Best Mainline Voltage Stabilizers for Home In India

This article is all about the best mainline voltage stabilizers for home in India.

India is a country severely affected by voltage fluctuations and power outages. In fact, low voltage is pretty frequent in some parts of the country.

Best Mainline Voltage Stabilizers for Home In India

Talking about this concern wouldn’t feel as if it hurts; however, trust me, it does. This can cause crucial harm to the electric components in the house.

In fact, it poses a threat to the critical working of these expensive pieces of equipment.

After our team visited and interacted with multiple households. As a result, people are mainly focused on safeguarding specific appliances which are indeed expensive, such as Air conditioners.

However, a mainline stabilizer is also a must-have appliance in every household. It doesn’t protect only one particular appliance. It instead protects each and every electronic component from undesired voltage fluctuations.

Because these voltage fluctuations not only just affect the efficiency, there are chances of entire unit failure as well.

So, further, I’m going to review the great models of voltage stabilizer that are best for home. Below the models, you can check their advantages, disadvantages and feature details.

Let’s dive right in!

What precisely is a Mainline Voltage Stabilizer?

What precisely is a Mainline Voltage Stabilizer?

Now, there are two types of stabilizers, one that is built primarily to safeguard specific appliances.

Another, the mainline one which protects the entire mainline from unwanted fluctuations.

As discussed, even now as well, people tend to go for a single stabilizer for a single unit which means different stabilizers for different electronic appliances.

Going for separate stabilizer units results in additional charges; though it works well, however, there is a scope that you can still save money.

A mainline stabilizer is a unit that can directly be connected to the main power line (the entire electricity which is coming to your house)

It means it tackles and levels the entire mainline, making sure all of your components are protected.

These low voltages not only affect the efficiency but, in some cases, damage the entire appliance.

At times, there is interference in the line resulting in fluctuations that go above par. And it can hurt even more.

You have to be cautious while you select a stabilizer; it should be based on the appliances and load in your house. Below, I have mentioned some of the great models which you can select based on your requirement.

Best Mainline Voltage Stabilizers







Model Number



VGMW 500 Plus



19 kg

20 kg

16 kg 700 g

15 kg 500 g

Operating Voltage

90V - 300V

90V - 300V

90V - 300V

90V - 300V

Winding Material


Heavy Duty Copper

Cabinet Material: Metal

High Grade Aluminium


20 x 10 x 10 cm

43 x 43 x 26 cm

39 x 36 x 21 cm

44.99 x 37.2 x 22 cm


1 Year ( T & C apply )

1 Year ( T & C apply )

2 Year ( T & C apply )

2 Year ( T & C apply )

Our Reviews

Check Price

1) AULTEN 5KVA 4000W

Image of AULTEN 5KVA 4000W Voltage Stabilizer

Number one, we have a great product from Aulten. They provide an exclusive range of power-efficient solutions products specifically to protect all your home appliances.

The voltage stabilizer effectively cuts and levels the high or low voltage fluctuations to prevent damage to your home appliances.

It comes with an ergonomic wall mounting sleek design and can be wall-mounted. The design and features make its installation effortless.

The product is equipped with a smart digital display that shares with you the precise output and input voltage, making sure you get the accurate readings of the voltage stabilizer.

This unit maintains a safe output voltage range which is within 200 V – 240 C +5%. Additionally, it can tackle it ranging from 90-300V, making sure it is perfectly compatible with all the electronic components.

Aulten features an inbuilt microcontroller that initiates an utterly automatic operation and tracks the real-time input and output voltage.

The wide voltage range makes sure you never run out of electricity even if the fluctuation is high or low.

It is a manufacturer of top-notch quality metal cabinets, and the finishing is a sort of machine which will undoubtedly upscale the decor of your house. You get an extended one year warranty with this unit ( T & C apply )

AULTEN 5KVA 4000W Mainline Stabilizers

What are its benefits?

  • Excellent build quality and design
  • An inbuilt microcontroller that ensures you do not run out of electricity
  • Cuts of and levels high and low voltage fluctuations
  • A digital display indicates the input and output voltage
  • A metal cabinet that comes with excellent finishing
  • Hassle-free and convenient installation
  • Product delivered on time
  • Many people notice an improvement in electronic components
  • Brand reliability and great user reviews
  • Value for money product

What are the drawbacks?

  • Some people reported fluctuation issues even after installation but got resolved by Aulten.
Check price at amazon link

2) Servomate 5KVA Copper Heavy Duty

Servomate 5KVA Copper Heavy Duty Voltage Stabilizer

Servomate voltage stabilizer is one of the highest-rated products on the entire list. It has a high and low voltage cutoff protection which prevents your appliances of sudden upsurge or below par voltages.

Another positive aspect of this product is the initial time-delay system. It means, whenever there is voltage fluctuation, it initially delays & protects the compressor from frequently restarting, ensuring the complete safety of the connected appliances.

The product can be mounted on the wall, or you can place it as well. Its output voltage stands somewhere within 200 V – 240 V, which provides complete protection in case of over and under fluctuation.

You can rely on the fantastic auto thermal cutout feature, which ensures unit auto cut off in case of low voltage. It comes with a digital LCD that displays output and input voltage, including LED indicators.

The unique and efficient IC technology gives this stabilizer advanced protection, preventing any damage. 

The energy consumption of this product is 50 Watts and is made of 100% copper. It is advisable to get the product installed by a professional electrician for the best performance. You get 12 months replacing guarantee against any manufacturing defects ( T & C apply )

Servomate 5KVA Copper Heavy Duty Mainline

What are its benefits?

  • Excellent and robust build quality material ( 100 % Copper )
  • Initial time delay feature, which prevents the compressor from the frequent restart.
  • Inbuilt thermostat overload protection which cuts of in case of high or low voltage
  • LED display displays output and input voltage
  • Real-time tracking
  • The brand has got excellent user reviews
  • Extended manufacturer’s warranty

What are the drawbacks?

  • Delay in delivery
  • Other than that, it hasn’t even got a single bad review.
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3) V-Guard VGMW 500 Plus

V-Guard VGMW 500 Plus Voltage Stabilizer

Many people would indeed be surprised as V-guard, the leading brand of stabilizers, has got the 3rd position in the list. 

The reason being, above two brands, are highly rated and reliable. And based on various parameters, it stands where it is in the list.

This mainline stabilizer is available in black colour with a mirror finishing right at the front. It will look beautiful mounted on the wall or if you place it somewhere.

Just like the above product, this stabilizer also comes with an initial time delay feature.

So, what it does is, whenever the voltage fluctuation happens, the compressor of the unit starts to reboot automatically, which can be very frequent. Hence, there are chances of potential damage.

The delay feature delays the rebooting process, which adds double protection to the connected electronic components.

Some people already have an inverter installed in their house. If that’s the case, you can surely get this model connected to the inverter as well.

Be it high or low fluctuation, V-guard is compatible enough to deal with both of them to protect all your expensive components. You can now enjoy maximum efficiency with this wide input range of this incredible model.

This fabulous product is manufactured with utmost precision, making sure of a matchless quality reassured around the clock protection to all the electronic components connected.

V-guard provides a two years manufacturer’s warranty on this model from the date of purchase ( T&C ) apply.

What are its benefits?

  • Excellent build quality as the cabinet material is metal
  • The initial time delay feature delays the compressor auto restart
  • Outstanding performance as it serves the purpose very well
  • High and low voltage auto cut off protection
  • Can perform in a wide input range
  • You can also get it connected to the inverter
  • Excellent Reviews and Brand Reliability

What are the drawbacks?

  • Some people reported noise while operating.
Check price at amazon link

4) Microtek EML 3090 90 Voltage Stabilizer for Main line

Microtek EML 3090 90 Voltage Stabilizer for Main line

Microtek is my last recommendation of this detailed list of the best mainline voltage stabilizers in India. It is an efficient model and will most certainly keep all your appliances safe.

Like all other models, Microtek also features a digital display that will help you keep track of real-time input and output voltage details.

If you have multiple air conditioners in your house, then this is an ideal model to opt for. The reason being, it ranges around 1-1.5 Ton with an input voltage range of approximately 150 V – 280 V, which makes it compatible with all types of appliances.

Microtek ensures that it can withstand and maintain optimum voltage in cases of high and low voltage fluctuations.

You can get it mounted on the wall because it has a compact and sleek design which would make the installation convenient and hassle-free.

The appliance is quite energy-efficient and is suitable to use for household purposes. You get an extended two years of warranty on the stabilizer ( Terms and conditions apply )

What are its benefits?

  • Simple and stylish
  • Most preferred and award-winning brand of India
  • Robust technology and multiple unique features
  • Can easily withstand high and low voltage fluctuation
  • Compact and sleek design
  • The digital display shows input and output voltages
  • Highly adaptive and durable
  • Most selling product of India
  • Great user reviews

What are the drawbacks?

  • Slightly expensive
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Frequently Asked Questions

Best Mainline Voltage Stabilizers Frequently Asked Questions

1) Is a stabilizer a must for AC?

The answer to your question depends on the type of Air conditioner you have. Some latest models are coming up with advanced compressor technology. Now, this technology automatically detects the fluctuation and stabilizes it accordingly. 

At the same time, the old models do require a stabilizer to safeguard themselves.

2) How many appliances can I run on my mainline stabilizer?

The number of appliances depends on the wattage of the stabilizer. Moreover, before that, you need to check the number of appliances you would like to run and based on that, you have to select the right wattage.

All this process is slightly technical, so I would request you to appoint a professional electrician. He/she will guide you with the wattage you need.

3) How many types of stabilizers are there?

Though there are many types and brands out there, the main ones that people primarily select are static stabilizer, servo motor, and relay.

4) Can you run the ac without a stabilizer?

Generally speaking, the ac could still perform the process and cools down the room even without a stabilizer. However, in that case, the appliance is always at risk. It is best to install a stabilizer because it can definitely prevent any damage caused by voltage fluctuation.

5) How will the mainline stabilizer protect my home appliances?

The Mainline stabilizer gets installed in between the mainline and the current, which passed to the home appliances. Its job is to maintain and level the voltage coming from and provide a constant supply to the appliances.

If I talk in layman’s language, if the input voltage (the one that’s coming from outside) gets higher than what your appliances can handle, the stabilizer will then stabilize it to an acceptable level.

For instance, if that goes below par, it will then amplify to what your devices require. This is how it will provide a constant supply of electricity to your devices which prevents damage and at the same time increases the lifespan of the appliance.

6) What are the top voltage stabilizer brands in India?

Though there are many stabilizer brands in the Indian market, I have covered 4 of the above. However, I personally feel V-guard and Servomate are currently the best in business. You can also refer to the list below.


7) Can I run my AC on low voltage?

As discussed above, some of the latest units are coming with smart inverter compressor technology. In the new models, yes, you can indeed run the AC on low voltage as it has the ability to provide constant power.

If you have an old AC model, you would need a stabilizer as voltage fluctuations affect the performance and can cause damage as well.


There you have it, our detailed review of the best mainline voltage stabilizers in India.

For instance, if you are unaware of the wattage needed for a stabilizer, you can call a professional electrician to guide the precise requirement. The above models are most suitable for all purposes.

I hope this guide helped you choose the right stabilizer. In case of any doubts or queries, do let us know in the comment section below.

Shubham Sachdeva is a customer service & escalation head with almost 7 years of experience in corporate before starting Sorted Review. Being a gadget freak he has always loved to learn the inner working of various machines and consumer electronics. He regularly tests various audio, home appliances, and daily use products, to provide the best advice to readers. He is a wizard that can make your shopping easy, saving you time and stress of figuring out what to buy.

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