User Manual
SIRIUS ACT 3SU1 pushbuttons and signaling devices 
System Manual, 02/2015, A5E03457306020A/RS-AB/002 
121 
  3SU12 compact units 
6 
Types of 3SU12 compact units 
On the 3SU12 compact units, the electrical function (illumination and / or switching functions) 
is integrated into the actuating or signaling element. The electrical function is not expandable 
or replaceable. The compact versions are also not combinable with other modules of the 
3SU10 / 3SU11 modular series. 
3SU12 compact units are intended exclusively for front plate mounting.  
The compact units are secured with the holder included in the scope of supply. The cables of 
the compact units are connected via the screw-type terminals attached to the rear. 
You can find information on the holders in Chapter "Holders (Page 41)". 
The following compact units are available: 
●  Pushbuttons with extended stroke 
●  Sensor switches (integrated contact module) 
3SU12 actuating and signaling elements 
The 3SU12 pushbuttons and signaling elements are available in the following designs: 
●  Front ring and collar in plastic 
●  Front ring in metal matte and collar in plastic 
●  Front ring and collar in metal 










