| Certified Under, Tested to | IEC - 61643 - 1 | IEC - 61643 - 1 | IEC - 61643 - 1 | IEC - 61643 - 1 |
| Class | Class II | Class II | Class II | Class II |
| Max Permitted Operating Voltage | | 335 VRMS | 335 VRMS | 255 VRMS |
| Nominal Discharge Current (8/20)ln | Nominal Discharge Current (8/20)ln | 15kA | 15kA | 20kA |
| Max Discharge Current (8/20)lmax | Max Discharge Current (8/20)lmax | 20kA | 30kA | 40kA |
| Protection level UP | Protection level UP | < 600V | 1.2kV | 1000V |
| Response Time | Response Time | < 5ns | 25ns | 100ns |
| Temperature range | Temperature range | | | |
| Cross - Section of connection wire | Cross - Section of connection wire | 25mm² Multistrand or 35mm² Single Strand | 25MN8 Multistrand | 25MN8 Multistrand |
| Mounting | Mounting | 35mm² DIN Rail | 35MO9 DIN Rail | 35MP9 DIN Rail |
| Degree of protection | Degree of protection | IP 20 | IP 20 | IP 20 |
| Status Indicator | Status Indicator | Power on green Failure RED mechanical flag | | |
| Remote Alarm Indicator | | Change over relay | Change over relay | Change over relay |
