Electrical Circuit Diagram Keys

 3 wire PNP proximity switch with plug connection

Horn

 

 NO Pushbutton

 Circuit breaker

 

 

 

 

 Light barrier receiver

 Pressure switch

 

 

 

 Coil, general

 

 Light barrier transmitter

 Rectifier/Power supply

 General indicator light

 NC Contact

 Solenoid valve

 General single-pole fuse

 NC Footswitch

 

 Terminal

 

 

 Heating element

 

 

 NO Contact

 

 

Transformer