With built-in slide switch and control lamp for night-time reduction of 4 K. Switching contact opens when the set temperature is reached. With spreader fastening With separate connection for time-controlled night-time reduction (4 K). Class of temperature controller: 1 Contribution to room heating energy efficiency: 1.0%. Only in conjunction with commercially available flush-mounted device boxes in accordance with DIN 49073, install or Busch-Jaeger item no. 3040 flush-mounted box for masonry, 3050 flush-mounted box for hollow walls or 3060 flush-mounted box for concrete). Control valves in the de-energized closed version are required for the controller. E.g. item no. 6164/11-102. Switching temperature difference ± 0.5 K.
