NPower 4573000 User manual

TO REDUCE THE RISK OF INJURY, USER MUST READ AND
UNDERSTAND THIS INSTRUCTIONAL MANUAL. THIS MANUAL CONTAINS
IMPORTANT INFORMATION REGARDING THE OPERATION AND
WARRANTY OF THIS PRODUCT. PLEASE RETAIN FOR FUTURE
REFERENCE.
OWNER’S MANUAL
3000W Power Inverter
Model number-4573000

CONTENTS
1. Introduction..............................................................................................
2. Important Safety Information...................................................................
3. Protective Features................................................................................
4. Features..................................................................................................
5. Installation...............................................................................................
6. Operating Instructions.............................................................................
7. Troubleshooting......................................................................................
8. Specifications..........................................................................................
9. Warranty.................................................................................................
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2.
Thank you for purchasing the NPower Digital Power Inverter, a high
performance solution for using household power while on the road. Connected
to the 12 V output in your vehicle, the inverter efficiently and reliably supplies
110 V/60 Hz AC power with 2500 W continuous output power for a wide variety
of loads, such as all kinds of jacklights, TV sets, audio/video systems and tools
with power consumption under 3000 W. The inverter is designed and meet UL
standard and has cETL certification. It is ideal for operating household
appliances on your car, truck, RV and boat.
The inverter has the safety features such as over input voltage shut off, low
input voltage shut off, low input voltage alarm, low voltage turn-off resume, over
heating shut off, overload shut off, short circuit protection.The unit is not
designed to be waterproof. It functions in ambient temperatures of 0°C- 40°C.
1. Introduction
2. Important Safety Information
CAUTION: Instructions provide information that could damage your
inverter or equipment connected to it!
WARNING: Instructions provide information on conditions that
could result in personal injury or loss of life!
Warning！Shock hazard! Keep away from children!
Warning！The inverter produces the same potentially lethal AC power as normal
household outlets. It is suggested that you treat it as normal AC outlet.
For safe and optimum performance, the inverter must be installed and used
properly. Carefully read and follow the guidelines in this guide and give special
attention to the CAUTION and WARNING statements.

3.
Warning！Do not operate the unit near flammable fumes or gases such as the cabin of
a gasoline power boat, or near propane tanks.
Warning！Do not operate the unit in an enclosed area that contains automotive type
lead-acid batteries. This type of battery emits explosive hydrogen gas which
can be ignited by sparks.
Warning！Always make all AC connections before making DC connections or the
components built into the inverter can become energized producing an
electrical shock hazard. Never work on the AC wiring without first physically
disconnecting the DC connections.
Warning！If connected with loads of over 1000 W, two sets of same size wirings must
be connected to the same battery or the connected battery kit. And it may
damage the inverter if using one set of wiring only or connecting two sets of
wirings to different batteries separately!
Caution！Do not connect the unit to live AC power circuits or there would be damage to
the inverter. Do not connect any AC device which has its neutral conductor
connected to ground to the unit.
Warning！The case to the unit may become very warm under high power
operationreaching 104°F(40°C). Be sure that there is at least 2 ＂(5cm) of
unobstructed air space around the entire surface of the inverter at all times.
During use, do not place materials that could be damaged by heat near the
unit.

4.
3. Protective Features
Caution！Connect the unit to batteries with a normal output of 12V DC only. As 6V
batteries voltage is too low, and a 24V battery voltage is too high which will
damage the unit.
Additional Safety Guidelines！Do not insert any foreign objects into the unit outlets, vents or fan
openings.
Do not expose the unit to rain, water or any other liquid.
Do not connect the unit to any utility power distribution systems or
branch circuits.
Do not use the inverter in temperatures over 104°F(40°C) or under
32°F(0°C).
Failure to follow these safety guidelines will result in personal injury
and/or the damage to the unit. It may also void the warranty.
Caution！Some chargers for small nickel-cadmium batteries can be damaged if
connected to the unit. Do not use the unit on the following items:
Small battery-operated appliances such as flashlights, razors and
nightlights those can be plugged directly into an AC outlet to recharge.
Certain battery chargers for battery packs used in hand power tools.
These chargers will have a warning label indicating that dangerous
voltages are present at the battery terminals.
Over-input Voltage Shut off
When the 12 V DC power supply voltage exceeds 15.5 ± 0.5 V, the inverter will
automatically shut down, and the digital display showing “OUP”.
Low-input Voltage Shut off
When the 12 V DC power supply voltage drops below 10.5 ± 0.3 V, the inverter

5.
automatically shut down, and the digital display showing “LUP”.
Low-input Voltage Alarm
When the 12 V DC power supply voltage drops below 11 ± 0.3 V, an audible
alarm will sound, and the digital display showing “LUP”.
Over-heating Shut Off
When the internal temperature exceeds the regulated temperature due to the
increase of ambient temperature, the inverter will automatically shut down,
and the digital display showing “LCP”.
When the internal temperature drops below the surrounding air temperature,
the inverter will automatically return to normal operation.
Overload Shut Off
When the starting power exceeds the rated power, the inverter will
automatically shut down, and the digital display showing “OLP”.
When in over current protection mode, the inverter can’t automatically restore
normal operation: reset to normal operation by using manual switch.
Short-circuit Protection
This inverter is equipped with multiple internal fuses. When it is in short circuit
state, the unit will switch to protective mode, and the digital display showing
“OPP”.

6.
1. Red LED—Indicates that the consumption of the loads is under 1000 W, and
the digigal display showing output power loads in watts.
2.Yellow LED—Indicates that the consumption of the loads which the inverter
receiving power to is over 1000 W, and the digigal display showing output
power loads in kilowatts.
3. Green LED— Indicates the digital display is showing DC input voltage.
4. USB Port—Powers and charges USB-enabled devices.
5. Remote Switch Port—Use to connect the remote ON/OFF switch via a
communication cable.(remote control switch is not included.)
6. Power Switch Button— Turn the inverter ON or OFF.
7. Digital Display— Shows input voltage (in volts), output power (in kilowatts
and watts), and error code information. The allowed power tolerance is 15%
(with loads of over 300 W), and the allowed voltage tolerance is +/- 0.2 V (no
load).
8. Cooling Fan and Ventilation Openings— The high-speed cooling fan
protects the inverter from over-heating. Ventilation openings should be kept
clear!
Figure 1: Digital Power Inverter Front Panel
4. Features

5. Installation
10. Negative (-) DC terminal—Accepts ring connectors appropriate to the
cable size being used.
11. Positive (+) DC terminal— Accepts ring connectors appropriate to the
cable size being used.
Figure 2: Digital Power Inverter View Panel
The unit must be operated in an area that meets the following requirements in
order to operate safely and provide optimum performance:
Dry Don’t allow water or other liquids to drop or splash on the unit.
Cool Ambient air temperature should be between 32°F and104°F
(0°C~40°C)（the cooler the better within this range）.
Leave at least 2” (5cm) of clearance around the unit for airflow.
Ensure that the ventilation openings are not obstructed.
Description
7.

Safe
Do not operate the unit in the same compartment as
batteries or in any compartment capable of storing
flammable liquids like gasoline.
Clean
Do not operate the unit in an area that is prone to dirt, dust
or debris. Especially important if used in a work
environment.
Your Digital Power Inverter supplies 3000 W of max continuous power with
5000 W of surge power. When you turn on an appliance or a tool that operates
using a motor or tubes, it requires an initial surge of power to start up. This
surge of power is referred to as the “starting load” or “peak load”. Once started,
the tool or appliance requires less power to continue to operate. This is referred
to as the “continuous load” in terms of power requirements. You will need to
determine how much power your tool or appliance requires to start up and its
continued running power requirements.
The inverter should be connected to your vehicle’s 12 V power supply with the
DC cables. We recommend that the equipment or appliance switch be in the
“OFF” position prior to plugging into the AC receptacle of the inverter.
Warning！Shock hazard! Keep away from children!
Please be sure to remove metal jewelry, such as rings, bracelets and watches
etc. to avoid accidents!
Connecting the inverter:
1) Place the inverter on a flat surface, such as on the vehicle floor.
2) Please make sure that the inverter is shut down.
3) Attach the ring type connector marked with red to the positive (+) DC
terminal on the power inverter, and attach the ring connector marked
with black to the negative (-) DC terminal.
8.

9.
6. Operating Instructions
Caution！Reversing the polarity will cause a blown fuse or damage to the
inverter, which may also void the warranty.
Caution！A loose connection will cause the voltage to drop and may cause the cables
to overheat, resulting in equipment damage or fire.
Caution！If there are one more AC products connecting to the inverter, turn on
the larger power product first.
4) Tighten the nut on each DC terminal by hand until it is snug. Do not
over-tighten.
5) Connect the AC equipment.
6) When the power inverter is not in use, disconnect the DC cable clips
from the battery to prevent gradual discharge of battery.
Note: This product does not include DC battery cables. DC battery
cables sold separately.
1) When properly connected to a 12 V outlet or battery, turn on the
inverter, and the digital readout will switch on and the unit will deliver
AC power to the outlet(s).
2) Plug the AC product(s) you wish to operate into the AC outlet(s)
3) Switch them on, one at a time.
4) The unit will operate from input voltages ranging from 11.0 V to 14.0 V
DC.
As the battery is used, its voltage begins to fall. When the inverter senses
that the voltage at its DC input has dropped to the range of 10.7 - 11.3 V DC,
an audible alarm sounds. This allows time for computers or other sensitive
devices to be shut down. If the audible alarm is ignored, the inverter will

10.
automatically shut down when the voltage dropped to the range of 10.2 - 10.8 V
DC. When readout shows “LUP”, it is indicating a fault happening to the unit.
This protects the battery from being over-discharged. Turn off any devices that
the inverter is powering.
When input voltage rises to 11.7 - 12.3 V DC, inverter restores to normal.
Caution！Most vehicle batteries are designed to provide short period of very high current
for starting the engine. They are not designed for a constant “deep discharge”.
Constantly operating the unit from a vehicle battery until the low voltage shut off
will affect the life of the battery. If you are operating electrical products for
extended periods of time, you should consider connecting the unit to a separate
deep discharge battery.
Should a defective battery charging system cause the battery voltage to rise to
the range of 15.0 - 16.0 V DC, the inverter automatically shuts down; readout
shows “OUP”
Caution！Although the inverter incorporates protection against over-voltage, it may
still be damaged if the input voltage exceeds 16 V.
If an AC product rated higher than 3100 W (or which draws excessive surge
power) is connected, the inverter will shut down, the displaying readout shows
“OLP”. The unit will shut down automatically if the inverter exceeds a safe
operating temperature due to insufficient ventilation or a high-temperature
environment; and the readout will display “OCP”. The cooling fan is designed
with thermo-controlled technology.
Caution！Operating time will vary depending on the charge level of the battery, its
capacity and the power level drawn by the particular AC load. With a typical
vehicle battery and a 3000 W load, an operating time of 1 hour or more can be
expected. When using a vehicle battery as a power source, it is strongly

11.
7. Troubleshooting
Caution！Because the power inverter draws less than 1 A when turning on with no AC
product connected, it has minimal impact on battery operating times.
The voltage input is too low
(alarm is sounding).
charge the battery
PROBLEM CAUSE SOLUTION
No power, no
indicator.
Battery is defective Replace battery
Blown fuse Check and replace fuse
Lose cable connections
Check the connection
to the battery. Tighten
as required.
AC products connected are
rated at more than 3000W;
overload shut down has
occurred
AC products are rated less
than 3000W, but high
starting surge has caused
overload shutdown.
Reduce load, use a
product with power
rating less than 3000W.
Use a product with
starting surge power
within the inverter’s
capability (≤5000W).
recommended to start the vehicle every hour to recharge the battery before
its capacity drops too low. The inverter can operate while the engine is
running, but the normal voltage drop that occurs during starting of the engine
may trigger the inverter’s low voltage shutdown feature.
Unit is shutdown
with display
showing ”OLP”
Unit is shutdown
with display
showing “LUP”

12.
Alarm is sounding
Water entered
Inverter runs small
loads but not large
ones.
Low voltage shutdown or
thermal shutdown has
occurred.
Shorten cables or use
heavier cables. Recharge
battery. Allow unit to cool.
Improve air circulation
around unit. Locate unit
to a cooler environment.
Reduce load if continuous
operation is required.
TInverter is overheated due
to poor ventilation and has
shut down.
Unplug inverter from DC
socket and allow to be
cooled for 15 minutes.
Remove objects covering
unit. Move the inverter to
a cooler place. Reduce
load if continuous
operation is required.
Restart.
Low voltage battery
Water entered the unit
Charge the battery
Disconnect the inverter
and wipe immediately
with a dry cloth, or
permanent damage can
occur with liquid ingress.
Standard “average-reading”
AC voltmeter used to
measure output voltage,
resulting in an apparent
reading 5 to 15V too low.
Inverter’s “modified sine
wave” output requires “
true RMS” voltmeter for
accurate measurements.
Measured
inverter
output is too low
Unit is shutdown
with display
showing “OCP”
Unit is shutdown
with display
showing “OPP”
Inverter is short circuit and
has shut down.
Reset to normal
operation by using
manual switch

13.
Battery voltage is too low.
Battery run time
is less than
expected
Recharge battery.
AC product power
consumption is higher
than rated.
Battery is old or properly
defective.
Battery is not being properly
charged.
Use a larger battery to
make up for increased
power requirement.
Replace battery.
Some chargers are not
able to fully recharge a
battery. Make sure you
use a powerful charger.
Power dissipation in DC
cables.
Use shorter/heavier DC
cables.
8.Specifications
Specifications are subject to change without notice.
AC Output
AC output voltage 105V~125V AC
Maximum AC output power 3000W
Maximum AC output surge power 5000W
AC output frequency(nominal) 60 ± 2 Hz
AC output waveform Modified sine wave
AC output frequency(nominal) 5 V DC
USB Output

14.
9. Warranty
Ambient operating temperature
range
32°F - 104°F
(0°C - 40°C)
Dimensions (L×W×H) 11.86 x 13 x 4.2"
(30 x 33 x 10.7 cm)
Weight 11.66 lb (5.3 kg)
DC input voltage range 12.8~13.2V DC
Low battery alarm Audible, 11 ± 0.3 V DC
Low battery shutdown 10.5 ± 0.3 V DC
Low battery shutdown resume 12. 0 ± 0.3 V
High battery shutdown 15.5 ± 0.5 V
Fuse 25A fuse ×16
DC Input
Physical specifications
One Year Limited Warranty Program
NPower warrants this product for one year limited against any defects in
materials or workmanship. The defective products will be replaced and repaired
at no charge in either of one year.
This warranty lasts for 12 months from the date of purchase at the point of sale
to you. This warranty does not apply where the product has been misused,
improperly installed, physically damaged or altered, either internally or
externally, or damaged from improper use.
NPower will repair or replace the defective product free of charge. Proof of
purchase may be required. Warranty term is not extended if NPower repairs or
replaces a product. NPower owns all parts removed from repaired products.

15.
To qualify for the warranty, make sure the product has not been disassembled
or modified without the prior authorization. If you require warranty service with
your product, please return it to the place of purchase along with a copy of your
dated proof of purchase or call customer service at 800-222-5381 for details.