... Lightning Arrester,Surge Arrester,Surge Protector,Surge protective Device,Lightning Protector,Polymer Arrester,Thunder Protection,Power surge Protector,Surge Suppressor,Overvoltage Protector,Thunder Protection,Electrical Control,System Protector, Direct Strick ... be applied. 5.Environmental temperature: - 20 ~ + 100 degree C. Vibration frequency:50-60Hz Phase:three phase Power type:AC 6.No ...