Siemens SIRIUS ACT 3SU1 System Manual page 531

Backing plate diameter 60 mm, can be illuminated
Article No.: 3SU1901-0BD31-0AA0
3SU1901-0BD31-0(A,D,N)(A,B,S,T)0
Backing plate for potentiometer
Article No.: 3SU1900-0BG16-0RT0
3SU1900-0BG16-0(A,R)(A,T,U)0
SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 08/2018, A5E03457306020A/RS-AK/010
Dimension drawings
15.8 Accessories
531