600W / 1200W Pure Sine Wave Inverter 12V DC to 240v AC Camping Caravan

Regular price $219.00

Tax included. Shipping calculated at checkout.
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This model is used in a wide range of application including remote homes, RVs, sailboats and powerboats.

It will operate most televisions and VCR, personal computers, small appliances and tools such as drills, sanders, grinders, mixers and blenders.To get the most out of the power inverter, it must be installed and used properly. Please read the instructions in this manual before installing and using this model.

Technical Data 

 Model NO.



AC voltage


Continuous power


Surge power



Pure sine wave 

Frequency 50HZ±3%
AC regulation ±5%
Receptacles 2 pcs for type2, 1pcs for type 3 4 5 6
LED indicator Green LED for power on; red LED for power fail ure status


DC current


No load current draw


DC voltage


Voltage range 10.5-16VDC(12V)/21-32VDC(24V)/42-64(48V)
Efficiency(Typ) >87%
DC connector Cable*1pc  
Fuse 1pc 3pcs  
BAT. lowalarm   11±0.5v(12v)/22±1v(24v)/44±2v(48)
BAT. lomshutdown   10.5±0.5v(12v)/21±1v(24v)/42±2v(48)
Over voltage   16±0.5v(12v)/32±1v(24v)/64±2v(48)
Over temperature   55±5°C
Short circuipro tection   Shut-off
BAT. Polarity   Fuse burn out
Over load   Re-start 2 times, shut down in failed
Working humidity   20%--90% rh non-condensing
Storagetemp.humidity   -30--+70°C/--22F, 10—95%rh
Temp. coefficient   ±0.05%°C(0-55°C)


Quick hook - up and testing

If you would like to quickly hook-up the power inverter and check its performance before going ahead with your installation, please follow these guidelines:

1. Unpack and inspect the power inverter, check to see that the power switch is in the OFF position.

2. Connect the cables to the power input terminals on the rear panel of power inverter. The red terminal is positive (+) and black terminal is negative (-). Connect the cables into the terminals and tighten the wing nut to clamp the wires securely.

3. Connect the cable from the negative terminal of the inverter to the negative terminal of the power source. Make a secure connection.

Loosely tightened connectors result in excessive drop and may cause overheated wires and melted insulation.

4. Before proceed further, carefully check that cable you have just connected connects from the negative terminal of inverter to the negative output terminal of the power source.

Reverse polarity connection will blow a fuse in inverter and may permanently damage the inverter. Damage caused by reverse polarity connection is not covered by our warranty.

5. Connect the cable from the positive terminal of inverter to the positive terminal of the power source. Make secure connection.

You may observe a spark when you make this connection since current may flow to charge capacitors in the power inverter. Do not make this connection in the presence of flammable fumes, explosions or fire may result.

6. Set the power switch to the ON position. Check the meters and indicators on the front panel of the inverter.

If does not, check your power source and the connections to inverter. The other indicators should be off.

7. Set power inverter switch to the OFF position, the indicator lights may blink. Plug the test load into the AC receptacle on the front panel of the inverter. Please keep switch in off position.

8. Set power inverter switch to the ON position, the inverter should supply power to the load.


1. Where to install

The power inverter should be installed in a location that meets the following requirements:

a. Dry - Do not allow water to drip or splash on the inverter.

b. Cool - Ambient air temperature should be between 0℃ and 40℃, the cooler the better.

c. Ventilated - Allow at least one inch of clearance around the inverter for airflow. Ensure the ventilation openings on the rear and bottom of the unit are not obstructed.

d. Safe - Do not install the inverter in the same compartment as batteries or in any compartment capable of storing flammable liquids such as gasoline.

2. Cables

DC to AC inverters require high amperage/low voltage DC power to low amperage/high voltage AC power. To operate properly connect inverter DC input terminals direct to battery with heaviest wire available see chart below:

Max    Watts Out

Approx.    Amps

Teq'dWire    Gauge


















#6    or 2×#10

3. Grounding

The power inverter has a lug on the rear panel chassis ground. This is to connect the chassis of the power inverter to the ground. The ground terminals in the AC outlets on the front panel of the inverter are also connected to the ground lug.The chassis ground lug must be connected to a grounding point, which will vary

depending on where the power inverter is installed. In a vehicle, connect the chassis ground to the chassis of the vehicle.

In a boat, connect to the boat's grounding systems. In a fixed location, connect the chassis ground lug to earth.

The neutral (common) conductor of the power inverter AC output circuit is connected to the chassis ground. Therefore, when the chassis is connected to ground, the neutral conductor will also be grounded .This conforms to national electrical code requirements that separately derived AC sources (such as inverters and generators) have their neutral tied to ground in the same way that the neutral conductor from the utility line is tied to ground at AC breaker panel.

The negative DC input of the power inverter is connected to the capacitance, then to the ground a positive ground DC system.

A positive ground DC system has the positive terminal of the battery connected to the chassis of the vehicle or to the grounding point.


Do not operate the power inverter without connecting it to ground. Electrical shock hazard may result.


To operate the power inverter, turn it on using the ON/OFF switch on the front panel. The power inverter is now ready to deliver AC power to your loads. If you are operating several loads from the power inverter, turn them on separately after the inverter has been turned on. This will ensure that the power inverter does not have to deliver the starting currents for all the loads at once.

Controls and indicators

The ON/OFF switch turns the control circuit in the power inverter on and off. It does not disconnect power from the power inverter.

Operating limits

1.Overload / Auto re-start

The inverter would operate most AC loads within its power rating. If the load is over the specification, HT-S-300 will auto re-start 5 times, if not success, the inverter will shut down automatically.



The buzz will be noisy if the    temperature is

Television    interference :

too high, then the inverter    will be shut down

Operation    of the power inverter can

automatically. Please re-set it    after the

interfere    with television reception on

inverter got cooling.

some    channels. If this situation occurs,

Note1:  The speed of fan operation will

the    following steps may help to

change 5-stage to follow the    inverter

alleviate    the problem.

internal temperature.

-Make    sure that the chassis ground


lug on    the back of the power inverter is


solidly    connected to the ground system

3.Input voltage

of your    vehicle, boat or home.

The power inverter will operate    from input

-Do not    operate high power loads with

voltage range 10V-15 (12V) or    20V - 30V

the    power inverter while watching

(24V).    If the voltage drops too low(※1) or


raise    too high(※2),the inverter will shut

-Make    sure that the antenna feeding

down automatically. Before shut    down, buzz

your    television provides an adequate

noise will warn you.

(snow    free) signal and that you are


using    good quality cable between the


antenna    and the television.

※1:<10.3V(12V    spec) or <20.6V(24V spec)

-Move    the television as far away from


the    power inverter as possible.

※2:<15V(12V    spec) or <30V(24V spec)

-Keep    the cables between the battery


and the    power inverter as short as


possible    and twist them together with

4.Frequency Switchable

about 2    to 3 twists per foot. This

Adjust 50/60 HZ through the    switchable

minimizes    radiated interference from

button.Buzz noise will remind    you:

the    cables.






Very    little maintenance is required to


keep    your inverter operating properly.

Please turn on the inverter    again when

You    should clean the exterior of the

you change frequency.

unit    periodically with a damp cloth to


prevent    accumulation of dust and dirt.


At the    same time, tighten the screws


on the    DC input terminals.

Troubleshooting  guide


possible cause



Battery    voltage too high

Check    for fault with



battery    charging system.



Manually    reset inverter



by    turning switch to "on"





Battery    voltage too low

Charge    battery. Manually



reset    inverter by turning



switch    to "on" again.





Battery    current too high,

Reduce    load on the


probable    AC overload






System    over-temperature

Improve    ventilation and



cooling    and / or reduce



load on    the inverter.


Overload    or system

Ensure    all loads and


hardware    fault

disconnected.    Try to



reset    the unit by



switching    to "on" if unit



still    does not operate,



contact    your distributor/



merchant/    retailer for



service/    warranty