LoRad Shielded Mains Blocks in Aluminium 
The mains blocks are fully shielded from radiated electric fields by means of their aluminium chassis. The conductive chassis drains the interference down to ground. It has to be connected to an earthed socket with an earthed mains cable, in order to work properly. For a useful degree of shielding and immunity, the mains block should be combined and employed with SUPRA LoRad shielded mains cables.