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Square D PKA36120U44A - Molded Case Breaker 1200A 600V

Square D
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Square D PKA36120U44A is a 3-pole molded case circuit breaker designed for high-capacity electrical protection in industrial power distribution systems. It is rated for 1200 amps at 600V AC with a 50kA interrupting capacity at 480V, utilizing solid-state LSIG protection (Long-Time, Short-Time, Instantaneous, and Ground Fault) for precise fault management. The breaker features an I-Line style plug-in connection, measures 16.16 in (410.46 mm) x 8.27 in (210.06 mm) x 8.05 in (204.47 mm), and weighs 32 lb, accepting wire sizes from 4 x AWG 3/0 to 500 kcmil aluminum/copper. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, with certifications from UL, CSA, and NOM. This circuit breaker is suited for demanding industrial applications requiring robust overcurrent and ground fault protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Current Rating: 1200A
  • Voltage Rating: 600V AC
  • Poles: 3
  • Phase: 3
  • Interrupt Rating: 50kA@480V
  • Protection: Solid State
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault
  • Connection: I-Line Style Plug-In
  • Wire Size: 4 x AWG 3/0...500 kcmil aluminium/copper
  • Dimensions: 16.16 in (410.46 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
  • Country of Origin: United States


Product Identification
  • UPC: 785901542933