24v transformer to fit Hager CU

[IJWS15]

As above but there is only a single spare way in the CU. It is to power a Ring doorbell.

 

[Echo the husky]

The Ring doorbell PSU supplied with some Ring doorbells, or available separately from Ring, fits a single DIN module way. Though there are arguments saying products not type tested by the consumer unit manufacturer shouldn't be fitted in the consumer unit. Ring also make a matching surface mounted enclosure for their 24V PSU that can be mounted adjacent to the consumer unit.

 

[ericmark]

It seems the power supply for the Hager CU Product Dimensions ‎85 mm (H) x 70 mm (W) x 58 mm (D) so 4 module wide, Part Number ST314 so you will need an independent enclosure.

I do agree one can break the rules and use a third party transformer, the ST301 is two module wide, but 8 and 12 volt.

 

[333rocky333]

Din mounted transformers don't always fit as there designed to fit a section with no bus bar.
Some Ring bells are DC and others AC.
Argos where I got mine sold the new AC door unit but only sold Ring DC plug in power supplies

 

[Murdochcat]

External enclosure next to CU?

 

[Murdochcat]

The Ring doorbell PSU supplied with some Ring doorbells, or available separately from Ring, fits a single DIN module way. Though there are arguments saying products not type tested by the consumer unit manufacturer shouldn't be fitted in the consumer unit. Ring also make a matching surface mounted enclosure for their 24V PSU that can be mounted adjacent to the consumer unit.

FWIW I’ve fitted many door bell transformed into CU’s - it’s not like mix and match circuit breakers

 

[ericmark]

FWIW I’ve fitted many door bell transformed into CU’s - it’s not like mix and match circuit breakers

Yes, I agree, I have also from time to time exceeded the speed limit, but that does not make it OK to tell others to do the same.

 

[SUNRAY]

I once repurposed a small redundant CU, completely filling it with relays of this style

but not as tall, to beyond the width of modules plus a small mains transformer above them for a relay control system. Including a clear perspex window riveted across the opening

During a PIR the point was raised that incorrect relays had been used for the make of CU and quoted to replace them with correct (type aproved)

versions.

 

[ericmark]

I have an adaptable box with Oct base relays for my central heating, does that also not comply? As soon as any non-approved device is put into a consumer unit, it changes name and becomes a distribution unit. And technically it needs to be under the control of an instructed or skilled person. But what about these

used for under floor heating, it calls it a wiring centre, but it's not really, it is filled with relays, so it is a distribution unit, I looked at both instructions and data sheet to see if any BS EN number quoted, and could not find one, so without any standard quoted what is the difference between the wiring centre shown, and a homemade distribution box/wiring centre?

It is like saying you can't have an earth electrode with a TN-C-S system, it is technically correct, as its name changes to another means of earthing. But it is the same thing.

 

[SUNRAY]

I have an adaptable box with Oct base relays for my central heating, does that also not comply?

Of course not... well unless there is some, let's say, 'unusual' type approval on a specific adaptable box

As soon as any non-approved device is put into a consumer unit, it changes name and becomes a distribution unit. And technically it needs to be under the control of an instructed or skilled person.

Yes but... in the application I used it for (redundant from storage heaters) there was only a 6A feed from the adjacent CU and ELV switches controlling LV lights including a small amount of relay logic. It couldn't possibly be described as a CU any more and I feel distribution unit would be a stretch of the imagination too far as it contained no OCPDs and riveting a clear window across the MCB opening effectively converted it to an adaptale box type enclosure and and requiring a screwdriver to open its topped it being either CU or DU

But what about these View attachment 408533used for under floor heating, it calls it a wiring centre, but it's not really, it is filled with relays, so it is a distribution unit

I'd call it a control unit or control box

I looked at both instructions and data sheet to see if any BS EN number quoted, and could not find one, so without any standard quoted what is the difference between the wiring centre shown, and a homemade distribution box/wiring centre?

It is like saying you can't have an earth electrode with a TN-C-S system, it is technically correct, as its name changes to another means of earthing. But it is the same thing.