Square wave inverter vs Sine wave inverter, India, 2024

Umar Shareef

Once you decide to take Inverter the first question you are being asked is do you want to take sine wave inverter or Square wave inverter. In this article we clarify all the myths and present the facts.

Try our inverter selector to choose right inverter by answering simple questions without reading any buying guide.

The inverter converts battery DC electricity to AC electricity. DC signal looks like a unidirectional straight line and AC signal looks like waves of ocean. DC wave cannot travel long so all our home electricity is supplied in AC manner.

But the battery stores the power as DC, the inverter converts this DC current to some what similar to AC current. Depending on the inverter circuit, either inverter converts the DC current to Sine wave AC current or Square wave AC current

Sine wave inverter output is very close to the AC current. It is very pure form compared to Square wave output. Many devices gets heated up if you use on Square wave inverter and make humming noise too. Because of this reason square wave inverters in few European countries is banned.

Feature	Square wave inverter	Sine wave inverter
Supported appliances	Motors	Computers, laptops, refrigerators, ovens
Noise level	High, creates humming noise in inverter as well as in appliances	Normal
Safety of appliances	Less	High
Price	Economical	High
By www.zelect.in

Inverter wave type	Features
Square wave	Safety of appliances: Less Noise level: High, creates humming noise in inverter as well as in appliances Supported appliances: Motors Price: Economical
Sine Wave	Safety of appliances: High Noise level: Normal Supported appliances: Computers, laptops, refrigerators, ovens Price: Little expensive

Apart from that there is another type called modified sine wave inverter. It is not better as sine wave, but little better than square wave, and little cheaper than sine wave. In some sense it is positioned between sine wave and square wave. In fact, the number of models in India for modified square wave also less. We suggest not to got for modified square wave. If money is not a concern it is always better to go for sine wave inverter.