... about switchgear conponents,such as voltage indicator,heater,short circuit and earth fault indicator,blocking magnet,Led light,voltage ... time and minimize the region of power cut. Function1. Short circuit alarming2. Earthing alarming3. Auto reset 4. Test / Reset ... Low voltage of the battery alarming indicationTechnical data: Short circuit alarming current: 150A to 2000AEarthing alarming current:10A ,20 ...