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Square D JJL36250U33X - Molded Case Circuit Breaker 250A 600V 3P

Square D
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Square D JJL36250U33X is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 250A current rating and a 600V voltage rating, housed within a compact J-frame measuring 191 mm x 104 mm x 86 mm (7.5 in x 4.09 in x 3.4 in) and weighing 5.203 lb. This three-pole, feed-thru breaker with lug terminals and solid-state protection is engineered to UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring compliance for robust industrial applications. Its LI (Long-time and Instantaneous) trip functions and a 65kA interrupting capacity at 480V make it suitable for protecting feeders and branch circuits in commercial and industrial facilities, operating effectively within a temperature range of -2 to 70 °C (28 to 158 °F) and accommodating wire sizes from 3/0 AWG to 350 kcmil for both copper and aluminum conductors.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, LI (Long-Time & Instantaneous) Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 191 mm H x 104 mm W x 86 mm D (7.5 in x 4.09 in x 3.4 in)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial and Commercial Power Distribution, Feeder and Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Feed-Thru
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Lug Terminal
  • Poles: 3
  • Protection: Solid State
  • Functions: LI (Long-Time and Instantaneous)
  • Frame Size: J
  • Wire Size: 3/0 AWG to 350 kcmil (Copper/Aluminum)
  • Certification: UL, CSA, NOM
  • MCM Size: Min. 3/0 AWG, Max. 350 kcmil (Cu/Al)
  • Terminal Connection: Lug
  • Frequency Rating: Standard 50/60 Hz
  • Phase Connection: 3-Phase
  • Compatible Frames: Powerpact J-Frame
  • Installation Type: Fixed
  • Breaker Frame: J
  • Operating Temperature Maximum Celsius: 70 °C
  • Weight: 5.203 lb


Product Identification
  • UPC: 785901511762
  • GTIN: 00785901511762