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Square D RJA36120CU44A - Molded Case Circuit Breaker 1200A 600V 3P

Square D
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Square D RJA36120CU44A is a molded case circuit breaker designed for providing comprehensive LSIG (Long-Time, Short-Time, Instantaneous, and Ground Fault) protection in three-phase electrical systems. It features a 1200A current rating and a 600V voltage rating, housed within a robust R-frame construction measuring 412.5 mm H x 420.12 mm W x 368.05 mm D and weighing 65.001 lb. The breaker is engineered to UL, CSA, NEMA, NMX J-266, and IEC 60947-2 standards, utilizing solid-state protection technology for reliable operation. Its I-Line style plug-in connection facilitates installation in industrial power distribution and control applications, supporting wire sizes up to 600 kcmil for aluminum or 500 kcmil for copper conductors, with an interrupting capacity of 65kA at 480V.

Key Features & Specifications
  • Type: RJA Molded Case Circuit Breaker with Solid State LSIG Protection
  • Voltage Rating: 600V AC
  • Current Rating: 1200A
  • Dimensions: 412.5 mm H x 420.12 mm W x 368.05 mm D (16.24 in x 16.54 in x 14.49 in)
  • Standards: UL, CSA, NEMA, NMX J-266, IEC 60947-2
  • Applications: Industrial Power Distribution
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: Solid State
  • Functions: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Frame Size: R Frame
  • Wire Size: 4 x AWG 3/0 to 600 kcmil (Aluminum/Copper); 4 x AWG 3/0 to 500 kcmil (Copper)
  • Certification: UL, CSA, NOM
  • Family: Powerpact
  • Weight: 65.001 lb
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901566526
  • GTIN: 00785901566526