On 5/14/2014 3:42 PM, micky wrote:
I'm looking at the Mouser Electronics catalog, at DT rocker switches,
and I'm wondering what the difference is between

On-Off-On and On-None-On .

The second is used much less, but, suprisingly, it's used in the same
section, from the same maker, as the first is used.

A guy on the web says ""On-None-On" indicates there are only two rest
positions, making one connection or the other. " but again, the same
maker will have many other DT swtiches marked On-Off, so that's a little
hard to believe. Or is that false too, and None means the middle
position of the switch is not connected to the neon light in the switch,
but Off just means the other loads aren't connected?


I'm also wondering if there is a difference between

On-Off-(On) and On-Off-Mom ?

Mom is spring return.

Is the second a new category for Mother's day? That's today, but I'm
pretty sure this catalog was printed years ago, since i've had it for
years. And again, Mom is used much less, but when it is used, it's
the same maker and the same section where (On) is used.


If one maker uses both terms, it seems like, in both cases here, they
might have different meanings, but I can't think of any.