Siemens ESM - Manual (Page 74)

Installation, Commissioning, Cleaning and Maintenance
Industrial Ethernet OSM/ESM
70 C79000-Z8976-C068-10
The following table shows how to mount the device on different types of walls:
Wall Mounting
Concrete wall Use four wall plugs 6 mm in diameter and 30
mm long. (drill hole 6 mm in diameter, 45 mm
deep). Use screws 4.5 mm in diameter and 40
mm long.
Metal wall
(min. 2 mm thick) Use screws 4 mm in diameter and at least 15
mm long.
Sandwich type plaster wall
(min. 15 mm thick) Use an anchoring plug with at least
4 mm diameter.
Note
The module must be secured to the wall so that the mounting can carry at least
four times the weight of the module.