{"product_id":"square-d-jja36250u44x-250a-600v-3-pole-plug-in-circuit-breaker","title":"Square D JJA36250U44X - 250 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D JJA36250U44X—a robust 250 A, 600 V, 3-pole plug-in molded case circuit breaker designed to guard panelboards and load centers from overcurrent and short-circuit events. Built for dependable protection and straightforward maintenance, this unit is a trusted choice for demanding electrical setups across residential, commercial, and light industrial environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and painless replacements, minimizing downtime during routine maintenance or panel upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e250 A at 600 V\u003c\/strong\u003e supports high-demand three-phase circuits while keeping protection precise and reliable.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e delivers coordinated three-phase protection for balanced loads and safer system operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across varying load conditions with an instantaneous magnetic response for high fault currents.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e engineered to drop into matching Square D load centers and panelboards, ensuring proper fit, bus alignment, and trip coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e ideal for branch circuit overcurrent and short-circuit protection in a range of commercial and light industrial installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow it works\u003c\/strong\u003e: The thermal element responds to sustained overloads, while the magnetic element activates during severe faults, rapidly interrupting current to protect conductors and connected equipment. The plug-in mounting maintains a secure connection to the bus, enabling reliable protection with minimal maintenance downtime.\u003c\/p\u003e \u003ch4\u003eTechnical specifications\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e JJA36250U44X\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 250A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for electrical pros stocking Square D components for service upgrades, panel refurbishments, or new installations that require a dependable 3-pole, 250 A plug-in breaker. With the JJA36250U44X, you get precise protection, quick installation, and seamless compatibility with your existing Square D infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355306479778,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_907707c7-a75f-43fe-ad55-fa020f295f80.png?v=1764691140","url":"https:\/\/www.ampstate.com\/products\/square-d-jja36250u44x-250a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}