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Square Electric LJL36400U44X - Molded Case Circuit Breaker 400A 600V

Square D
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Square Electric LJL36400U44X is a PowerPact L Frame molded case circuit breaker designed for overcurrent and ground fault protection in commercial and industrial power distribution systems. Rated at 400A and 600VAC with three poles, it utilizes a solid-state MicroLogic 6.3A electronic trip unit providing LSIG (long-time, short-time, instantaneous, and ground fault) protection. This unit mount breaker features line/load lug connections, weighs 15 lb, and measures 13.4 in (340 mm) by 5.5 in (140 mm) by 4.3 in (110 mm) in height, width, and depth. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, with an AIC rating of 65kA at 480V. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Family: Powerpact
  • Type: LJL
  • Frame Size: L Frame
  • Current Rating: 400A
  • Voltage Rating: 600V
  • Poles: 3
  • Phase: 3
  • Protection: Solid State
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault
  • Terminal Connection: Lug
  • Wire Size: 2 x AWG 2/0...500 kcmil aluminium/copper
  • Connection: Feed-Thru
  • Dimensions: 13.4 in (340 mm) x 5.5 in (140 mm) x 4.3 in (110 mm) (Height x Width x Depth)
  • Weight: 15 lb
  • AIC rating: 65kA@480V
  • 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: Mexico


Product Identification
  • UPC: 785901057079
  • GTIN: 00785901057079