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Cutler Hammer HFB3125 - Molded Case Circuit Breaker 125A 600V 3P

Cutler Hammer
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Cutler Hammer HFB3125 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 125A continuous current rating and a 600V AC voltage rating, with a robust thermal-magnetic trip unit offering both long-time and instantaneous (LI) protection functions. The breaker is constructed as a three-pole, bolt-on unit within the compact MARK 75 frame, weighing 11 lb, and is UL Listed for safety compliance. Its 25kA interrupting rating at 480V AC makes it suitable for safeguarding feeders and branch circuits in commercial and industrial panels against short circuits and overloads.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 25kA @ 480V AC
  • Functions: LI (Long-Time and Instantaneous)
  • Frame: MARK 75
  • Connection: Bolt-On
  • Certification: UL Listed
  • Weight: 11 lb