... 5) Application:Widely used in automatical control of power system,factory power distribution,building automation,eg.,single/three phase ... , Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor ... KNE KSC box, Rotary Encoder and computer integrated control system etc. They are widely used in industrial control and ...