... CE,CCC,ROHS,UL,TUV.... LW126 series universal switch is mainly used in electric circuit of AC50Hz ... .It is for controlling manually non-frequent switch-on and off circuit,additionally,it also ... every rotary switch such as circuit control switch,test equipment's switch,motor-control and master control switch,etc. ... 3)Position&Auto-return style electrical universal rotary switch/changeover switch LW126