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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

Model

M10-24

M20-24

M20-48

M40-48

M40-220

Lightning protection zone(LPZ)

1-2

Standards Compliance

IEC61643-11, EN60950

Classification

Class II. C/D

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

Protection model

+、--PE

Dimension

90 (H)×36(W)×65(L)mm

Recommend connecting line diameter(+- line /PE Line)

≥2.5/4mm2

≥4/6mm2

≥6/10mm2

≥10/4mm2

≥16/4mm2

Mounting

DIN-rail Mounting 35mm

IP code

IP20

Working conditions

Temperature: -40 to 80℃, Relative humidity: ≤95%

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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