{"product_id":"square-d-mhl366001288-circuit-breaker","title":"Square D | MHL366001288 | Circuit Breaker | 600A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D MHL366001288 Circuit Breaker is a rugged, high-capacity protective device engineered for demanding electrical environments. With a 600A rating, a 3-pole configuration, and a 600V maximum, it provides reliable interruption and protection for three-phase power systems. Ideal for maintenance, retrofit, and replacement projects where exact compatibility matters, this breaker is designed to slot into existing Square D installations with confidence.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 600A\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: MHL366001288\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest uses\u003c\/strong\u003e: maintenance, retrofit, and replacement in compatible Square D installations\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility note\u003c\/strong\u003e: Confirm fit and ratings before ordering; the part number is the most reliable reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit for reliable protection\u003c\/strong\u003e: Using the precise part number MHL366001288 minimizes field adjustments and alignment issues, reducing installation time and potential misfits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for three-phase systems\u003c\/strong\u003e: The 3-Pole design supports balanced protection across all three phases in industrial and commercial power layouts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability\u003c\/strong\u003e: Built to support continuous operation in demanding environments while safeguarding equipment and personnel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance or replacement in existing Square D panels and distribution boards\u003c\/li\u003e \u003cli\u003eRetrofit projects where a high-amperage, three-phase protection device is required\u003c\/li\u003e \u003cli\u003eUpgrades to restore or enhance protective coverage in 600V, three-phase networks\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to verify fit and install\u003c\/h3\u003e\n\u003col\u003e \u003cli\u003eIdentify the target panel or distribution equipment and confirm it accepts Square D MHL-series breakers\u003c\/li\u003e \u003cli\u003eMatch the current rating (600A), number of poles (3), and voltage rating (600V) to your system requirements\u003c\/li\u003e \u003cli\u003eUse the part number MHL366001288 as the definitive reference for compatibility\u003c\/li\u003e \u003cli\u003eProceed with installation according to your panel’s guidelines and local electrical codes\u003c\/li\u003e\n\u003c\/ol\u003e \u003cp\u003eFor projects requiring dependable, industry-standard protection in 600V three-phase networks, the Square D MHL366001288 Circuit Breaker delivers a precise, compatible solution—streamlining maintenance, retrofit, and replacement while keeping systems safe and compliant.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424417730722,"sku":"MHL366001288","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-mhl366001288-circuit-breaker-600a-3-pole-600v-695.webp?v=1789356083","url":"https:\/\/www.ampstate.com\/products\/square-d-mhl366001288-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}