SMA SC 500U Installation - Manual (Page 48)

SMA Solar Technology AG
48 SC500U-IUS093411 Installation Guide
Connecting 2 Cables to a Rail
Figure to the right: Layout for connecting a cable lug to
the rail in the Control Cabinet.
8.4.1 Prepare Cables for Connecting to Rails
1. Before connecting the cables, clean the contact surfaces.
2. Use only the non-woven abrasive delivered with the Sunny Central. Do not clean the surfaces
with sandpaper.
3. Do not touch the contact surfaces after they have been cleaned.
☑ The cable/s are connected to the rail.
A Screw head
B Lock washer
C Cable lug
D Rail
E Nut
NOTICE
When transporting and storing the Sunny Central, oxide layers may form on the contact
surfaces of the cable connection.
Yield loss due to poor electrical conductivity.
E B C D C B A