Siemens SIMATIC S7-1500 System Manual page 41

Preparing the 2000 mm mounting rail for installation
To prepare the 2000 mm mounting rail for installation, follow these steps:
1. Cut the 2000 mm mounting rail to the required length.
2. Mark the holes. The necessary dimensions can be found in the table "Dimensions for the
drill holes":
– Two drill holes at the beginning and end of the mounting rail
– Additional drill holes at equal intervals of 500 mm maximum, along the identification
3. Drill the marked holes according to the selected type of fastening.
4. Ensure that there are no burrs or shavings on the mounting rail.
Note
To ensure secure installation of the modules, make sure you position the drill holes centered
on the identification groove and only use screws of the maximum size.
①
②
Figure 4-2
Installing the mounting rail
Place the mounting rail such that sufficient space remains for installation of and heat
dissipation from the modules. Note the figure Minimum clearances in the control cabinet
(Page 38).
Screw the rail onto the mounting surface.
Automation system
System Manual, 12/2014, A5E03461182-AC
groove
Identification groove for additional drill holes
Additional drill hole
Preparing the 2000 mm mounting rail for installation
Installation
4.2 Installing the mounting rail
41