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DC link components
9.2 SITOP PSU400M
Connection to the 24 V busbars
The SITOP PSU400M provides an output voltage for the 24 V supply of the Smart Line Module via
the "+" and "–" terminals.
Table 9-5
OUTPUT DC
Connectable cable cross-sections
Tool
Tightening torque
Note
At the power supply output, you must connect the ground potential to the protective conductor
system (PELV). The cross-section of this connection must be at least as large as the cross-section
of the 24 V conductors.
More information
More information about connecting the device is provided on the internet:
SITOP PSU400M Manual (https://support.industry.siemens.com/cs/ww/en/view/59038719)
250
OUTPUT DC: Output-side connection (24 V) of the SITOP PSU400M
Terminal
+ positive
- negative
Technical data
Screw terminals:
Outputs "+" and "-", PE
0.2 mm
- 2.5 mm² (finely stranded) (AWG 24 ... 12)
2
Slotted screwdriver (0.6 x 3.5)/
cross-tip screwdriver PH1/
cross-tip screwdriver PZ1
0.5 - 0.6 Nm (lbf in)
Equipment Manual, 09/2023, A5E53307519B AA
Booksize power units
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