RCD input/output

[captainkev]

called to a static caravan today to do some fault finding, first port of call was to check outside supply box and found that rcd appeared to be wired input/output wrong way round. then got thinking does it really matter?

 

[StuSpiers]

Do you think it does?

Do you also think it matters if you reverse the polarity on an RCD?

 

[captainkev]

I always thought it did matter and always wired them input at top output at bottom (checking manufacturers instructions also), but then started looking at a few nearby caravans and their supply boxes only to find they all wired upside down to way I would have done

 

[electric will]

It's not right but, I think the rcd would work but something's telling me the test button wouldn't

 

[sparks1973]

 

[Geoffsd]

So - it does matter.