The single-pole venting pushbutton DT/AP/W is a water-resistant (IP44) manual release for ventilation purposes. It is suitable for surface mounting and is
equipped with two rocker switches "open" / "closed" and has two NO contacts, which do lock each other...
Key switch ST is a 1-pole switch that can be connected directly to the ventilation input of control units. In this way, one or more ventilation groups (consisting of windows, flaps and / or shutters) can be operated by a key.The STP is suitable for single-pole SHE and ventilation systems and is equi..