Home Energy/Environment Here’s Your A-Z Guide to RCD’s

Here’s Your A-Z Guide to RCD’s


The electrical industry is one of the primary industries of our society as it takes care of all the electrical needs and requirements of people, business, and organisations. Since very few people carry a comprehensive understanding of how an industrial site or an industrial equipment functions, it is difficult to comprehend the basic premise of all the imperative tools and devices like circuit breakers, RCDS, Programmable Logic Controllers, Transfer switches and more.

In this article, we attempt to give you a simple yet detailed introduction of RCD’s, an acronym for Residual current Device. So, let us start with the most basic question—what are residual circuit breakers (RCD’s)? and why are they important for the electrical or the industrial sector? 

As mentioned above, intricate electrical systems or appliances are vulnerable to hazardous situations like explosions, electric shocks, fire breakouts, etc. a RCD is exclusively designed to ensure that whenever the voltage levels of an appliance, industrial or domestic, spikes, it automatically takes control and cuts of the power supply.

An RCD actively monitors the current that is flowing through a single or multiple circuits and if it detects some amount of power flowing through a path that is more than the standard threshold, the RCD will switch current off. Also, in case it spots that electricity is flowing through an unidentified object like alien material or a person, it will ensure that the situation does not escalate to levels that demands expert supervision. 

Once youunderstand why RCD’s are needed, you can go ahead and learn more about different types of RCD’s like socket-outlet RCD’s, fixed RCD’s, portable RCD’s and more.Below we have mentioned some of the many benefits of deploying a quality RCD:

  • Since RCD’s are installed in almost all electrical devices, designers have ensured that they are build in a way that requires minimal time for installation.
  • In addition, with easy installation, RCD’sare compact in size which makes them easily deployable.
  • One of the best features of an RCD is that it has an impressive switching capacity, meaning the rating capacity of aresidual current device is much higher than a residual current operated circuit breaker that is provided for short circuit protection.
  • In an event of fault, all poles of the electric system are simultaneously disconnected from the main power supply, simplifying the troubleshooting process.
  • Lastly, as RCD’s have a long lifespan, they need close no repairs or replacements.

Applications of Residual Current Breakers

Whenever a firebreak out occurs it leads to severe loss on several fronts, not only does it have an impact on human life, it also damages all the assets and resources installed in the space. Therefore, most electricians, technicians, and industry owners make it a point to invest in a strong and reliable RCD thatsafeguards the surrounding by providing strong safety measures. We have created a list of some of the many applications that employ RCD’s:

  • Refrigerators 
  • Air conditioners
  • Industrial applications
  • Uninterruptible power supplies
  • Variable speed drives

Before purchasing a quality Residual circuit breaker, we suggest you take some time out for extensive research and collaborate with a renowned service provider in the electric field. They usually have a team of expert professionals that carry all the right tools, equipment, and resources in order to ensure that the installation process is carried out in a smooth and hassle-free way.

In addition, if decide to buy an electrical appliance online from a leading electrical brand, you might find an expansive range of electrical products on impressive rates and discounts.


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