9
Nothing
comes close to a Cobra
™
8
English
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
1
⁄
3
more
resistance than copper wire of the same size, plus it is
difficult to make good, low-resistance connections to
aluminum wire.
We recommend two #4 AWG copper cables (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 4 ft. (1.5 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, and trim the ends of the cable to fit the terminals.
To Connect the Cables Between the Inverter
and the Battery:
1. Turn the On/Off Switch on the inverter to the Off
position. If the power source is a DC power supply,
switch it Off as well.
2. On the end of the cable that connects to the inverter,
strip back the insulation about
1
⁄
2
inch (1.25 cm),
exposing the bare copper conductor.
3. Connect cables to the Power Input Terminals on right
side panel of the inverter. The red terminals are positive
(+) and the black terminals are negative (-). Insert the
bare ends of the cables into the terminals and tighten
the screws to clamp the wires safely.
4. Connect cables to the power source:
a. Connect each cable from the Negative (Black)
Terminals of inverter to the Negative Terminal
of the power source. Make a secure connection.
b. Connect each cable from the Positive (Red)
Terminals of the inverter to the Positive Terminal
of the power source (the battery’s main fuse or
the battery selector switch, if you are using one).
Make a secure connection.
Continued...
Connecting Cables
Connecting Cables
Installation
Installation
On/Off Switch to Off
Strip the Insulation
Insert Bare Cables
Connect Cables
