... [dot] com, sikeqd [at] 126 [dot] com. Thank you.IntroductionLW30 series rotary switches applied to circuits of AC 50Hz with working voltave ... and ventilating equipments,and AC motors with small power..LW30 series rotary switches have six current ratings:20A,25A,32A,40A,63A ... is a good choice For DC circuits.LW 30 has additional contact which enable us to install the contact separetely.LW30 series rotary ...