9
Nothing Comes Close to a Cobra
™
8
Connecting Cables (not included)
•
Power wire and wiring are very important to the
performance of the inverter. Because the inverter has a
low voltage, high current input, low resistance wiring is
essential between the battery and inverter. This is so it
can deliver the maximum amount of energy to the load.
Use only copper wire. Aluminum wire has about one-third
more resistance than copper wire of the same size, plus
it is difficult to make good, low-resistance connections to
aluminum wire.
We recommend #4 AWG copper cable (90°C insulation
rating) as the minimum size for connections between
the battery and inverter.
Keep the cable length as short as possible, no more
than four feet (one and a half meters). This will keep the
voltage drop to a minimum.
If the cable has too much voltage drop, the inverter may
shut down when drawing higher currents because voltage
at the inverter may drop below 10 volts. If you must use
longer cables, choose thicker cables, such as #2 AWG.
To connect the cables between the
inverter and the battery:
1. Press the Power Button on the inverter to the off
position. If the power source is a DC power supply,
switch it off as well.
2. Connect cable to the Power Input Terminals on input
end of the inverter. The red terminal is positive (+) and
the black terminal is negative (-).
It is a good idea to check and tighten these screws
from time to time. They can become loose by vibrations
or thermal cycling.
3. Connect cables to the power source:
a. Connect the cable from the Negative (Black)
Terminal of inverter to the Negative Terminal
of the power source. Make a secure connection.
NOTE Please install the supplied plastic protector
boots on the input terminals to prevent a short
circuit.
Connecting Cables Connecting Cables
Intro Operation Customer
Assistance
Warranty
Notes
Notice
Main Icons
Secondary Icons
Caution Warning
Installation
Installation
Intro Operation Customer
Assistance
Warranty
Notes
Notice
Main Icons
Secondary Icons
Caution Warning
Installation
Installation
Connect Cables
Power Button
Intro Operation Customer
Assistance
Warranty
Notes
Notice
Main Icons
Secondary Icons
Caution Warning
Installation
Intro Operation Customer
Assistance
Warranty
Notes
Notice
Main Icons
Secondary Icons
Caution Warning
Installation
CPI1590_MANL.indd 8-9 12/5/14 2:14 PM
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