Square D PJA36040U44A - Molded Case Breaker 400A 600V 3-Pole
Square D PJA36040U44A - Molded Case Breaker 400A 600V 3-Pole

Square D PJA36040U44A - Molded Case Breaker 400A 600V 3-Pole

Square D
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The Square D PJA36040U44A is a 400A, 3-pole molded case circuit breaker from the Powerpact family, designed to provide solid-state protection for industrial power distribution systems. It is rated for 600V AC, 3-phase operation, with an interrupting capacity of 65kA at 480V, and features long time, instantaneous, and ground fault trip functions. The unit measures 12.86 in (326.64 mm) x 8.27 in (210.06 mm) x 8.05 in (204.47 mm) and weighs 32 lb, utilizing an I-Line style plug-in connection with AL800M23K terminals and accommodating wire sizes from 3 x AWG 3/0 to 500 kcmil aluminum or copper. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, with an operating temperature range of 13-158 °F (-25-70 °C). This breaker is suited for industrial applications requiring reliable overcurrent and ground fault protection in panelboards and switchboards.

Key Features & Specifications
  • Type: Molded Case, Solid State
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 12.86 in (326.64 mm) x 8.27 in (210.06 mm) x 8.05 in (204.47 mm) (Height x Width x Depth)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial power distribution, panelboards, switchboards
  • Switch Type: I-Line Style Plug-In
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: 13-158 °F (-25-70 °C)
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 400A
  • AIC rating: 65kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: Solid State
  • Functions: Long Time, Instantaneous, Ground Fault Trip
  • Frame Size: P Frame
  • Trip Type: Solid State
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: 3/0...500 kcmil
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • 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: Plug-In
  • Hz: Not specified
  • Coil Material: Not specified
  • 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 specified
  • Wire: 3 x AWG 3/0...500 kcmil
  • Amperage Maximum: 400A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: I-Line
  • Wire Size: 3 x AWG 3/0...500 kcmil
  • Certification: UL, CSA, NOM
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: AL800M23K
  • Frequency Rating: Not specified
  • Phase Connection: 3-Phase
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Compatible Frames: P Frame
  • Installation Type: Plug-In
  • Item QTY: 1
  • Nema Starter Size: Not specified
  • Breaker Frame: P Frame
  • Current Rating: 400A
  • 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: 785901002963
  • GTIN: 00785901002963