{"product_id":"square-d-llm36000s40x","title":"Square D LLM36000S40X 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D LLM36000S40X is a robust, industrial-grade circuit breaker designed to safeguard large 3-phase power systems. With a 400 A current rating, 3 poles, and a 600 V working voltage, this unit provides reliable protection for demanding electrical distributions. Part Number LLM36000S40X, it belongs to the trusted Square D LLM family, delivering consistent performance in installation panels, switchgear, and feeders.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 400 A\u003c\/li\u003e \u003cli\u003ePoles: 3 (three-phase protection)\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003eProduct family: Square D LLM molded case circuit breaker\u003c\/li\u003e \u003cli\u003eMounting\/compatibility: designed for Square D panels and bus systems for straightforward replacement and dependable operation\u003c\/li\u003e \u003cli\u003eTrip technology: thermal-magnetic mechanism for reliable overload protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 3-pole model matters\u003c\/h3\u003e\n\u003cp\u003eFor three-phase systems, a dedicated 3-pole breaker like the LLM36000S40X ensures all conductors trip together on fault conditions, reducing arc flash risk and protecting motors, feeders, and downstream equipment. The 400 A rating is well-suited for substantial feeders and medium-to-large loads, while the 600 V rating supports common industrial voltages. This combination simplifies panel design and enhances system reliability in industrial environments, making it a solid choice for new installations or replacements in Square D installations.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMain disconnect or feeder protection in industrial control panels\u003c\/li\u003e \u003cli\u003eProtection for large motors, air handling units, conveyors, and other 3-phase equipment\u003c\/li\u003e \u003cli\u003eReplacement for aging or undersized breakers within Square D electrical distributions\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure your panel supports 600 V operation and is compatible with LLM series breakers before installation\u003c\/li\u003e \u003cli\u003eSecure terminal connections according to the panel’s guidelines and use proper torque as specified in the documentation\u003c\/li\u003e \u003cli\u003eRegularly inspect for signs of wear, overheating, or tripping trends to determine replacement timing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423540039842,"sku":"LLM36000S40X","price":19460.0,"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-llm36000s40x","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}