What do I need to replace this - photos

[sws]

Hi
Have the following setup in a distribution box supplying a swimming pool. One of the 16A switches (4th from right) has died - 240V goes into it, but nothing comes out! I assume this is just an isolator switch fed by the rcds on the left and has no trip function itself? Any suggestions as to what I need to use to replace the switch?
Thanks

 

[topquark]

I hope this set-up ''isn't'' controlling the swimming pool pump, that is normally done via a S/Pool control panel which would include the pump motor starter c/w overload module. It will also control any under water pool lighting, along with any heater control modules.

So Sws, ....What is this CU set-up controlling???

The it I was refering to was the breaker, not the CU in the picture, it's a sub main feed.

 

[Deleted member 26818]

Looks like there are two MCBs in series for each circuit.
The first ones controling the line, and the second ones controling both line and neutral.
To my mind, you should be able to replace the whole lot with a 6 way CU with an RCD as main switch and four MCBs.

 

[paulanderson22]

an electrician!

 

[aptsys]

Looks like there are two MCBs in series for each circuit.
The first ones controling the line, and the second ones controling both line and neutral.
To my mind, you should be able to replace the whole lot with a 6 way CU with an RCD as main switch and four MCBs.

Nope. They are 16A DP isolators, otherwise there would be markings for the curve and type of protective device.

 

[Had8Lives]

Think I might have noticed something that no one else has. Is the enclosure plastic? If so, there appears to be NO means of main earth. These needs checking by a qualified sparky!

 

[topquark]

Think I might have noticed something that no one else has. Is the enclosure plastic? If so, there appears to be NO means of main earth. These needs checking by a qualified sparky!

I'd rather assumed that the banjo connector at the bottom was supplying that?

 

[RWJ]

I'd rather assumed that the banjo connector at the bottom was supplying that?

Second That

 

[Deleted member 26818]

Nope. They are 16A DP isolators, otherwise there would be markings for the curve and type of protective device.

So they are, just bin them then and replace the non-working MCB.

 

[aptsys]

DP isolation might be needed for some other reason. TT supply?

 

[Engineer54]

The it I was refering to was the breaker, not the CU in the picture, it's a sub main feed.

Not at a rating of just 16A, that i very much doubt!! We need the OPs input here, to tell us what this panel is actually supplying, or were just going to continue assuming everything. Like why DP isolators?? If DP isolation is a requirement then why not of made use of just DP breakers instead of the present configuration...

 

[85mick85]

it looks fecked up to me............if i wer you id replace the whole db with a new one with new rcbos........if its a swimming pool your bound to have made a few quid over easter????? you can affored it!!!!

 

[Deleted member 26818]

DP isolation might be needed for some other reason. TT supply?

Got that with the RCD.