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Square D LGA36400CU44X - Molded Case Circuit Breaker 400A 600V

Square D
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Square D LGA36400CU44X is a molded case circuit breaker designed for providing comprehensive LSIG (Long-Time, Short-Time, Instantaneous, and Ground Fault) protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a robust L Frame measuring 340 mm H x 140 mm W x 110 mm D and weighing 17 lb. This 100% rated, solid-state protection device is constructed for I-Line style plug-in connection with lug terminals, accepting wire sizes from 2/0 AWG to 500 kcmil for aluminum or copper conductors. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards and is typically applied in industrial panels and switchboards requiring a 35kA interrupting capacity at 480V AC, operating effectively within a temperature range of -2 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LGA Type, Solid State Protection, 100% Rated
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 13.4 in H x 5.5 in W x 4.3 in D (340 mm x 140 mm x 110 mm)
  • Weight: 17 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 3
  • Poles: 3
  • Connection: I-Line Style, Lug Terminal
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Aluminum/Copper)
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Functions: LSIG Protection
  • Frame Size: L Frame
  • AIC Rating: 35kA @ 480V AC
  • Breaker Type: Molded Case
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Family: Powerpact
  • Country of Origin: United States


Product Identification
  • UPC: 078590172700
  • GTIN: 00785901727002