The Crydom DRS4 is a four-channel DIN rail mount socket, providing a convenient and secure mounting solution for solid-state relays (SSRs) in industrial applications. It is designed for easy connection with cage style screw terminals and fits standard 35mm DIN rail. The socket includes LED indicators for visual status feedback, enhancing operational monitoring and troubleshooting. Proper resistor selection (1KΩ or 4.7KΩ) is required based on the control voltage range (3-15Vdc or 15-32Vdc).