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Square D JDL36250CU31X - Molded Case Circuit Breaker 250A 600V

Square D
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The Square D JDL36250CU31X is a 3-pole molded case circuit breaker from the Powerpact family, designed for solid-state protection with long-time and instantaneous (LI) trip functions in industrial power distribution systems. It is rated for 600V AC, 250A continuous current, and an interrupting capacity of 18kA at 480V, with a 3-phase configuration and feed-thru connection. The breaker measures 7.5 in (191 mm) in height, 4.09 in (104 mm) in width, and 3.4 in (86 mm) in depth, weighing 5 lb, and features lug terminals accepting wire sizes from 3/0 AWG to 350 kcmil (copper/aluminum). It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, operating within a temperature range of 28-158 °F (-2-70 °C). Typical applications include motor control centers, switchboards, and industrial panelboards requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, LI (Long-Time and Instantaneous) Trip
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 7.5 in (191 mm) x 4.09 in (104 mm) x 3.4 in (86 mm) (H x W x D)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial power distribution, motor control centers, switchboards, panelboards
  • Switch Type: Feed-Thru
  • Configuration: 3-Pole, 3-Phase
  • Coil Voltage Maximum: Not applicable (solid state)
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 250A
  • AIC rating: 18kA@480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Solid State (LI)
  • Functions: Long-Time and Instantaneous
  • Frame Size: J
  • Trip Type: Solid State
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Min. 3/0 AWG, Max. 350 kcmil (Cu/Al)
  • 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 specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Not specified
  • Hz: Not specified
  • 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 specified
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 250A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Feed-Thru
  • Wire Size: AWG 3/0...350 kcmil (Cu/Al)
  • Certification: UL, CSA, NOM
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Lug
  • Frequency Rating: Not specified
  • Phase Connection: 3-Phase
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Compatible Frames: J Frame
  • Installation Type: Not specified
  • Item QTY: 1
  • Nema Starter Size: Not specified
  • Breaker Frame: J
  • Current Rating: 250A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: 70 °C
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 785901994251
  • GTIN: 00785901994251