Assembling   
4.8 Mounting power supply units 
  SCALANCE XR-500 
54  Operating Instructions, 05/2017, A5E03275845-11 
 
Figure 4-5  Rear panel mounting of the SCALANCE XR552-12M. SCALANCE XR528-6M is used 
analogously. 
On the rear panel of an IE switch, there are sockets for the direct connection of a maximum 
of two PS598-1 power supply units. On the rear of the PS598-1 power supply unit there is a 
corresponding plug. 
To mount the PS598-1 power supply unit on the rear panel of an IE switch, follow the steps 
below: 
1.  Fit the PS598-1 power supply unit and the IE switch together 
①. 
The two devices are equipped with positioning elements that must engage during 
installation and protect the plug from excessive bending strain. 
2.  Screw the two devices to the mounting plates supplied with the main device 
②. 
The maximum tightening torque of the screws is 0.5 Nm.