Output-Side Connection - Siemens SITOP Series Operating Instructions Manual

5.2

Output-side connection

At its output, the SITOP PSU8200 1ph 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 (see section Technical data (Page 31)).
Figure 5-2
The output voltage is connected via the + and - terminals at the output of the power supply
(see Figure 5-2 Output connection (Page 29)). 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, Protected Extra Low Voltage)), 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.
SITOP PSU8200 1ph
Operating Instructions, 06.2014, C98130-A7633-A1-2-7629
Output connection
Installation
5.2 Output-side connection
29