Best Surge Protector for Air Conditioner



Just imagine hosting a summer party in your well lit house. The house is cozy with the Air conditioners. The guests are pouring in and the ambience is getting charged up. Just when the DJ is set to upturn the music a sudden voltage spikes slumps the party mood to the floor…. Sounds Familiar?

Everyone out here is usually well prepared to counter a blackout. It seems quite easy and simple. Though, not many are concerned about brownouts until they fall victim to one. Brownout is essentially a voltage drop or a voltage spike that causes the electric equipment to underperform. It may also damage the equipment permanently. Have you been there ever?

What is Brown out?

Brownout is an occasional and temporary reduction in the electricity voltages rather than complete loss of power it is sometimes said ”sag” , “dip” and light surge in some cases.

You might ignore brownout thinking it of a rare phenomenon. But the experts tell that these brownouts, sometimes un-noticed, are a cause of increased power consumption. Voltage hikes or drops cause motors and heating element of the electronic equipment to consume more power that leads to a higher electricity bill. What’s the point of paying more for a problem?

We tend to spend a hefty amount on installing the best Air Conditioner in our dwelling. We carefully choose the brand, size, and tonnage of the AC but our money goes down the drain when a little electric surge renders all our investment counterproductive. We are left all but incapable of ripping the fruit of our efforts. So agonizing, isn’t it?

Role of Surge Protector

Surge Protector is there to rescue you from such unfavorable happenings. It is a simple device that helps save your Air Conditioner from brownouts. It is nothing but a simple pack that hosts handful of outlets controlled by a power button.

We will help you find a good quality surge protector that can protect your Air Conditioner from electrical surge better than ever. There are a number of surge protectors available in the market. Finding one is not even an issue but finding a good quality surge protector is. A good quality surge protector is one that can protect your Air Conditioner in all sorts of voltage issues; high voltage, low voltage and voltage fluctuations.


As the name of the product suggests, a surge protector can:

  • Help protect against fluctuations in voltage
  • Help reduce power fluctuations especially short cycling
  • Be easy to use
  • Accommodate hidden wiring
  • Be time adjustable


role When it comes to Power Surge Protectors, there are numerous factors to be considered. Selecting a power surge protector for your house air conditioning is not as simple as it seems. One must think through a set of characteristics that best suit the power surge protector they are looking for. Experts have provided a lot of information on what to see when selecting a surge protector. Sometimes it becomes too tricky for a homeowner to make a decision.

To rescue you, we have compiled a set of characteristics that can become handy to see whenever one attempts to buy a perfect power surge protector for their homes.


Although not much a worry for some, still, knowing the weight of power surge protector device becomes handy. After all the device is to be installed to the AC power output and the assembly must be well supportive of the device that is going to be installed. Too heavier devices might not go well with the power socket or attached cable. 


Just like the weight, the size is also least of concern for some but can be a deciding factor for some who have limited space to install the device. Most of the power surge protector devices are handy and are smaller than an average novel book size. Pretty smart to install anywhere? But wait! There are some surge protectors out there in the market a bit bulkier than a book that need extra space to fit in. So you better watch out for that.  


This is pretty straight-forward feature. Most surge protectors work in the range of 120 to 240 V. Suit yourself and select the one that fulfills your voltage setup.  

Clamping Voltage

There is a threshold value of the voltage that is allowed to pass through a power surge protector prior to the surge protector actually protects the target equipment from further voltage. In simple words, clamping voltage controls the maximum amount of voltage that can damage the Air Conditioner. Clamping Voltage are available in the range of 300 V, 400 V and 500 V.


When it comes to material types, there is a vast range that power surge protectors are available in. While most common is the metallic one, still, there are devices manufactures in plastic. Although there is nothing much that type of material does to the performance of the power surge protector but in order to ensure the better end-of-life (EoL) of the product, one should consider this aspect as well. There are a whole lot of materials titled HAWA that stands for trading goods. Such trading goods are generally bought externally and are resold without need to be reprocessed for future use.


The usage is categorized in two broad categories; personal use or commercial use. This characteristic is quite obvious and does not require much detail. All a client needs to know is the place where they want to install it; home or commercial place.

Joule Rating

Technically speaking, this is the most important characteristic of the power surge protector that is actually amount of energy an AC power surge protector can absorb during a single event beyond failure. It is the quantity of energy which your air conditioner surge protector can utilized. A higher joule rating can do much better protection. More the Joule rating better is the performance of the surge protector. In order for a surge protector to work best, the Joule Rating should be beyond 1000 Joules. Joule rating up to 1000 surge protector is enough for small electronic devices. Joule rating 1000 to 2000 surge protector is enough for power tools and office equipment’s. Joule rating higher than 2000 surge protector is used for expensive gaming consoles, home theater system and computers which keeps important information’s. And things which is irreplaceable and extremely confidential

If you looking to find air conditioner surge protector try to find 1000 to 2000 joule rating that has favorable results according to many users’ reviews.

Number of Ports

The number of ports come into action for a multiport surge protector. Usually, strip type surge protectors hold these features and have minimum 2 numbers of ports to support multiple types of equipment.


Types of surge protectors are followings, and it is divided according to their standard.

  • Type 1 Air Conditioner Surge Protector: It can be discharge partial lighting current and wave form having 10/350 μs.
  • Type 2 Air Conditioner Surge Protector: It is useful when in fluctuations of voltages in electrical installations and protected equipment’s which is connected with it.
  • Type 3 Air Conditioner Surge Protector: This surge having low quality discharge capacity so it can be installed with Type 2 and sensitive loads. And it is combinations of current and voltage waves.


First of all one needs to be sure that it is absolutely waste of money and time to go for any cheap off-brand considering that these will work just fine. YOU ARE ABSOLUTELY WRONG. There is a slight good chance that such off-brand power surge protectors might work just fine but who would like to waste their money?

There are a number of quality surge protector brands out there that are manufacturing good quality surge protectors. Following is the list of those brands:

  • Intermatic
  • Leviton
  • Eaton
  • Siemens
  • Chint
  • Finder
  • Carlo Gavazzi
  • Himel
  • Legrand
  • Homeline
  • Square D (Schneider)
  • ABB
  • Chint
  • Dehn
  • Mersen
  • Raycap

Now you can see what manufacturers to consider, what characteristics to see and how to select a best-suited Air Conditioner Power Surge Protector for your need. 


Still confused? Although a lot of information has been provided in case you would like to handpick an AC Power Surge Protector based on your custom needs. Still, if you are confused and would like to just pick one, we are happy to help.


Siemens FS140 Whole House Surge Protection

Siemens FS140 Whole House Surge Protection

Undoubtedly, perfect surge protector for your house with 10-year product and connect equipment that is compatible with any brand of the air conditioner. Trade-mark of Siemens in Surge protectors, the surge protector weights just over 1-kg and fits in a palm. It offers very easy installation and provides protection against most loads at home. It comes with a alarm that signifies if the surge protector has malfunctioned. The surge protector is made-up of HAWA and comes in 4 colors. 




Eaton AC Power Surge Protector is a type 2 surge protector that can connect to all types of load centers from all manufacturers. This makes it one of a very few universal surge protectors and it is best known for easy and quick installation that is mountable. It comes in a palm-sit size and it provides 4 ports. It has 2 LEDs that indicate the mode the surge protector is working in. It blinks green light when in normal while it blinks red LED when the surge protection is activated. These are best known to take infinite number of small surges to save the attached equipment from damage. It is designed in such a way that it will destroy itself in an event of big surge in order to protect the equipment it is attached to.


Leviton 51120-1 120/240 Volt Panel Protector, 4-Mode Protection

The surge protector works efficiently on 120/240 Volts and offers 4 modes protection. It is perfect for light commercial units and residential installments. It is most commonly compatible with Decora Home Controls and offers a finite time warranty. It has two LEDs that show real-time visual diagnostic of surge and power status against each protected phase mode. These offer a very simple installation options and have a very broad compatibility options. These surge protectors have a single port and weight just over 2-kg. It works perfect with 3-phase, that is actually most suited for commercial use. It is typically designed to provide protection against high spikes of voltage and very compatible with sensitive equipment.


Intermatic AG3000 120/240 VAC

Intermatic AG3000 120/240 VAC

The HVAC surge protector manufactured by Intermatic Incorporated is a heavy-weight yet smart surge protector that weighs around 5.5-kg. It is made-up of plastic and works perfect at 120 Volts. It offers a gentle circuit-board that can destroy itself in case of a surge protecting the equipment it is attached to. The surge protector is not compatible with all types of equipment but it works very well for Air Conditioners. It has a LED light that turns green when the surge protector is working correctly and it goes off when the service is off indicating that there is some problem with the device. It is mostly suited with Type-1 and Type-2 AC. It offers 3-modes of surge protection i.e. L-N, L-G and L-L. The enclosure is UV rays resistant and is watertight that protects the device from rain water.

We hope this article will be helpful for you if you have any suggestion or query, Contact Us. We’ll be very happy to help you out.

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