... Great quality and competitive price 2.Short circuit alarm 3. Earth alarm 4.Easy to install We Xiamen Leelen High Voltage ... switchgear conponents,such as voltage indicator,heater,short circuit and earth fault indicator,blocking magnet,Led light,voltage sensor,temperature and ... 30A,40A,50A,60A+-1Temperature range : -15 to +60Humidity: <=95%Earth lead length : 3.5mConduct optical fiber length 10m(MAX)Power ...