Cobra Electronics CPI 2550 - Manual (Page 8)

11 Nothing Comes Close to a Cobra ® 10 English
You might observe a spark when you make this connection, since
current can flow to charge capacitors in the inverter.
All power connections to your Cobra inverter must be Positive
to Positive and Negative to Negative.
CAUTION Electrical installations must meet
local and national wiring codes, and should
be performed by a qualified electrician.
CAUTION Do not connect the inverter and another AC
source (such as a generator or utility power)
to the AC wiring at the same time. The inverter
will be damaged if its output is connected to AC
voltage from another source. Damage can even occur
if the inverter is switched off.
CAUTION Do not connect the inverter to an AC branch
circuit that has high-power consumption loads. It will
not operate electric heaters, air conditioners, stoves,
and other electrical
appliances that consume more than 2500 watts.
CAUTION Loose connectors result in excessive voltage
drop and may cause over heated wires
and melted insulation.
CAUTION Reverse polarity connections (positive
to negative) will blow internal fuses in the inverter and
may permanently damage the unit. Such damage is not
covered by the warranty.
CAUTION We recommend a main fuse in the battery’s
positive cable to protect against DC
wiring short circuits (external to the inverter).
The fuse should be as close to the battery as possible.
We recommend a Buss Fuse ANL-250
or equivalent. The specific fuse ampere rating should
be sized to allow operation of all your
DC powered equipment.
CAUTION Remove any jewelry (watch, ring, etc.).
Be careful not to short circuit the battery with any
metallic object (wrench, etc.).
WARNING If you are making a permanent AC connection
to the inverter, make sure that the
AC wiring steps are performed before any DC wiring is
done. (DC hook-up energizes internal components,
regardless of the position of the
On/Off Switch). Working on AC connections in such
a circumstance may result in an electric shock.
WARNING 115 volt AC power is potentially lethal.
Do not work on AC wiring when it is connected to
the inverter (even if it is switched off) unless the
DC power source is physically disconnected from
the inverter. Also, do not work on AC wiring if it
is connected to another AC power source such
as a generator or the utility line.
WARNING You may observe a spark when
making the connection because current can
flow to charge the capacitors in the inverter.
Do not make this connection in the presence
of flammable fumes. Explosion or fire may
result. Thoroughly ventilate the battery compartment
before making this connection.
NOTE If only one power source is used, connect both
cables from the negative terminal of the inverter to the
negative terminal of the power source. Then connect
both cables from the positive terminals of the inverter to
the positive terminal of the power source.
Connecting Cables Connecting Cables
Installation Installation