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Introduction

Important Safety Information

Important Safety Information

Before installing and using your Cobra 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.

Nothing 

Comes Close to a Cobra

®

10272-CPI475_PH2.qxd  7/9/07  11:30 AM  Page 1

Summary of Contents for CPI 475

Page 1: ...ervices 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 Questio...

Page 2: ...d by way of a traceable carrier such as United Parcel Service UPS or Priority 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 three to four weeks...

Page 3: ... 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 Inter...

Page 4: ...ly Plug In Directly Dangerous Voltages 3 2 Important Safety Information Introduction Cobra 400 Watt Output Waveform Some very sensitive electronic equipment may not operate satisfactory on square wave or modified sine wave 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...

Page 5: ...llation 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 one inch three cm of clearance around the inverter for proper airflow Make sure that vent...

Page 6: ...ion Mounting Brackets Mounting Hardware 2 Connect cable 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 ends of the cables onto the terminals and tighten the screws to clamp the cables safely 3 Connect cable to your vehicle s cigarette lighter socket NOTE If the inverter is to be used at levels above 150 wa...

Page 7: ...ct 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 400 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 external fuse in...

Page 8: ...ill be consumed 11 10 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 5 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 lo...

Page 9: ...peration Operating Limits Power Output The inverter can deliver 400 watts for about 60 minutes The inverter must cool for 15 minutes before it can resume operation at 400 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 curr...

Page 10: ... 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 Problem Symptom Low output voltage No output voltage No output voltage after prolonged use No output voltage Protect indicator lighted No output voltage No power to inverter Low battery alarm on all the time Possible Causes Overload Low input voltage The...

Page 11: ...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...

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