Many thanks gents when I'm back at home I'll have a look inside. It is next to a very old and hopefully disconnected fusebox. Photos to follow but thats really helpful, I have only just joined this forum, thank you for the swift replies
Just checking over a bungalow originally built 1963 that has had a lot of modifications done in 2003 and also has a detached garage with power to it. Found the fuse box but there is also this additional box with what looks like a circuit breaker switched 'off'. Any ideas please