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RCD Types

RCD types | test and tag | rcd Safety switch

So, you’ve heard about the different types of RCD’s but you have no idea what is going on inside your safety switch? Not to worry, in our latest blog we have the RCD types explained. 

The key to safety in your building is understanding. Make sure you know what type of residual current device you have and invest in regular testing to make sure it is working correctly. You can do that by contacting our RCD tester team today on 131 546. 

RCD Types- Type Of RCD

Types of RCDs ( Safety Switches)

Residual Current Circuit Breaker 

When an earth leakage is detected, this type of safety switch breaks the circuit and stops the flow of power. RCCBs do not respond to short-circuits or over-currents. You will need a miniature circuit breaker to work in conjunction with your RCCB to respond to these issues and provide maximum protection for your circuit. You must know about RCD types

Residual Current Circuit Breaker with Overload Protection

Also known as the RCBO. This device provides protection against earth leakage, short circuits, and circuit overloads. Of the Electric RCD types explained so far, this device provides the most protection. It will help to minimise harm to people as well as damage to the circuitry in your space. You must also know PAT testing which helps you before you test any portable electrical appliances.

Earth Leakage Circuit Breaker 

ELCB’s are designed specifically to work with electrical installations that have high death impedance, They are used to prevent the likelihood of electrical shock. Understanding RCD types is very important.

Portable Residual Current Device

The answer is in the name for this one – this type of RCD usually comprises a plug that is connected to an RCD box with one or more socket outlets. This is different from an SRCD (which stands for a Socket-Outlet RCD) which is a plug with a built in RCD that you can put in the outlet that you want to connect your equipment to. 

Wave Form RCD Types Explained 

Different RCDs are given a waveform classification to help people identify what type of current an RCD can detect. The following classifications are given according to the waveform of earth leakage currents: 

  • Type A – ideal for circuits using AC and DC power 
  • Type AC – trip on sinusoidal residual current 
  • Type B – respond to higher frequency current 
  • Type F – designed to provide protection against residual fault currents comprising composite frequencies 

Each type of RCD that we listed earlier will fall under one of these categories. If you’re a bit confused by the waveform classification and you aren’t sure which RCD you should be using, just get in touch with our team and we can make sure you have the right circuit protection in place. 

RCD Testing Requirements 

Now that you’ve had the RCD types explained, make sure your device is correctly maintained. At Jim’s Test & Tag, we test and inspect residual current devices according to the current Australian standards. 

We can inspect all types of RCDs and let you know whether you have the right equipment in place for your unique needs. Whether you’re working in an office or using portable equipment on a construction site, our team can help you. 

After we’re finished we’ll give you an inspection report with all the information you need about your RCD. Call us now on 131 546.

Did you find our article helpful? Make sure you share it around via social media. We’re passionate about spreading safety and awareness throughout our local communities. Get a quote for the test and tag now

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