2012 New LW31B Rotary Switch 1,20-175A current rotary switch 2,110-690V voltage rotary switch 3,CE, ROHS certification Brand ... Description 2012 New LW31B Rotary Switch 1,20-175A current rotary switch 2,110-690V voltage rotary switch 3,CE, ROHS certification ... series switches has Larger insulation distance,quick disconnectinvg response.And is a good choice For DC circuits.LW 30 has additional ...