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Version 1.1 

Nature Power Inverters

True Sinewave Inverter 

Modified Sinewave Inverter 

Owner’s Manual

           

38304          

 

 

38204 

PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE 

 

For safe and optimum performance, the Power Inverter must be used properly. Carefully read and follow 
all instructions and guidelines in this manual and give special attention to the 

CAUTION

 and 

WARNING 

statements. 

Disclaimer

While every precaution has been taken to ensure the accuracy of the contents of this guide, Nature 
Power assumes no responsibility for errors or omissions. Note as well that specifications and 
product functionality may change without notice.

Important

Please be sure to read and save the entire manual before using your 

Nature Power Inverter. 

Misuse may result in damage to the unit and/or cause harm or serious injury. Read manual in its 
entirety before using the unit and save manual for future reference.

Thank you for purchasing the Nature Power Inverter. With our state of the art, easy to use design, this product 
will offer you reliable service for providing AC power for your home, cabin, RV or Trailer. The Nature Power 
Inverter can run many AC-powered appliances when you need AC power anywhere.
This manual will explain how to use this unit safely and effectively. Please read and follow these 
instructions and precautions carefully.

IMPORTANT SAFETY INFORMATION

This section contains important safety information for the Nature Power Inverter. Each time, before using 
the Nature Power Inverter, READ ALL instructions and cautionary markings on or provided with the 
inverter, and all appropriate sections of this guide. The Nature Power Inverter contains no user-serviceable 
parts. See Warranty section for how to handle product issues.

WARNING: 

Fire and/or chemical burn hazard

•   Do not cover or obstruct any air vent openings and/or install in a zero-clearance compartment. 

WARNING: 

Failure to follow these instructions can result in death or injury.

The Nature Power Inverter package includes the items list below.
•    Power Inverter base unit
•    Owner’s manual
•    DC Input cable accessories

WARNING:

 

Nature Power recommends that all wiring be done by a certified technician or electrician 

to ensure adherence to the applicable electrical safety wiring regulations and installation codes. 

Failure to follow these instructions can damage the unit and could also result in personal injury or 
loss of life.

CAUTION:

 Before beginning your power inverter Installation, please consider the following:

•    The Nature Power Inverter base unit should be used or stored in an indoor area away from direct 
     sunlight, heat, moisture or conductive contaminants.
•    When placing the unit, allow a minimum of three inches of space around the unit for optimal 
     ventilation. 

12V Battery Bank:

•   The use of deep cycle battery is highly recommended for power inverter application.
•   For battery size, you need to identify how much you will be using them between charges. Nature 
    Power recommends you purchase as much battery capacity as possible. See more on Battery Run 
    time and Load in Section 4.

Fuse or Circuit Breaker:

•   DC-rated fuse or DC-rated circuit breaker connected along the DC positive line is required.

•  

 

Select a fuse or circuit breaker with a minimum of 60 ADC.

•  

 

Based on the size of the battery bank chosen on the 12V Battery Bank above, determine the 

    overall short circuit current rating of the battery bank from the battery manufacturer. The fuse or 
    circuit breaker chosen has to be able to withstand the short circuit current that may be generated 
    by the battery bank.

Disconnect Switch:

•  

 

Select a Disconnect Switch with the same or higher the rating of the selected fuse or circuit 

    breaker from the above.
•   The Disconnect Switch is used to disconnect the DC power between the power inverter and the 
    battery bank during service, maintenance or trouble shooting.

DC Input Cable:

•  

 

Use of low resistance wire is required for all the DC connections between the inverter and the 

    battery bank.
•  

 

Uses minimum #10 AWG wire with maximum cable length of 5 feet.

Installing the Power Inverter System 
WARNING: 

Electrical Shock Hazard

The unit ‘On/Off’ switch does not disconnect the DC power from the battery. Use the DC Disconnect 
Switch or disconnect the DC input cables connection to disconnect the DC power from the battery 
before working on any circuits connected to the unit. Failure to follow these instructions can result in 
death or serious injury.

CAUTION: 

Reverse the DC Input terminal will damage the unit and cannot be repaired. Damage 

caused by reverse polarity connection is not covered by the warranty.

Power Inverter Installation (38304 only):

•   Choose an appropriate mounting location.
•   For indoor use, the orientation of the unit can be mounted in any direction except with the DC 
    Input panel facing downwards.
•   For RV installation, the unit has to be mounted flat on horizontal surface. 
•   Use mounting template below to mark the positions of the mounting screws.
•   Drill the 4 mounting holes and place the inverter in position and fasten the inverter to the mounting 
    surface.

1.  INTRODUCTION

 

 

2.  PRODUCT DESCRIPTION

3.  INSTALLATION

 

 

Material Prepare for Installation 

Typical Wiring block diagram of the Power Inverter: 

                                      

 

 

 
 
 

 

 
     

Power Inverter

 

38304   

38204

 

Disconnect 

Switch

Fuse or Circuit 

Breaker

12 V Battery Bank

 

 

(Charger system
sold separately is
required to charge
the battery bank
when battery is
discharged)  

 
 

 

Pos +

 

Neg -

 

AC

 

LOADS

 

 

 

•    When working with electrical equipment or lead acid batteries, have someone nearby in case of an 
      emergency.
•    Study and follow all the battery manufacturer’s specific precautions when installing, using and servicing the 
     battery connected to the inverter.
•    Wear eye protection and gloves.
•    Avoid touching your eyes while using this unit.
•    Keep fresh water and soap on hand in the event battery acid comes in contact with eyes. If this occurs, 
     cleanse right away with soap and water for a minimum of 15 minutes and seek medical attention.
•    Batteries produce explosive gases. 

DO NOT 

smoke or have an open spark or fire near the system.

•    Keep unit away from moist or damp areas.
•    Avoid dropping any metal tool or object on the battery. Doing so could create a spark or short circuit which 
      goes through the battery or another electrical tool that may create an explosion. 

WARNING: 

Shock Hazard. Keep away from children!

    

Avoid moisture. Never expose unit to snow, water etc.

•    Unit provides 120 VAC; treat AC output sockets the same as regular wall AC sockets at home.

WARNING: 

Explosion hazard!

•    DO NOT use the Nature Power Inverter in the vicinity of flammable fumes or gases (such as 

     propane tanks or large engines).
•    AVOID covering the ventilation openings. Always operate unit in an open area.

LIMITATIONS ON USE

    

Do not use in connection with life support systems or other medical equipment or devices.

38304

38204

‘Power’ indicator

‘Fault’ indicator

USB

On/Off Switch

Fan opening

DC Input 
Terminals

147.0mm

161.0mm

Understanding the unit features

 

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