SMA
Solar Technology AG
Sunny Island Electrical Connection
Technical Description
SI2012_2224-TEN082311
45
7.2.3 Connecting the Sunny Island
There is a "DC —" and a "DC +" connection provided for each ring cable lug (max. 95 mm²) for the
battery feed cables in the Sunny Island.
The following cable cross-sections are recommended for the DC cables:
Install the DC connections in the following sequence:
1.
Remove the protective insulation from each DC cable.
2.
Fit the bare cable ends with ringed cable lugs.
3.
Introduce the DC cables into the enclosure from below and to the left.
4.
Attach the "DC —" conductor with the ring cable lug to the "DC —" connection and tighten the
retaining screw firmly (torque 4.0 Nm to 10 Nm).
5.
Then attach the "DC +" conductor with the ring cable lug to the "DC +" connection and tighten
the retaining screw firmly (torque 4.0 Nm to 10 Nm).
Sunny Island 2224:
35 mm² min.
95 mm² max.
Sunny Island 2012:
70 mm² min.
95 mm² max.
