Rack Mount, Cat B Compliant, IEC Distribution Units. Meets the requirements of BS6651: 1999 Annex C category B lightning surge protectionTen socket version has a 4.5kA surge withstand capability and is rated at 5 category B surgesEight socket version has 6.5kA surge withstand capability, is rated at 10 category B surges and has an integral filter that provides high attenuation to unwanted RFIRobust 2U high enclosurePower on/off switch, power on neon indicator and fusedThermal overload protectionSupplied with a 2m lead and a fitted 13A UK plug. Surge Current Withstand Capability. 4.5kA (8 / 20μs)3kA (8 / 20μs, 5 surges). 6.5kA (8 / 20μs) 3kA (8 / 20μs, 10 surges). Denotes protection unit and supply fuse are intact. Annex C Location Category. B, 5 surges (8381IEC: 10 surges). RFI Filter (838IEC/GB only). 2×0.22μF X2 between lines2x4700pF Y each line to earth. Listing and template services provided by inkFrog.