{"product_id":"square-d-me36400li","title":"Square D ME36400LI 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D ME36400LI 400A 3-Pole 600 V Circuit Breaker—a rugged, industrial-grade protector built to keep demanding electrical systems safe. With Part Number ME36400LI, this device delivers a robust 400 A current rating across three poles in 600 V three-phase networks, making it a reliable cornerstone for large distribution panels.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current three-phase protection:\u003c\/strong\u003e The 400 A rating is purpose-built for heavy feeders, motors, and large loads, helping prevent costly outages from overloads and faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCoordinated three-pole design:\u003c\/strong\u003e With three poles working in unison, this breaker ensures synchronized trip across all phases, reducing the risk of phase imbalance and protecting interconnected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V system readiness:\u003c\/strong\u003e Engineered for common industrial power architectures, it fits right into 600 V distribution networks found in manufacturing facilities, processing plants, and large commercial installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy identification and replacement:\u003c\/strong\u003e Part Number ME36400LI provides a precise match for upgrades, maintenance, and component compatibility within Square D ecosystems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal applications and use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMain feeders and large distribution panels in manufacturing plants that run on 600 V three-phase power.\u003c\/li\u003e \u003cli\u003eMotor control centers and heavy equipment locations where reliable overload and short-circuit protection are essential.\u003c\/li\u003e \u003cli\u003eFacility upgrades or retrofits requiring a precise 400 A, 3-pole solution with industry-standard compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat problems it solves\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePrevents downtime by interrupting excessive current before equipment is damaged.\u003c\/li\u003e \u003cli\u003eMaintains system stability through coordinated tripping across all phases, protecting motors and drives from unbalanced loads.\u003c\/li\u003e \u003cli\u003eProvides a dependable, traceable component for upgrades and maintenance in large electrical distributions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for installation and reliability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify the system voltage and amperage match the 600 V \/ 400 A specifications before installation.\u003c\/li\u003e \u003cli\u003eEnsure terminals are torqued to the enclosure manufacturer’s guidelines to maintain a solid, vibration-resistant connection.\u003c\/li\u003e \u003cli\u003eUse this breaker within appropriate panels and housings designed for Square D devices to maintain performance and serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Square D ME36400LI 400A 3-Pole 600 V Circuit Breaker when you need dependable, three-phase protection for demanding 600 V power systems. It combines precise identification, robust protection, and proven performance to keep critical equipment safe and operations running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423099801762,"sku":"ME36400LI","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-me36400li-400a-3-pole-600-v-circuit-breaker-127.webp?v=1789269619","url":"https:\/\/www.ampstate.com\/products\/square-d-me36400li","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}