The Modbus module with 4 digital triac outputs was developed for decentralized switching tasks. It is suitable for switching electrical components such as relays, contactors, HVAC valves, etc. The outputs can be switched via standard registers using a Modbus master. In addition, the outputs can be manually overridden using switches on the device. The module is addressed and the bit rate and parity are set using two address switches on the front or via software. Suitable for decentralized installation on TH35 mounting rails in accordance with IEC 60715 in electrical distribution boards. Connection with screw terminals