User Manual
  Accessories 
  11.2 Protection 
SIRIUS ACT 3SU1 pushbuttons and signaling devices 
System Manual, 02/2015, A5E03457306020A/RS-AB/002 
247 
11.2
Protection 
11.2.1
Sealable cap 
The sealable cap is fitted before the pushbutton is installed so as to prevent unauthorized 
access to the pushbutton. 
Description
Article number
3SU1900-0 (http://mall.industry.siemens.com/mall/en/en/Catalog/Products/10221534) 
Sealable cap for pushbutton  Black  3SU1900-0DA10-0AA0 
Clear 
3SU1900-0DA70-0AA0 
Sealable cap for pushbutton with 
extended stroke 
Black  3SU1900-0EL10-0AA0 
Clear  3SU1900-0EL70-0AA0 
11.2.2
Protective cap 
The protective cap is fitted before the actuating element is installed so as to protect the 
element against dust and contamination. 
Description
Article number
3SU1900-0 (http://mall.industry.siemens.com/mall/en/en/Catalog/Products/10221534) 
Protective cap for pushbutton, flat 
3SU1900-0DB70-0AA0 
Protective cap for pushbutton, flat, silicone-free  3SU1900-0ED70-0AA0 
Protective cap for pushbutton, raised 
3SU1900-0DC70-0AA0 
Protective cap for pushbutton, flat, silicone-free  3SU1900-0EE70-0AA0 










