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Square D PGA36040CU31A - 3-Pole 400A Molded Case Breaker

Square D
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Square D PGA36040CU31A is a 3-pole, 400A molded case circuit breaker from the Powerpact family, engineered for primary overcurrent protection in power distribution systems. It operates at 600VAC with a solid-state trip unit providing long time, short time, and instantaneous protection, and delivers a 35kA interrupting rating at 480V. The unit features an I-Line style plug-in connection, a P Frame size, and accommodates 3 x AWG 3/0...500 kcmil aluminum/copper wire, with dimensions of 12.86 in x 8.27 in x 8.05 in and a weight of 32 lb. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, and is certified by UL, CSA, and NOM. This circuit breaker is suited for industrial and commercial applications requiring robust, solid-state overcurrent protection in a plug-in format.

Key Features & Specifications
  • Type: PGA
  • Current Rating: 400A
  • Voltage Rating: 600V
  • Poles: 3
  • Frame Size: P Frame
  • Connection: I-Line Style Plug-In
  • Protection: Solid State
  • Functions: Long Time, Short Time and Instantaneous Trip
  • AIC rating: 35kA@480V
  • Wire Size: 3 x AWG 3/0...500 kcmil aluminium/copper
  • 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)
  • Weight: 32 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Phase: 3


PGA36040CU31A