Siemens SCALANCE XRH-300 Product Manual page 45

Note
Mounting with two mounting brackets
Mounting in a 19" rack is performed with two mounting brackets, which are pre-installed on the
front of the rack unit.
Alternatively, you can mount the rack unit in a 19" control cabinet from the rear. To do this,
unscrew the two mounting brackets from the rack unit and attach them upside down to the two
side panels at the rear of the unit. The rack unit can then be installed in a 19" control cabinet.
Note
Installation with four-point mounting
Where mechanical strain is liable to be high, for example when used on a ship, four-point
mounting is necessary.
You will find details in the sections "Four-point mounting (Page 46)" and "Mechanical stability
(in operation) (Page 93)".
Mounting
Risk of injury if subjected to irregular mechanical strain
The device must be mounted in the 19" rack so that even if there is irregular mechanical strain,
no dangerous situation can result.
Figure 5-2
To install the device in a 19" rack, follow the steps below:
1. Position the device at the required location in the 19" rack.
2. Screw the two brackets to the 19" rack in each case with 2 securing screws.
3. Connect the cables, see section "Connecting up (Page 51)".
SCALANCE XRH-300/XRM-300
Equipment Manual, 10/2022, C79000-G8976-C546-01
CAUTION
19" rack mounting
Installing and removing
5.3 19" rack mounting
45