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Square D LJL36250U33X - Molded Case Circuit Breaker 250A 600V 3P

Square D
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Square D LJL36250U33X is a molded case circuit breaker designed for providing robust overcurrent and short-circuit protection in industrial power distribution systems. It features a 250A current rating and a 600V voltage rating, housed within a compact L-frame measuring 340 mm x 140 mm x 110 mm (H x W x D) and weighing 15 lb. The breaker is certified to UL, CSA, NOM, and IEC 60947-2 standards and utilizes a solid-state LSI (Long-Time, Short-Time, Instantaneous) trip unit for precise protection. Its feed-thru lug connection and 3-pole design make it suitable for three-phase applications in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, LSI Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 13.4 in (340 mm) H x 5.5 in (140 mm) W x 4.3 in (110 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Coil Voltage Maximum: Not Applicable
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Shipping Dimensions: Not Specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 250A
  • AIC rating: 65kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Solid State
  • Functions: Long-Time, Short-Time, Instantaneous (LSI)
  • Frame Size: L Frame
  • Trip Type: Solid State
  • Panel Type: Not Specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not Applicable
  • Control Voltage Maximum: Not Applicable
  • MCM Size: Accepts 600 kcmil copper / 500 kcmil aluminum
  • Metal Type: Not Specified
  • Panel Style: Not Specified
  • Bus Type: Not Specified
  • Fuse Class: Not Applicable
  • Insulation Temperature: Not Specified
  • Inductance: Not Specified
  • Impedance: Not Specified
  • Barrels: Not Applicable
  • Class Rating: Not Specified
  • Diameter: Not Applicable
  • Velocity: Not Applicable
  • Clip Center: Not Applicable
  • Class: Not Specified
  • Mounting: Fixed
  • Hz: 50/60 Hz
  • Coil Material: Not Applicable
  • Horse Power: Not Specified
  • Aux Contacts: Not Specified
  • CPT: Not Specified
  • Full Load Amps: Not Specified
  • Dist Voltage: Not Specified
  • Bucket Size: Not Applicable
  • Bucket Style: Not Applicable
  • Bucket Type: Not Applicable
  • Full Load Amp Maximum: Not Specified
  • Full Load Amp Minimum: Not Specified
  • Enclosure: Not Specified
  • Relay Style: Not Applicable
  • Coil Voltage Minimum: Not Applicable
  • Wire: Copper or Aluminum
  • Amperage Maximum: 250A
  • Amperage Minimum: Not Specified
  • Nema Rating: Compliant
  • Switch Style: Not Specified
  • Wire Size: AWG 2 to 600 kcmil copper; AWG 2 to 500 kcmil aluminum
  • Certification: UL, CSA, NOM
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Compatible Frames: L Frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not Applicable
  • Breaker Frame: L Frame
  • Current Rating: 250A
  • Reverse Standoff Voltage: Not Applicable
  • Watts: Not Specified
  • Peak Pulse Current: Not Applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not Applicable
  • Breakdown Voltage (VBR@IT) (V): Not Applicable
  • Polarity: Not Applicable
  • Operating Temperature Maximum Celsius: 70 °C
  • Max Clamp Voltage: Not Applicable
  • On-State Current: Not Applicable


Product Identification
  • UPC: 785901597186
  • GTIN: 00785901597186