Siemens SINAMICS S120 Manual page 97

Figure 4-12
The line-voltage assignments for making the appropriate setting on the fan transformer are
indicated in the following table.
NOTICE
Consequences of incorrect voltage setting
If the terminals are not reconnected to the actual line voltage:
 The required cooling capacity cannot be provided because the fan rotates too slowly;
 The fan fuses may blow due to an overcurrent.
Note
For the fan transformer (2-ph. 500 to 690 V AC), a jumper is inserted between terminal "600
V" and "CON" terminal -
The order numbers for fan fuses that have blown can be found in the spare parts list.
Table 4- 12
Cabinet Modules
Manual, 03/2013, A5E03263538A
Connecting terminals for the fan transformers (2-ph. 500 to 690 V AC)
①
in the diagram above). Terminal "CON" is for internal use.
Line voltage assignments for setting the fan transformer (380 to 480 V 2 AC)
Line voltage
380 V ± 10%
400 V ± 10%
440 V ± 10%
480 V ± 10%
Fan transformer tap (-T1/-T2 –T10, -T20)
380 V
400 V
440 V
480 V
Electrical installation
4.6 Connections
95