Aboard connections

[PaulRainbow]

That looks better as it is a 2 pole RCBO.

Every suggestion i or Alex have made is either 2 pole or SP+N (which also isolates the live and neutral.

Most of the narrow ones are only single pole

That's no longer the case, for instance https://www.garo.co.uk/en-GB/global-search/rcbo. Also SP+N, which are fine.

 

[PaulRainbow]

How about one by Garo?

https://www.screwfix.ie/p/garo-rcbogrb16-16a-30ma-type-a-sp-a-curve-rcbo/470hk

Single pole A curve

Excluding post it's £3.50 more than the correct one i spent 30 mins finding for you.

No offence, but i've had enough now, i'll leave it to you.

 

[st599]

Unless they are SP+N, which are fine.

I thought the recent IET book suggested a double pole was needed if travelling in Europe as they use double poles elsewhere in the supply and don't necessarily follow any conventions over which wire is phase and which is neutral.

I'll check when I get the book back.

 

[PaulRainbow]

I thought the recent IET book suggested a double pole was needed if travelling in Europe as they use double poles elsewhere in the supply and don't necessarily follow any conventions over which wire is phase and which is neutral.

But SP+N breaks live and neutral

 

[PabloPicasso]

Thanks for all your help Paul Rainbow.

I hadn't realised finding the right RCBO was going to be so difficult. I'll order and fit the 2 pole version you recommended

Thanks again.

And a very Merry Christmas to you too

 

[st599]

But SP+N breaks live and neutral

But only offers over current detection on Phase, if I'm remembering correctly.

 

[Alex_Blackwood]

But only offers over current detection on Phase, if I'm remembering correctly.

DP isolator both contacts break together. SP+N the neutral is early make, late break.
I would stick with DP avoids confusion

 

[DipperToo]

The trip curve determines how quickly an MCB will trip in response to overcurrent. A curve is the most sensitive, too much so for a boat. B curve Trips at 3-5 times the rated current and is the most common in domestic installations. C curve Trips at 5-10 times the rated current.

Don't confuse Type and Curve when dealing with RCBOs.

I upgraded my battery charger to a Victron Blue Smart 30A unit. The original 5A MCB kept tripping when turning the charger on as these Victron units seem to take a huge current inrush. Problem was solved with a 10A C curve MCB. Worth factoring in in you are upgrading the consumer unit.

 

[PaulRainbow]

I upgraded my battery charger to a Victron Blue Smart 30A unit. The original 5A MCB kept tripping when turning the charger on as these Victron units seem to take a huge current inrush. Problem was solved with a 10A C curve MCB. Worth factoring in in you are upgrading the consumer unit.

Indeed, i always use 10A MCBs for the Victron chargers.