10 digital input output expansion module - 24 VDC/h2 power supply>The SR3XT101BD expansion module manufactured by Schneider Electric allows you to increase the number of digital inputs and relay outputs of your Zelio logic PLC. Please note this input module outputs are only compatible with modular Zelio Logic controllers. Compact models cannot accommodate extensions. Supply voltage: 24 VDCTotal additional inputs and outputs: 10Additional digital inputs: 6Additional relay outputs: 4