HSP-D40
DC Surge Protective Device(DC SPD)
20-40KA
- 2P 500V,600V,800V,1000V
- 3P 1000V 1500V
- Type:T2,T1+T2
Surge protective device, protect against lightning surge voltages in solar system (photovoltaic power supply system). These units must be installed in parallel on the DC networks to be protected and provide common and different modes of protection. Its installed location is recommended at both ends of the DC power supply line(solar panel side and inverter/converter side), especially if the line routing is external and long. High-energy MOVs equipped with specific thermal disconnectors and related failure indicators.
HSP-D40 Type 2(Class 2) T2
HSP-D40 Type 1+2 (Class 1+2) T1+T2
Q&A
Q: What's the warranty for SPDs?No need to replace it all the time?
It is recommended to replace it per 3-5 years.
Q: How to purchase a suitable DC SPD from HYOCIE?
You have to assess the risk of lightning strikes and discharge capacities before purchasing.
Usually customers purchase type 2, which is DC SPD T2 series, because it is used at distribution boards.
Q: If SPD fails, what will happen?
When an SPD fails, the MOV short-circuits. It must be disconnected from the system immediately. We recommend using a circuit breaker or an internal/external overcurrent fuse in front of an SPD.