Surge Protecitve Device,Surge Protector,Surge Arrester,Lightning Protector,SPD,Lihgtning Arrester,Protector Surge 1. Working voltage: 255V/275V/320V/385V/420V/440V/520V2. Normal discharge current (8/20us) In: 15kA/20kA3. Max. discharge current (8/20us) Imax: 40kA/65kA4. Protection class: C,B5. Composite type: 1P, 1P+N, 1+NPE, 2P+N, 3P+N, 3P+NPE6. Voltage protection level (Up): < 2.2kV/2.2kV7. ...