... 4.CE approval OFF-ON switch, Rotary Switch/Cam Switch,Selector Switch 16A, IP20 standard, finger protectionOFF-ON Switch, Rotary Switch/Cam Switch,Selector Switch 16A, IP20 standard, ... position of ammeter and voltmeter to control the direction of motor and other circuits.4. The switches have 2, 3, 4, ... stage with many different panels and buttons:a. Ammeter rotary switch: OFF-R-Y-B, OFF-R-S-Tb. ...