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Square D LGA36400CU33X - Molded Case Circuit Breaker 400A 600V

Square D
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Square D LGA36400CU33X is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in 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 17 lb. This 100% rated, solid-state protection device complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring robust performance. Its I-Line style plug-in connection and three-pole, three-phase (ABC) configuration make it suitable for main feeder and branch circuit applications in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection with Long Time, Short Time, and Instantaneous Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 13.4 in (340 mm) H x 5.5 in (140 mm) W x 4.3 in (110 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Main Feeders, Branch Circuits
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Phase: 3
  • AIC Rating: 35kA @ 480V
  • Connection: I-Line Style Plug-In
  • Terminal Connection: I-Line, Lug
  • Protection: Solid State
  • Functions: Long Time, Short Time, Instantaneous Trip
  • Frame Size: L Frame
  • Breaker Type: 100% Rated
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Wire Size: 2 x AWG 2/0...500 kcmil (Aluminium/Copper)
  • MCM Size: Min. 2/0 AWG, Max. 500 kcmil (Cu/Al)
  • Certification: UL, CSA, NOM
  • Phase Connection: ABC
  • Country of Origin: United States
  • Family: Powerpact
  • Item Subcategory: Molded Case


Product Identification
  • UPC: 785901193531
  • GTIN: 00785901193531