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Eaton Cutler-Hammer HFB3100 - Molded Case Circuit Breaker 100A 600V 3P

Cutler Hammer
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Eaton Cutler-Hammer HFB3100 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 100A continuous current rating and a 600V AC voltage rating, with a robust thermal-magnetic trip unit providing 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 engineered to interrupt faults with an interrupting capacity of 25kA at 480V AC. It is built to meet stringent industry standards for safety and performance in demanding environments, making it suitable for use in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: MARK 75 Frame Size
  • Standards: Compliant with applicable UL and IEC standards
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers
  • Phase: 3
  • AIC Rating: 25kA @ 480V AC
  • Poles: 3
  • Protection: Thermal-Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: MARK 75
  • Trip Type: Thermal-Magnetic
  • Connection: Bolt-On
  • Weight: 11 lb