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DC WIRE GAUGE & FUSING
Inverter Cable
An "Inverter Cable Kit" (positive cable, negative cable, and proper fuse) is
needed to connect the inverter to a battery bank. An 8-gauge wire is also
recommended to connect the inverter's bonding lug to system ground.
Use a 1/0 cable to connect to the inverter. The recommended maximum length
of the inverter cable is 15-ft, and it must be fused within 18 inches of the positive
(+) terminal of the battery.
An inverter cable kit designed to SAE guidelines can be purchased directly from
Sensata – call for options.
Torque the DC connections on the inverter to 50-60 lbs.-in.
Torque the inverter bonding lug to 45 lbs.-in. for 6AWG or 40 lbs.-in. for 8AWG.
Min. Cable and Max. Fusing Guide for 3% Voltage Drop at 100%
Inverter
Full Load (Adc)
Model
12LP15/
190Adc 100% Duty
12LPC15
(at 10.5Vdc)
12LP15/
190Adc 50% Duty
12LPC15
(at 10.5Vdc)
Table 2 - Cable Sizing
NOTE: Using a smaller cable may cause the inverter to go into low battery or
high temperature prematurely.
NOTE: 100% duty rating assumes the inverter is operating at its full rated
output power continuously for at least an hour. The 50% duty rating
assumes that the inverter is operating at its full rated output power for
up to 15 minutes and then operating with a load less than 25% of its
full rating for at least 15 minutes before returning to full power and
repeating. Alternately it can also operate at 50% of its rated output
power continuously. Table assumes operating in an ambient
temperature of 25°C (77°F). For higher ambient temperatures,
additional derating may be required (i.e. may need to use a larger cable
size).
122221 12LPC15 Manual Rev A.docx
Output.
Inverter to Battery Est. Cable Length in Feet
up to 15 feet
@ 25°C (77°F)
1/0 AWG, 350A Fuse
1/0 AWG, 350A Fuse
9
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Troubleshooting
