IEC 60132-4:1966 Rotary wafer switches (low current rating). Part 4 : Rotary wafer switches with central mounting: maximum 12 positions: maximum diameter 40 mm
1966IEC 60132-4:1966 Rotary wafer switches (low current rating). Part 4 : Rotary wafer switches with central mounting: maximum 12 positions: maximum diameter 40 mm