1.Rate voltage:12kv 2.OEM orders are welcome 3.Quick delivery 4.Steady function The main technical index: JN15-12/40 Indoor high voltage AC Earthing Switch ,high voltage earthing switch,indoor earthing switch Item Unit Data Rated voltage kv12Rated short-time withstand current kA40Rated short-circurt durature s4Rated short-circurt making current kA100Rated peak withstand current kA100 Rated ...