The Schneider Electric TM172ASCTB18 is a screw terminal block accessory designed to work with Modicon M171/M172/M173 logic controllers and their I/O modules. It provides a removable screw‑type terminal interface that makes it easy to wire the controller’s 18 inputs and outputs, power connections, and communication lines (such as Modbus or CAN bus). This accessory enhances installation convenience and wiring organization for industrial automation applications, especially in HVAC, pumping, and building automation systems.
