The DSPD are suitable for second level of protection in supply distribution panels in which Type 1 protectors are installed, or the first level of protection in residential, commercial or other applications not exposed to direct strikes or with no external lightning protection system.
They are installed at the origin of the low voltage system or close to sensitive equipment to protect against transient voltages coupled into the low voltage network.
| D | Enterprise code |
| SPD | Surge Protection Device |
| 20 | Max Discharge Current 20KA/40KA |
| 275 | Max Continuous Operating Voltage 275V/320V |
Circuit Diagram
Connections
Product and installation dimensions(MM)
Order information
| Product name | DSPD-20 |
| Standard Compliance | IEC/EN 61643-11 |
| Certificate | CE, SEMKO, CB |
| Electrical characteristics | |
| Type / Class | Type 2 / Class II |
| Max Continuous Operating AC Voltage Uc | 275 V |
| Max Continuous Operating AC Voltage [N-PE] Uc | 255V |
| Nominal Discharge Current (8/20 microsecond) In | 20KA |
| Max Discharge Current (8/20 microsecond) Imax | 40KA |
| Voltage Protection Level Up | <1.3KV |
| Voltage Protection Level 5kA Up | <1 kV |
| Voltage Protection Level [N-PE] Up | <1.5 kV |
| Temporary Overvoltage with Stand (5 second) Ut | 335V |
| IResidual Current At Uc- Ipe | <100 µA |
| Short Circuit Current Rating ISCCR | 3KA |
| Follow Current extinguishing Capability [N-PE] a.c. Ifi | 100Ams |
| Max Backup Fuse | 125 A gL/gG |
| Response Time | <25 ns |
| Response Time [N-PE] | <100 ns |
| Operating Temperature Range | –40°C – 80°C |
| Operating State/Fault Indication | Green/Red |
| Cross-section Area | 4-35 sq mm |
| For Mounting on | 35 mm Din Rail |
| Enclosure Material | Thermoplastic UL94-V0 |
| Degree of Protection | IP20 |
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