FV 20 C / 3+NPE three phase surge protective devices / surge protector / surge protection device / SPD are suitable for lightning and over-voltage protection in AC 50/60Hz, 230/400V. There is a thermal cutoff member inside it, when the device is over-current or over-voltage and the puncture is nonseviceable, the thermal cutoff member will automatically separate from the protector from the electrical network, and the indication window will turn red from green.

Normal operating voltage (Un): 220V / 380V

Max cont operating voltage (Uc): 275V /320 / 385V /440V

Voltage protective level (Up): ≤ 1.2kV / 1.5kV /1.8kV/ 2.0kV

Nominal discharge current (In): 20KA (8/20Us )

Maximam discharge current (Imax): 40KA (8/20Us)

Response time (Ts): ≤25ns

Operating temperature range: -40℃- +70℃

Relative humidity: ≤95%

N. W.: 350g/pc

Carton size: 450*245*265mm

We also can supply SPD for Photovoltaic (PV) system protection, SPD with Imax=60KA, 100KA. and type B Surge arrester with spark gap.