The WAGO part 859-793 is an optocoupler module specifically designed for railway applications. With a nominal input voltage of 5 VDC, this module ensures reliable signal isolation and protection for sensitive electronic devices. The output voltage range varies from 3 to 60 VDC, providing flexibility for different system requirements. The module features a 2-wire connection and a compact module width of 6 mm, allowing for easy installation in tight spaces. Its gray color enhances its aesthetic appeal and makes it easy to identify within a system. With a limiting continuous current of 0.1 A, this optocoupler module delivers optimal performance in railway applications.