User Manual
  Safety notes 
  2.2 Current information about operational safety 
SIRIUS ACT 3SU1 pushbuttons and signaling devices 
System Manual, 02/2015, A5E03457306020A/RS-AB/002 
25 
2.2
Current information about operational safety 
Important note for maintaining operational safety of your system 
WARNING 
Hazardous Voltage 
Can Cause Death, Serious Injury, or Property Damage. 
Please take note of our latest information. 
Systems with safety-related characteristics are subject to special operational safety 
requirements on the part of the operator. The supplier is also obliged to comply with special 
product monitoring measures. For this reason, we publish a special newsletter containing 
information on product developments and features that are (or could be) relevant to 
operation of safety-related systems. By subscribing to the appropriate newsletter, you will 
ensure that you are always up-to-date and able to make changes to your system, when 
necessary: 
SIEMENS newsletter (http://www.industry.siemens.com/newsletter) 
Request the following newsletter under "Products and Solutions": 
•  Industrial Controls - SIRIUS News (en) 
•  Safety Integrated Newsletter 










