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Square D PKA36040CU63AE1 - Molded Case Breaker 400A 600V 3P

Square D
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Square D PKA36040CU63AE1 is a molded case circuit breaker designed for providing robust overcurrent and short-circuit protection in demanding three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact P Frame measuring 326.64 mm H x 210.06 mm W x 204.47 mm D and weighing 32 lb. The breaker is constructed with solid-state protection technology offering LSI (Long-Time, Short-Time, Instantaneous) trip functions and complies with key industry standards including UL, CSA, NEMA, and IEC 60947-2. Its I-Line style plug-in connection facilitates installation in panelboards, making it suitable for protecting feeders and branch circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection with LSI Functions
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 12.86 in (326.64 mm) H x 8.27 in (210.06 mm) W x 8.05 in (204.47 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Feeder and Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 3
  • Poles: 3
  • AIC Rating: 50kA @ 480V
  • Connection: I-Line Style Plug-In
  • Protection: Solid State, LSI (Long-Time, Short-Time, Instantaneous)
  • Functions: LSI Trip Functions
  • Frame Size: P Frame
  • Trip Type: Solid State
  • Breaker Type: Molded Case
  • Wire Size: 3 x AWG 3/0...500 kcmil (Aluminium/Copper)
  • Certification: UL, CSA, NOM
  • Family: Powerpact
  • Country of Origin: United States
  • Weight: 32 lb


Product Identification
  • Manufacturer Part Number: PKA36040CU63AE1