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#173879 01/21/08 07:07 PM
Joined: Sep 2004
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bot540 Offline OP
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At this job I am trimming the whips for the jamb switches were ran to the top of the door. Now I am finding out they only make a low voltage jamb switch for the top. So to get these to work I now need to install a transformer and a contactor right? Does anyone know of a relay that acts as both?(trans and contactor)


Jesus may have been a capenter,but God was an electrician.Genesis1:3
bot540 #173880 01/21/08 07:17 PM
Joined: Nov 2007
Posts: 763
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I'm not sure exactly what you need for your application, but Amprobe used to make a low-voltage relay and jamb switch combo. I used to use alot of them for closet doors in residential bedrooms.
I will try and find the part number.

KJay #173881 01/21/08 07:40 PM
Joined: Jul 2005
Posts: 183
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So if I read the post correctly you are looking for line voltage door jamb switch. IF so, check the Leviton 1865 door jamb switch, 3A/125Volt. Comes with a small junction box to terminate in.

jay8 #173882 01/21/08 08:32 PM
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bot540 Offline OP
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Jay, those will only work when installed on the side of the door.


Jesus may have been a capenter,but God was an electrician.Genesis1:3
bot540 #173883 01/21/08 08:40 PM
Joined: Nov 2007
Posts: 763
K
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Here is the Amprobe relay part number.
You can use those low-voltage roller type jamb switches with it if you have 120V at the fixture you want to switch.
Not cheap as I remember though, around $30.00 each.
You can download instruction manual at Amprobes website.
Hope it's what you need.

Model: RC-120S
Remcon Relay Switch

KJay #173889 01/22/08 12:10 AM
Joined: Mar 2004
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twh Offline
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Re: relay and transformer combination - that would be like one used in a furnace. For example:
http://www.white-rodgers.com/wrdhom/common/ptech/furnace/furnace_06.htm#8A05A-4
Check the rating of the contacts. They may only be rated for motors.

twh #173895 01/22/08 08:20 AM
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bot540 Offline OP
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KJay that is exactly what I need. Thanks for the help everyone.


Jesus may have been a capenter,but God was an electrician.Genesis1:3
bot540 #174034 01/25/08 03:30 PM
Joined: Aug 2001
Posts: 7,520
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About 30 years ago I picked up a Tab book with dozens of home projects, many based around a type of relay which I'd never seen over here at the time, nor anywhere since.

It was basically a relay which incorporated transformer action to provide a low-voltage switching line. The primary winding is fed directly with a constant 120V supply, and the secondary winding forms the control circuit, so when you short the secondary it increases the magnetic field enough to close the contacts.

Does anyone still make these?

pauluk #174043 01/25/08 05:35 PM
Joined: Jul 2002
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Paul,
That wouldn't be a Hysteresis relay by any chance?


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