Thermoelectric actuator, flush-mounted installation boxes and inserts, inserts for room temperature controllers, thermoelectric actuator with function display For controlling heaters and cooling ceilings in conjunction with conventional room temperature controllers (e.g. 1094 U) or KNX, or free@home heating/fan actuators (e.g. 6164/46, 6254/0.XX) With function display (open or closed). Closed when de-energized. Max. opening/closing time: 3.5 min A suitable valve adapter is required for installation. Current consumption: 4 mA (approx. 1W) Inrush current: < 550 mA (max. 100 ms) Connection cable: 1.0 m (plug-in) Nominal frequency: 50 Hz/60 Hz Device protection class: IP 54 Dimensions (H x W x D): 59 mm x 45 mm x 53 mm