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Square D RLA36120CU44A - Molded Case Breaker 1200A 600V 3-Pole

Square D
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The Square D RLA36120CU44A is a 3-pole molded case circuit breaker designed for primary overcurrent and ground fault protection in industrial power distribution systems. It is rated for 600V AC and 1200A continuous current, with a 100kA interrupting capacity at 480V AC, and utilizes solid-state LSIG (Long-Time, Short-Time, Instantaneous and Ground Fault) trip functions for precise coordination. This unit features an I-Line style plug-in connection, measures 16.24 in (412.50 mm) x 16.54 in (420.12 mm) x 14.49 in (368.05 mm) (H x W x D), and weighs 0.052 lb, accepting wire sizes from 4 x AWG 3/0 to 600 kcmil aluminum/copper or 4 x AWG 3/0 to 500 kcmil copper. It complies with UL, CSA, NEMA, NMX J-266, and IEC 60947-2 standards, with certification from UL, CSA, and NOM, and is manufactured in the United States by Schneider Electric. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers within commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State
  • Voltage Rating: 600V AC
  • Current Rating: 1200A
  • Dimensions: 16.24 in (412.50 mm) x 16.54 in (420.12 mm) x 14.49 in (368.05 mm) (Height x Width x Depth)
  • Standards: UL, CSA, NEMA, NMX J-266, IEC 60947-2
  • Applications: Main or feeder protection in switchboards, panelboards, motor control centers
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • AIC Rating: 100kA@480V
  • Phase: 3
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous and Ground Fault)
  • 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
  • Country of Origin: United States
  • Weight: 0.052 lb


Product Identification
  • UPC: 785901234111