SMA SC 500HE-US Installation - Manual (Page 61)

SMA America, LLC 8 Electrical Connection
Installation Manual SC500HEUS-IA-US_en-14 61
Procedure of connecting
2. Position the cable lug or lugs on the busbar.
3. Tighten the screw with a nut in a clockwise direction.
4. Connect all DC cables as illustrated above.
Position Description
A Screw head - size: M 12
B Spring washer
C Washer
D Cable lug
E Busbar
F Nut - size: M 12
1. /05*$&
Oxide layers on contact surfaces after transport and storing of the Disconnect Unit.
Yield loss resulting due to poor electrical conductivity.
• Before connecting the cables, clean the contact surfaces.
• Use only the non-woven abrasive delivered with the Sunny Central.
• Do not clean the surfaces with sandpaper.
• Do not damage the tin coating.
• Do not touch the contact surfaces after they have been cleaned.
E
D
B C
A F
C B
A
B C
B
F
C