Hi, The fitting of alternative manufacturers devices into a different manufacturers consumer unit is not recommended as they are not designed or tested for this type of installation and doing so will automatically invalidate the manufacturers warranty on both the consumer unit and device installed.
You could change the Wylex 100A Isolator switch for a Wylex 63A RCD without invalidating the warranties. The Wylex 63A RCD is available from Screwfix. The part number is 82076. If in any doubt we recommend that you contact a qualified electrician.
Answered by: Wylex Expert
Date published: 2017-07-15