matt1e uploaded a sketch of the h37xl with the relay
any chance letting me know what you think
thanks
hi les had a quick look this morning and it looks ok to me, only thing I would say is that I would personally put the most frequently used zones on the normally closed contact (terminal 12 on your sketch) this is just to save wear and tear on the contacter coil
Oh and thanks for that DeltaT and you're welcome
Matt