Rocker switch, anthracite, Busch-free@home, covers, 2-way rocker switch on the left, with dimmer symbol As a cover for Busch-free@home sensor units (e.g. 6221/2.0) and sensor/actuator units (e.g. 6211/2.0) As a cover for KNX button coupling 4-way (6108/07).
