SMA Solar Technology AG
Electrical Connection of the Sunny Backup 2200
Technical Description
SBU2200-TEN083320
57
Additional Grounding of the Housing
If the Sunny Backup 2200 is used in a country that requires a second protective earth conductor
(e.g., Switzerland), you can ground the housing using an additional connection terminal.
Proceed as follows:
1. Remove the insulation from the protective earth
conductor.
2. Attach a suitable ring cable lug to the protective
earth conductor (maximum cross-section of
50 mm²).
3. Screw the ring cable lug onto the PE dome of the
housing (M8 x 20 mm screws).
7.3.2 AC1 (AS-Box-S.1)
The AC1 connection of the Sunny Backup 2200 is connected to the Automatic Switch Box S via three
conductors (see section 8.2.3 „Sunny Backup 2200 (X3/Sunny Backup)“ (76)).
Method for connecting the Sunny Backup 2200:
1. Loosen the metric-thread cable
screw connection on the right
bottom of the housing and
remove the dummy plug from the
cable opening.
2. Pull the three-core conductor
through the screw connection.
3. Pull the conductor into the
housing.
4. Flip open the terminals of the
AC1 through terminals (N and L
conductors) all the way.
5. Remove the protective insulation from the three conductors.
DANGER!
Risk of lethal electric shock.
Incorrectly installed cables may become detached from the through terminal.
• Do not use cable end sleeves when connecting the AC cable.
