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Eaton Cutler-Hammer FB31550MRL - Molded Case Circuit Breaker, 100A 3P

Cutler Hammer
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Eaton Cutler-Hammer FB31550MRL is a molded case circuit breaker designed for providing instantaneous magnetic-only protection against short-circuit faults in three-phase industrial power distribution systems. It features a 100A continuous current rating and a 600V AC voltage rating, with a 14kA interrupting capacity at 480V AC to safely clear high-level faults. This three-pole, feed-thru connection breaker is part of the AB DE-ION family and is constructed with a durable molded case, weighing 11 lb for robust performance in demanding environments. It is engineered to meet relevant industry standards for circuit protection devices. Typical applications include use as a main or branch device in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Magnetic-Only Protection (I - Instantaneous)
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • AIC Rating: 14kA @ 480V AC
  • Protection Function: Instantaneous Trip (Magnetic)
  • Family: AB DE-ION
  • Frame Type: FB
  • Weight: 11 lb