{"product_id":"square-d-me36400lig","title":"Square D ME36400LIG 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D ME36400LIG 400A 3-Pole 600 V Circuit Breaker is built for serious industrial power distribution. With a 400-amp current rating, a three-pole design, and a 600-volt maximum, this protector is ready to safeguard feeders and motors in demanding, multi-phase systems.\u003c\/p\u003e \u003cp\u003eWhy this breaker stands out\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole coordination\u003c\/strong\u003e ensures all phases trip together, reducing the risk of phase imbalance and protecting equipment from asymmetric faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip mechanism\u003c\/strong\u003e provides reliable response to overloads and short circuits, helping minimize downtime and electrical damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRugged molded-case construction\u003c\/strong\u003e designed for industrial environments, delivering durable protection for panel boards, switchboards, and motor control centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V compatibility\u003c\/strong\u003e broadens applicability to mid- to high-voltage distribution schemes often found in commercial and industrial facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear identification\u003c\/strong\u003e part number ME36400LIG simplifies sourcing, maintenance, and future replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFeeding large three-phase motors and heavy machinery in manufacturing and processing facilities.\u003c\/li\u003e \u003cli\u003eMain feeder protection for 600V distribution panels and switchgear in industrial settings.\u003c\/li\u003e \u003cli\u003eMotor control center protection where dependable interruption of fault currents is essential for safety and uptime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eHow it compares to other options\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eOffers true 3-pole protection at a robust 400 A rating, providing balanced, cross-phase protection for three-phase circuits versus smaller or single-pole alternatives.\u003c\/li\u003e \u003cli\u003e600 V rating enables seamless integration with existing high- and medium-voltage distribution schemes, reducing compatibility concerns during upgrades or retrofits.\u003c\/li\u003e \u003cli\u003eFrom a trusted brand in electrical protection, ME36400LIG delivers consistency and reliability you can depend on in critical applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for installation and optimization\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify enclosure fit, mounting style, and bus connection requirements to ensure a secure, code-compliant installation.\u003c\/li\u003e \u003cli\u003eConfirm the protection curve and trip characteristics align with your system’s coordination plan to prevent nuisance trips.\u003c\/li\u003e \u003cli\u003eKeep the exact part number ME36400LIG handy for ordering replacements or compatible accessories and for service records.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor industrial power networks that demand dependable, phase-balanced protection, the Square D ME36400LIG 400A 3-Pole 600 V Circuit Breaker delivers the performance and reliability you need to keep equipment protected and uptime high.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423099768994,"sku":"ME36400LIG","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-me36400lig","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}