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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