"Ross Herbert" wrote in message
...

| It seems to me that the OP would prefer to use what hardware exists
| now in order to minimise expense and the complexity involved in a
| complete re-design of what he now has. The relay he is using now is a
| 3 pole changeover unit so depending upon what is currently connected
| to the relay contacts will have some bearing on what he can do in the
| easiest and most cost effective manner.

....

I remember small, inexpensive delays that used an AC clock motor to wind
them up. When the power went off they ran down and switched contacts. I
suggested that previously.

N