This Harmony SSL socket for solid state slim interfacing relay has screw clamp terminals and a rated voltage of 5V DC. It also offers clear circuit labelling on the sides to facilitate installation and maintenance. It features a visual indicator LED for a simpler troubleshooting and commissioning. Its clear schematic on the side of the socket enables easier wiring and maintenance. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0