Default product image

Square D LJF36400U31X - Molded Case Breaker 400A 600V 3P

Square D
Price
Save $1,610.45
/
Condition
  • In stock, ready to ship
  • Backordered, shipping soon
Call for Price
Square D LJF36400U31X is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a solid-state protection system with long-time and instantaneous (LI) trip functions, rated for 400A at 600V AC with an interrupting capacity of 65kA at 480V. The breaker is constructed with a robust 'L' frame, measures 340 mm H x 140 mm W x 110 mm D, and utilizes a three-pole, bolt-on connection with busbar terminals compatible with wire sizes from 2/0 AWG to 500 kcmil for copper or aluminum conductors. It complies with key industry standards including UL, CSA, NEMA, and IEC 60947-2, and is rated for operation in ambient temperatures from -2°C to 70°C. This breaker is typically applied in industrial panelboards, switchboards, and other electrical equipment requiring high-performance circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, Long-Time & Instantaneous (LI) Trip
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 340 mm H x 140 mm W x 110 mm D (13.4 in x 5.5 in x 4.3 in)
  • Weight: 15 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Solid State
  • Functions: Long-Time, Instantaneous
  • Frame Size: L
  • Terminal Connection: Busbar Connection
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Cu/Al)
  • Temp Rating: -2°C to 70°C (28°F to 158°F)
  • Certification: UL, CSA, NOM
  • MCM Size: Min: 2/0 AWG, Max: 500 kcmil
  • Family: Powerpact
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901072720
  • GTIN: 00785901072720