On Mon, 14 Feb 2011 14:04:57 -0600, John Fields
wrote:

On Mon, 14 Feb 2011 13:55:42 -0600, John Fields
wrote:

On Mon, 14 Feb 2011 14:02:12 -0500, "Oppie" wrote:

"Jim Thompson" wrote in
message ...
I can't seem to locate a DP3T switch, toggle or slide that has
ON-ON-ON


I was looking for a 6 pole, double throw relay with 48V coil to replace some
that went flaky in our elevator control panel. They're obsolete and if you
can find them at all, run about $75 each. Found some with a different
footprint and may have to make an adaptor board...
This is for the elevator in my office and I'd just as soon replace the
entire rack of clackedy-clacks with a simple PLC (if only the maintenance
company hadn't stolen the system wiring diagram).

Why not use 3 X DPDT or 2 X 3PDT?

Should be a lot cheaper than $75...

Here's a pretty nice one; DPDT contacts rated for 250VAC @ 5A, 48V
11mA coil, @2.99 each, qty 1.

$9 VS $75 is pretty much a no-brainer, huh?

---
Oops...

It's at:

http://search.digikey.com/scripts/Dk...me=255-1119-ND

---
JF

I would be extremely reluctant to f*ck with the design of an
commercial elevator. A stuck contact, for example, might do Bad
Things, and there could be consequences:
http://www.jurispro.com/category/ele...calator-s-312/

That said, fairly recently I did modify the design of a residential
elevator somewhat (they didn't do a very good job, as it turns out)
but the regulations for residential elevators are essentially
nonexistent, and I'm comfortable with assuming the liability for my
changes in any case. The relays used to switch the motor etc. were at
least quite robust and were not the source of the problems (more of a
symptom when they chattered).