Westinghouse S-1809803 Overcurrent Trip Device

The Westinghouse S-1809803 is an 800 Amp power circuit breaker with an overcurrent tripping device (AH), designed for industrial switchgear applications. This industrial-duty breaker provides overload and fault-current protection and is commonly installed in industrial substations, switchgear lineups, and motor control centers within power distribution systems. It delivers overcurrent and short‑circuit interruption, mounts in switchgear breaker installations, and is compatible with industrial switchgear and distribution assemblies (reference number 388530). Common replacements include Eaton Magnum DS Power Breaker, Siemens WL Power Circuit Breaker, and Square D Masterpact Circuit Breaker.