Best Voltage Stabilizers In India 2022 – Reviews & Buyer’s Guide

best voltage stabilizer for ac in india

Today, you can find that ACs claim to be stabilizer free. It actually implies that they can withstand a specific fluctuation in voltage but when there is a drop in voltage below the range, there can be issues. This is mainly the case in Indian homes during summer seasons when voltage fluctuates widely. Let us see some of the best stabilizers that you can purchase online.

Do Different AC Brands Need Different Stabilizers?

Yes because the circuit design, processors cooling method, and PCBs in each AC are unique and voltage stabilizers are designed to suit specific AC brands. In case you are worried about various appliances in your home, it is better to get a single mainline stabilizer for overall protection from voltage fluctuation.

6 Best Voltage Stabilizers for AC (Air Conditioner)

1. V Guard AC Stabilizer

v guard ac stabilizer

This stabilizer has an elegant design and can be mounted on the wall. The sleek design makes it easy to fit on the wall and doesn’t occupy any extra space. It adds to the aesthetics of the AC and the home interior too.


  • Model: VWI 400 Smart
  • Dimensions: 32.8 x 15.2 x 21.6 cm
  • Weight: 7.3 Kilograms
  • Suitable for: 1.5 Ton AC
  • Voltage: 130 V to 280 V
  • Color: White
  • Warranty: 3 Years
  • Thermal overload protection.
  • It has an ABS cabinet with Fire retardant characteristics.
  • It has 7 segments of digital display that helps you know the input and output voltage.
  • It has an intelligent time-delay system or ITDS that forms a proper safety net for the AC’s compressor.
  • Quick and accurate correction of even the smallest voltage fluctuations, ensures complete protection of sensitive components in your gadget.
  • Expensive.

Rating: 4.7/5

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2. MONITOR Voltage Stabilizer

monitor voltage stabilizer for ac

This stabilizer is suitable for split inverter AC that can be conveniently mounted on the wall. It is potent enough to handle the low voltage and hence protect the device.


  • Model: 4KVA
  • Dimensions: 27.1 x 18.6 x 10.5 cm
  • Weight: 3.3 Kilograms
  • Suitable for: 1.5 Ton AC
  • Operating Voltage: 170-270 V
  • Color: Metallic Gray
  • Warranty: 5 Years Replacement Warranty.
  • Economical.
  • It has 100% copper windings which is a better conductor, ensures better power-saving, and has a better power factor.
  • Can’t be used if the AC is more than 1.5 Ton.

Rating: 4.6/5

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3. Microtek EM4150+ Automatic Voltage Stabilizer

microtek em4150+ voltage stabilizer

This is an automatic stabilizer that stabilizes the utility voltage before being fed to the AC. This keeps your device safe as it receives just the required voltage.


  • Model: EM4150+
  • Dimension: 36 x 19.5 x 26 cm
  • Weight: 10.12 Kilograms
  • Suitable for: 1.5 Ton AC
  • Color: Metallic Grey
  • Warranty: 3 Years
  • ‘Save power technology’ results in amazing performance and reliability.
  • Automatic step up and step down of output voltage as per the input voltage.
  • Digital display for showing a real-time display of input and output voltage.
  • Winding is not 100% copper.

Rating: 4/5

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4. Microtek EM5170+ Automatic Voltage Stabilizer

microtek em5170+ voltage stabilizer

This stabilizer ensures safety during fluctuations in voltage by which are generally seen in various cities in India. Thus there is no damage to the appliance. It has an ergonomic design and is space-saving since you can mount it on the wall. You can use it for Carrier 2 Ton AC.


  • Model: EM5170+
  • Dimensions: 28 x 16.5 x 16.5 cm
  • Support: up to 2 Ton
  • Weight: 4.84 Kilograms
  • Color: Metallic Gray
  • Warranty: 3 Years
  • Power-saving technology.
  • The auto-start feature consistently steps up and steps down the output voltage as per the input voltage.
  • In the case of power cuts, there is an automatic cut down of the grid supply.
  • There is a seven-segment digital display for showing the input and output voltage.
  • Can’t be used for ACs more than 2 ton.

Rating: 4.1/5

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5. V-Guard VG 400 Stabilizer

v-guard vg 400 stabilizer

IC technology is used in this stabilizer to ensure that appliances get advanced protection. It is made up of durable ABS material and can be mounted on the wall. You can use it for Godrej 1.5 Ton AC.


  • Model: VG-400
  • Dimension: 32.8 x 21.6 x 15.2 cm
  • Weight: 2.64 Kilograms
  • Capacity: up to 1.5 Ton
  • Voltage: 170-270 V
  • Color: Grey
  • Warranty: 3 Years
  • It has LED indicators for showing voltage.
  • Inbuilt thermal overload protection.
  • Initial time delay system which is a safety system for the compressor of the AC.
  • It has cut off protection for lower and higher voltage.
  • Screws provided for installing the device on the walls could have been sturdier.

Rating: 4/5

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6. V-Guard ID4 Ace 5540 Stabilizer

v-guard id4 ace 5540 stabilizer

This stabilizer has a classy design that perfectly suits your interior and AC as well. It has a circular digital display with a ring around it that changes color.


  • Dimension: 24 x 13.5 x 32 cm
  • Weight: 7.4 Kilograms
  • Voltage: 140-280 V
  • Suitable for: 1.5 Ton AC
  • Capacity: up to 1.5 Ton
  • Warranty: 3 Years
  • Inbuilt protection from thermal overload.
  • Its intelligent time-delay system switches on the stabilizer automatically when there is a power failure for more than 3 minutes.
  • It has smart output voltage correction.
  • Expensive.

Rating: 4.2/5

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Booster Stabilizer for Air Conditioners Buying Guide

Some important points to consider while purchasing an AC stabilizer are as follows:

1. Type and Brand of Your AC:

Not all stabilizers are suitable for all AC brands. So you need to look for the one that is suitable for your AC, to prevent any kind of issue.

2. Protection from Thermal Overload:

High-temperature burnouts are prevented when your stabilizer has this feature.

3. Digitized Stabilizer:

Such stabilizers ensure easy adaption to voltage fluctuations besides providing a protection layer to different electronic devices.

4. Time Delay:

This system provides enough time to the compressor for generating the necessary voltage and uniform flow of current, mainly during short power cuts.

5. Voltmeter Indicator:

You can track the voltage using this which comes with a LED light indicator.

6. Placement:

Stabilizers need to be placed in areas where there is no risk of getting wet or damaged. Make sure that it has the option to be mounted on the walls safely, away from kids, for safety.

7. Surge Protection:

This is an important factor mainly during lightning, short circuit, and voltage spike, which are most likely to damage the stabilizer as well as the device linked to it, as they won’t get time to adjust to the change. So the spike guard or surge protection results in the effective management of this voltage.

Voltage Stabilizer forms one of the most important ways of ensuring the protection of your AC. Since AC is an expensive appliance, you need to invest in a good stabilizer for the best experience.

Frequently Asked Questions (FAQs)

Q. How to determine the size of the stabilizer needed by your AC?

Ans – An AC’s power consumption will determine the size of the stabilizer. When more than one ACs are connected to a stabilizer then there is a 20% increase in the resultant Watt value. Kilo Volt Ampere or Volt Ampere (VA) is used for expressing this.
AC’s energy rating and range of voltage fluctuation also determine the stabilizer size.

Q. What is the standard stabilizer size needed for a 1.5 ton and 2 ton AC?

Ans – When you use a 1.5 Ton AC, a 4 KVA stabilizer has to be used and for a 2 Ton AC, 5 KVA stabilizer is needed.

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