RCBOs vs RCDs with MCBs

[rodgearing]

In a domestic set up ie average (if there is one) house is there any reason you wouldn't use a RCBO but a MCB and a RCD?
I can't think one
Fred

 

[Guest77]

I've not heard the term "curve board" before.

A cheap enclosure with a lot of space above the dim rail unlike most domestic boards, that said when the regs change they may disappear from the market fella.

 

[Risteard]

Better than it causing a fire of there wasn't the upfront protection

I agree. I don't think much of single pole RCBOs.

 

[rodgearing]

Can you specify the type of RCBO with regards to the number of poles it is switching as that will affect the answer?

Short answer is no. It was a decision I'm in the throes of making as to whether to use a couple of RCDs and MCBs or all RCBOs
The circuitry as I said ain't nufink fancy.
House ring man
kitchen ring main
lights
Water heater
Cooker
5 storage heaters on their own Ccts (TBD)
Washing machine
Freezer
Garage
Phred

 

[Clive P]

Hi,

Yes, cost is a problem. I have just bought for my own place a Schneider board with DP RCBO's from a company in the UK ( no advertising here, but most will know who I mean ). No flying leads Neutral/ Earth, plenty of wiring space. Not used one before, so this is my first use of the product. RCBO's are £13.00 ea so not expensive when compared to other makes of SP RCBO's. It all depends what the customer is willing to pay, all you can do is give them options and let them decide.

Regards.

 

[rodgearing]

The customer is me and would the company you cannot say have an outlet in Saltash?

 

[driverman]

Hi,

Yes, cost is a problem. I have just bought for my own place a Schneider board with DP RCBO's from a company in the UK ( no advertising here, but most will know who I mean ). No flying leads Neutral/ Earth, plenty of wiring space. Not used one before, so this is my first use of the product. RCBO's are £13.00 ea so not expensive when compared to other makes of SP RCBO's. It all depends what the customer is willing to pay, all you can do is give them options and let them decide.

Regards.

Have you installed it yet? If so how did you find it?

 

[Clive P]

Hi, Driverman, not installed as yet, a job to be done in the next couple of months over the winter.

Rob, I'll pm you with details.

Regards.

 

[Guest77]

RCBO's a far better way to go with an older installation and/or a poorly extended property!

Yup good shout, add it to the list for the OP :biggrin:

 

[davesparks]

He's talking about SBS trade sales I think.

 

[not clever]

RCBOs single and not double pole (majority)
Ok I'll give you that one as you say majority, but the sbs rcbo's are DP as highlighte in other threads.
RCBOs expensive compaired to a split dual RCD board fully loaded
£15 (or there abouts inc vat) for an rcbo isnt budget breaking as opposed to other branded single pole units.
RCBOs take too much room up in average domestic boards, not curves though
You've not seen or used the sbs rcbo's then.
RCBOs have horrible white fly leads which look like a ball of wall in the boards and make the boards harder to look neat
Not all.............the ones I use don't have the white functional earth lead
RCBOs have horrible long neutral leads which look like a ball of wall in the boards and make the boards harder to look neat.
As above, why because they are DP but with the added advantage of being the same size as an MCB.
RCBOs are better for individual circuits rather than an RCD covering 5 breakers in a split due to nusience tripping
Correct apart from Nuisance and not nusience


How many more examples would you like?

see my red

 

[davesparks]

SBS RCBOs are not DP they are SPSN

 

[not clever]

The customer is me and would the company you cannot say have an outlet in Saltash?

No if it's SBS he is up north &only sells to trade.

 

[not clever]

SBS RCBOs are not DP they are SPSN

Ok so under fault conditions the rcbo in question trips, now does the line & neutral isolate?

I would take that as DP isolation...............but maybe I'm wrong?
And I'm not being pedantic, If I'm wrong I'd like to know.

 

[Guest77]

see my red

what yu talking bout man, your replies in red are very attractive but so what lol

 

[davesparks]

Ok so under fault conditions the rcbo in question trips, now does the line & neutral isolate?

I would take that as DP isolation...............but maybe I'm wrong?
And I'm not being pedantic, If I'm wrong I'd like to know.

A DP RCBO will detect overcurrent in both poles and disconnects both

A SPSN RCBO only detects overcurrent in
the line and disconnects both

As you say they both isolate both poles but they are different