Air Compressor Automatic On-Off Connection Wiring Diagram Guide

air compressor auto start stop wiring:

An automatic on-off connection to the compressor can be provided to enable the compressor to automatically switch on and off depending on the pressure requirement of the system. A pressure switch is used to keep track of pressure in the tank and shuts or opens the circuit to invoke or halt the compressor motor. Wiring is usually done with the motor starter, contactor, overload relay, and pressure switch. When pressure is below the minimum setpoint, the pressure switch activates the starter, and the motor is turned on. When the pressure reaches the maximum value setpoint, the switch de-energizes the motor, and the compressor is stopped. The motor and the wiring are shielded by protective devices such as MCB/fuse and overload relay. Proper wiring leads to a stable operation, eliminates the effects of overpressurization, protects equipment, and minimizes energy usage. This arrangement is usually adopted in industrial and workshop compressors as a way of efficiency and safety. Testing of the compressor is done to see that it is starting and stopping properly and that all the protection devices are functioning properly.