南京钮子开关,无锡钮子开关,钮子开关价格​,宏聚电子有限公司供Rating：3A 120VAC OR 28VDC ContactResistance：20mΩ (Max) Insulation Resistance：1000MΩDielectric Strength：1500VAC For 1 Minute Temperature Range：-30℃～+85℃Safety Approal：UL CUL CQC ROHSElectrical Life:30000Make-and-break-Cycles At Full Load