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Square D LGA36400U44X - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D LGA36400U44X is a molded case circuit breaker designed for providing comprehensive protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, with a 35kA interrupting capacity at 480V for reliable fault protection. The breaker is constructed with a solid-state LSIG trip unit for long-time, short-time, instantaneous, and ground fault protection, housed in a compact L-frame measuring 340 mm H x 140 mm W x 110 mm D and weighing 17 lb. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring suitability for a wide range of commercial and industrial applications requiring a robust I-Line style plug-in connection for conductors from AWG 3/0 to 500 kcmil.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, L Frame, Solid State LSIG 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)
  • Weight: 17 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Phase: 3
  • AIC Rating: 35kA @ 480V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Poles: 3
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Functions: Overcurrent and Ground Fault Protection
  • Frame Size: L Frame
  • Trip Type: Solid State
  • Wire Size: AWG 3/0 to 500 kcmil (Aluminium/Copper)
  • Certification: UL, CSA, NOM
  • Temp Rating: -2°C to 70°C (28°F to 158°F)
  • Family: Powerpact
  • Country of Origin: Mexico


Product Identification
  • UPC: 3606486284186
  • GTIN: 03606486284186