DC power SPD, also called DC lightning arrestor or 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, 24v DC surge protection devices, high voltage 600v, 1000v solar DC surge suppressors are also available. For the DC SPD price or other products of spd for power supply, such as ac spd, please feel free to contact us.
MOV structure
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
CE certificated
Widely used in communication equipment, DC power supply system.
DC power systemDC 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）RRU（ remote radio unit）（RRH remote radio head）
Integrated power supply
Data center, IDC power system, Column head cabinet
| Model | M10-24 | M15-48 | M20-24 | M20-48 | M40-24 | M40-48 | M40-220 |
| Lighning proection zone(LPZ) | 1-2 | ||||||
| Standards Compliance | IEC61643-11, EN60950 | ||||||
| Classification | Class II . C/D | ||||||
| Nominal working voltage Un | 24V | 48V | 24V | 48V | 24V | 48V | 220V |
| Max continuous operating voltage Uc | 30V | 75V | 30V | 85V | 30V | 85V | 320V |
| Nominal discharge current (8/20µs) In | 5KA | 10KA | 10KA | 10KA | 20KA | 20KA | 20KA |
| Max discharge current Imax (8/20µs) Imax | 10KA | 15KA | 20KA | 20KA | 40KA | 40KA | 40KA |
| Protection level 8/20µs Up | 280V | 400v | 350V | 400V | 500V | 550V | 1300V |
| Response time tA (L-N/N-PE) | 25ns | ||||||
| Protection model | +、--PE | ||||||
| Dimension | 90 (H)×36(W)×66(L)mm | ||||||
| Recommend connecting line diameter(+- line /PE Line) | ≥4/6mm2 | ≥4/6mm2 | ≥4/6mm2 | ≥4/6mm2 | ≥6/10mm2 | ≥6/10mm2 | ≥6/10mm2 |
| Mounting | 35mm DIN-rail Mounting | ||||||
| IP code | IP20 | ||||||
| Working conditions | Temperature: -40 to 80℃, Relative humidity: ≤95％ | ||||||
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