Connecting The Sunny Island - SMA Sunny Island 2012 Technical Description

SMA Solar Technology AG

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:
Sunny Island 2224:
Sunny Island 2012:
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).
Technical Description
35 mm² min.
95 mm² max.
70 mm² min.
95 mm² max.
Sunny Island Electrical Connection
SI2012_2224-TEN082311 45