... CE,CCC,ISO9001,etc 3) timely delivery Power switch OverviewZFK composite switch is a new generation of AC contactor .1) using microcomputor ... grid without the impact of their loss is very low , the corresponding time is less than 20ms m 3) particularly ... surrounding evenronment without corrosive gas , no conductive dust , there is no flammable and explosive materials5 , the hole voltage range: rated ...