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Square D LGA36400U43X - 400A 3P MCCB (600V, Solid State)

Square D
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Square D LGA36400U43X is a 3-pole, 400A molded case circuit breaker from the Powerpact family, designed for overcurrent protection in industrial and commercial power distribution systems. It operates at a voltage rating of 600VAC with a solid state protection system providing long time, short time, and instantaneous trip functions, and an AIC rating of 35kA at 480V. The unit features an L Frame size, I-Line style plug-in connection, and terminal connections via I-Line and lug, with dimensions of 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm) and a weight of 17 lb. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, holding certifications from UL, CSA, and NOM. This breaker is suited for use in switchgear, panelboards, and main distribution applications requiring reliable solid state protection.

Key Features & Specifications
  • Type: LGA
  • Family: Powerpact
  • Item Subcategory: Molded Case
  • Manufacturer: Schneider Electric
  • Country of Origin: United States
  • Current Rating: 400A
  • Voltage Rating: 600VAC
  • Poles: 3
  • Phase: 3
  • Frame Size: L Frame
  • Protection: Solid State
  • Functions: Long Time, Short Time and Instantaneous Trip
  • AIC rating: 35kA@480V
  • Connection: I-Line Style Plug-In
  • Terminal Connection: I-Line, Lug
  • Wire Size: AWG 3/0...500 kcmil aluminium/copper
  • 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 lb
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM


Product Identification
  • UPC: 785901702641
  • GTIN: 00785901702641