Hager RCBOs - difference?

[AndyPRK]

Ok. It’s either red or green to show on off status.

https://www.abcelectronique.com/forum/attachment.php?attachmentid=68757

Seams to be a regulation about it for rcd sockets.

Must investigate my mk rcd as that is different.

Eg

https://www.ebay.co.uk/itm/373414350015

White or red

 

[333rocky333]

There is also the difference that a different two of the three RCBOs have a '3' under the kA rating - and a colon in the name/logo.

View attachment 217090

Is there a T on the first test button

 

[AndyPRK]

On my older mk rcds, if you manually turn them off the flag remains white.

And no these aren’t the ones with the mid position

 

[He who knows]

I thought that one had to consider not just the actual (i.e. as measured) PFC (which will virtually never be >6 kA in a domestic installation) but, rather, the maximum 'theoretically possible' PFC, which, 'on enquiry' the DNO will always say is 16 kA - and that, per 536.4.201, use of 6 kA devices would then only be acceptable if they were part of a 'type-tested' CU to BS EN 61439-3, "including the 16 kA conditional short circuit test" which is apparently in Annex ZB of that Standard (and which, I believe, takes into account upstream protection by a cutout fuse ≤100A). Is that not the case?

Kind Regards, John

https://www.beama.org.uk/static/uploaded/992ea5f3-2044-46b2-9db965480b99d7c8.pdf

 

[He who knows]

In any event, returning to my comment which you quoted, can you actually think of any mechanism whereby having a 'mix of makes' of devices in a DSB/CU could possibly have any significant effect on the breaking capacity/capabilities of any one of them??

Or a non-mix of makes but installed in a tin box made by someone else and internal tri-rated cables sourced from a 3rd maker.