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10 Disconnecting the Inverter from Voltage Sources
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
Procedure:
1. Disconnect the circuit breaker and secure it against reconnection.
2. If an external DC load-break switch is installed, disconnect the external DC load-break switch
from all voltage sources.
3. Set the DC load-break switch of the inverter to O
.
4. Wait until the LEDs have gone out.
5. Use a current clamp to ensure that no current is present in the DC cables.
6. Release and remove all DC connectors. To do
this, insert a flat-blade screwdriver or an angled
screwdriver (blade width 3.5mm) into one of
the slide slots and pull the DC connectors out in
a downward direction. Do not pull on the cable.
1
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10 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Operating ManualSB15-25-BE-en-1050
50


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