Popular Eaton / Cutler-Hammer FB3100 – 100A 3 Pole Molded Case Circuit Breaker

Operating as a critical safety component, this 100-amp molded case circuit breaker safeguards commercial wiring against overloads and short circuits. The three-pole unit relies on fixed thermal and magnetic elements to maintain consistent electrical protection. Installation requires bolting the breaker into compatible Westinghouse or Eaton Pow-R-Line enclosures. It acts as an exact functional cross-reference for FDB3100 breakers. Capable of interrupting 14kA at 480VAC, it meets UL 489 standards.