ElectricThe SR3XT141B is a Zelio SR3 Expansion Module 14 I-O 24VAC manufactured by Schneider Electric. This module is used to extend the number of inputs and/or outputs on a Zelio controller. It offers 14 inputs, 8 transistor outputs and 6 relay outputs which allow up to 24VAC power to be connected to the controller. This additional module is designed to be easily integrated into and out of any SR3 controller, enabling it to expand control capabilities. The SR3 relay is designed to be the most compact, reliable, and efficient control system on the market. With built-in features such as an integrated logic display, expanded memory, and integrated analog inputs and outputs, the SR3 relay controller is designed to provide users with the flexibility they need.