Normally on bell push

[Peterwhayward]

Can anyone advise where I could obtain a chrome “ normally on” switch plate. Sorry if I’m not being very clear but the switch needs to be momentarily off when the switch pressed, the opposite to a bell push.
Thanks

 

[Squid]

I have built a hidden door book case for a customer, from inside the room there is a micro switch operated by the movement of a book, however on the other side ( the back) of the book case is a hall and my client wants a light switch looking switch to match all the others in the hall ( which is the item I’m looking for).
As you ask , do you think that if I use a 1 gang 2 way switch with the live one and live 2 terminals bridged it would result in a momentarily break of current when operated. The door is built so that when the electromagnetic lock is released the door swings ajar.....or am I being stupid. Oh and it is all only 12 volt.

Thats cool, knew a guy in Kensington and in his house you pushed the bookcase in backwards and it was the entrance to his wine cellar.