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Schneider Electric LDA36400CU31X - Molded Case Circuit Breaker 400A 600V

Square D
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Schneider Electric Square D LDA36400CU31X is a 3-pole, 400A PowerPact L-Frame molded case circuit breaker designed for primary protection in power distribution systems. It operates at 600VAC with a solid-state MicroLogic 3.3 trip unit providing long time and instantaneous trip functions, and an interrupting rating of 18kA at 480V. The unit measures 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm), weighs 17 lb, and features an I-Line style plug-in connection with lug terminals for 2 x AWG 2/0...500 kcmil aluminum/copper wire. It is 100% rated and complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards. This breaker is suited for industrial applications requiring reliable overcurrent protection in panelboards and switchboards.

Key Features & Specifications
  • Type: LDA
  • Family: Powerpact
  • Frame Size: L Frame
  • Poles: 3
  • Phase: 3
  • Current Rating: 400A
  • Voltage Rating: 600V
  • AIC rating: 18kA@480V
  • Protection: Solid State
  • Trip Type: MicroLogic 3.3
  • Functions: Long Time and Instantaneous Trip
  • Breaker Type: 100% rated
  • Connection: I-Line Style Plug-In
  • Panel Style: I-Line
  • Terminal Connection: I-Line, Lug
  • Wire Size: 2 x AWG 2/0...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
  • Country of Origin: United States


Product Identification
  • UPC: 78590110163
  • GTIN: 00785901101635