... temperature: - 20 ~ + 100 degree C. 2.Vibration frequency:50-60Hz Din Rail Mounted Surge Absorber1. Working principle HK lightning surge protection deviceIt ... .KeywordsLightning arrester,voltage Suppressor,Surge Voltage Absorber,Polymer Lightning Arrester,High-voltage Lightning Arrester,Surge Arrester,Surge Protector,Surge protective Device ...