kht的精選

熱(過載)繼電器:KH【Therml(over-load)relay】時間繼電器(延時或無繼電器):KT【Time-delayall-or-nothingrelay(timedelayrelay)】中間繼電器:KM(常用符號，非國標)【(intermediaterelay)】電流繼電器:KC【(currentrela...