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Square D RKF36100U31A - Powerpact 1000A 3-Pole Circuit Breaker

Square D
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The Square D RKF36100U31A is a Powerpact molded case circuit breaker designed for primary overcurrent protection in industrial power distribution systems. It features a solid-state trip unit with LI (Long-Time and Instantaneous) protection functions, rated for 600V AC and 1000A continuous current, with a high interrupting capacity of 65kA at 480V. This three-pole, bolt-on breaker weighs 37 lb and is constructed for robust, reliable operation in demanding environments. It complies with industry standards for molded case circuit breakers and is typically applied in commercial and industrial switchboards, panelboards, and motor control centers requiring precise, adjustable protection.

Key Features & Specifications
  • Type: Powerpact Molded Case Circuit Breaker, Solid State Trip
  • Voltage Rating: 600V AC
  • Current Rating: 1000A
  • Poles: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 65kA@480V
  • Phase: 3
  • Weight: 37 lb
  • Family: Powerpact
  • Functions: LI - Long-Time and Instantaneous


Product Identification
  • Manufacturer: Square D
  • Model: RKF36100U31A
  • Item Subcategory: Molded Case