M-Series Miniature Speed Switches are complete rotation monitoring systems ideal for detecting unwanted slow down or stoppage of process equipment. The M100 has a relay setpoint range of between 10RPM and 100RPM. The M5000 has a relay setpoint range of between 100RPM and 5000RPM. This range is where the relay can be set to trip - both switches have the same operating range. These systems are commonly used to monitor drive trains, power driven components, crushers, exhaust fans, screw conveyors, or tail pulleys on belt conveyors and elevators. In the event of rotational failure, such as broken drives, belt slippage, product overloads, clogs and jams, the SPDT 5-Amp control relay can be used to provide equipment shut down and/or alarm. This detection of a developing problem enables proactive maintenance to prevent equipment damage, product waste, and excessive down time. Electro-Sensors rugged and reliable switches are the simple way to prevent machine damage, product waste, and costly downtime. Features: