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Square D PKA36040U31A - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D PKA36040U31A is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a solid-state trip unit with long-time and instantaneous (LI) protection functions, rated for 400A at 600V with an interrupting capacity of 50kA at 480V. The breaker is constructed with a P frame in a compact form factor measuring 326.64 mm H x 210.06 mm W x 204.47 mm D and weighs 32 lb, utilizing an I-Line style plug-in connection for conductors sized from 3/0 AWG to 500 kcmil. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, ensuring suitability for a wide range of commercial and industrial applications requiring robust circuit protection.

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


Product Identification
  • UPC: 060648628627
  • GTIN: 03606486286272