OS-102: OVER/UNDER SPEED MONITORING RELAY

The OS-102 is an Engine Overspeed Relay Module widely used with engine instrumentation and control panels such as those supplied with engines supplied by MAN Diesel & Turbo.

The LSS (Low Speed Setting) is used to set the engine’s idle RPM and the factory default is around 500 RPM (user adjustable). The OSS (Over Speed Setting) is used to set the engine’s overspeed RPM and the factory default is around 2700 RPM (user adjustable).