"William Sommerwerck" wrote in message
...
I raised this issue sometime last year. The terminology can be confusing.

ON-OFF-ON means the switch has three positions. In the center position,
none of the contacts is closed.

An ON-(none)-ON switch is a regular DPDT switch. It has no central third
position.

Does this make sense?


Rather less than the 'proper' designation of SPDT or DPDT that most
engineers know and understand ... :-(

Why change something that had perfectly well understood meaning, for
something open to debate and needing interpretation explanation ? Makes no
sense at all to me.

Arfa