How to Fit a Circuit Breaker (MCB RCBO) to a Busbar. Wylex No Miss Busbar Connection & Quick Release
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- Опубликовано: 30 июл 2024
- How to fit a miniature circuit breaker (MCB) or RCBO to a busbar in a consumer unit (fuse box). Wylex have no miss busbar connections and quick release technology built into their circuit breakers, RCBO's and AFDD’s. In this video I demonstrate how to fit a Wylex miniature circuit breaker and then show how easy it is to remove it from the busbar.
== 🕐 Time Stamps - Cut to the action 🕕 ==
00:00 - Fitting MCB’s or RCBO’s to a bus bar
00:33 - No miss bus bar technology
01:01 - Bottom of the RCBO bus bar demonstration
01:25 - Quick release technology
01:52 - Fitting an RCBO into a consumer unit
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Back in 2015 I did a "four week wonder" course after being made redundant. It dawned on me near the end that I didn't know how to fit MCBs, so I asked to be shown. I think it should be one of the first things you do in these mock up booths, how to build a consumer unit and how all the components work together. I did pass all my exams but didn't go into the trade, regret it now actually.
Massive thanks for sharing your thoughts and experiences 👍🏻
Lovely video as ever. The no miss system is long overdue and has been on precision lab equipment and instrumentation for years to ensure correct connection.
Thanks as always for taking the time to comment 👍🏻
Excellent! Thanks for this. It is worth noting that adding and removing some breakers to get them to pull out or click in one needs to open up the bus bar screw not just a few turns but fully to give a bit of 'wiggle room'!
Another great & simple video explaining MCB's Thanks & keep them coming.
Nice and handy.Wish we had that in Europe.Now we always must tickle with a screwdriver to get it released.. Before that we must unscrew the TWO busbars!!
I like that , should be a standard design for all models.
Great video as always Gaz ❤️👍
👍🏻
Very clear video. Thanks
Short and to the point. Great video. Glad the power was off before you started. 😏
Bless you buddy 🙏
Great kit everything we use is wylex .
I do EICR's for a large housing association (In house).
Been full time electrician 28 years.
The amount of MCB's/RCBO's that have missed the busbar and melted from arcing I've found is scary.
And the daily diy wiring I find no you do not fit a 50A breaker to a 6mm for a shower ffs and it was 101 install method!
Unless it’s swa!
Thank you 😊
Wao very nice sir
Wylex rcbos are nice and going in the right direction. Next up would be a double pole busbar and no horrid fly leads.
I like your thinking 👍🏻
Sir can we mix compatible mcbs with rcbos in one installation ? or there have to be either mcb protected by rcd or just rcbo itself ( like in your case in this video )
???
Hello just watched the video as I need to change one of the mcb’s within my consumer unit. I have no idea about electrics but I know I could easily renew the mcb. My only question is do I need to cut power to the consumer unit so I don’t blow myself through the ceiling? if so how is that done? Any advice would be very appreciated. Many thanks..
Can you find MCB in the latest edition of BS7671??? 🧐
What if we want to connect a wire to the same contact where the busbar contact sits? Ferrule doesn’t fit nicely because of the plastic on the busbar.
If theres no busbar. What size cable could i use to supply it with? And is it panel flex thats used?
Well
Hi. On a regular consumer unit, is everything to the left of an RCD automatically backing up all MCB’s, including new MCBs that go into any free slots? We recently had an electric shower installed from scratch and the electrician put in a MCB, not an RCD. Cheers.
There's technically no 'standard' order of mcb/ rcd positions on the CU. ideally they start with the highest rating from one side and go down in order. It all depends where the split in the busbar is if it's a split unit. The new shower circuit (say40A mcb?)needs additional protection from a 30mA RCD as the mcb will only protect the cable from overload (although a shower doesn't usually overload as its a fixed current). The only downside is if the shower has an earth fault then all the circuits protected by the rcd will also stop working ( and vies versa). This is why individual RCBOs can replace MCBs to protect each circuit individually with earth fault AND overload protection👍
Hi, if I turn off the ELCB, will there still be electric current flowing through the bus bar? I'm planning to replace one of my faulty circuit breaker.
What is the green 3 terminal block at the top of the SPD cheers
Do you need the power feeding the cu off? I don't have a switch from the meter to the cu.
Main switch off 👍🏻
❤how do you add a new consumer unit to your garage. 😊
Very nice overview video but the subtitles on the video should be at the top of the screen
Please i want to ask you this question; what's the right order in which you should arrange your circuit breaker in your consumer unit. should it be from the lowest breaker to the highest or highest breaker to the lowest and why... Thanks
I personally now would split up my heavy loads. Eg EV charger next to lights then a space then cooker next to lights etc.
@@GSHElectrical Thanks for your immediate response. I really appreciate it
Can I use 4mm jumper if I don't have a bus bar? Thanks
Sadly no 👍🏻
@@GSHElectrical oh thanks. So what's the size of cable that is exactly equal to the size of the bus bar.
Elisha Tech As a bare minimum, kindly use a Comb Busbar. Jumpers are unreliable.
@@elishatech4600 The busbar is sized for the worst case scenario and must be able to take the main fuse rating which is generaly 100amps only use jumpers if you want a fire
Sir kindly spot me plz