Thanks for the reply . . .
That was my local parts supplier's terminology!! I assume he means whether the live or the neutral is switched? or the load is connected to live or neutral?
I'm actually looking for a Sunvic TYJ01A & a Diamond H 27ER1 replacement for which he wants to charge me...
I have a fairly old cooker which is still ok except I need to replace one of the Regulator Switches that controls one of the electric rings. The part is not available.
Question: Can I convert a modern "wired to positive" Regulator Switch so it is suitable for a "wired to negative" cooker. It...