SMA SC 250U - Manual (Page 53)

SMA America, LLC 6 Electrical connection
Installation Guide DISU_SCUS-IA-IUS111711 53
If necessary, tighten the screw terminal to the busbar again using a torque wrench with a torque of
27 ft‒lb. (37 Nm).
Connecting AC cables to busbars with cable lugs
Figure 42: Connection of AC cables to busbar with copper cable lug
Position Description
A Screw head - size: M 12
B Spring washer
C Washer
D Cable lug
E Busbar
F Nut - size: M 12
E
D
B C
A F
C B
A
B C
B
F
C