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Square D LGL36400CU31X - Molded Case Breaker 400A 600V

Square D
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Square D LGL36400CU31X is a 100% rated PowerPact L molded case circuit breaker designed for overload and short-circuit protection in industrial and commercial power distribution systems. This three-pole, 400A breaker operates at 600V AC with a solid-state electronic trip unit providing Long-Time and Instantaneous (LI) protection functions, and delivers an interrupting rating of 35kA at 480V. It features a compact L Frame design measuring 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm) with a weight of 17.059 lb, and uses lug-type terminals accepting 2 x AWG 2/0 to 500 kcmil aluminum or copper wire. The unit is certified to UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, and is manufactured in Mexico by Schneider Electric. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers requiring reliable 100% continuous current handling.

Key Features & Specifications
  • Type: LGL
  • Family: Powerpact
  • Item Subcategory: Molded Case
  • Current Rating: 400A
  • Voltage Rating: 600V
  • Poles: 3
  • Phase: 3
  • Frame Size: L Frame
  • Protection: Solid State
  • Functions: LI - Long-Time and Instantaneous
  • Breaker Type: 100% rated
  • AIC rating: 35kA@480V
  • Terminal Connection: Lug
  • Wire Size: 2 x AWG 2/0...500 kcmil aluminium/copper
  • Connection: Feed-Thru
  • Dimensions: 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm) (Height x Width x Depth)
  • Weight: 17.059 lb
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901631828
  • GTIN: 00785901631828