short circuit&earth fault indicator widely used in ABB/SIEMENS switchgears: 1. Short circuit alarming current: 100A to 1000A time delay 40ms 2. Earthing alarming current: 10A, 20A,30A,40A,60A±10% time delay 40ms 3. Temperature range : -25 to +70 4. Humidty range: â?¦95% 5. Earth lead length : 4m optional 6. Conduct optical fiber length 3.5m optional 7. Power supply: lithium battery 3.6V/2.45Ah 8. Auto-reset time : 7s,2hrs,4hrs,8hrs 9. Output relay : 125 V AC 1A, 30V DC 2A 10.Main controller dimension : 95*50*80mm 11.Cutting hole size : 91*44 mm 12.Protection class : Main Controller :IP40, Sensor:IP65