Output-Side Connection - Siemens SITOP PSU100C 6EP1321-5BA00 Operating Instructions Manual

5.2

Output-side connection

The SITOP PSU100C power supplies provide an isolated (= non-grounded) SELV (Safety
Extra Low Voltage) output voltage. The output of the power supplies is no-load, overload and
short-circuit proof. If an overload occurs, the electronic current limiting function limits the
output current to a maximum value (refer to Chapter Technical data (Page 27)).
Figure 5-2
The output voltage is connected via the + and - terminals at the output of the power supply
(see Figure 5-2 Connecting the output voltage (example 6EP1332-5BA10) (Page 25)). Make
sure that the output cables are dimensioned correctly for the maximum output current rms
value and fused accordingly.
Note
If the safety concept of the plant or system specifies that the DC output circuit should be
grounded (PELV), then it is permissible that the output voltage of the SITOP power supply is
grounded. In this case, ideally, the grounding at the output should be directly connected from
terminal "-" of the power supply to a suitable connection point of the protective conductor
system (PE) of the plant or system using a minimum 1.5 mm
SITOP PSU100C
Operating Instructions, 06.2013, C98130-A7599-A1-2-7629
Connecting the output voltage (example 6EP1332-5BA10)
Installation
5.2 Output-side connection
conductor cross-section.
2
25