Eaton FD3100 is a three-pole, 100-amp FD-series circuit breaker (model FD3100), tracing its heritage to Cutler-Hammer and Westinghouse and now manufactured under the Eaton banner. The FD3100 provides overcurrent protection for three-conductor circuits at a 100 A rating and is part of the FD family of breakers. Its three-pole configuration indicates simultaneous interruption across all three poles, matching the requirements of 3‑phase electrical installations. Use in compatible FD-series panels and enclosures where a 100-amp, three-pole protective device is specified.
