The Federal Pacific Electric NB3100 U circuit breaker is a 100A, three-pole, 240V protective device designed for use in compatible Federal Pacific panels. It provides overcurrent protection by interrupting current during overloads or short circuits on 240V circuits. The NB3100 U designation identifies this specific model within the NB3100 family, ensuring compatibility with panels that accept NB3100 U 3-pole, 240V breakers.
