380v air compressor physical wiring diagram

Wiring is as follows:

1. The three live wires of the air switch are respectively connected to the three input ends of the AC contactor of the air compressor, and the three output ends are respectively connected to the motor.

2. Any live wire is connected to the coil of a 380V AC contactor, the other end of the coil is connected to the normally closed contact of the thermal relay, the other end of the normally closed contact is connected to the normally closed contact of the air pressure switch, and the other end of the normally closed contact is connected to another live wire (if the coil of the AC contactor is powered by 220V, this wire is not connected to the live wire, but directly to the neutral wire)