NALD series T1 surge protector has high lightning discharge capacity, single. The maximum shock current of the module can reach 50 kA (10 / 350 μ s), which can prevent direct lightning strikes. The power supply of the equipment system in areas with higher risk of lightning strike. Stage surge protection, which can be combined in single-phase / three-phase power supply lines. High efficiency 1 energy saving 1 precision 1 low carbon.
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Model |
NALD-A12.5 |
NALD-A15 |
NALD-A25 |
NALD-A50 |
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SPD port |
One port |
One port |
One port |
One port |
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SPD category |
Voltage limiting type/voltage switch type |
Voltage limiting type/voltage switch type |
Voltage switch type |
Voltage switch type |
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Test category |
Class 1 test |
Class 1 test |
Class 1 test |
Class 1 test |
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Rated voltage Un |
220VAC50~60Hz |
220VAC50~60Hz |
220VAC50~60Hz |
220VAC50~60Hz |
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Maximum continuous operating voltage Uc (AC) |
275V、320V、385V、420V、440V |
275V、320V、385V、420V、440V |
275V、320V、385V、420V、440V |
275V、320V、385V、420V、440V |
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Insulation resistance |
>100MΩ |
>100MΩ |
>100MΩ |
>100MΩ |
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Impulse discharge current light (10/350μs) |
12.5kA |
15kA |
25kA |
50kA |
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Protection level Up (1.2/50μs) |
2.2kV |
2.2kV |
2.5kV |
2.8kV |
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Response timetA |
≤100ns |
≤100ns |
≤100ns |
≤100ns |
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Size mm |
144×90×66 |
144×90×66 |
144×90×66 |
144×90×66 |
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Installation wire cross-sectional areamm² |
6~25 |
6~25 |
6~25 |
6~25 |
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Installation |
35mm standard rail (EN50022/DIN46277-3) |
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Working environment temperature ℃ |
40~85 |
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Shell material |
Plastic, compliant with UL94 V-0 |
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Protection level |
IP20 |
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Quick respond! Instant lightning protection! Fault early warning
Large discharge energy, no leakage current, no continuous flow, modular installation, high safety factor.
Long service life, strong environmental resistance, voltage protection level is less than 2500V. The NALD series primary surge protector is designed according to the 1EC and GB standards. Apply to power supply system of the first level of surge protection, the product is the standard 35mm guide rail type way to install.
NALD series T1 surge protector has high lightning discharge capacity, single. The maximum shock current of the module can reach 50 kA (10 / 350 μ s), which can prevent direct lightning strikes. The power supply of the equipment system in areas with higher risk of lightning strike. Stage surge protection, which can be combined in single-phase / three-phase power supply lines. High efficiency 1 energy saving 1 precision 1 low carbon
-Lightning protection level (T1)
Remote signal or communication remote alarm
Number of poles: 1P, 2P, 3P. 4P
Nominal discharge current
Maximum discharge current