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Square D LGF36400CU31X - Molded Case 400A 600V 3P (35kA AIC)

Square D
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Square D LGF36400CU31X is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit 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 140 mm W x 110 mm D and weighing 15 lb. This solid-state protection device with LI (Long-time and Instantaneous) trip functions is engineered to comply with UL, CSA, NEMA, NOM, and IEC 60947-2 standards. Its feed-thru connection and ability to handle wire sizes from 2/0 AWG to 500 kcmil make it suitable for a range of commercial and industrial panelboard and switchboard applications, operating effectively in ambient temperatures from -2 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection
  • 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)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 400A
  • AIC Rating: 35kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Overcurrent, Short-Circuit
  • Functions: LI (Long-Time & Instantaneous)
  • Frame Size: L Frame
  • Trip Type: Solid State
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Aluminium/Copper)
  • Certification: UL, CSA, NOM
  • Family: Powerpact
  • Country of Origin: United States


Product Identification
  • UPC: 078590195470
  • GTIN: 00785901954705