Ac Disconnection Unit; Dc Switchgear - SMA SUNNY CENTRAL 500CP XT User Manual

3 Product Overview
3.3.1.2

AC Disconnection Unit

The AC disconnection unit disconnects the inverter from the MV transformer.
Figure 4: Switch positions of the AC disconnection unit from ABB
Position
A
B
C
3.3.1.3

DC Switchgear

The DC switchgear disconnects the inverter from the PV power plant.
Figure 5: Indicators on the DC load-break switch
Position
A
B
C
D
18 SCCPXT-E7-BA-en-58
Designation
Switch position on
Central switch position
Switch position off
Designation
Spring status indicator
Position indicator
ON button
OFF button
Explanation
The AC disconnection unit is closed.
The AC disconnection unit was tripped and is open.
The AC disconnection unit is open.
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