Description
Application：
This DC surge protective device is applied low voltage standard IEC EN 61643-11 to protect against DC power line system and other equipment from over-voltage and instantaneous over-voltage damage. Widely used in photovoltaic comber box, power inverter, DC distribution cabinet, etc. It has the advantages of a large discharge current, fast response time, and low residual voltage. Max. PV voltage up to UCPV ≤1000V dc.
Main features：
1. High discharge capacity, quick response, module pluggable;
2. Fast response time, din rail installation;
3. Double thermal disconnection devices, provide more reliable protection; 4. Green window means normal, red means defect, need to change module;
5. Remote alarm terminal optional.
6. T1+T2 surge protection.
Datasheet：
| Type | |
| SPD according to EN 61643-31 / IEC 61643-31 | type 1+2 / class I+II |
| Max. continuous operating DC voltage | 600 V DC |
| (DC+)-PE,(DC-)-PE ,(DC+)-(DC-) Ucpv | |
| Nominal discharge current (8/20μs) In | 20 kA |
| Maximum discharge current (8/20μs) Imax | 40 kA |
| Maximum impulse current (8/20μs) Itotal | 40 kA |
| Maximum impulse current (10/350μs) Iimp | 6.25 kA |
| Maximum impulse current (10/350μs) Itotal | 12.5 kA |
| continuous current for PV application ICPV | 0.2 mA |
| Voltage protection level (DC+)-PE,(DC-)-PE (DC+)-(DC-) Up | 2.2 kV |
| Response time tA | 25 ns (L-N) |
| Short-Circuit Current Rating Iscpv | 2000 A |
| Residual current a.c. and d.c. IPE | 0.3 mA(DC), 0.3 mA(AC), |
| Humidity range | 5% … 95% |
| Range of operating temperatures TU | -40°C … +70°C |
| Atmospheric pressure and altitude | 80k Pa … 106k Pa, |
| -500 m … 2000 m | |
| Operating state / fault indication | Green ok / Red defect |
| Number of ports | One port |
| Cross-sectional area (max.) | 2 AWG (Solid, Stranded) / 4 AWG (Flexible) |
| 35 mm2 (Solid, Stranded) / 25 mm2 (Flexible) | |
| For mounting on | 35 mm DIN rail acc. to EN 60715 |
| Enclosure material | thermoplastic |
| Place of installation | indoor installation |
| Degree of protection | IP 20 |
| Capacity | 4 module(s), DIN 43880 |
| Approvals | – |
| Type of remote signalling contact | changeover contact |
| a.c. switching capacity | 250V / 0.5 A |
| d.c. switching capacity | 250V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A |
| Cross-sectional area for remote signalling | max. 1.5 mm2 solid / flexible |
| terminals | |
| Remote signalling alarming mode | Normal: closed; |
| failure: open-circuit | |
| Acessibility | Inaccessible |
| Protection fuction | Overcurrent |
| PV earthing system | Earthed and Unearthed (both) |
| SPD failure mode (OCFM/SCFM) | OCFM |
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