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| Quantity: | |
|---|---|
| Model | LDSP1s-PV40-DC1000/2+0 or 3+0 |
| Product Type | Type 2 DC Surge Protective Device |
| Application | Solar photovoltaic DC systems |
| Maximum Continuous Operating Voltage | 1000V DC |
| Nominal Discharge Current | 20kA, 8/20μs |
| Maximum Discharge Current | 40kA, 8/20μs |
| Voltage Protection Level | ≤3.8kV |
| Protection Mode | DC+/DC− to PE |
| Mounting | 35mm DIN rail |
| Status Indication | Green/Red |
| Remote Signal | Optional |
| Enclosure | UL94-V0 thermoplastic |
| Protection Degree | IP20 |
| OEM | Available |
| Brand | YQNT |
| Test standards | EN/IEC61643-31(Type 2 /Class 2/T2/Class C) | |||||
Max. PV voltage (d.c.) (Ucpv ) | 300VDC | 500VDC | 600VDC | 800VDC | 1000VDC | 1500VDC |
| Nominal discharge current(8/20us)In | 20KA | |||||
| Maximum discharge current (8/20us)Imax | 40KA | |||||
| Total lighting current(8/20 µs) DC+,DC-→PE (Imax) Itotal | 40KA | |||||
Voltage Protection Level Up | ≤1.5KV | ≤2.5KV | ≤2.5KV | ≤3.2KV | ≤4.0KV | ≤4.5KV |
Response time | <25ns | |||||
Degree of protection | IP20 | |||||
| Range of operating temperatures | -40ºC~+80ºC | |||||
Failure indication | Green: normal Red:invalid | |||||
| Pole | 2P | 2P/4P | 2P/4P | 2P/4P | 2P/4P | 4P |
Remote signal interface connection capability | Available | |||||
Protection Class | IP20 | |||||
1. What is the LDSP1s-PV40-DC1000 surge protective device?
The LDSP1s-PV40-DC1000 is a Type 2 DC surge protective device developed for the DC side of photovoltaic systems.
It has a maximum continuous operating voltage of 1000V DC, a nominal discharge current of 20kA and a maximum discharge current of 40kA. In practical terms, it helps divert short-duration surge energy before that energy reaches sensitive equipment such as a solar inverter.
Yes, provided the system’s maximum continuous DC voltage does not exceed the SPD’s 1000V Ucpv rating.
That last point matters. A system described as “1000V PV” still needs to be checked against its actual maximum array voltage under the expected operating and temperature conditions. The SPD should be selected from the electrical design data, not from the inverter label alone.
Ucpv is the maximum continuous operating voltage that the SPD is designed to withstand on the photovoltaic side.
Think of 1000V DC as the continuous-voltage ceiling for this model—not as its surge voltage and not simply as a marketing label. If the PV array can continuously rise above that value, a higher-voltage SPD variant should be used.
Q: Yes, we participate in 3-4 international exhibitions every year, such as the Canton Fair, the Middle East Dubai Electricity Show, the Asian Electricity Show, etc. A series of different exhibitions, and we look forward to seeing each other at the exhibition!
Q: We have a professional design team. Our models and spare parts are self-developedand produced. We can provide you with ODM services. The general time limit is 45-50 days.
Q: Our company has a history of 12 years. We have been specializing in the production of a series of electrical products such as surge protectors, fuses, circuit breakers, etc.
Q:We have established a complete quality management, supply chain and after-sales service system. Continuously introduce 6S international advanced concepts in management, and have successively passed ISO9001, ISO14001, OHSAS18001, CQC certification, CE certification, TUV certification, CB certification, RoHS certification.
Q: Our company is located in Jiujiang Economic and Technological Development Zone, Jiujiang City, Jiangxi Province, the only International trade port city in Jiangxi Province, with a plant area of more than 30,000 square meters and more than 200 employees.
Q: We welcome distributors in various countries to cooperate with us. Sales is an important assessment criterion. According to the different requirements of different countries, new and old customers are welcome to consult!
Q: Of course, you can find the installation manual of any product on our website, and there will be an installation manual in our product box.
