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Square D PJA36040U44B - Molded Case Breaker 600V 400A 3-Pole

Square D
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Square D PJA36040U44B is a Powerpact molded case circuit breaker from Schneider Electric designed for solid-state overcurrent protection in industrial power distribution systems. This three-pole breaker is rated for 600VAC at 400A, with a P Frame construction and a solid-state trip unit providing precise protection coordination. The unit measures 12.86 inches in height, 8.27 inches in width, and 8.05 inches in depth, weighing 37 lb, and features AL800M23K terminal connections accepting 3 x AWG 3/0 to 500 kcmil aluminum or copper wire. It complies with CE, UL, CSA, NEMA, NOM, IEC, and RoHS standards, with an operating temperature range of 13 to 158 °F (-25 to 70 °C). Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers within commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Trip
  • Voltage Rating: 600 VAC
  • Current Rating: 400 A
  • Dimensions: Height 12.86 in (326.64 mm) x Width 8.27 in (210.06 mm) x Depth 8.05 in (204.47 mm)
  • Standards: CE, UL, CSA, NEMA, NOM, IEC, RoHS
  • Applications: Industrial power distribution, main or feeder protection
  • Switch Type: Powerpact
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: 13-158 °F (-25-70 °C)
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 600 VAC
  • Amperage: 400 A
  • AIC rating: Not specified
  • Connection: AL800M23K
  • Poles: 3
  • Protection: Solid State
  • Functions: Overcurrent protection
  • 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 to 500 kcmil
  • 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 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 aluminium/copper
  • Amperage Maximum: 400 A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: 3/0 to 500 kcmil
  • Certification: CE, UL, CSA, NEMA, NOM, IEC, RoHS
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: AL800M23K
  • Frequency Rating: Not specified
  • Phase Connection: Three-phase
  • Standards: CE, UL, CSA, NEMA, NOM, IEC, RoHS
  • Compatible Frames: P Frame
  • Installation Type: Not specified
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: P Frame
  • Current Rating: 400 A
  • 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: 762179027508