{"product_id":"square-d-lja36250u31x-250a-3-pole-plug-in-circuit-breaker","title":"Square D LJA36250U31X - 250 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the \u003cstrong\u003eSquare D LJA36250U31X\u003c\/strong\u003e—a 250 A, 3-pole plug-in molded case circuit breaker engineered to safeguard your electrical distribution with dependable, precise protection. Built for use in panelboards and loadcenters, this unit delivers fast plug-in installation and reliable performance in demanding environments.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for rapid installation and quick replacement, minimizing downtime during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection against overcurrent and short circuits, helping reduce nuisance trips and protect connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures seamless integration with matching loadcenters and panelboards, promoting reliable operation and simplifying installation checks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application range\u003c\/strong\u003e suited for residential, commercial, and light industrial electrical systems, giving you a single solution for multiple projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: LJA36250U31X\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 250 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 \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eWhen you need reliable protection for feeders and branch circuits, this plug-in MCCB delivers. The thermal-magnetic trip mechanism responds quickly to overcurrent or short-circuit conditions, helping to prevent wiring damage, equipment failure, and electrical fires. Its plug-in design reduces installation complexity and downtime, making it ideal for panelboard refreshes, upgrades, or new builds.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing a failed breaker in residential panelboards or commercial loadcenters\u003c\/li\u003e \u003cli\u003eInstalling a high-capacity 250 A feed for dedicated circuits or main distribution paths\u003c\/li\u003e \u003cli\u003eMaintaining code-compliant protection for branch circuits in light industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for best results\u003c\/h3\u003e\n\u003cp\u003eEnsure compatibility by pairing this 250 A, 3-pole plug-in breaker with matching Square D loadcenters or panelboards specified for LJA-series devices. Follow standard electrical wiring practices, verify the panelboard’s ampacity and bus rating align with a 250 A, 3-pole device, and securely engage the plug-in connection to maintain a solid electrical contact. For serviceability, plan swaps or upgrades during scheduled maintenance to minimize power interruptions and confirm proper torque and seating per manufacturer guidelines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355324764322,"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-lja36250u31x-250-a-3-pole-plug-in-circuit-breaker-ampstate-411.webp?v=1788750610","url":"https:\/\/www.ampstate.com\/products\/square-d-lja36250u31x-250a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}