{"product_id":"square-d-lga36400u33x-400a-3-pole-plug-in-circuit-breaker","title":"Square D LGA36400U33X - 400 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D LGA36400U33X is a 400 A, 3-pole plug-in molded-case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection inside panelboards and load centers. Built for fast, field-friendly service, this device makes installation or replacement straightforward, minimizing downtime while maintaining superior protection for your electrical distribution.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection:\u003c\/strong\u003e a streamlined installation and quick replacement process that keeps your project on track.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e provides stable, repeatable protection by combining thermal overload sensing with magnetic instantaneous trip for rapid short-circuit response.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design:\u003c\/strong\u003e engineered to fit with matching Square D panelboards and load centers, ensuring coordinated performance and effortless integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application:\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where robust circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: LGA36400U33X\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 400 A\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Plug-in\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eWhy this breaker matters\u003c\/h4\u003e\n\u003cp\u003eWhen your panelboard or load center relies on robust protection for high-current circuits, the LGA36400U33X delivers. Its plug-in design reduces service time during upgrades or replacements, while the thermal-magnetic trip unit ensures dependable protection that responds appropriately to both overloads and short circuits. By matching Square D panelboards and load centers, it helps maintain proper coordination with upstream devices and downstream protection, supporting safer, more reliable power distribution across your facility.\u003c\/p\u003e \u003ch4\u003eIdeal use scenarios\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or maintaining heavy-load residential distribution where a 400 A, 3-pole unit is required.\u003c\/li\u003e \u003cli\u003eCommercial panelboards that demand quick, secure plug-in protection with OEM compatibility.\u003c\/li\u003e \u003cli\u003eLight industrial applications needing durable, high-current branch-circuit protection with fast serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003ePractical tips for installation and care\u003c\/h4\u003e\n\u003cp\u003eEnsure work is performed by qualified personnel in accordance with local electrical codes. Verify that the panelboard is rated for 400 A and that the LGA36400U33X matches the original specification. Use the plug-in method as intended to minimize downtime during swaps, and perform a full system check after installation to confirm proper tripping behavior and secure mounting.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355322241186,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-lga36400u33x-400-a-3-pole-plug-in-circuit-breaker-ampstate-394.webp?v=1788750261","url":"https:\/\/www.ampstate.com\/products\/square-d-lga36400u33x-400a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}