Twin Pushbuttons - Siemens SIRIUS ACT 3SU1 System Manual

3SU10 pushbuttons and indicator lights
5.1 3SU10 devices for use on 3-slot holder
5.1.5

Twin pushbuttons

Twin pushbuttons are used to actuate contact modules and can also function as display
devices. Thanks to separate actuating surfaces, it is possible to switch up to 2 independent
module positions separately using only one command point. The switching function of all
versions of the twin pushbuttons is latching.
Twin pushbuttons are available in different variants according to the following features:
● Height of button (flat or raised) with 2 different button combinations:
– Flat / flat
– Flat / raised
● Collar and front ring material
● Colors of the buttons
Twin pushbuttons are supplied as standard with pressure plates
Figure 5-1
The diagram above is an example of the pressure plates on a selector switch. The procedure
for a twin pushbutton corresponds to that for a selector switch.
Each pressure plate can be individually removed and reinstalled.
The twin pushbuttons are designed in such a way that, by using an LED module, the center
surface of the twin pushbutton can be illuminated.
The pressure plates must be removed before the LED module is installed.
In the case of illuminated twin pushbuttons, this step is not necessary. They are already
prepared for illumination at the factory.
For further information, refer to Chapters "Mounting (Page 109)" and "Twin pushbuttons with
standard inscription (Page 99)"
With standard installation (arrow on collar at the top), the upper button always has the first
specified color and the lower button the second specified color. The same principle is used
with the button heights. The first specified height refers to the top button, and the second
specified height to the lower button.
Example: 3SU1051-3BB42-0AA0
Top button = green and flat
Lower button = red and raised
50
Typical diagram
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SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 08/2018, A5E03457306020A/RS-AK/010