DC Power SPD
DC surge protective device, also called dc lightning arrestoror dc surge suppressor, is designed for the protection of DC power circuit from the damage of lightning overvoltage, induce over-voltage, transient operation, and resonance (Less than 100μs) overvoltage. Besides low voltage 12v, 24vdc surge suppressor, high voltage dc spd 600v, spd 1000vdcare also available. For the price or other information of spd for power supply, please feel free to contact us.
Application of DC Surge Protective Device
Surge protection equipment is widely used in communication equipment, DC power supply systems.
DC power system DC switchboard, DC distribution board
DC distribution panels, DC power panels, DC power plant
Electronic information system
power plant control
Switching mode power supply (SMPS Box, SMPS cabinet), high-frequency switching mode power supply, UPS system
BBU (Battery Backup Unit) and RRU (remote radio unit) (RRH remote radio head)
Integrated power supply
Datacenter, IDC power system, Column head cabinet
Technical parameters of DC Surge Protector
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Model |
M10-24 |
M20-24 |
M20-48 |
M40-48 |
M40-220 |
|
Lightning protection zone(LPZ) |
1-2 |
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Standards Compliance |
IEC61643-11, EN60950 |
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Classification |
Class II. C/D |
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Nominal working voltage Un |
24V |
24V |
48V |
48V |
220V |
|
Max continuous operating voltage Uc |
30V |
30V |
85V |
85V |
320V |
|
Nominal discharge current (8/20µs) In |
5KA |
10KA |
10KA |
20KA |
20KA |
|
Max discharge current Imax (8/20µs) Imax |
10KA |
20KA |
20KA |
40KA |
40KA |
|
Protection level 8/20µs Up |
120V |
150V |
250V |
300V |
1300V |
|
Response time tA (L-N/N-PE) |
25ns/100ns |
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Protection model |
+、--PE |
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Dimension |
90 (H)×36(W)×65(L)mm |
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Recommend connecting line diameter(+- line /PE Line) |
≥2.5/4mm2 |
≥4/6mm2 |
≥6/10mm2 |
≥10/4mm2 |
≥16/4mm2 |
|
Mounting |
DIN-rail Mounting 35mm |
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IP code |
IP20 |
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Working conditions |
Temperature: -40 to 80℃, Relative humidity: ≤95％ |
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Feature of DC Lightning Arrestor SPD
DIN-rail mounting for easy installation
Plug connectors for quick and easy connection or rewiring
Thermal disconnect device
Low residual voltage, fast response
Remote alarm
Status indicator
The power supply protection devices are with CE certificated
If you want to choose a surge arrester supplier, Techwin is a nice choice.
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