Installation
5.2 Output-side connection
SITOP PSU8200/3800 3ph
Manual, 05.2018, C98130-A7638-A1-6-7629
51
5.2
Output-side connection
The SITOP PSU8200/3800 3ph power supply provides at its output 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 53)).
Figure 5-2
Output connection
The output voltage is connected via the "+" and "–" terminals at the output of the power
supply (see Figure Output connection (Page 51)). 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.