Siemens SIMATIC S7-1500 System Manual page 248

• To ensure optimal stability, the clearance between the two DIN rail adapters must be no
more than 250 mm.
Figure 7-6
Note
Note that, depending on the mounting rail width, the mounting rail adapter can protrude up
to 4 mm on each side due to the drill holes.
You can find an overview of the protrusion dimensions for the various DIN rails in the table
below.
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
Distance between two DIN rail adapters
7.4 Installing the standard rail adapter
Installation
247