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NEF434100

Federal Pacific
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Federal Pacific NEF434100 is a 3-pole, 100-amp molded case circuit breaker designed for overcurrent protection in industrial and commercial power distribution systems. It operates at 480V AC and utilizes a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions to protect against sustained overloads and short circuits. The unit weighs 3 lb and features a bolt-on connection for secure mounting within a panelboard or switchboard. This breaker is built to meet industry standards for reliable performance in demanding electrical environments. It is commonly applied in manufacturing facilities, commercial buildings, and other three-phase electrical systems requiring robust circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Federal Pacific
  • Family: NEF Series
  • Model: NEF434100
  • Poles: 3
  • Current Rating: 100A
  • Voltage Rating: 480V
  • Phase: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Weight: 3 lb
  • Interrupt Rating: 25kA
  • Series/Frame: NEF


Federal Pacific NEF434100 - Molded Case Circuit Breaker 100A 480V 3-Pole