500V DC SPD 2P Surge protective device Type II In 20kA Imax 40kA
China Aidun Electrical produce “SOLARSON” brand SST40-500 500V DC surge protective device Type II 2P (DC SPD) are used for solar PV system.
Product description
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 protection. Its installed location are 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.
This product accourding to IEC66143-1/EN61643-11.
Technical data
| Item | 026 | 027 | 028 | 029 |
| Product Type | SST40-500 | SST40-1000 | SST40-1000 | SST40-1500 |
| Pole | 2P | 2P | 3P | 3P |
| Electrical parameter | ||||
| Classified test | II | II | II | II |
| Uoc max (VDC ) | 500 | 1000 | 1000 | 1500 |
| Uc ( VDC ) | 500 | 1000 | 1000 | 1500 |
| ln (8 /20 )us ( kA ) | 20 | 20 | 20 | 20 |
| lma× (8 /20 )us ( kA ) | 40 | 40 | 40 | 40 |
| Up ( kV ) | 2.00 | 3.80 | 3.80 | 3.80 |
