... alarm for output overvoltage, over current, overheat, short circuit,8.Efficiency reach above 90% ,widely applicable load,for ... fuse switch, without output fuse switch, the electronic circuit to detect over-voltage express .Over voltage, over ... current, over temperature, over load, short circuit, and automatic alarmInsulation reactanceAbove 500Vdc 20MΩPressure endurance insulation1800Vac ...