MK "old style" Sentry MCBs

[Nigel Molesworth]

About 10 years ago (guess), MK changed the fittings on Sentry CUs and MCBs etc, the new MCBs don't fit the old CU.

Any ideas where I can get a MCB that will fit?

[Bob Eager]

I bought some Sentry ones a few months ago, and they fitted fine. OK, the switches don't line up with the old ones..

[Andy Wade]

The big change was about 1992, when they changed from Siemens components to Merlin-Gerin. Further changes came around 2002 when they introduced the current rather horrible white bowed-front housings.

MCB retrofit kit 5567s allows you to fit the current MCBs into an older housing:

[Peter Andrews]

Perhaps not quite what you are looking for, but...

Sentry MCB retrofit kit is designed for use when installing MCBs into old Sentry Consumer Units.

[Nigel Molesworth]

Found some, on eBay.