Quote Originally Posted by cropwell View Post
The contactor I was referring to seems to be built into the safety relay. Then there is also an e-stop input and presumably other safety measures built in. I looked at the PILZ website for some information, but just got boggled with detail. They quote £360 for the PNOZ. I'd want it in gold for that money !
They are designed for industrial use, nobody like us pays full price, here's one for example £25;

http://www.ebay.co.uk/itm/PILZ-safet...item2ed3f7fc61