SMA SUNNY BOY STORAGE 2.5, Operating Manual

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6 Electrical Connection SMA Solar Technology AG
Operating manual SBS25-1VL-10-BE-en-13 34
8. Connect L, N and the grounding conductor to the
terminal block for the AC connection in accordance
with the labeling. When doing so, ensure that the
conductors are plugged completely into the
terminals up to the insulation. Tip: To release the
conductors from the terminals, the terminals must be
opened. To do this, stick a flat-blade screwdriver
(blade width: 3 mm) as far as it can go into the
rectangular opening behind the terminal.
L
N
9. Ensure that all terminals are allocated to the correct conductors.
10. Make sure that all conductors are securely in place.
11. Plug the terminal block with the connected
conductors for the AC connection into the slot in the
inverter until the terminal block clicks into place.
L N L N
12. Ensure that the terminal block is securely in place by slightly pulling it.
6.2.3 Connecting Additional Grounding
If additional grounding or equipotential bonding is required locally, you can connect additional
grounding to the inverter. This prevents touch current if the grounding conductor at the terminal for
the AC cable fails.
The required clamping bracket, the cylindrical screw M5x16, the washer and the spring lock
washer are part of the scope of delivery of the inverter.
Grounding of the battery
The grounding of the battery must not be connected to the connection point for additional
grounding on the inverter.
• Ground the battery according to the battery manufacturer's specifications.