{"product_id":"square-d-lhl364001027","title":"Square D LHL364001027 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D LHL364001027\u003c\/strong\u003e is a high-capacity circuit breaker engineered to shield your largest 3‑phase loads. With a 400 A current rating, 3 poles, and a 600 V maximum, this unit delivers dependable protection for demanding commercial and industrial systems.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e LHL364001027\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this model stands out for heavy-duty installations\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDesigned for three-phase distribution where high current protection is essential, such as main feeders and large motor circuits.\u003c\/li\u003e \u003cli\u003eThree-pole configuration provides synchronized protection across all phases, helping prevent unbalanced loads and equipment damage.\u003c\/li\u003e \u003cli\u003eBuilt to integrate with Square D panels and protection schemes, offering reliable trip performance and consistent response under fault conditions.\u003c\/li\u003e \u003cli\u003eDurable construction trusted in industrial environments, with clear labeling for easy inspection and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical use cases\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtect large motors and feeders in manufacturing lines, CNC machines, conveyors, or air handling units.\u003c\/li\u003e \u003cli\u003eServe as the main or sectional protection in commercial electrical rooms and data center floor distribution where 3‑phase 600 V systems are deployed.\u003c\/li\u003e \u003cli\u003ePair with a compatible Square D enclosure to ensure proper coordination with downstream protective devices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and safety notes\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure system voltage and amperage align with the breaker’s 600 V \/ 400 A rating before installation.\u003c\/li\u003e \u003cli\u003eFollow all applicable electrical codes and consult Square D guidelines for mounting torque and wiring practices.\u003c\/li\u003e \u003cli\u003eOnly trained professionals should install or replace this breaker to maintain panel integrity and personal safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eReady to upgrade your protection? The Square D LHL364001027 400A 3-Pole 600 V Circuit Breaker delivers robust, coordinated safeguarding for heavy-duty systems, helping you minimize downtime and protect critical equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423016210594,"sku":"LHL364001027","price":12905.0,"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-lhl364001027","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}