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Square D RJF36100U31A - Molded Case Circuit Breaker 1000A 600V 3-Pole

Square D
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Square D RJF36100U31A is a PowerPact R-frame molded case circuit breaker designed for industrial power distribution and equipment protection. It is rated for 1000A at 600VAC with a 3-pole configuration and features a MicroLogic interchangeable standard trip unit providing LI (Long-Time and Instantaneous) solid-state protection. The unit measures 16.24 in (412.50 mm) in height, 16.54 in (420.12 mm) in width, and 14.49 in (368.05 mm) in depth, weighing 52.001 lb, with a bolt-on connection and support for wire sizes from AWG 3/0 to 750 kcmil aluminum/copper. It complies with UL, CSA, NEMA, NMX J-266, and IEC 60947-2 standards, with certifications from UL, CSA, and NOM, and an AIC rating of 65kA at 480V. This breaker is suited for high-current industrial applications requiring reliable overcurrent protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case
  • Family: Powerpact
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Current Rating: 1000A
  • Poles: 3
  • Phase: 3
  • Protection: Solid State
  • Connection: Bolt-On
  • Wire Size: AWG 3/0...750 kcmil aluminium/copper
  • Interrupt Rating: 18 kA @ 600VAC
  • AIC rating: 65kA@480V
  • 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)
  • Weight: 52.001 lb
  • Standards: UL, CSA, NEMA, NMX J-266, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Mounting Type: Panel mount (PowerPact R-frame)
  • Trip Unit: MicroLogic interchangeable standard trip


Product Identification
  • UPC: 78590146561
  • GTIN: 00785901465614