Discuss Wylex Compatibility in the Electrical Tools and Products area at ElectriciansForums.net

mattg4321

mattg4321

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Anyone know if the reduced height, switched neutral Wylex RCBO's will fit in this enclosure? Planning to rip the all the devices out and start again with all RCBO, but don't want to change the enclosure. I seem to remember the newer Wylex boards have a different shaped flap on the lid?

Maybe one for @westward10

IMG_9403.jpg
 
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mattg4321

mattg4321

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Me I would put a new lot in including the metal board if the client can afford it.
In this particular case it’s going to take a lot longer to do that as the board is bushed onto trunking in multiple places. There’s nothing wrong with the enclosure. It’s only about 3 years old.
 
AJshep

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Depends on the busbar.
The newer wylex miniture RCBOs only fit on the finger busbar as they don't have the slit in the front, also the busbar does have a kink in it where it connects to the L out of the main switch.
Trouble is the older Wylex busbar isn't as easy to get hold of, they do sell a AFDD busbar though.

Hager busbar is much easier to get hold of, you could change all the internals to Hager if changing the CU is going to be awkward.
 
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mattg4321

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Depends on the busbar.
The newer wylex miniture RCBOs only fit on the finger busbar as they don't have the slit in the front, also the busbar does have a kink in it where it connects to the L out of the main switch.
Trouble is the older Wylex busbar isn't as easy to get hold of, they do sell a AFDD busbar though.

Hager busbar is much easier to get hold of, you could change all the internals to Hager if changing the CU is going to be awkward.
Not sure if that would be permitted as it’s a wylex enclosure?

It’s very annoying how Wylex keep changing all the parts so they are not backwards compatible every 5 years or so. It’s mainly why I don’t use them!
 
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mattg4321

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I suppose I could rip it all out and start again with wylex finger busbar. Probably the best option.

The other problem if I fit Hager is will the front cover even line up over the devices?
 
HappyHippyDad

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It sounds like t he chap is frustrated with the tripping. I would just find the fault and fix it.
I'm assuming this isn't a wylex board otherwise you wouldn't be asking if it was compatible with wylex. In that case, you are swapping out one 'wrong' manufacturer for another wrong manufacturer.
I can understand it if the chap simply wants RCBO's to make future tripping less of a hassle though.

edit.. seen your other posts. I would probably take along all the bits needed in case you have to take everything out, but would try the wylex RCBO first in case it fits. Couldn't you use the older wylex RCBO's?
 
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mattg4321

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It sounds like t he chap is frustrated with the tripping. I would just find the fault and fix it.
I'm assuming this isn't a wylex board otherwise you wouldn't be asking if it was compatible with wylex. In that case, you are swapping out one 'wrong' manufacturer for another wrong manufacturer.
I can understand it if the chap simply wants RCBO's to make future tripping less of a hassle though.

edit.. seen your other posts. I would probably take along all the bits needed in case you have to take everything out, but would try the wylex RCBO first in case it fits. Couldn't you use the older wylex RCBO's?
There is no fault. It’s almost certainly an accumulation of earth leakage. I’d rather use the newer ones as they’re easier to work with!

I think I should be able to replace all the internals and pull the existing busbar out too. Then replace with new rcbos and new finger busbar.

I think the enclosure shown will have the busbar type that slots under the screw. Should’ve opened it up really 🤦‍♂️
 
HappyHippyDad

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There is no fault. It’s almost certainly an accumulation of earth leakage. I’d rather use the newer ones as they’re easier to work with!

I think I should be able to replace all the internals and pull the existing busbar out too. Then replace with new rcbos and new finger busbar.

I think the enclosure shown will have the busbar type that slots under the screw. Should’ve opened it up really 🤦‍♂️
I've definitely started coming across this more over the past couple of years (i.e accumulated earth leakage tripping a dual RCD or single RCD board).
I was a bit behind everyone with singing the praises of RCBO boars, but I would say 95% of the time I fit RCBO boards now. The only time I fit the dual RCD is if the customer specifically chooses that due to cost.
 
happysteve

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If it has a "balcony style" (in Wylex parlance) bus bar, i.e. the one that fits under the screws rather than pokes up into the cage, then you might have a problem. Those with balcony bus bars only have half a DIN rail (the top half), when you place the protective devices into place the balcony bus bar is structural, keeping the bottom half of your devices fixed in place. So if you get all new devices and a new finger bus bar, then there's nothing to keep the bottom half of everything in place.

You could of course get the full height Wylex RCBOs, these are Type A, unfortunately they are not switched N, and I see it's a TT system so that may be your consideration.

Some of the more recent Wylex DB's - the "L" range (e.g. NM1106L) have a fixed, finger bus bar on the bottom and half a DIN rail, these are compatible with the newer devices. Unless the DB is one of these, or unless it's aleady got a finger bus bar of some sort, then you're out of luck.
 
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Having the PV system on the load side of other circuits' RCD protection is not good practice either! Is it that bank that keeps tripping by any chance?
 
westward10

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Can't find any info on PEP but I would say the rogue component is the Wylex rcd which doesn't seem to sit correctly and probably replaced the original 60947-3 switch.
 
suffolkspark

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I agree with @suffolkspark that doesn't look like Wylex. The cover door looks too big, the embossed ON/OFF and CE mark is not a Wylex thing and the cover screws are off centre.
Yea I suspect its a PEP board (premium electrical products) with a 100ma wylex slung upfront, which is kinda correct given its TT as I see a lot of metal dual rcd boards on TT with no 100mA upfront, but I bet its not time delay, and obviously it's wrong brand. @OP PEP do do rcbos so that's probably going to be your route if your keeping that enclosure and get a PEP main switch back in it, can only see them on ebay from a quick look though
 
AJshep

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Not sure if that would be permitted as it’s a wylex enclosure?

It’s very annoying how Wylex keep changing all the parts so they are not backwards compatible every 5 years or so. It’s mainly why I don’t use them!
Don't think that's a Wylex enclosure. It's a PEP enclosure. Ive only ever seen one once and that was on EICR a few week back.. Funny enough that had a few mixed mcbs too.
 

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