User Manual
  3SU10 device range 
  4.3 Mounting 
SIRIUS ACT 3SU1 pushbuttons and signaling devices 
System Manual, 02/2015, A5E03457306020A/RS-AB/002 
93 
4.3.4
Installation sequence illustrated by example of EMERGENCY STOP mushroom 
pushbutton 
Procedure
①
Hold the backing plate (optional accessory) onto the front plate.
②
Insert the actuati
ng/signaling element (EMERGENCY STOP mushroom pushbutton in 
this example) from the front into the opening of the backing plate and the front plate. 
③
Fit the holder from behind
④
Tighten the screw on the holder (tightening torque 1.0 to 1.2 Nm).
⑤
Snap 
the contact module(s) / LED module from behind onto the holder. 
Fit the narrow snap hook into the associated contour on the holder. 
⑥
Engage the broad snap hook into the associated contour on the holder.
Ensure secure latching. 










