Consumer Units/knockouts

[rugbyspark1]

Hi there folks,
Have been using BG boxes for years, now getting fed up with all these knockouts at wrong size for 3rd ed glands.
Have complained to BG but they dont reply, started back with MK but their just the same !. Have any of you complained to these Mfg to get their knockouts at the right size so we dont have to modify ?.
Also found the BG High Integ Units difficult to fit RCBO's, cable too short and mains bus too small for connections.

 

[Andy78]

Knockouts wrong size ? Chances are you're doing it wrong.
What are 3rd ed glands ?
Try using another brand rather than trying to get a manufacturer to change their design for you. You'll be waiting a while.

 

[littlespark]

I think he means 3rd amendment glands. basically big stuffing glands with 3 holes in the rubber for the tails.

 

[Andy78]

I think he means 3rd amendment glands. basically big stuffing glands with 3 holes in the rubber for the tails.

Tails glands are nothing to do with the third amendment, they are not required by it.

 

[Ib≤In≤Iz]

knockouts at wrong size for 3rd ed glands.

That's what a holesaw is for isn't it?

 

[Rpa07]

Or a cone cutter at least - essential bit of kit.

 

[Rpa07]

I find some of the knockouts for the metal equipment difficult to punch out especially not wanting to deform the casing. Perhaps I need more practice!
Or as Tel will say “you need a bigger hammer”!

 

[Electric Magic]

Or a cone cutter at least - essential bit of kit.

Or just buy these... 40mm/32mm Tail Kit - 2 x 25mm Tail & 1 x 16mm Earth Cables - https://www.tlc-direct.co.uk/Products/WKTKP40R32.html

 

[Ib≤In≤Iz]

I find some of the knockouts for the metal equipment difficult to punch out especially not wanting to deform the casing. Perhaps I need more practice!
Or as Tel will say “you need a bigger hammer”!

Yes some of them can be a bit stubborn can't they. Punch + hammer + one hard hit usually works for me most of the time.

 

[Rpa07]

I keep forgetting to get me a couple of Q punches of different sizes, great for ‘busy’ trunking but nothing wrong with a ‘rag’a’lag’ noisy holesaw when empty consumer unit.

 

[polo1]

Q max punch for me every time for new holes, cone cutter to enlarge existing. Hole saw as a last resort.

 

[telectrix]

i use my teeth.

 

[westward10]

A thread on how to make holes, I am glued to this.

 

[ipf]

i use my teeth.

Sure way to dent ure metal casing.....

 

[Rpa07]

Yet you keep coming back!

A thread on how to make holes, I am glued to this.

Anyway, it would be rude not to reply.

 

[littlespark]

It was so much easier using teeth on the plastic boards.

 

[Rpa07]

Judging by some of the photos on the thread ‘Dodgy Trade Pics’ I think some have been for quite a while!

It was so much easier using teeth on the plastic boards.

 

[Dave OCD]

Never mind all that palaver with glands, just mount the CU on a nice new backboard spaced off on small battens then bring everything in through the big rear knockout/s [Suitably grommeted of course].

 

[freddo]

There is one company selling consumer units that can be supplied without knockouts. Forget who though. I wish they all did that, the holes are either the wrong size or in the wrong place. I usually use my hydraulic punch set as it can do square holes too.

 

[Leesparkykent]

There is one company selling consumer units that can be supplied without knockouts. Forget who though. I wish they all did that, the holes are either the wrong size or in the wrong place. I usually use my hydraulic punch set as it can do square holes too.

Hager.