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Aircon Parts

What is an Aircon Isolator and What Does It Do?

What's in the article?

If you have an air conditioner at home or at the office, chances are you’ve become curious about the switch device located beside the machine or by the aircon’s outdoor unit. But unlike any normal switching panel, this device has a toggle that’s usually shaped like an inverted letter “V.”

Also read: Complete Parts of an Aircon

These switching devices are called aircon isolators and they are extremely helpful in — you guessed it — isolating the electrical input and output of your unit.

But apart from that, what does an aircon insulator really do and why is it highly recommended by experts? In this article, we take a closer look at the electrical switching device and how it exactly benefits your air conditioner unit.


What Does an Aircon Isolator Do?

The isolator is a type of switching device whose main function is to make sure that a circuit or machine is totally not triggered in order to perform the preservation. When installing air conditioners, a lot of people opt to hardwire the unit directly to the main switch board. While this still meets industry standards, it’s generally considered as a shortcut by a lot of aircon experts.


To guarantee safety and reduce the risk of electrical problems, aircon isolators are installed onto the outdoor units of air conditioners. This allows aircon owners to disconnect the unit whenever needed to protect it from risky situations such as thunderstorms or lightning strikes.

Additionally, aircon isolators are also designed and used to prevent home safety switches from tripping repeatedly in the case of a faulty air conditioning system. The isolator disconnects the power supply from the unit the minute it runs into any unusual electrical fault or malfunction. The good news? You can still enjoy normal power even while waiting for an aircon technician to drop by and fix the issue.

Related article: Role of Capacitor in the Aircon System

Where to Get Aircon Isolators?

If you’re on the hunt for the best aircon switch or isolator switch, make sure to check out leading e-commerce platforms or online direct sellers. You can also pay a visit to the nearest hardware or appliance store in your area. Always ask for professional advice and assistance to find out the best option for your air con unit type and electrical capacity.


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Whether it’s HDB aircon installation, office aircon gas top-up or the full scope of repair and maintenance services, our friendly experts and technicians here at Luce Aircon can attend to all your needs. Get in touch with us today and get a free consultation!

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Staff Writer

Staff Writer

This article is written by our passionate staff writers who seek to share our knowledge from our business

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