Switches 4 independent electrical consumers via ABB i-bus® KNX using potential-free contacts. The switching actuator has an integrated energy function and has a current measurement for each output. This includes an easy-to-use calculation of power and energy consumption per output or group of outputs. An integrated load control object enables easy integration into a load management system. Each output can be operated manually and has a switch position indicator. The 16/20A, 16A-AC3 (C-load) device is particularly suitable for switching loads with high inrush current peaks, e.g. LED lamps or fluorescent lamp loads.