Siemens SITOP Series Equipment Manual page 81

To achieve an output voltage of 24/48/96 V DC, two 12/24/48 V SITOP power supplies of the
same type can be connected in series. Depending on the grounding point of the secondary
output voltage, voltages of +24/48/96 V, ±12/24/48 V or -24/48/96 V can be realized. To
guarantee safe and reliable operation of the power supplies in all operating states, for the
series connection, the subsequent wiring using two redundancy modules SITOP RED1200 is
recommended.
Figure 5-12
SITOP expansion modules
Equipment Manual, 09.2022, A5E36605235-2-76
Series connection for increased voltage 1
Installation
5.2 Output connections
81