... mechanism life time.it can matched with earth GW4-72.5 disconnectoroutdoor high voltage disconnect switch is used to openand ... ,1250,1600,20003Rated frequencyHz50,604Rated peak withstand currentkA25,31.5,405Rated short-time withstand times46Mechanical steady operating times ... withstand voltage(peak value)41075011Mechanical lifeTime2000 GW4-72.5 66KV High voltage Outdoor disconnect switch isolator