Technical specifications   
7.2 Directives and declarations 
  SIMATIC IOT2020, SIMATIC IOT2040 
42  Operating Instructions, 10/2016, A5E37656492-AB 
Every person without a conductive connection to the electrical potential of his/her 
surroundings can be electrostatically charged. 
The material with which this person comes into contact is of particular significance. The 
figure shows the maximum electrostatic voltages with which a person is charged, depending 
on humidity and material. These values conform to the specifications of IEC 61000-4-2. 
 
Antistatic materials such as wood or concrete 
 
There is no equipotential bonding without grounding. An electrostatic charge is not 
discharged and may damage the ESD. 
Protect yourself against discharge of static electricity. When working with electrostatic 
sensitive devices, make sure that the person and the workplace are properly grounded.