power supply lightning protection module
Electric surge protector of low-voltage distribution system is designed according to IEC standard.，having a progressive deterioration function. The discharge channels in the module are connected in parallel and work simultaneously. When any of the channels is damaged, other channels continue to work..Through timely indication of the performance of the product on the module through the flow of deterioration, to facilitate the timely replacement, standard modular installation, integrated lightning protection module.It is with great lightning current discharge capacity, it is suitable for the lightning protection of the building's main power system. The installation of 35mm standard rails is extremely convenient for maintenance. This grade of lightning arrester is connected in parallel to the line, and there is no limit to the power of the downstream equipment.
|
Model |
HD-DMT2 |
|
Nominal working voltage Un |
380V |
|
Maximum continuous working voltage Uc |
385V |
|
Nominal discharge current In（8/20μs） |
40KA |
|
Maximum discharging current Imax（8/20μs） |
80KA |
|
Voltage protection level Up |
1.8KV |
|
External dimension |
144/72×90×64mm |
|
Response time Ta |
≤25ns |
|
Operating temperature range Tup |
-40℃至+70℃ |
|
Section of minimum installed conductor |
6mm2 multi-folded wire
|
|
Protection grade |
IP20 |
|
Sheathing material |
Flame retardent thermoplastic material
|
|
Mode of connection |
Parallel connection |
|
Protection mode |
4+0/3+1/1+1/2+0 |
Ground the null line repeatedly when Long-distance overhead incoming lines enter buildings.
Plug the power phase line (L) and null line (N）into corresponding connector of the electric surge protector and make sure it's firm and reliable. Connect the ground terminal of arrester with the ground lead of lightning protection well (recommended earth resistance ≤4Ω).
Suggested specification of the lead wire: no less than 6mm2, short and straight.
