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Wiring Requirements
ELECTRICAL SHOCK AND FIRE HAZARD
Do not operate the battery charger with damaged or substandard
wiring. Make sure that all wiring is in good condition and is not
undersized. See notes below.
Failure to follow these instructions will result in death or serious
injury.
NOTES:
Wiring and fuse sizes are governed by electrical codes and
standards. Different requirements apply in different countries and to
different types of installations, for example, truck, home or RV. It is
the responsibility of the installer to ensure that each installation
complies with all applicable codes and standards.
Ensure that wires and fuses or breaker disconnects are correctly
sized. Maximum continuous DC current available from the charger
may be an additional 6–10% above the nominal current rating of
the charger.
975-1023-01-01
DANGER
DC (Battery) Wiring
The following tables show some typical wire sizes for various
cable length runs, based on 3% voltage drop on DC cables, 75 °C
(167 °F) rated wire with wiring being inside the engine
compartment – assumed ambient of 50 °C (122 °F).
Table 1 Battery Cable Examples
Wire Length
(max length one way)
feet
meters
5 ft
1.5 m
10 ft
3 m
15 ft
4.5 m
NOTE: Extending the DC cable length beyond 7.5 feet will affect
charging effectiveness as a result of a voltage drop.
Preparing For Installation
Wire Size (AWG
and mm
AC 6012 Battery
AC 4012 Battery
Charger
Charger
No. 8,
No. 8,
2
2
(8.4 mm
)
(8.4 mm
)
2
No. 6, (13.3 mm
)
No. 8,
2
(8.4 mm
)
2
No. 4, (21.2 mm
)
No. 6
2
(13.3 mm
2
)
)
17
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