Hi, thank you for your product enquiry.
The upper section of this British General 2-Gang Combination Plate (white moulded) is a Euro-Module frame with space for up to four 25 x 50mm modules, two 50 x 50mm modules, one 50 x 50mm module + two 25 x 50mm module or one 100 x 50mm module.
The Euro Module range (https://www.bgelectrical.uk/wiring-devices/euro-module) is concerned mostly with sockets, be they power or home entertainment, although recently a few switches have started to be added as well.
Answered by: Luceco Technical Team
Date published: 2020-08-30