Siemens SIRIUS ACT 3SU1 - Stackability of Contact Modules

3SU14 modules
8.1 Overview
SIRIUS ACT 3SU1 pushbuttons and signaling devices
176 System Manual, 08/2018, A5E03457306020A/RS-AK/010
8.1.6.2
Stackability of contact modules
Note
Stackability
With SIRIUS ACT, the modules are mounted on the holder without any further accessories.
The modules can be stacked without needing to use a tool (max. 2x 1
-pole modules behind
one other).
Please note that a 2
-pole contact module may not be stacked on a 1-pole contact module.
①
Actuating element (here: EMERGENCY STOP mushroom pushbutton)
②
Holder
③
Module 1
④
Module 2