home surge protection/SPDsurge ,Surge Protecitve Device,Surge Protector,Surge Arrester,Surge Arrestor,Lightning Protector 1. Working voltage: 255V/275V/320V/385V/420V/440V/520V2. Normal discharge current ... , 1P+N, 1+NPE, 2P+N, 3P+N, 3P+NPE6. Voltage protection level (Up): < 2.0kV/2.2kV7. Response time: 25ns8 ... /60Hz.10. According to IEC61643-1, GB18802.111. CE Mark Surge Arrester spd