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Square D LJA36400U33XABBC - Molded Case Circuit Breaker 400A 600V

Square D
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Square D LJA36400U33XABBC is a molded case circuit breaker designed for providing comprehensive overcurrent protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact L-frame measuring 340 mm H x 112.78 mm W x 78.49 mm D and weighing 13.67 lb. The breaker is certified to UL, CSA, NEMA, NOM, and IEC standards and utilizes a solid-state LSI (Long-Time, Short-Time, Instantaneous) trip unit for precise protection. Its I-Line style plug-in connection and lug terminals, compatible with 2/0 to 500 kcmil conductors, facilitate efficient installation in panelboards for commercial and industrial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, LSI Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 340 mm H x 112.78 mm W x 78.49 mm D (13.39 in x 4.44 in x 3.09 in)
  • Weight: 13.67 lb
  • Standards: UL, CSA, NEMA, NOM, IEC
  • Applications: Industrial Power Distribution, Panelboard Protection
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Poles: 3
  • Protection: Solid State, LSI (Long-Time, Short-Time, Instantaneous)
  • Functions: Overcurrent Protection, Trip Indication
  • Frame Size: L Frame
  • Trip Type: Solid State, Adjustable
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Aluminum/Copper)
  • Certification: UL Listed, CSA Certified, NEMA, NOM, IEC
  • Temp Rating: -2°C to 70°C (28°F to 158°F)
  • Terminal Connection: Lug (AL600LS52K3)
  • Family: Powerpact
  • Manufacturer: Schneider Electric


Product Identification
  • UPC: 785901807957