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Cobra Marine CPI M 2200 Operating Instructions Manual

Made by: Cobra Marine
Type: Operating Instructions
Category: Inverter
Pages: 16
Size: 0.93 MB

 

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A1 English

Our Thanks To You

Introduction

Thank you for purchasing the CobraMarine

CPI M2200 Power Inverter.

Properly used, this product will give you many years of reliable service. 

How Your CobraMarine

Power Inverter Works

The CobraMarine

Power Inverter is an electronic product that has been designed and

built to take low voltage DC (Direct Current) power from your boat, RV, automobile or
other low voltage power supplies and CONVERT it to standard 115 volt AC (Alternating
Current) power like the current you have in your home. This conversion process
thereby allows you to use many of your household appliances and electronic products
in automobiles, RVs, boats, tractors, trucks and virtually anywhere else.

Customer Assistance 

Should you encounter any problems with this product, or not understand its many
features, please refer to this owner’s manual. If you require further assistance after
reading this manual, Cobra

®

Electronics offers the following customer assistance services:

For Assistance In the U.S.A. 

Automated Help Desk English only. 
24 hours a day, 7 days a week 773-889-3087 (phone). 

Customer Assistance Operators English and Spanish. 
8:00 a.m. to 6:00 p.m. CT, Monday through Friday (except holidays) 
773-889-3087 (phone). 

Questions English and Spanish.
Faxes can be received at 773-622-2269 (fax). 

Technical Assistance English only. 
www.cobra.com (on-line: Frequently Asked Questions). 
English and Spanish. productinfo@cobra.com (e-mail).

For Assistance Outside the U.S.A. 

Contact Your Local Dealer

Operating Instructions

Nothing Comes Close To A Cobra

®

English

2200 WATT MARINE POWER INVERTER

CPI M2200

Printed in China 

Part No. 480-078-P

© 2003 Cobra

®

Electronics Corporation

6500 West Cortland Street

Chicago, Illinois 60707 USA

www.cobra.com

Customer Assistance

 


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A2 English

A3 English

Introduction

Our Thanks to You  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Customer Assistance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Controls and Indicators  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Product Features  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Important Safety Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick Evaluation Before Installation . . . . . . . . . . . . . . . . . . . . . . . . .4

Installation

Installation Requirements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting Cables  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power Consumption  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ground Wiring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Remote On/Off Switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Operation

Turning Your Inverter On or Off  . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Remote On/Off Switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
GFCI Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Power and Protection Indicators  . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operating Limits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting Guide  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Warranty

Warranty  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Customer Assistance

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Product Service  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Accessories and Order Form  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Controls /Indicators and Product Features

Introduction

Table of Contents

Introduction

Features

• GFCI Outlet with 

Two AC Receptacles

• Conformal Coating*

• Tinned Wiring*

• Volts and Amps Meters

• Remote On/Off Operation

• Automatic Thermal

Protection/Shutdown

• Reverse Polarity

Protection

• Low Battery Alarm

• Low Battery Shutdown

Positive Battery

Cable Terminal

(Red)

Cooling Fans

Negative Battery
Cable Terminal
(Black)

Ground Terminal

GFCI Outlet

Remote On/Off 

Switch Jack

Overload & Over 
Temp. Indicators

On/Off Power
Switch

Volts & Amps Meters

Reset Button (Red)

Status Indicator

Test Button (Black)

*

To help resist corrosion 

 


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Important Safety Information

Before installing and using your CobraMarine

Power Inverter, please read 

these general precautions and warnings.

Caution and Warning Statements

To make the most of this inverter, it must be installed and used properly. 
Please read the installation and operating instructions carefully before 
installing and using it. Special attention must be paid to the CAUTION and 
WARNING statements in the manual. 

CAUTION Statements specify conditions which could cause damage to the 
unit or other equipment. 

WARNING Statements identify conditions that could result in personal 
injury or loss of life.

General Precautions

1. Never install the inverter in a boat’s engine compartment where gas and battery

fumes are present.

2. Do not operate the inverter if it has been dropped or damaged in any way.

3. Do not open the inverter; it contains no user-serviceable parts. Attempting to

service unit could cause electrical shock.

NOTE Internal components remain charged after all power is disconnected.

4. Do not expose the inverter to rain, snow, bilge water or spray.

5. Do not obstruct the ventilation openings.

6. Do not install the inverter in zero-clearance compartment.

CAUTION This inverter should be used in negative ground applications only.

Important Safety Information

Introduction

Continued...

 


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Plug In Directly

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English

WARNING  Power inverters contain components that may produce arcs 
or sparks. To prevent fire or explosion, do not install the inverter in areas 
or compartments containing batteries or flammable materials or in locations 
that require ignition-protected equipment.

WARNING To reduce the risk of fire, do not cover or obstruct the ventilation
openings. Do not install inverter in zero-clearance compartment.

Caution: Rechargeable Appliances

Certain chargers for small nickel cadmium batteries can be damaged if connected to
the CobraMarine

M2200 Power Inverter. Two (2) particular types of equipment are

prone to this problem: 

1. Small battery-operated appliances such as flashlights, 

razors, and night lights that can be plugged directly into 
an AC receptacle to recharge.

2. Certain battery chargers for battery packs used in hand 

power tools. These chargers have a WARNING label stating 
that dangerous voltages are present at the battery terminals.

This problem does not occur with the vast majority of battery-operated equipment.
Most use a separate charger or transformer that is plugged into the AC receptacle 
and produces a low voltage output. If the label on the AC adapter or charger states 
that it produces a low voltage AC or DC output (less than 30 volts), the inverter 
will have no problem powering the adapter safely.

CobraMarine

M2200 Output Waveform

The output waveform is referred to as “square wave” or “modified sine wave.” It is a
stepped waveform designed to have characteristics similar to the sine wave shape of
utility power. A waveform of this nature is suitable for most AC loads (including linear
and switching power suppliers used in electronic equipment, transformers and motors).
Some very sensitive electronic equipment may not operate satisfactorily on “square 
wave” or “modified sine wave.”

Ground Fault Circuit Interrupter (GFCI) Outlet

Test the GFCI periodically to make sure it is operating properly 
(see page 16 for details).

Important Safety Information

Introduction

Important Safety Information

Introduction

Dangerous Voltages

 


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Quick Evaluation Before Installation

This section provides you with basic information about the inverter and how 
to check its performance before installation.

Be Sure to Have on Hand:

A 12 volt DC power source (such as a vehicle battery).

The power source must provide between 11 and 15 volts 
DC and be able to supply enough current to run the test
load. As a rough guide, divide the wattage of the test load 
by 10 to get the current (in amperes) the power source 
must deliver.

A set of cables to connect the power source to the inverter (not included).

The cables must be as short and thick as possible in order to reduce the voltage 
drop between the power source and the inverter when drawing current from the
power source. 

If the cable suffers an excessive voltage drop, the inverter may shut down when
drawing higher currents because the voltage at the inverter dropped below 10 volts. 

#4 AWG stranded copper cable is recommended. It should be no longer than 
1.5 meters (4 feet). 

The end of the cable that connects to the inverter must have its insulation stripped 
off for about 

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2

inch (1.25 cm) back from the end, exposing the bare copper. 

The other end of the cable, which connects to the power source, must be
terminated with a lug or other connector that provides a secure, low resistance
connection. 

For example, if the power source is a battery, the cable must be terminated 
with a battery terminal that clamps to the post on the battery.

A test load that can be plugged into the AC receptacle on the inverter for short 
term testing at a low power level. The following cables are recommended for 
testing low power level test loads only.

Test Load Power 

Minimum Cable Size

100w

#16 AWG copper

250w

#12 AWG copper

500w

#8  AWG copper

Quick Evaluation Before Installation

Introduction

Quick Evaluation Before Installation

Introduction

To Check Your Inverter’s Performance Before Installation:

1. Turn the inverter Off (see page 15 for details). 

If the power source is a DC power supply, 
switch it Off as well.

2. Connect cables to Power Input Terminals 

(see page 8 for details).

3. Connect cables to Power Source 

(see page 8 for details).

4. Check to make sure all connections are secure.

5. Turn the inverter On. If the power source is 

a DC power supply, switch it On first.

6. Plug in the test load.

The inverter should supply power to the load. 
If the inverter is not working properly, refer to 
the Troubleshooting Guide on page 21 or Power 
and Protection Indicators section on page 18.

7. Test the GFCI Outlet (see page 16 for details).

Test Load

On/Off Switch to Off

Connect Terminals

Connect Power Source

On/Off Switch to On

Connect Test Load

Test GFCI Outlet

Power Supply

 


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Mounting

Installation

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Installation Requirements

The inverter must be installed in an area that meets all of the following requirements:

A. Dry

Do not place in an area where water can drip or splash on the inverter.

B. Cool

Ambient air temperature should be between 30°F and 105°F (0°C and 40°C). 
The cooler the better.

C. Ventilate

Allow at least 1 inch (3 cm) of clearance around the inverter for proper airflow. 
Make sure that ventilation openings on the ends of the unit are not obstructed.

D. Safe

Do not install the inverter in the same compartment as a battery or in any
compartment that contains flammable liquids such as gasoline.

E. Close to Battery

Install unit as close to battery as possible (without being in the same compartment)
to minimize the length of cable required to connect the inverter to the battery. It is
better and cheaper to run longer AC wires than longer DC wires (cables).

CAUTION To avoid fire, do not cover or obstruct ventilation openings. Do 
not install inverter in a zero-clearance compartment. Overheating may result.

CAUTION The inverter must only be connected to batteries with a nominal 
output voltage of 12 volts. It will not work with a 6 volt battery, and will be
damaged if it is connected to a 16 volt battery. 

WARNING This unit contains components which can produce arcs or sparks.
To prevent fire or explosion, do not install in compartments containing a 
battery or flammable materials, or in a location which requires ignition
protected equipment.

WARNING This unit is suitable for installation in negative ground applications
only. Do not attempt to install to a positive ground application.

Mounting

To Mount Your Inverter:

1. Place the inverter on a flat surface with the mounting bracket against 

the mounting surface.

2. Mount to secure surface using mounting hardware that is corrosion 

resistant (not included).

The inverter can be mounted horizontally or vertically.

Installation Requirements

Installation

Mounting Brackets

Mounting Hardware

 


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Installation

Connecting Cables

Installation

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3. Connect cables to the Power Input Terminals on right side panel of the inverter. The

red terminal is positive (+) and the black terminal is 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) Terminal of inverter to the 

Negative Terminal of the power source. Make a secure connection. 

b. Connect each cable from the Positive (Red) Terminal 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.

You might observe a spark when you make this connection, 
since current can flow to charge capacitors in the inverter. 

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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 

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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 4 feet (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 

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2

inch (1.25 cm), exposing the bare copper conductor.

Connecting Cables

Turn On/Off Switch to Off

Strip the Insulation

Insert Bare Cables

Continued...

Connect Cables

 


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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.

10 English

All power connections to your CobraMarine

Power 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 2200 watts.

CAUTION Loose connectors result in excessive voltage drop and may cause 
overheated 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.).

Installation

Connecting Cables

Installation

Connecting Cables

 


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Ground Wiring

There is a screw on the rear panel for Chassis Ground. This is to connect the chassis 
of the inverter to ground.

The Chassis Ground Screw must be connected to a grounding point, which will vary
depending on where the unit is installed. Use a #8 AWG copper wire (preferably with
green/yellow insulation) to connect the chassis ground screw to the grounding point.

In a Vehicle:  
Connect the Chassis Ground to the chassis of the vehicle. 

In a Boat:
Connect to the Boat Grounding System

In a Fixed Location:
Connect the Chassis Ground Screw to earth ground by connecting 
to a ground rod (a metal rod pounded into the earth) or other proper 
service entrance ground.

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Power Consumption

For each piece of equipment you will be operating from the inverter, you must
determine the battery’s reserve capacity (how long the battery can deliver a 
specific amount of current — in automotive batteries, usually 25 amperes) or 
ampere-hour capacity (a measure of how many amperes a battery can deliver 
for a specified length of time). 

Example – Reserve capacity: a battery with a reserve capacity of 180 minutes 
can deliver 25 amperes for 180 minutes before it is completely discharged.

Example – Ampere-hour capacity: a battery with an ampere-hour capacity of 
100 ampere-hours can deliver 5 amperes for 20 hours before it is completely
discharged.

To Determine the Battery Ampere-Hour Capacity You Require:

1. Determine how many watts each piece of equipment consumes. This can normally

be found on the product label. If only the current draw is given, multiply the current
draw by 115 to get the watt consumption.

2. Estimate the time (in hours) that each piece of equipment will be running between

battery charging cycles.

3. Calculate the total watt-hours of energy consumption (power x operating time) using

the average power consumption and the total estimated running time (in hours).
Power x Operating Time = Watt-Hours.

4. Divide the watt-hours by ten (10) to determine how many power supply’s (12 volt)

ampere-hours will be consumed.

Installation

Power Consumption

Installation

Ground Wiring

300 Watts x 15 minutes 
= 75 Watt-Hours

115 Watts x 3 hours
= 345 Watt-Hours

Blender

TV/VCR (up to 25")

100 Watts x 2 hours
= 200 Watt-Hours

Laptop

Chassis Ground

 


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Turning Your Inverter On or Off

Be sure to have your power inverter properly installed before attempting to 
turn the unit On (see “Installation” page 6).

To Turn the Power Inverter On:

1. If a DC power supply is being used as the power source, switch it On. 

2. On the left side panel, switch the On/Off Switch to On.

The inverter is now ready to deliver AC power to your loads. If several loads 
are to be operated by the inverter, turn them On separately, after the inverter 
has been turned On. This will ensure that the inverter does not have to deliver 
the starting currents required for all the loads at once.

To Turn the Power Inverter Off:

1. On the left side panel, switch the On/Off Switch to Off.

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Remote On/Off Switch

The Remote On/Off Switch allows you to turn On or Off the CobraMarine

Power

Inverters from a convenient location — up to 20 feet (6 meters) away — while the
inverter is mounted out of reach and sight.

To Install Remote On/Off Switch:

1. Select a location that is convenient for operation (and 

where the Remote On/Off Switch assembly and cable 
does not interfere with the driver or a passenger). 
Be sure there is adequate clearance behind the panel 
before drilling or cutting.

2. Cut out the mounting template included with this manual 

on a separate card.

3. Position the template on the wall/surface where you want 

to install the Remote On/Off Switch.

4. Mark the location of the two screw holes and the square 

to be cut out for the switch board.

5. Create two pilot holes for the screws.

6. Cut out the square from the template to accommodate 

the switch board. 

If cutting a square on the wall is not desirable, use bushings
(not included) to raise the switch assembly so that switch 
board clears the wall.

7. Fasten the switch plate using the two screws (included).

8. Connect the cable (RJ-11 connector) to the inverter’s 

remote jack.

If more than 20 feet of cable is required, use a 1-to-1 female
connector and a 4-wire conductor, phone extension cord with 
RJ-11 male connectors on each end to extend the cable. 
50 feet of cable is maximum recommended.

Remote On/Off Switch

Installation

Cut Out Template

Mark Location

Drill Pilot Holes

Cut Out Square

Fasten Switch Plate

Connect Cable

Power On or Off

Operation

On/Off Switch to On

On/Off Switch to Off

Continued...

 


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To Test the GFCI Outlet:

1. Turn the inverter On (see page 15 for details).

2. Plug a test lamp into the outlet.

3. On the GFCI Outlet, press the Test Button.

The Reset Button should pop out and power to the lamp should turn Off. 

If the lamp remains On, or if the Reset Button does not pop out, the unit is 
defective. Return the inverter to the place of purchase for replacement or service.

4. On the GFCI Outlet, push the Reset Button to return to regular operation.

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NOTE The On/Off Switch turns the control circuit in the inverter On and Off. 
It does not disconnect power from the inverter.

When the switch is in the Off position, the inverter draws no current 
from battery. When it’s in the On position, but no power is being supplied 
to the load, the inverter draws less than 500 milliamperes from the battery. 
This is low current draw. It would take more than a week to discharge a 
100 ampere-hour battery at this rate depending on the age of the battery. 

Remote On/Off Switch

Remote On/Off Switch can be connected to the Remote Jack allowing you to turn
the inverter On or Off from a convenient location when the inverter is installed in an
out-of-reach location. Be sure to have your power inverter and Remote On/Off Switch
properly installed before attempting to turn the unit On (see “Installation” page 6). 

To Turn the Power Inverter On or Off:

1. On the left side panel of the inverter, switch the 

On/Off Switch to On.

2. Press the Remote On/Off Switch button to toggle 

On or Off. The remote On/Off Switch power indication 
light will remain lit when power is On. 

The inverter is now ready to deliver AC power to your loads. 
If several loads are to be operated by the inverter, turn them 
On separately, after the inverter has been turned On. This will
ensure that the inverter does not have to deliver the starting
currents required for all the loads at once.

Ground Fault Circuit Interrupter (GFCI) Outlet

The AC outlet on your CobraMarine

Power Inverter is a Ground Fault Circuit Interrupter

(GFCI). This protects you against hazardous electrical shock that could be caused by
dampness, faulty mechanism, worn cables, water spray, etc. 

Test the GFCI periodically to make sure it is operating properly.

Remote On/Off Switch

GFCI Test

Test Button

Test Load

On/Off Switch to On

On/Off Switch to On

Indicator Light

Reset Button

Operation

Operation

 


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Amps Meter and Overload Indicator

Amps Meter:
The amps meter indicates the current drawn from the battery. It will not indicate 
the current drawn by other loads also connected to the battery. For long term
operation, the amps meter should remain in the green sections of the bar graph.

Current Overload:
The meter will enter the red section of the bar graph, the alarm will sound, the
overload indicator light will turn On, then the inverter will shutdown. The inverter 
will continue to check for appropriate current levels while trying to restart the load.

NOTE A momentary sound of the internal alarm and/or flash 
of the indicators or meters is normal at start up.

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18 English

Power and Protection Indicators

The Power and Protection Indicators include, along with an audible alarm, an over
temperature indicator, an amps meter, a volts meter and an overload indicator.

Over Temperature Indicator

Temperature Overload:
The indicator light will turn On, then the inverter will shutdown. The inverter will
continue to check for appropriate temperature levels while trying to restart the load.

Volts Meter

The volts meter indicates the battery voltage level input.

For long term operation, the volts meter should remain in the green sections 
of the bar graph. If the meter enters the red sections of the bar graph, the alarm 
will sound and inverter will shutdown. The inverter will continue to check for 
appropriate voltage levels while trying to restart the load.

Power and Protection Indicators

Operation

Power and Protection Indicators

Operation

Temp. Overload

Volts Meter

Current Overload

Amps Meter

 


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20 English

Operating Limits

Power Output

The inverter can deliver 2200 watts for about 60 minutes. The inverter must cool 
for 15 minutes before it can resume operation at 2200 watts. Note: The wattage 
rating applies to resistive loads.

The inverter will operate most AC loads within its power rating. Some induction 
motors used in freezers, pumps, and other motor-operated equipment require very
high surge currents to start. The inverter may not be able to start some of these
motors even though their rated current draw is within the inverter’s limits. The 
inverter will normally start single phase induction motors rated at 

1

2

HP or less.

Input Voltage

The inverter will operate from input voltage ranging from 10 volts to 15 volts.
Optimum performance will occur when the voltage is between 12 volts and 
14 volts. If the voltage drops below 10.5V+/-0.3V, an audible low battery 
warning will sound. The inverter will shut down if the input voltage drops 
below 9.5V+/-0.3V. This protects the battery from being over-discharged. 
It will restart when the input voltage exceeds 12V+/-0.3V.

The inverter will also shut down if the input voltage exceeds 15.75V+/-0.75V. 
This protects the inverter against excessive input voltage. Although the inverter 
has protection against over-voltage, it may still be damaged if the input voltage 
was to exceed 16 volts.

Operating Limits

Operation

Troubleshooting Guide

Operation

Troubleshooting Guide

Problem/Symptom

Low output voltage 

No output voltage 

No output voltage after
prolonged use

No output voltage, 
“Protect” indicator
lighted

No output voltage

No output voltage

Low battery alarm 
on all the time

Possible Causes

Overload 

Low input voltage

Thermal shutdown

High input voltage

Short circuit

Inverter switched Off

No power to inverter

Reverse DC polarity

Poor DC wiring

Poor battery condition

Solution

Reduce the load.

Recharge battery. Check 
connections and cable.

Allow inverter to cool Off.

Reduce load, continuous operation 
input current required.

Improve ventilation; Make sure ventilation
openings in the inverter are not obstructed.

Reduce ambient temperature.

Make sure the inverter is connected 
to 12V battery.

Check regulation of charging system.

Check load for proper operation.

Turn inverter On.

Check wiring to inverter.

Observe correct polarity.

Check connections.

Make sure battery is fully charged.

 


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23

Nothing comes close to a Cobra

®

Limited 1-Year Warranty 

For Products Purchased In the U.S.A.

Cobra

®

Electronics Corporation warrants that its CobraMarine

Power Inverter, and 

the component parts thereof, will be free of defects in workmanship and materials 
for a period of one (1) year from the date of first consumer purchase. This warranty
may be enforced by the first consumer purchaser, provided that the product is utilized
within the U.S.A. 

Cobra

®

will, without charge, repair or replace, at its option, defective power inverters,

products or component parts upon delivery to the Cobra

®

Factory Service department,

accompanied by proof of the date of first consumer purchase, such as a duplicated
copy of a sales receipt. 

You must pay any initial shipping charges required to ship the product for warranty
service, but the return charges will be at Cobra

®

’s expense, if the product is repaired 

or replaced under warranty. This warranty gives you specific legal rights, and you 
may also have other rights which may vary from state to state.

Exclusions: This limited warranty does not apply: 1) To any product damaged by accident;
2) In the event of misuse or abuse of the product or as a result of unauthorized alterations
or repairs; 3) If the serial number has been altered, defaced, or removed; 4) If the owner
of the product resides outside the U.S.A.

All implied warranties, including warranties of merchantability and fitness for a
particular purpose are limited in duration to the length of this warranty. Cobra

®

shall

not be liable for any incidental, consequential or other damages; including, without
limitation, to damages resulting from loss of use or cost of installation. 

Some states do not allow limitations on how long an implied warranty lasts and/or 
do not allow the exclusion or limitation of incidental or consequential damages, so 
the above limitations may not apply to you.

For Products Purchased Outside the U.S.A.

Please contact your local dealer for warranty information.

22 English

Specifications

Continuous output power (1 hour) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2200w

Surge rating (0.1 second) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4400w

Peak efficiency (12V – 

1

2

load)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 88%

Efficiency (full load, 12V)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 83%

No load current draw  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.5A (12.6V)

Output waveform (resistive load)  . . . . . . . . . . . . . . . . . . . . . . . . . . . Modified sine wave

Output frequency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58HZ – 62HZ

Output voltage  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109V – 120V

Input voltage  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4VDC – 14.4VDC

Alarm voltage (unload)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10.2V – 10.8V

Shutdown voltage (unload)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2V – 9.8V

Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C – 40°C 

(32°F – 104°F)

Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C – 85°C 

(-40°F – 185°F)

Protection  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Overload, short-circuit, overtemp,

reverse polarity, under/over voltage

Notes  

All protection is automatically recovered.  

To protect the battery, if the unit needs to be restarted after low voltage protection, 
the voltage of DC input should be above 12V.  

To extend the life of the fan, it will stop when there is no load. The speed of the fan
increases as the load increases.  

The unit is completely insulated in input and output for added safety.

Specifications

Operation

Warranty

Warranty

 


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25

Nothing comes close to a Cobra

®

4. Pack power inverter securely to prevent damage in transit. If possible, 

use the original packing material.

5. Ship prepaid and insured by way of a traceable carrier such as United 

Parcel Service (UPS) or First Class Mail to avoid loss in transit to: 

Cobra

®

Factory Service 

Cobra

®

Electronics Corporation 

6500 West Cortland Street
Chicago, Illinois 60707 USA.

6. If the power inverter is in warranty, upon receipt of your power inverter, 

it will either be repaired or exchanged depending on the model. Please 
allow approximately 3 – 4 weeks before contacting Cobra

®

for status. 

If the power inverter is out of warranty, a letter will automatically be 
sent informing you of the repair charge or replacement charge. 

If you have any questions, please call 773-889-3087 for assistance.

24 English

Maintenance

Very little maintenance is required to keep the inverter operating properly. The exterior
of the unit should be cleaned periodically with a damp cloth to prevent accumulation of
dust and dirt. At the same time, tighten the screws on the DC input terminals. Be sure
vents and fans are free of dust or debris.

Product Service

If you have any questions about operation or installing your new CobraMarine

product, or if you are missing parts…

Please call Cobra

®

first!  DO NOT RETURN THIS PRODUCT TO THE STORE! 

See customer assistance on page A1.

If your product should require factory service, please call Cobra

®

first before sending

your power inverter. This will ensure the fastest turn-around time on your repair. 
You may be asked to send your power inverter to the Cobra

®

factory. 

It will be necessary to furnish the following to have the product serviced and returned.

1. For Warranty Repair include some form of proof-of-purchase, such as a mechanical

reproduction or carbon copy of a sales receipt. If you send 
the original receipt, it cannot be returned.

2. Send the entire product.

3. Enclose a description of what is happening with the power inverter. Include 

a typed or clearly printed name and address of where the power inverter is 
to be returned.

Maintenance and Product Service

Product Service

Customer Assistance

Customer Assistance

 


background image

26 English

Accessories and Order Form

Customer Assistance

Optional Accessories

You can find quality Cobra

®

products and accessories at your local Cobra

®

dealer, 

or in the U.S.A., you can order directly from Cobra

®

.

Ordering From U.S.A.

Call 773-889-3087 for pricing or visit www.cobra.com.

For credit card orders, complete and return this order form to fax number 773-622-2269.

Or call 773-889-3087 (Press 1 from the main menu) 8:00 a.m. to 6:00 p.m. CT, 

Monday through Friday.

Make check or money order payable to:  Cobra

®

Electronics, Attn: Accessories Dept.

6500 West Cortland Street, Chicago, IL 60707 USA

To order online, please visit our website: www.cobra.com

The Cobra

®

line of quality
products includes:

CB Radios 
microTALK

®

Radios

Radar/Laser Detectors
Safety Alert

®

Traffic

Warning Systems
Accessories 
GPS (Global 
Positioning System) 
HighGear

Accessories

Name

Address (No P.O. Boxes)

City

State/Province

Zip

Country

Telephone

Credit Card Number            Type:  

Visa   

Mastercard   

Discover

Exp. Date

Customer Signature

Item #

U.S. Cost Each

Qty

Amount

U.S. Subtotal

(Tax if Applicable)

Shipping/Handling

Total

Amount Shipping/Handling*

$10.00 or less . . . . . $3.00

$10.01-$25.00 . . . . . $5.50

$25.01-$50.00 . . . . . $7.50

$50.01-$90.00 . . . . $10.50

$90.01-$130.00 . . . $13.50

$130.01-$200.00 . . $16.50

$200.01 plus . . . . 10% off

. . . . . . . . . . . . . . purchase

Tax Table

Ohio, Wisconsin add 5%
Indiana, Michigan add 6%

California add 7.25%

Illinois add 8.75% 

*For AK, HI and PR add

additional $26.95 for FedEx
Next Day or $10.95 for
FedEx 2nd Day. Excludes
weekend and holiday
shipments.

Please allow 2-3 weeks 
for delivery in the U.S. 
Prices subject to change
without notice.