{"product_id":"square-d-lel36400ls-circuit-breaker","title":"Square D | LEL36400LS | Circuit Breaker | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D \u003cstrong\u003eLEL36400LS\u003c\/strong\u003e 3-Pole Circuit Breaker, built for reliable protection in demanding 480V, three‑phase systems. Designed for maintenance, retrofit, and replacement projects, this breaker delivers precise compatibility when you need to restore safe, uninterrupted power to critical equipment.\u003c\/p\u003e \u003ch2\u003eKey Details\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e LEL36400LS\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e maintenance, retrofit, replacement\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm fit and ratings before ordering; the part number is the best reference for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this 3-Pole breaker matters for 480V systems\u003c\/h2\u003e\n\u003cp\u003eIn a 3-phase environment, a 3-pole breaker like the LEL36400LS provides balanced protection across all conductors, helping prevent uneven loading and potential motor or equipment damage. By synchronizing trip characteristics across all phases, it minimizes the risk of nuisance trips and ensures a coordinated shutdown during faults. This model is engineered to meet Square D standards for dependable performance in industrial panels and switchgear.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing aging breakers in 480V, three-phase distribution panels\u003c\/li\u003e \u003cli\u003eRetrofit projects where exact Square D compatibility is required\u003c\/li\u003e \u003cli\u003eMaintenance replacements to maintain panel reliability and safety\u003c\/li\u003e \u003cli\u003ePanel rebuilds or controlled system upgrades in manufacturing, facilities, and process plants\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility, installation, and practical tips\u003c\/h2\u003e\n\u003cp\u003eBefore you order, verify that your enclosure and panel model align with the LEL36400LS specifications. Because the part number is the most reliable reference for compatibility, use it as the primary check against your equipment’s documentation. Ensure the voltage rating matches your 480V system and that the breaker’s trip characteristics align with your protection strategy. If you’re replacing an original Square D component, confirm mounting style and termination type to guarantee a clean, secure fit in your panel.\u003c\/p\u003e \u003cp\u003ePractical tips for a smooth swap:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePower down the circuit and discharge stored energy before handling the breaker.\u003c\/li\u003e \u003cli\u003eInspect panel branding and enclosures to confirm they accommodate a 3-pole, 480V device.\u003c\/li\u003e \u003cli\u003eMatch the new breaker’s electrical ratings with the system load to avoid mismatches and trips.\u003c\/li\u003e \u003cli\u003eKeep documentation handy: the LEL36400LS part number remains the strongest reference for replacement and retrofits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose Square D for this application\u003c\/h2\u003e\n\u003cp\u003eSquare D is known for robust industrial protective devices that are designed to withstand harsh environments and provide predictable performance. The LEL36400LS carries that legacy, offering dependable protection for 3‑phase 480V circuits with a focus on compatibility, safety, and long-term serviceability in commercial and industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427246756002,"sku":"LEL36400LS","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/square-d-lel36400ls-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}