cheers for all the prompt responses guys! its not porc, its any bloody tile!
i've got it against a ts plus to check for similarities but because the breakers seem to be different i can't seem to get them to mirror each other in motion.
i wasn't sure whether you could service the breaker or adjust the lever action.
once again, thanks for the welcome, it makes a nice change to getting your head bitten off for only turning up with your begging bowl grovelling for help

cheers