | 450A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D MHL3645025DC1679 Circuit Breaker — a rugged, high-capacity protection device engineered for demanding electrical systems. With a 450A rating, a 3-pole configuration, and a 600V rating, this breaker is built to safeguard power distribution across three-phase environments while supporting heavy motor and feeder applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current protection:\u003c\/strong\u003e 450A capacity to reliably interrupt large loads and protect critical circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase reliability:\u003c\/strong\u003e 3-Pole design ensures balanced protection across all phases, reducing the risk of uneven fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage resilience:\u003c\/strong\u003e Rated up to 600V, making it suitable for industrial power distribution and motor control centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement:\u003c\/strong\u003e Specifically positioned for scenarios where matching specs are required for upgrades or equipment refreshes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility reference:\u003c\/strong\u003e The part number MHL3645025DC1679 is your best reference for compatibility — confirm fit and ratings before ordering to ensure a seamless install.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis Square D breaker is ideal for industrial panels and systems where dependable overcurrent protection is essential. Use it in maintenance projects, retrofit upgrades, or replacement jobs to extend equipment life, minimize downtime, and maintain consistent electrical performance across your facility.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 450A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart number: MHL3645025DC1679\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427243380898,"sku":"MHL3645025DC1679","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/square-d-mhl3645025dc1679-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}