8 relay outputs on the device can be remotely controlled with MODBUS RTU communication. When a relay is activated, it outputs the voltage connected to the COM terminal and the corresponding output LED lights up. Loads up to 5 amperes can be driven directly from the relay output. It is necessary to control the load through a contactor if current will be drawn over 5 Amps. In this case, the relay output is used as the trigger signal of the contactor.