IEC 60132-6:1974 Rotary wafer switches (low current rating). Part 6 : Rotary wafer switches with printed wafers; maximum 12 positions; maximum mounting dimension 45 mm
1974IEC 60132-6:1974 Rotary wafer switches (low current rating). Part 6 : Rotary wafer switches with printed wafers; maximum 12 positions; maximum mounting dimension 45 mm