SMA SUNNY TRIPOWER CORE1-US - Page 51

8 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 51
5. Secure the DC load-break switch against
reconnection using a suitable padlock.
O
6. If the multifunction relay is used, switch off any supply voltage to the load.
7. Wait until the LEDs have gone out.
8. Use a current clamp to ensure that no current is
present in the DC conductors.
A
B
C
+
_
+
<0.5A
9. Unlock the DC connector using the corresponding
unlocking tool and remove (refer to the
manufacturer manual for further information).
A
B
C
_
+
_
+
2
1
10. Ensure that no voltage is present at the DC inputs on
the inverter using a suitable measuring device.
A
B
C
<30V
ENGLISH