RCD - RCCB and RCBO Differences explained

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In this video we will look at a common misunderstanding and discuss the main differences between these protective devices. Explained in simple terms with plenty of diagrams and pictures this video will be found useful and informative by many in the electrical trade from new beginners to more experienced electricians and tradesmen.
The following videos from LearnElectrics may also be helpful to you.
HOW RCDs WORK, click on the link below
• HOW RCDs WORK
RCD WHAT DOES IT DO, click on the link below
• RCD what does it do. W...
This video is No.114 on our RU-vid channel where we have videos on a wide range of electrical topics.
To see a full list of all our LearnElectrics videos, click on the link below.
/ @learnelectrics4402
You can also view all our videos by typing LearnElectrics all one word into the RU-vid search bar.
Always work safely, electricity can be dangerous. If you are unsure, stop and seek advice.
This video is provided for guidance only. Every electrical situation is different, please check and ensure that you are applying this learning information to your own individual circumstances correctly and safely. If in doubt, stop and seek competent advice.

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22 янв 2022

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Комментарии : 131

@AK-ru5lt 6 месяцев назад

This man is something else! the way he’s explaining so good sometimes I feel he’s reading my mind because the questions I’m looking he just knew it before I expect Learn electric ⚡️ is good then college!

@learnelectrics4402 6 месяцев назад

Thanks for the great comments, really appreciated. Spread the word about the channel at college. Dave.

@roberto49ism Год назад

G'Day Dave, Where have you been all my life! :) Excellent videos with easy to understand explanations. I'm really glad to have discovered your RU-vid site. Many thanks for all the work you have put into your videos. Best regards, Rob FNQ,Au

@learnelectrics4402 Год назад

Great to have you on board Rob. Lots more to come. Dave.

@JohnSmith-kb5ku 2 года назад

Fantastic devices. Salute to the person who created them. They really have added value to society and also saved lives.

@learnelectrics4402 2 года назад

Yes, technology works. Thanks for watching.

@peterrobinson850 2 года назад

Hi, From an old spark from the 60's. As usual well articulated and well presented, I enjoy watching and love the clear diagrammatic examples. I would have loved to have had you in my old college days, excellent 5 stars. Peter.

@learnelectrics4402 2 года назад

I remember the old college days as well Peter. Why didn't we have the internet when we were learning? Thanks for your support. Dave.

@lkllogjri9310 2 года назад

No Fluff Pure Gold, should be the title of this channel! While most of the channels here are focused on glamour, showing off tools or how much they made or gimmicks - this is simply no fat, no fluff, no fancy nonsense. I also love the fact that nothing is left to chance - fool proof.

@learnelectrics4402 2 года назад

Well, I can't argue with that. Brilliant feedback, thank you so much. Just trying my best to make sure you guys have the knowledge. Its a great trade and its taken me around the world several times. Thank you. Dave

@brencostigan 2 года назад

Excellent video - Thanks 👍 Makes a refreshing change from the usual misinformed videos on this subject.

@learnelectrics4402 2 года назад

Great feedback, really appreciated. Thank you. Dave.

@peanutpotion 2 года назад

The best electrical knowledge videos on RU-vid 👍🏼

@learnelectrics4402 2 года назад

Thanks for the great comment. Much appreciated. Dave.

@seanh5648 2 года назад

Thanks Dave. This is really helpful. Been metal munching on site since my apprenticeship and this has helped me brush up on my old knowledge.

@learnelectrics4402 2 года назад

That's good to hear Sean, the metal munching and the brushing up. Thanks for watching, lots more to come. Dave.

@hoihaihoi 2 года назад

Simple and easy to comprehend. Great

@learnelectrics4402 2 года назад

Excellent comment, thank you Patrick. Glad it was useful. Dave.

@SamJ26. 4 дня назад

Excellent video, thanks

@davidpatterson1574 2 года назад

Excellent explanation Dave, and superb graphics -many thanks

@learnelectrics4402 2 года назад

Thanks David, thanks for watching. Dave.

@fam20242 9 месяцев назад

Thank you Excellent videos with easy to understand explanations. I'm really glad to have discovered your RU-vid site.

@learnelectrics4402 9 месяцев назад

Excellent, thank you for watching it is appreciated. lots more to come. Dave.

@brjin6406 2 года назад

Great video. Really helpful for CB selection.

@learnelectrics4402 2 года назад

Glad it was helpful, that's what it's there for. Dave.

@ashfaqjuna 3 месяца назад

Excellent video, well explained. As an electronic engineer I really appreciate this clear and concise explanation 😊

@learnelectrics4402 3 месяца назад

Appreciated, thank you. Dave.

@mikehardy7060 2 года назад

brilliant, very informative and helpful, thank you very much, now subscribed

@learnelectrics4402 2 года назад

Thank you Mike, glad you found it useful and thanks for watching. Dave.

@cygnus108 2 года назад

Thank you very much for clearing that up....

@learnelectrics4402 2 года назад

Great. Thank you Alex. Dave.

@iraznizam Год назад

very clear and very precise... tq so much

@learnelectrics4402 Год назад

You are welcome, thanks for watching. Dave.

@beemer4950 2 года назад

Excellent video - really useful.

@learnelectrics4402 2 года назад

Thanks for the great feedback, thanks for watching. Dave.

@maksymilianskowronski8651 2 года назад

Thank you so much for this video.

@learnelectrics4402 2 года назад

Glad it was useful. Thanks for watching. Dave.

@geelim2181 Год назад

Excellent videos , thank you ! I have been searching high and low for the explanation of how RCD or RCBO may work in the 3phase motor circuits without a neutral. Worked it out in the end with help of your Kirchhoff's law videos , but it may be a good topic to cover with a separate videos.

@learnelectrics4402 Год назад

Glad it was helpful Gee and your suggestion is noted. Dave.

@kaijiahuang1141 Год назад

Thanks, this is very clear.!

@learnelectrics4402 Год назад

Glad it was helpful Kaijia, thanks for watching.

@lucapuzzoli8363 2 года назад

Great explanation 👌 👍 thanks 😊

@learnelectrics4402 2 года назад

You are very welcome Luca. Thanks for watching. Dave.

@pooryahoseinpanahi407 11 месяцев назад

Thanks,they were greatly differentiated

@learnelectrics4402 11 месяцев назад

You're welcome, thanks for watching. Dave.

@AskCorie 2 года назад

Great video and easy to understand

@learnelectrics4402 2 года назад

Thanks for the comment. Glad you found it useful. Dave.

@kalumprasannaHW 2 года назад

Useful and informative 👍

@learnelectrics4402 2 года назад

Thank you Kalum, appreciated.

@kriszrudi Год назад

very good presentation, thanks for that!

@learnelectrics4402 Год назад

Glad it was helpful, and thanks for watching. Dave.

@x1BULLETfromABOVE1x 9 месяцев назад

Another amazing video, I wish I had these when I was an apprentice

@learnelectrics4402 9 месяцев назад

You and me both. It was text books only for me. Thanks for watching. Dave.

@garyredmond1890 2 года назад

Excellent, as usual.

@learnelectrics4402 2 года назад

Thank you Gary, appreciated. Dave.

@jeffmacharia735 Год назад

Thanks alot sir! Very informative

@learnelectrics4402 Год назад

Most welcome Jeff, thanks for watching. Dave.

@azizurrahman6663 2 года назад

Hi Dave excellent video thank you

@learnelectrics4402 2 года назад

Great Azizur. Thanks for the support. Dave.

@joecondescondes1354 2 месяца назад

Good explanation, thank you Sir

@learnelectrics4402 2 месяца назад

You are welcome, thanks for watching. Dave.

@db7174 2 года назад

Thanks Dave great video ! well made video !

@learnelectrics4402 2 года назад

Thanks DB, same initials as mine. Thanks for the feedback. Dave.

@db7174 2 года назад

@@learnelectrics4402 well DB aswell must be a cool bloke too ! 🤗🤗🤗

@stonegrundy123 6 месяцев назад

Well explained. Thanks

@learnelectrics4402 6 месяцев назад

Glad you found it useful. Appreciated comments.

@Dibbo1979 2 года назад

Another great video👍🏻

@learnelectrics4402 2 года назад

Thanks for the support Dibbo, really appreciated, Dave.

@acerot 2 года назад

Thanks for the explanation. I would also appreciate practical pros and cons of using either RCCB+MCB or RCBO.

@learnelectrics4402 2 года назад

Good idea. Its on the list to be done. Appreciated. Dave.

@30mAkills 2 года назад

My brain says that RCBO is a costly combo 💊 beneficial for the manufacturer. Next year some genius manu may mix SPD, AFPD and make it more potent.

@yusofyusof1551 Год назад

@@30mAkills Yes, I 100% agreed . Technologies does evolved over time. It help human mankind life better and safe. Only down side RCBO is that, it's expensive. Hopefully more and more manufacturers or other brand could compete each other, therefore automatically the cost will goes down.

@eliteelektriker6655 2 года назад

Thnx for the explanation

@learnelectrics4402 2 года назад

Thank you, nice feedback. Dave.

@WaschyNumber1 Год назад

Very nice video, know I understand the difference. The rcbo is than the best fuse for any hobby build device. 🤔 😊

@learnelectrics4402 Год назад

RCBOs combine overload protection and additional protection and are competitively priced now. Dave.

@smartchip 2 года назад

Good video, thanks,

@learnelectrics4402 2 года назад

Thanks for watching, appreciated. Dave.

@kingofthetrowel1725 2 года назад

Nice one dave 👍👍👌🙌🏻

@learnelectrics4402 2 года назад

Thanks for the support. Appreciated. Dave.

@ifyougetstucklookitup237 2 года назад

Thank you.

@learnelectrics4402 2 года назад

Glad it helped. Thanks for watching. Dave.

@malachygallagher4936 2 года назад

Hi Dave Excellent as usual! Rgds mg.

@learnelectrics4402 2 года назад

Thank you Malachy, much appreciated comment. Dave

@o-techtips3871 2 года назад

Thanks bro for ur info

@learnelectrics4402 2 года назад

My pleasure, thanks for watching. Dave.

@krazylad84 2 года назад

Excellent thanks

@learnelectrics4402 2 года назад

Thanks for your support. Thanks for watching. Dave.

@Jenito120 6 месяцев назад

Well explained

@learnelectrics4402 6 месяцев назад

Thank you, appreciated comments, Dave.

@ashenafimesele7443 Год назад

Thanks!

@learnelectrics4402 Год назад

My pleasure, glad it was useful. Dave.

@NA51RR Год назад

Excellent

@learnelectrics4402 Год назад

Thank you so much, appreciated. Dave.

@bigbud1978 2 месяца назад

So we’ll explained 👏🏻

@learnelectrics4402 2 месяца назад

Thanks for watching. Dave.

@mb-electricalservices 2 года назад

Any chance of a door automation video? Safety sensor, door contact, push buttons etc etc and how they are wired. That would be cool. 👍

@learnelectrics4402 2 года назад

That sounds interesting. It's now on the list. Dave.

@stuartshutt4118 2 года назад

Not really important but the current flowing in the coils wrapped around the toroid creates a magnetic flux not current (with the exception of eddy currents which are just parasitic losses and not relevant to the operation of the breaker). The toroid can simply be considered as a closed magnetic device where the live and neutral windings act in opposition to create zero magnetic flux and hence create no voltage in the tertiary sensing winding. As I stated at the start, not important to the operation of the devices but we typically do what we can to prevent currents flowing in any transformer core as this simply generates unwanted heat and power loss. Otherwise a great video and judging from the other comments has helped the community.

@learnelectrics4402 2 года назад

Great response and info. Thanks for watching. Dave.

@MalikARAwan-ep5wx 2 года назад

Thanks sir

@learnelectrics4402 2 года назад

Thank you Malik, great feedback, appreciated. Lots more to come. Dave.

@williamlau7179 2 года назад

I am glad to be your student. A few days ago, I was struggling to understand this subject. Now it is very clear. Planning to change a 3-phase 63A 300mA rccb to 30mA for adequate safety (by technician). 300mA is a dangerous level. Also, installing a rcbo 1p 20A 10mA for water heater (law requirement). Not explained: rccb type AC & type A. Type A has added protection of pulsating DC leakage currents. Because of having inverter air cond and fridge, some claimed I should use type A rccb. Is it right? Most people are using type AC RCCB & I did purchased type AC. Which should I use? Thanks

@ice5842 2 года назад

Please buy rcbo instead of rccb

@williamlau7179 2 года назад

@@ice5842 yes, you are right, thanks.👍 My main rccb in the DB has main isolation fuses, and 40 MCB at downstream. So overall they act like rcbo for each electrical items. But for instant hot water shower, I need to ensure adequate safety protection, so I am installing additional rcbo 10ma for it. New main rccb is 30ma (changed from 300ma). If new rccb is sensitive during lightning, then will install a lightning arrestor in DB.

@learnelectrics4402 2 года назад

Thanks for watching William. We have a video planned for types of RCB. 10mA devices are very sensitive, check your circuit leakage as anything above 5mA may trip the RCD/RCBO. Keep watching and thanks for the support. Dave. Dave.

@mohammedhagazy8017 Год назад

Thanks

@learnelectrics4402 Год назад

Very welcome. Thanks for the feedback.

@linossinkala7840 Месяц назад

Thankyou

@learnelectrics4402 Месяц назад

And thank you for watching. Dave.

@pietnel6077 11 месяцев назад

I have a question on 3phase RCB. Why doesn't small load imbalance between the 3 phases and neutral not cause the RCB to trip? All phases are not always equal and if the load is perfectly balanced there is no Neutral current. How does it sense the residual current in these cases?

@learnelectrics4402 11 месяцев назад

The electrical wizardry used in RCDs is amazing. Without going into great great detail, its sometimes best to just accept a basic understanding. Thanks for watching, but I will think about what you have said. Dave.

@robinj9631 Год назад

Is it ok to use a 4 pole RCBO for a three phase circuit supplying and industrial refrigeration unit , rather than having a 4 pole RCCB with a 4 pole MCB ? Great video.

@learnelectrics4402 Год назад

Yes, should be if the RCBO is the same amps and type ratings as the MCB and the same RCD trip current as the RCCB Thanks for watching. Dave.

@reeceyp1972 3 месяца назад

If a consumer unit is only covered by an rcd as a main switch, would you c2 it as it has no over load protection.

@learnelectrics4402 3 месяца назад

Correct, it would be a C2 as its not dangerous if there is no fault on the system. If a short circuit appeared, or an overload, then you would need the circuit to disconnect and the RCD on its own might not. Take a look at this video on the C codes. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-7lpkJFhq1E0.html

@jovb143 Год назад

Our home electrical system has d following voltages: L to L = 240V ; L to N = 120V. I use 120V for my US bought power tools and 220V for all d rest. Looks like RCBO and RCCB are not applicable for this, aside from MCB do u have any suggestions where I can have the protection of RCD?

@learnelectrics4402 Год назад

For new domestic work in the UK we should be RCD protecting all circuits. Thanks for watching, lots more to come. Dave.

@Shoo8601 Год назад

Can I change a 63A RCD to a 63A RCBO? Will I have the same or better protection to the house?

@learnelectrics4402 Год назад

Two different devices. An RCBO is for just one circuit with inbuilt overload protection. An RCD is just an RCD and can give additional protection to several circuits. Have another look at the video, Dave.

@khalidrash5814 Год назад

Hello sir, Should the outdoor service switch be greater or smaller than the main breaker in the consumer unit? I'll be so grateful if you would send me back. Thank you, Khalid

@learnelectrics4402 Год назад

The switch is just a switch, its not monitoring any current. As long as the switch is rated greater than any current that will pass through it that is ok. If its the main switch, in series with the main breaker, yes, the switch will need a greater switching capacity.