... conponents,such as voltage indicator,heater,short circuit and earth fault indicator,blocking magnet,Led light, ... level system must trip off within the setting time when a short circuit or earth fault occurs ... fault section timely. It will reduce the working time and minimize the region of power cut. Function1. ... supply: lithium battery 3.6V/2.45AhAuto-reset time : 7s,1hrs,2hrs,4hrs Output relay : 120 ...