The Schneider Electric STBACO0220K is a 2-channel, isolated analog current output module from the Advantys STB distributed I/O system. This module is designed to generate precise 0-20 mA or 4-20 mA control signals for driving field actuators such as proportional valves, variable speed drives, or process controllers. It features channel-to-channel and channel-to-bus isolation for enhanced noise immunity and signal integrity in industrial automation environments.