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Square D LGA36400U43XTBYB - Molded Case 400A 480V Breaker

Square D
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Square D LGA36400U43XTBYB is a molded case circuit breaker from the Powerpact family, designed for primary overcurrent protection in power distribution systems. It operates at 480V with a 400A current rating and a 35kA interrupting capacity at 480V, utilizing a solid-state LSI trip unit for long time, short time, and instantaneous protection. The breaker features a three-pole, three-phase configuration within an L frame, with I-Line and lug terminal connections, and measures 13.39 inches in height, 4.44 inches in width, and 3.09 inches in depth, weighing 5.19 lb. It complies with UL, CSA, NEMA, NOM, and IEC standards, with an operating temperature range of 28 to 158 °F (-2 to 70 °C). This unit is suited for industrial and commercial applications requiring reliable circuit protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Type: LGA
  • Dimensions: Height 13.39 in (340 mm) x Depth 3.09 in (78.49 mm) x Width 4.44 in (112.78 mm)
  • Weight: 5.19 lb
  • Terminal Connection: I-Line, Lug
  • Functions: LSI - Long Time, Short Time and Instantaneous Trip
  • Frame Size: L Frame
  • Voltage Rating: 480V
  • Poles: 3
  • Standards: UL, CSA, NEMA, NOM, IEC
  • Protection: Solid State
  • Certification: UL, CSA, NEMA, NOM, IEC
  • AIC rating: 35kA@480V
  • Phase: 3
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Current Rating: 400A


LGA36400U43XTBYB