Used in the telecom, maximum operating voltage is AC320, nominal discharge current is 20kA, max. discharge current is 50kA.
| Max.AC operating voltage | 320 Vac |
| Temporary Over Voltage (TOV)characteristic-5 sec. | 335 Vac withstand |
| Temporary Over Voltage (TOV)characteristic-120 mn | 440 Vac withstand |
| Nominal discharge current | 20 kA |
| Max.discharge current | 50 kA |
| Impulse current by pole | 12.5 kA |
| Specific energy by pole | 40 kJ/ohm |
| Withstand on Combination waveform | 6kV |
| Protection level | 1.5 kV |
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