How Deep does Back Box need to be for the Sonoff ZBM5 (86) UK

Hello all

I Hope you are Well.

I am looking at Installing the Sonoff ZBM5 Smart Switch in all Rooms, however, I am unable to find any information on how Deep the Back Boxes need to be.

I know I am going to have to Replace the current Back Boxes as they are all 25mm Deep, or less.

Has anyone got these Switches and if so what Depth of Back Box do you use?

Thanks in advance

Kevin

Not too hard to find, really…

Hello

Thanks for the Reply.

I did find those Dimensions, however, is that the Total Depth or…

Kevin

IDK where you live, but over here (Belgium), boxes are typically 40 or 50mm.
I’d go for 50.

Hello

Thanks for the Reply.

I am in the UK.

Kevin