Hager Surge Protective Device SPD 4P T2 TNS/TT Uc 350V In 20kA Imax 40kA SPB420

SPD 4P T2 TNS/TT Uc 350V In 20kA Imax 40kA 315A. A surge protection device suitable for TT/TN-S electrical systems. HagerSurge Protection Device.

eBay