Modified Sine Wave Inverters

Modified sine wave inverters - also known as Square Wave, Modified Square Wave and Quasi Sine Wave inverters are the most common types of power inverters on the market.
Modified sine wave inverters are substantially cheaper than Pure Sine Wave Inverters and do not represent true AC power that you would normally acquire from the utility power delivered to your home. Most appliances will work from these basic inverters, but unfortunately unless you can look at the internal electronic design of the appliance, you can’t be sure if you will really need a sine wave inverter. The squarish waveshape can also confuse the timing circuits in some appliances that use the mains frequency to control a clock.

---

It is also important to understand that there is no way to upgrade or clean a modified sine wave signal. If your item does not work on a modified sine wave inverter, you will need to purchase a true sine wave power inverter.
The only advantage of a modified sine wave inverter is the cost. But as with everything cheap, the full price isn’t in dollars. You’ll get reduced performance from all your appliances—they’ll run hotter and not last as long. This type of inverter is recommended for smaller installations such as a camping cabin.

Power inverters convert 12V DC power from your renewable energy source into 240V AC power that is needed for running appliances, such as hair dryers, televisions and more.
Power inverters are an ideal source of portable mains power. Being compact and portable, power inverters can be used in cars, caravans, boats, 4WDs and trucks. Using a power inverter for household appliances is a much cheaper option than purchasing specialized 12V appliances for those times when mains power is not available. Compared to generators, power inverters are a greener and cheaper long term option.

Being able to correctly choose the right size inverter for your need is an important consideration. To determine the power requirement to run your appliances use this calculation:
Volts x Amps = Watts
An example of this would be a small microwave that according to the back panel could draw 5.5 amps to operate effectively would require an inverter of at least 1320 watts (240 x 5.5 = 1320).

iSustain Australia offers a wide range of inverters to meet your specific application. When choosing an inverter you should consider the following:
1. The total wattage of connected devices should not exceed the model's continuous wattage rating.
2. The number of connected items of equipment to determine how many outlets are required.
3. The application to help you choose the proper type of inverter or inverter/charger.