DEHN
DEHNventil Type 1,2 & 3 Combined Lightning Current and Surge Arresters
The DEHNventil range provides combined Type 1, Type 2 and Type 3 lightning current and surge protection for low-voltage power supply systems exposed to extreme lightning and fault current conditions.
Designed for installation at the service entrance, DEHNventil arresters safely discharge direct lightning currents while limiting residual voltages to protect downstream equipment. They are widely specified for critical infrastructure, industrial facilities, and high-risk installations across Ireland, where maximum system availability and safety are non-negotiable.
- Combined Type 1, 2 & 3 protection Complete lightning and surge protection in a single coordinated device.
- Very high lightning current discharge capacity Designed for installations exposed to direct lightning strikes.
- Outstanding follow current limitation Prevents nuisance tripping and maintains system availability.
- Suitable for high prospective short-circuit currents Ideal for service entrances and demanding network conditions.
Selected variant
Selected variant
Specifications
| 3549_Voltage protection level (kV) | ≤ 1.5 |
|---|---|
| Approvals | ATEX, IECEx, Kema, UL, VDE |
| Country of origin | DE |
| Cross section single wire from | 1.5 |
| Cross section single wire to | 35 |
| Earthing arrangement | TN-S |
| Frequenze | 50 / 60 Hz |
| Height | 65 |
| Length | 90 |
| Max operating voltage (L-N) | 255 |
|---|---|
| Nominal discharge current | 50 |
| Nominal Voltage | 230 / 400 V |
| Remote signalling contact | Yes |
| Short circuit strength | 50 kArms |
| Tariff code | 85363090 |
| Weight | 0.525 |
| Width | 72 |
Product description
The DEHNventil range provides combined Type 1, Type 2 and Type 3 lightning current and surge protection for low-voltage power supply systems exposed to extreme lightning and fault current conditions.
Designed for installation at the service entrance, DEHNventil arresters safely discharge direct lightning currents while limiting residual voltages to protect downstream equipment. They are widely specified for critical infrastructure, industrial facilities, and high-risk installations across Ireland, where maximum system availability and safety are non-negotiable.
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