Installation
5.2 Output-side connection
SITOP PSU300S
Manual, 12.2016, C98130-A7587-A1-7-7629
33
At its output, the SITOP PSU300S power supply provides an isolated (= non-grounded)
SELV output voltage (Safety Extra Low Voltage). The output of the power supply 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 35)).
Figure 5-2 Connection of the output voltage (example: 6EP1436-2BA10)
The output voltage is connected via the + and - terminals at the output of the power supply
(see Figure Connection of the output voltage (example: 6EP1436-2BA10) (Page 33)).
Ensure 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
ground
ed. In this case, ideally, the grounding at the output should be directly connected from
-" of the power supply to a suitable connection point of the protective conductor
system (PE) of the plant or system.
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