The Modbus module with 4 digital outputs was developed for decentralized switching tasks. It is suitable for switching electrical components, e.g. motors, contactors, lamps, blinds, etc. The relay contacts must be protected by suitable load-dependent measures. The module has a manual control level with which the relays can be switched manually. The outputs can be switched via standard registers using a Modbus master. The module is addressed and the bit rate and parity are set using 2 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