Installing and connecting the device 
  3.2 Mounting the device 
SIMATIC IOT2020, SIMATIC IOT2040 
Operating Instructions, 10/2016, A5E37656492-AB 
23 
 
Insufficient load carrying capacity 
If the mounting surface for wall mounting does not have a sufficient load-bearing capacity, 
the device may fall and be damaged. 
Ensure that the mounting surface on the wall can bear four times the total weight of the 
device, including fixing elements. 
 
Incorrect fixing elements 
If you use anchors and screws other than those specified below for wall mounting, safe 
mounting is not guaranteed. The device can fall and may be damaged. 
Use only the anchors and screws specified in the following table. 
 
Concrete  Select according to the  
specification of the mounting 
elements used 
•  Anchor, ∅ 6 mm, 40 mm long 
•  Screw, ∅ 4-5 mm, 40 mm long 
Plasterboard,  
Toggle plug, ∅ 12 mm, 50 mm long 
Metal,  
(at least 2 mm thick) 
•  Screw M4 × 15 
•  M4 nut