{"product_id":"square-d-mhl3630025dc1679-circuit-breaker","title":"Square D | MHL3630025DC1679 | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D MHL3630025DC1679 Circuit Breaker — a purpose-built protection device engineered for demanding three-phase systems. With a 300A interrupt rating, a 3-pole configuration, and a 600V rating, this breaker is crafted for maintenance, retrofit, and replacement projects where exact specifications matter. \u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e MHL3630025DC1679\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose this Square D breaker\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e precise compatibility:\u003c\/strong\u003e The part number MHL3630025DC1679 is the best reference for matching Square D specifications in your panel or distribution setup.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for three-phase protection:\u003c\/strong\u003e The 3-Pole configuration provides balanced protection across all three phases, helping prevent uneven loading and equipment damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V capacity for industrial and commercial use:\u003c\/strong\u003e Suitable for systems requiring higher voltage protection, aligning with many lighting, motor, and process applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e Retrofit-ready option:\u003c\/strong\u003e Ideal for replacing aging breakers or upgrading panels where a 300A, 3P, 600V spec is required without overhauling the entire distribution.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service upgrades in existing electrical rooms where exact Square D specifications are mandatory.\u003c\/li\u003e \u003cli\u003eRetrofit projects that replace older protective devices with a modern, properly rated 3P, 600V solution.\u003c\/li\u003e \u003cli\u003eNew installations within panelboards and distribution boards that require a 300A breaker to safely protect large feeders and motor loads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and ordering tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure seamless replacement. The part number MHL3630025DC1679 is the most reliable reference for compatibility, helping you avoid mismatches in trip characteristics or mounting geometry. If you’re upgrading or matching a replacement, double-check that your panel’s labeling and bus bar configuration align with this 3-Pole, 600V device.\u003c\/p\u003e \u003cp\u003eFor electricians and facility managers, this Square D breaker offers a straightforward path to robust protection, precise matching, and dependable performance in three-phase power environments. If you need a dependable, specification-aligned 300A, 3-Pole, 600V circuit breaker, the MHL3630025DC1679 is a clear, compatible choice for maintenance, retrofit, and replacement projects.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427243446434,"sku":"MHL3630025DC1679","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-mhl3630025dc1679-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}