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Square D MJL36400 - PowerPact M 400A 3-Pole (600V Solid State)

Square D
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Square D MJL36400 Circuit Breaker - PowerPact M 400A 3-Pole (600V Solid State) The Square D MJL36400 is a PowerPact M series molded case circuit breaker from Schneider Electric designed for overcurrent protection in industrial power distribution systems. This 3-pole breaker is rated for 400 amps at 600 volts AC with a 65kA interrupting capacity at 480V, utilizing solid state LI (Long-Time and Instantaneous) trip functions for precise protection. The unit measures 12.86 inches in height, 8.27 inches in width, and 8.05 inches in depth, weighs 28.85 lb, and features a box lug terminal connection with a lug in/lug out configuration, accepting wire sizes from 3/0 AWG to 500 MCM (3 x AWG 3/0 to 3 x 500 kcmil aluminum/copper). It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, and is certified by UL, CSA, and NOM. Typical applications include main lug panelboard terminations in equipment gear panels, with an operating temperature range of -13°F to 158°F (-25°C to 70°C) and ABC phase connection.

Key Features & Specifications
  • Type: MJL
  • Family: Powerpact
  • Frame Size: 800A/M
  • Current Rating: 400A
  • Voltage Rating: 600V
  • Poles: 3
  • Phase: 3
  • Interrupt Rating: 65kA at 480V
  • Protection: Solid State
  • Functions: LI - Long-Time and Instantaneous
  • Terminal Connection: Box Lug
  • Connection: Lug In/Lug Out
  • Wire Size: 3 x AWG 3/0...3 x 500 kcmil aluminium/copper
  • Min. Wire Size: 3/0 AWG
  • Max. Wire Size: 500 MCM
  • Panel Type: Equipment Gear
  • Phase Connection: ABC
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Dimensions: 12.86 in (326.64 mm) x 8.27 in (210.06 mm) x 8.05 in (204.47 mm) (Height x Width x Depth)
  • Weight: 28.85 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Country of Origin: Mexico
  • Breaker Type: Standard


Product Identification
  • UPC: 785901701828
  • GTIN: 00785901701828