RCD - sell by date??

[sparkybird]

Had to swap over an RCD today - so used my emergency one I've had in the back of the van for probably 1-2 years (brand new and boxed!). It didn't operate on x1 trip test (but OK on x5), so had to get another. GRRR

Do RCD's have a use by date??? Perhaps the mechanism had been damaged by all those speed humps?

SB

 

[Adam_151]

Did it smell off? (and you did keep it refrigerated didn't you?)

 

[TicklyT]

How many thousand miles has it done?
I wouldn't like to think how many spares I've written off over the years, opening a sealed, but very dog-eared box and pouring out a sad little pile of broken bits before realising the thing had done about 80,000 miles in the back of the van.

 

[sparkyspike]

What's wrong with speed humps? My wife loves them (but only when she's asleep).