{"product_id":"square-d-mel36800lsg-circuit-breaker","title":"Square D | MEL36800LSG | Circuit Breaker | 800A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D MEL36800LSG circuit breaker delivers rugged, high-capacity protection for demanding industrial power systems. Rated for \u003cstrong\u003e800A\u003c\/strong\u003e, with a \u003cstrong\u003e3-pole\u003c\/strong\u003e configuration and a \u003cstrong\u003e600V\u003c\/strong\u003e maximum, this unit is built to safeguard large feeders, motor circuits, and panelboards from overloads and short circuits. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, the MEL36800LSG remains the trusted reference for compatibility—the part number itself is your best guide when matching to panels and MCCBs.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection\u003c\/strong\u003e ensures balanced fault protection across all three phases in a 3-phase system, reducing the risk of uneven loading and equipment damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e800A rating\u003c\/strong\u003e supports high-load environments, enabling reliable operation of heavy machinery and large feeders without unnecessary trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V voltage rating\u003c\/strong\u003e fits standard industrial distribution networks, making it suitable for a wide range of facilities and applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGenuine Square D reliability\u003c\/strong\u003e and the assurance of spare-part availability simplify maintenance and long-term serviceability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference\u003c\/strong\u003e by using the MEL36800LSG part number to confirm fit with your panel, MCCB lineup, or switchgear before installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e include retrofits in legacy Square D panels where the MEL36800LSG matches existing specifications, replacement for aging circuit breakers in large feeders, and maintenance upgrades in facilities with high-current motors and conveyors.\u003c\/li\u003e \u003cli\u003ePerfect for new installations requiring robust three-phase protection at 600V in manufacturing plants, data centers, and other industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eBefore ordering, ensure your system expects an \u003cstrong\u003e800A, 3-pole, 600V\u003c\/strong\u003e device and that the MEL36800LSG aligns with your panel’s frame, bus type, and rating. The part number is the most reliable reference for compatibility, and cross-checking with your panel documentation will help prevent misfits during replacement or retrofitting.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eWhat you get:\u003c\/strong\u003e 1 x MEL36800LSG circuit breaker designed for 3-pole, 800A, 600V service.\u003c\/li\u003e \u003cli\u003eBacked by Square D’s engineering standards and ongoing support for parts and service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eReady to upgrade or retrofit your distribution system with definitive protection? Use the MEL36800LSG as your precise reference for compatibility and protection you can trust in demanding, real-world environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426344849570,"sku":"MEL36800LSG","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-mel36800lsg-circuit-breaker-800a-3-pole-600v-230.webp?v=1789560340","url":"https:\/\/www.ampstate.com\/products\/square-d-mel36800lsg-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}