Mounting On Printed-Circuit Boards - Siemens SIRIUS ACT 3SU1 System Manual

8.2.3

Mounting on printed-circuit boards

Mounting on PCBs is only possible with 3-slot holders.
3SU1 devices can be mounted on PCBs using the 3-slot or 4-slot holder.
If the PCB carrier 3SU1900-0KA10-0AA0 is attached to a 4-slot holder, the holder cannot
accommodate an LED module. One position on the 4-slot holder is also left empty.
Typical diagram
A
B
C
D
E
F
G
SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 08/2018, A5E03457306020A/RS-AK/010
Actuating or signaling element (in this case: indicator light)
Front plate
Holder
PCB carrier
LED (PCB mounting)
Contact module (PCB mounting)
Printed-circuit board
3SU14 modules
8.2 Mounting
205