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Square D LJA36400CU33X - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D LJA36400CU33X is a molded case circuit breaker designed for providing solid-state protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact L-frame measuring 340 mm H x 140 mm W x 110 mm D and weighing 18.63 lb. The breaker is constructed for I-Line style plug-in connection with lug terminals and complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards. Its 100% rated, 3-pole design with LSI (Long-Time, Short-Time, Instantaneous) protection functions and a 65kA interrupting capacity at 480V makes it suitable for protecting feeders and mains in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid-State Protection, I-Line Plug-In
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 13.4 in H x 5.5 in W x 4.3 in D (340 mm x 140 mm x 110 mm)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Feeder & Main Protection
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Poles: 3
  • Protection: Solid State
  • Functions: LSI (Long-Time, Short-Time, Instantaneous)
  • Frame Size: L Frame
  • Breaker Type: 100% Rated
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Aluminium/Copper)
  • Certification: UL, CSA, NOM
  • Terminal Connection: I-Line, Lug (AL600LS52K3)
  • Family: Powerpact
  • Item Subcategory: Molded Case
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901093466
  • GTIN: 00785901093466