{"product_id":"jja36250u31x-square-d-250a-3pole-600v-iline-solid-state-mccb","title":"Square D JJA36250U31X 250A 3-Pole 600V I-Line Solid State Circuit Breaker","description":"\u003cp\u003eThe \u003cstrong\u003eSquare D JJA36250U31X\u003c\/strong\u003e is a 3-pole, 250-amp solid-state molded case circuit breaker (MCCB) rated for 600VAC with I-Line plug-in mounting. Manufactured by Schneider Electric, this JJ-frame breaker features an adjustable electronic trip unit for precise overcurrent protection of large industrial feeder and main circuits in three-phase 600V systems.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eJJA36250U31X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSquare D \/ Schneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage Rating\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e600VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Poles\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Type\u003c\/td\u003e\n\u003ctd\u003eSolid State (Electronic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eI-Line Plug-In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterrupting Rating\u003c\/td\u003e\n\u003ctd\u003e65kA @ 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL 489 Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Series\u003c\/td\u003e\n\u003ctd\u003eJJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAdjustable solid-state trip unit with long-time, short-time, and instantaneous settings for selective coordination\u003c\/li\u003e\n\u003cli\u003eI-Line plug-in mounting for fast installation in Square D JJ-frame compatible switchboards\u003c\/li\u003e\n\u003cli\u003e250A rating for large industrial feeder and main circuit protection\u003c\/li\u003e\n\u003cli\u003e3-pole for complete three-phase 600V protection\u003c\/li\u003e\n\u003cli\u003eHigh 65kA interrupting rating at 600V\u003c\/li\u003e\n\u003cli\u003eUL 489 Listed, NEC compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIndustrial feeder and sub-main protection in 600V switchboards\u003c\/li\u003e\n\u003cli\u003eMotor control center (MCC) main incoming protection\u003c\/li\u003e\n\u003cli\u003eHeavy manufacturing and process facility power distribution\u003c\/li\u003e\n\u003cli\u003eSystems requiring selective coordination with adjustable trip settings\u003c\/li\u003e\n\u003cli\u003eData center and critical infrastructure 600V feeder circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is the Square D JJA36250U31X?\u003c\/h3\u003e\u003cp\u003eThe JJA36250U31X is a 250-amp, 3-pole, 600V solid-state I-Line plug-in MCCB from Square D used to protect large feeder and main circuits in three-phase 600V industrial and commercial electrical distribution systems.\u003c\/p\u003e\u003ch3\u003eWhat does U31X mean in the JJA36250U31X part number?\u003c\/h3\u003e\u003cp\u003eThe U31X suffix identifies the rating plug configuration of the solid-state electronic trip unit, which sets the adjustable current pickup range. This differs from U33X and U44X variants. Consult Schneider Electric documentation to confirm the correct plug for your coordination study.\u003c\/p\u003e\u003ch3\u003eHow does the JJA36250U31X differ from JJA36250U33X or JJA36250U44X?\u003c\/h3\u003e\u003cp\u003eAll three are Square D 250A, 3-pole, 600V I-Line solid-state JJ-frame MCCBs. The U31X, U33X, and U44X suffixes indicate different rating plug configurations that affect the adjustable trip current range of the electronic trip unit. Select the correct suffix based on your protection coordination requirements.\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48395611078904,"sku":"JJA36250U31X-N","price":1764.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/shopping-2-1-scaled.jpg?v=1778785485","url":"https:\/\/alphabreakersandcontrols.com\/products\/jja36250u31x-square-d-250a-3pole-600v-iline-solid-state-mccb","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}