OFF GRID INVERTERS
 

Inverters for Stand Alone Applications

Please Browse Our Range Below...

Inverters are an essential purchase for everyone who wants to be able to power 240V equipment from a battery. If you're a boat owner or someone who if living "off-grid" and power is supplied from batteries, an inverter will be top of your wish list. They are very easy to install and operate. We supply inverters from leading manufacturers including: Victron, Outback, Studer, Genius and Cotek.

Victron Inverters Professional power for marine and industrial applications.	Outback Inverters The Outback FX series of inverter/chargers are designed to survive harsh environments anywhere in the world.	Studer Inverters The AJ and SI series provide a high and steady output with an outstanding overload capacity.
Genius Inverters Great modified sine wave inverters at super prices.		Powermaster Inverters These inverters are no longer available.

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For general information about Solar PV Systems then read Grid Connect Solar PV Systems

For Grid Connect Inverters then check out our range of  Sunny Boy, Windy Boy and Fronius Inverters

Important!

If you want to know more about installing and using inverters. Read our GUIDELINES.

What is an inverter?

Storage batteries use and store DC - Direct Current and have a low voltage output usually in the range of 12 - 24 volts. Virtually all modern appliances operate on AC - Alternating Current and work on 240 volts. An inverter is a device that takes the power from your DC battery source and through special technology boosts it to household AC electricity giving you the power to run appliances such as televisions, lights, computers, and power tools wherever you may be. Simply, an inverter increases your 12/24/48-volt battery power to 110/240 AC power.

How do they work?

An inverter boosts your DC power 10 to 20 times by switching the power to create pulses of electricity in AC. This switching process is generally done by high frequency power mosfets.

Pure Sine Wave vs. Modified Sine Wave - What's the difference?

There are two forms of electric wave output generated by an inverter:

• i. pure or true sine wave;
• ii. modified sine wave.

To understand the difference we need to look at their performance.
Pure Sine wave is the same as the power you have in your home. It is very clean and is the optimum for performance. This smooth pure sine wave is most efficient. Therefore, appliances such as TVs, computers and stereos run cleaner and easier. Also, Pure Sine wave generates less heat than other waveforms. Modified Sine wave is an output that tries to imitate pure sine waves but comes up a little short. Nevertheless, modified sine wave inverters have their advantages. Modified sine wave inverters are great to run appliances and equipment such as power tools, non-digital microwave oven, lights, and other motor driven loads.

The main downside to modified sine wave output is slight interference. This interference can be seen on some televisions and computers. It will not cause any damage, but can be a little annoying. The upside to modified sine wave inverters is they will run most appliances, and are very affordable.

What size inverter do I need?

This depends on what you want to operate. If you want to run a 600-watt drill, a 150-watt inverter will not do the job. When choosing an inverter determine what you want to run and then get the inverter that delivers the appropriate power you need. Please look at the specifications to see which inverter gives you the power you need.

Will it run my batteries dead?

Running an inverter certainly takes power from your batteries, but most inverter protects you against running your battery completely dead. Once your battery drops to certain point the inverter will sound an alarm to let the user know battery power is getting low. If the inverter continues to operate, drawing more power, the inverter will turn itself off to ensure you have enough power in your battery to start your car, truck, boat or RV. It is important to remember that to get the best performance from an inverter a good battery source is needed. Please view the chart overleaf that describes different power requirements for everyday equipment.