FI residual current socket 30 mA with increased touch protection (Safety Plus) in matte black. This FI residual current socket is a fixed protective device with voltage-independent residual current tripping according to VDE 0664. Its operating principle is similar to that of a residual current circuit breaker. Installation is done in a deep device box. The increased touch protection (Safety Plus) complies with the DIN VDE 0620-1 standard. Residual current protective devices (RCDs) in a single unit with a socket can also provide protection for an adjacent socket under a common cover, according to DIN VDE 0100-530:2018-06.