RE: Momentary switches

["Paul Gale" <groups@xxxxxxx>]

Don=92t have the details to hand but I did post all this (part nos, prices
etc) about a year ago on the group =96 could try a search for Wandsworth on
Yahoo?

=20

Paul.=20

=20

-----Original Message-----
From: Mark Taylor [mailto:mhctaylor@xxxxxxx]=20
Sent: 04 June 2003 14:02
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Momentary switches

=20

Thanks Paul,

do you have a model name or no of the Wandsworth kit -
I found a lighting supplier that does them but I have
to be able to quote name or number to order.

Cheers
Mark

--- Paul <groups@xxxxxxx> wrote:=20
---------------------------------
A momentary switch is one that only makes contact for
as long as you push/pull or otherwise interact with
it. The dimmer switch that you mention won't be
momentary - push and it makes contact (permanently)
until you push it again and it breaks contact - a
toggle action.



Momentary switches aren't too common as the vast
majority of lighting systems don't operate in this
way. You tend to find these switches being used for
'bell push' or other signaling applications, which is
why a lot of them to be found in electrical
wholesalers have 'push' or pictures of bells on them!
They tend to have a high push resistance (i.e. stiff)
in my experience.



Two makes that are widely used in HA are the type
Clipsal and Wandsworth make.



I have the Wandsworth make all around my house. IMO
they're far more aesthetic that the plastic clipsal
ones and come in a huge range of finishes (I have the
solid metal brushed aluminium type). Pics on the Yahoo
group pics page or on my HA pics website:



http://www.siliconpixel.com/Gallery/HomeAutomation



(in the crown mic album)

Paul.=20



-----Original Message-----
From: mhctaylor [mailto:mhctaylor@xxxxxxx]=20
Sent: 03 June 2003 21:22
To: ukha_d@xxxxxxx
Subject: [ukha_d] Momentary switches



The age old ugly switch issue.

As an ignoramous what makes a switch momentary? Is a
dimmer switch=20
that you push on and off rather than turn on and off
momentary???

Cheers
Mark