{"product_id":"square-d-mhl364001212","title":"Square D MHL364001212 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D MHL364001212 400A 3-Pole 600 V Circuit Breaker — a purpose-built protective device from Square D’s MHL-series molded-case breakers. This exact part (MHL364001212) delivers a robust 400 A current rating, with three poles and a 600 V maximum rating, making it a reliable choice for demanding three-phase power distribution in industrial settings.\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 protection\u003c\/strong\u003e: 400 A rating designed to guard heavy feeders and motors while minimizing nuisance trips in busy electrical panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e: Simultaneous disconnection of all three phases for safe shutdown in three-phase systems and enhanced protection for multi‑branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V rating\u003c\/strong\u003e: Suitable for typical industrial voltage levels, supporting a wide range of equipment and applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted brand lineage\u003c\/strong\u003e: Part of Square D’s MHL-series, recognized for dependable protection in commercial and industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact replacement part\u003c\/strong\u003e: Identified by part number MHL364001212, ensuring precise compatibility when upgrading or replacing existing protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing a main feeder or distribution breaker in three-phase industrial panels and switchgear.\u003c\/li\u003e \u003cli\u003eProtecting large motors, conveyors, pumps, and other high‑current loads in manufacturing, processing, or heavy equipment facilities.\u003c\/li\u003e \u003cli\u003eSystems operating up to 600 V that require reliable, discrete protection for multi‑phase circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and compatibility tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm that your enclosure accepts MHL-series molded-case breakers and that the panel labeling supports a 3‑pole, 400 A, 600 V device.\u003c\/li\u003e \u003cli\u003eWhen replacing, power down the system and follow the panel manufacturer’s torque and installation guidelines to ensure a secure, safe connection.\u003c\/li\u003e \u003cli\u003eThis part is specifically identified as MHL364001212—useful for precise replacements in systems designed around Square D protection schemes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Square D MHL364001212 means selecting a dependable, high‑capacity protection solution for demanding electrical environments. With its 400 A current rating, 3‑pole configuration, and 600 V rating, this breaker provides clear, reliable protection for critical industrial tasks and distributed three‑phase power, helping you safeguard equipment and maintain uptime. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423099048098,"sku":"MHL364001212","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-mhl364001212-400a-3-pole-600-v-circuit-breaker-776.webp?v=1789269528","url":"https:\/\/www.ampstate.com\/products\/square-d-mhl364001212","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}