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Square D LJL36250U31X - Molded Case Breaker 600V 250A

Square D
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The Square D LJL36250U31X is a 3-pole molded case circuit breaker from the Powerpact family, designed to provide solid-state protection for electrical systems. It is rated for 600V AC and 250A, with an AIC rating of 65kA at 480V, ensuring robust fault interruption. This L Frame breaker measures 13.4 in x 5.5 in x 4.3 in (H x W x D), weighs 15 lb, and features a feed-thru connection with lug terminals, accommodating wire sizes from AWG 2 to 600 kcmil copper or 500 kcmil aluminum. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, and operates within a temperature range of 28-158 °F (-2-70 °C). Typical industrial applications include motor control centers, distribution panels, and switchboards requiring LI (Long-Time and Instantaneous) protection functions.

Key Features & Specifications
  • Type: Molded Case, Solid State Protection
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm) (Height x Width x Depth)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Motor control centers, distribution panels, switchboards
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable (solid state)
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Shipping Dimensions: 13.4 in x 5.5 in x 4.3 in
  • Phase: 3
  • Voltage: 600V
  • Amperage: 250A
  • AIC rating: 65kA@480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Solid State
  • Functions: LI - Long-Time and Instantaneous
  • 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: 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 applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • 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 specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • 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: Not specified
  • Amperage Maximum: 250A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: AWG 2...600 kcmil copper / AWG 2...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 applicable
  • 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: 785901710592
  • GTIN: 00785901710592