The installation of Type 1 or Type 1+2 Surge Arresters is compulsory whenever there is a lightning rod.
They are tested and rated according to the standardised current wave of 10/350 μs.
Impulse discharge current Iimp:
- 12.5 kA for iPRF1 12.5r is suitable for buildings with protection levels III and IV
- 25 kA for PRD1 25r and 35 kA for PRD1 Master are suitable for buildings with protection levels I and II
More information about the risks to be avoided at end of life of the SPDs
These Surge Arresters are available either as monobloc or with pluggable cartridges.
These ranges cover all the different earthing system: multiple-pole or single-pole devices to be assembled.
They come with ouput contacts for remote transfer of end-of-life information (for Acti 9 Smartlink or other input/output devices).
- iPRF1 12.5r and PRD1 25r are also Type 2 rated (8/20 µs) to protect the electrical equipment by finely clipping the voltage surge
- They are suitable for 230/400 V 50/60 Hz networks, with earthing system TT, TN-S, TN-C
- PRD1 Master is also suitable for 440 V IT earthing system.
These two SPD Type 1 ranges provide:
- Powerful Surge Protection for installations and buildings with high lightning strike risk
- Ensure the continuity of service of your installation
- PRD1 Surge Arresters are fitted with easy-to-replace pluggable cartridges
- Beware the lightning rod is not sufficient as a protection, Type 1 Surge Protection Devices contribute to the safety of your equipments
- The IEC/EN 62305-2 specifies the use of Type 1 or Type 1+2 Surge Protection Devices in commercial and industrial buildings protected by a lightning conductor or a lightning rod
- Surge Protection Devices are recommended when there is higher risk of direct lightning strikes.