Supra mains distribution block consisting of BS sockets conforming to British Standards British Standard BS1363/A including Ireland. The input is a 10 ampere male chassis connector according to the international standard IEC-320. It provides a non-intrusive filtering (NIF) and a 3-way surge protection (SP).

Supra Mains distribution block in aluminum with non-intrusive filtering (NIF). The shielded chassis protects your equipment from radiated mains, RF pick-up and allows you to enjoy your hi-fi set or TV's full potential. Supra NIF (Non-Intrusive Filtering) is an efficient high frequency (RFI) transient filter. It is designed and configured to efficiently suppress RFI interference, but not to dampen quick recharge demands from the connected devices power supplies. Super NIF is developed by Ben Duncan Research in England.