SMA SC 500CP-10-JP Installation Manual - Manual (Page 55)

SMA Solar Technology AG 11 AC Connection
Installation Manual SCCP-JP-IA-A4-en-12 55
11.2 Connecting the AC Cables
11.2.1 Cable and Terminal Lug Requirements
Cables:
☐ Use copper or aluminum cables only.
☐ Maximum cable cross-section: 325 mm
2
☐ For the inverter types Sunny Central 630CP-JP and Sunny Central 800CP-JP, the AC cables must be designed for
maximum voltages of 1,450 V to ground and a root-mean-square value of 800 V.
☐ For the inverter type Sunny Central 500CP-JP, the AC cables must be designed for maximum voltages of 800 V to
ground and a root-mean-square value of 390 V.
☐ All cables of the line conductors must be of the same length.
Terminal lugs:
☐ Use tin-plated terminal lugs only.
☐ Only use the nuts, screws and washers included in the scope of delivery for the connection.
☐ Always connect two-hole terminal lugs with two screws.
☐ The terminal lugs must be designed for temperatures of at least +95°C.
☐ The width of the terminal lugs must exceed the washer diameter (32 mm). This will ensure that the defined torques
are effective over the whole surface.
11.2.2 Connection with One Terminal Lug
Figure 23: Connecting with terminal lug for terminals with single assignment
Position Designation
A Nut
B Spring washer
C Fender washer
D Copper busbar
E Tin-plated one-hole terminal lug
F Screw M12