... Service 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, ... used to change position of ammeter and voltmeter to control the direction of motor and other circuits.4. The ... . Voltmeter rotary switch: TR-ST-RS-0-RN-SN-TN, BR-YB-RY-OFF-RN-YN-BNc. ON-OFF rotary switchd. ...