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(A) Router (B) Battery (C) PV string
(D) Inverter (E) AC circuit breaker (F) Smart Energy Meter
(G) Grid (H) Backup loads (I) Monitoring device
table 6-3 Cable requirements
N-
o.
Cable
Type
Specification
Outer
diameter
Cross section
1 Ethernet cable
CAT 5E outdoor shielded
network cable
5.3 ~ 7 mm 8 * 0.2 mm²
2 Power Cable
Complying with 1,000V
and 35A standard
5.5 ~ 8 mm
4 mm²
Complying with 1,000V
and 40A standard
6 mm²
3 DC cable
Outdoor multi-core copper
wire cable
Complying with 1,000V
and 30A standard
6 ~ 9 mm 4 ~ 6 mm²
4
AC cable *
Outdoor multi-core copper
wire cable
14 ~ 25 mm 6 ~ 10 mm²
5 12 ~ 14 mm 4 ~ 6 mm²
6
Communica-
tion cable
Shielded twisted pair
5.3 ~ 7 mm
2 * (0.5 ~ 1.0) mm²
CAT 5E outdoor shielded
network cable
8 * 0.2 mm²
7
Additional
Grounding ca-
ble *
Outdoor single-core cop-
per wire cable
The same as that of the PE wire in
the AC cable
* If local regulations have other requirements for cables, set the cable specification accord-
ing to the local regulations.
Backup Wiring Diagram
For Australia and New Zealand, the neutral cable of GRID side and BACK-UP side must be
connected together according to the wiring rules AS/NZS_3000. Otherwise BACK-UP func-
tion will not work.
6 Electrical Connection User Manual
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