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Square D JLL36250M75 - Molded Case Circuit Breaker 250A 600V

Square D
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The Square D JLL36250M75 is a Powerpact L-frame molded case circuit breaker designed to provide reliable magnetic-only protection against short-circuit faults in three-phase industrial power distribution systems. It features a 250A current rating and a 600V voltage rating, with a high interrupting capacity of 100kA at 480V AC. The unit is constructed with a compact footprint of 191 mm H x 104 mm W x 86 mm D, utilizes lug-type feed-thru connections, and accepts conductors from 3/0 AWG to 350 kcmil for both copper and aluminum. This breaker complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards and is rated for operation in ambient temperatures from -25°C to 70°C. Its robust design makes it suitable for protecting feeders and branch circuits in industrial panels, switchboards, and motor control centers.

Key Features & Specifications
  • Type: JLL Series, Molded Case Circuit Breaker, Magnetic-Only Protection (LI Trip)
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 7.5 in H x 4.09 in W x 3.4 in D (191 mm x 104 mm x 86 mm)
  • Weight: 5.214 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Feeder & Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC Rating: 100kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Magnetic (Instantaneous Trip)
  • Functions: Long-Time and Instantaneous (LI) Trip
  • Frame Size: L
  • Terminal Connection: Lug
  • Wire Size: 3/0 AWG to 350 kcmil (Copper/Aluminum)
  • Certification: UL Listed, CSA Certified, NOM
  • MCM Size: Minimum 3/0 AWG, Maximum 350 kcmil
  • Mounting: Fixed
  • Family: Powerpact
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901661009
  • GTIN: 00785901661009