Split Core Current Switch/ Command Relay for VFD Applications, 3.5-135 Amp Contimuous Amperage, Trip Setpoint: Automatic, Sensor Supply Voltage: Induced from Monitored Conductor, 0 Second - 2 Minute Off Delay, -15/60 Degree Celsius Temperature Range, 0-95 % RH Non Condensing Humidity Range, 24 Vac/Vdc Relay Coil