Room actuator 4/2-way 16 A normally open, manual, status, REG KNX light gray. Room actuator with 4 outputs for switching independent loads or controlling 2 drives, with 4 potential-free normally open contacts can also be parameterized as normally closed, any mixed operation of drive and switching functions possible, suitable for switching different external conductors, 2 additional electronic outputs (Triac) for connecting thermoelectric actuators 230V. For individual single room control. For continuous (PI) or switching (2-point) control, with emergency program e.g. in the event of a sensor or bus failure, 4 manual control buttons for on/off (up/down) and bus function on/off per channel/device, manual operation also possible without a bus e.g. on a construction site, with programming button and red programming LED, with 6 red status LEDs and 3 red LEDs as manual operation indicator, bus connection via connection terminal, with screw terminals.