SMA SUNNY ISLAND 6048-US - Technical Description SI4548_6048-US-Tb_En-13

6 Electrical Connection SMA America, LLC
44 SI4548_6048-US-TB_en-13 Technical description
5. Plug the negative DC cable into the "DC–" terminal block and tighten the fastening screw to a
torque of 21 ft-lbs. (28 Nm). Use an Allen key of
5
⁄
16
in. (8 mm).
6. Plug the positive DC cable into the "DC+" terminal block and tighten the fastening screw to a
torque of 21 ft-lbs. (28 Nm). Use an Allen key of
5
⁄
16
in. (8 mm).
DC connection area
The areas between the stripped line and the connection area must be clean. This ensures that
the transition resistance and the heating of the terminal points is reduced.
The Sunny Island has a DC connection for a maximum 3/0 AWG for DC+, DC − and PE.
DC cables
Do not connect any other components to the DC cables. Other components must be connected
directly to the battery via separate cables.