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Installing the XS400
975-0054-01-01 2–9
DC Cables
For the best load starting performance, the DC cables should be as short
and large as possible. See Table 2-1 for minimum recommended cable
size. Using a smaller cable may cause the inverter to shut down under
heavy load. A larger cable may be used.
DC Fuse and Disconnect or DC Circuit Breaker
If you are using a DC fuse and Disconnect, a maximum 80 amp Class T
fuse shall be used for the DC fuse. A fuse of lower rating can be used, but
it shall not be lower than 60 amp Class T. The Disconnect shall be rated at
least 50 amps.
Alternately, a DC circuit breaker rated 50 amps can be used.
Table 2-1
Minimum Recommended DC Input Cable (copper) — AWG
Cable Length: Battery to Inverter
(each cable)
Minimum Recommended
Cable Size — AWG
0–10 feet (0–3 meters) No. 6
10–15 feet (3–4.5 meters) No. 4
15–30 feet (4.5–9 meters) No. 2
30–40 feet (9–12 meters) No. 0