Dimming actuator 4-way standard for Gira One and KNX 4 x 225 W/VA Function in the Gira KNX system: - Dimming actuator with integrated bus connection. - Switching and dimming of incandescent lamps, HV halogen lamps, dimmable HV LED lamps, dimmable compact fluorescent lamps, dimmable inductive transformers with LV halogen or LV LED lamps, dimmable electronic transformers with LV halogen or LV LED lamps. - Automatic or manual selection of the dimming principle that suits the load. - Idle, short-circuit and overtemperature proof. - Manual operation of the outputs independent of the bus. - Temporary status display can be activated, linking via communication object across several actuators possible. - Power expansion through power additives. - To simplify configuration, all existing dimming channels can be assigned to the same parameters in the ETS and thus parameterized identically. - Actively sending feedback or status messages can be globally delayed after bus voltage returns or after an ETS programming process. Dimming outputs: - Independent switching and dimming of the dimming outputs. - Specification of the load type and determination of the dimming principle possible: Universal (with automatic calibration process), electronic transformer (capacitive / trailing edge), conventional transformer (inductive / leading edge), LED (leading edge) or LED (leading edge). - Dimming characteristic curve per channel can be configured in the time range and value range to adapt to the respective connected load. - Setting of the dimmable range possible: switch-on brightness, basic brightness and upper dimming limit. - Behavior when receiving an absolute brightness value can be set (dimming, jumping, fading). - Behavior when dimming up relatively when switched off can be set (switching on the channel, no reaction). - Switching feedback: Active (sending on the bus when there is a change or cyclically) or passive (object can be read out) feedback function. - Reaction to bus voltage return can be set for each output. - Lock function can be parameterized for each channel. - Time functions (switch-on, switch-off delay). - Staircase light function with advance warning function through time-controlled reduction of lighting or activation of permanent lighting. - Inclusion in light scenes possible: Up to 16 internal scenes can be parameterized for each output. - Delay time when scene is called up can be configured. - Dimming behavior when a new scene is called up can be set (jumping, dimming, fading). - Visual feedback when saving a scene. - Brightness value feedback: Active (when changed or sent cyclically to the bus) or passive (object can be read out) feedback function. - The type of update can be set for active feedback objects (when the input object changes or when the feedback value changes). This means that individual adaptation to visualizations is possible. VDE approval in accordance with EN 60669-1, EN 60669-2-1.The maximum connected load depends on the selected operating mode (leading edge or trailing edge). You can find more information in the operating instructions. Power extension using Gira power add-ons. Installation on DIN rail. KNX Data Secure compatible. Fast download of the application (Long Frame Support). Firmware updates are possible with the Gira ETS Service App (additional software). Connection and branch terminal for KNX included in delivery.