{"product_id":"square-d-q4l2400-circuit-breaker","title":"Square D | Q4L2400 | Circuit Breaker | 400A | 2-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D Q4L2400 Circuit Breaker\u003c\/strong\u003e — a robust 400A, 2-pole device engineered for 240V protection. Designed to support maintenance, retrofit, and replacement projects, this breaker is built to slot into compatible Square D panels where a precise part reference ensures proper fit and reliable performance.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance: 400A rating, 2-pole configuration, 240V operating voltage. When you're updating an electrical system, choosing the exact part number \u003cstrong\u003eQ4L2400\u003c\/strong\u003e is the best reference for compatibility, ensuring the breaker fits the enclosure, matches the panel's trip characteristics, and interfaces cleanly with your wiring layout.\u003c\/p\u003e \u003ch3\u003eWhat makes this breaker stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current protection\u003c\/strong\u003e designed for main feeders in 240V panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSimple, reliable replacement\u003c\/strong\u003e for legacy Square D installations when you need a 400A, 2-pole unit without changing other components.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference\u003c\/strong\u003e the part number \u003cstrong\u003eQ4L2400\u003c\/strong\u003e is your best guide to fit and ratings—verify before ordering.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance-friendly\u003c\/strong\u003e supports routine service and retrofits, helping minimize downtime and disruption.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and replacement in existing Square D panels requiring a 400A, 2-pole, 240V device.\u003c\/li\u003e \u003cli\u003eRetrofits where upgrading feeder protection or expanding capacity calls for a robust 400A breaker.\u003c\/li\u003e \u003cli\u003eNew installations that align with Square D specifications and the Q4L2400 reference to ensure seamless operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against the panel labeling and schematics. Rely on the Q4L2400 part number as the most reliable compatibility reference to ensure proper mounting and wiring. Always follow proper safety procedures when working with electrical panels to protect yourself and the system.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e Q4L2400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D Q4L2400, you get a trusted component that aligns with your panel’s protection strategy and electrical design. It’s a practical, dependable choice for serious protection needs—delivering reliable performance where it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424730206370,"sku":"Q4L2400","price":6160.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-q4l2400-circuit-breaker-400a-2-pole-240v-347.webp?v=1789408890","url":"https:\/\/www.ampstate.com\/products\/square-d-q4l2400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}