FSP-D40 is a T1+T2 surge protector specially
designed for photovoltaic power generation, it is
installed at the outlet of photovoltaic panels with
high risk of direct lightning strike, it is suitable
for photovoltaic system protection with DC
voltages of 600V, 1000V and 1500V.
Model FSP-D40
Description Type 1+2 PV DC surge protector
Pole 2P 3P 3P
Protection mode CM/DM
Max. operating voltage Ucpv 600 Vdc 1000 Vdc 1500 Vdc
Current withstand short-circuit Iscpv 1000 A
Operating current - to the voltage Ucpv Icpv none
Leakage current - to the voltage Ucpv Ipe none
Follow current If none
Nominal discharge current - 8/20 us In 20 KA
Max discharge current by pole - 8/20 us Imax 40 KA
Max. Lightning current by pole - 10/350 us Iimp 5 KA/12.5KA
Total lightning current - 10/350 us Itotal 10 KA
Total Maximal discharge current - 8/20 us Itotal 60 KA
Protection level CM/DM (at In) Up 2.8 KV 3.5 KV 5.1 KV
Type 1+2 surge protective device for Photovoltaic
VG-Technology
Up to 1500 Vdc
No leakage, no operating currents
Impulse currents Iimp/Itotal : 5/20μs & 10/350 us
Common and Differential Mode protection
Plug-in modules
EN 50539-11 compliance
