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Square D LDA36600U44X - Molded Case Circuit Breaker 600A 600V LSIG

Square D
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Square D LDA36600U44X is a Powerpact L Frame molded case circuit breaker designed for providing comprehensive LSIG (Long-Time, Short-Time, Instantaneous, and Ground Fault) protection in three-phase industrial power systems. It features a solid-state trip unit with a 600A current rating and a 600V AC voltage rating, housed in a compact unit measuring 340 mm H x 140 mm W x 110 mm D and weighing 13.7 lb. The breaker is constructed for I-Line style plug-in connection with lug terminals, accepting conductors from 2/0 AWG to 500 kcmil, and complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards. Its 18kA interrupting capacity at 480V AC and operational temperature range of -2°C to 70°C make it suitable for demanding applications in industrial control panels, switchgear, and power distribution equipment.

Key Features & Specifications
  • Type: Powerpact L Frame, Molded Case Circuit Breaker with Solid State LSIG Protection
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Dimensions: 13.4 in H x 5.5 in W x 4.3 in D (340 mm x 140 mm x 110 mm)
  • Weight: 13.7 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Switchgear, Control Panels
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -2°C to 70°C (28°F to 158°F)
  • Phase: 3
  • AIC Rating: 18kA @ 480V AC
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Functions: LSIG Protection
  • Frame Size: L Frame
  • Trip Type: Solid State
  • Terminal Connection: I-Line, Lug
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Aluminium/Copper)
  • Certification: UL, CSA, NOM
  • Country of Origin: United States


Product Identification
  • Manufacturer Part Number: LDA36600U44X
  • Family: Powerpact