This is the best I can find at screwfix, they only have a 6a Crabtree
http://www.screwfix.com/p/mk-50a-pull-cord-switch-with-neon/12094#
Am I right in thinking as long as the switch is rated at or above the showers rating it's fine to use?
Just traced a fishy smell in the bathroom to the isolation switch for the electric shower, I found one of the 2 neutral cables had been overheating but I don't know why, it was somewhat loose within the switch but was still sitting within its hole
What could have caused it to overheat...