SMA SC 250U - Manual (Page 56)

6 Electrical connection SMA America, LLC
56 DISU_SCUS-IA-IUS111711 Installation Guide
6.5.2 Connecting protective earth to busbar
You can connect up to 4 PE cables to the busbar(s). For every PE cable carry out the following
instruction.
1. Strip the PE cable by about 1
1
⁄
5
in. (30 mm).
2. Open the screw terminal completely.
3. Plug the copper inner conductor of the PE cable into
the screw terminal.
4. Tighten the screw terminal with a torque wrench
and a torque of 41 ft-lb. (56 Nm).