IEC 60132-7:1981 Rotary wafer switches (low current rating). Part 7 : Rotary wafer switches with central mounting; maximum 12 positions and maximum diameter 20 mm
1981IEC 60132-7:1981 Rotary wafer switches (low current rating). Part 7 : Rotary wafer switches with central mounting; maximum 12 positions and maximum diameter 20 mm