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