Phone Relay

[ptonsparky]

Customer has a hornrelay that pulls in when the phone rings. POS has worn out after 40 years or so. Any one have an idea for a replacement?

 

[dhalleron]

These are kind of expensive and I don't know where they are normally sold. Radio Shack used to sell something like it.

http://edwards-signals.com/index.cfm?pg=2&level=20&sid=0

 

[LarryFine]

Do a Google search for "phone relay switch" and variations.

http://www.hobbyengineering.com/H1494.html

http://cgi.ebay.com/Krown-K-TS082-L...498?pt=LH_DefaultDomain_0&hash=item5d22850d0a

 

[EV607797]

I think you want a Cooper/Wheelock #CRT-T-40. You should be able to obtain one from any Graybar branch or Target Distributing.

http://www.coopernotification.com/c...1/wheelock_series_xrtexplosionproofrelay.html

 

[G._S._Ohm]

From
http://en.wikipedia.org/wiki/Ringer_equivalence_number

"In the United States 1 REN was formerly equivalent to a 6930Ω resistor in series with an 8 ?F (microfarad) capacitor. The modern ANSI/TIA-968-B specification (August 2009) defines 1 REN as an impedance of 7000Ω at 20Hz (type A), or 8000Ω from 15Hz to 68Hz (type B)."

If you can find a relay that pulls in at less than 90 vac with coil specs as above coupled with a capacitor as above you have your interface circuit.

 

[nhfire77]

the cooper one listed above is explosionproof. If you dont want a $300 bell, try this one:

http://www.coopernotification.com/content/public/en/safety/notification/products/telephone_alerting/commercial_audio1/wheelock_series_utatelephonealerts.html

 

[grich]

Sandman may have something that will work...
http://www.sandman.com/wizard.html#UniversalRingRelay

 

[ptonsparky]

All I have to do is pick the price range. The Edwards hasn't changed in design at all.

Lots of options,
Thanks.

 

[EV607797]

the cooper one listed above is explosionproof. If you dont want a $300 bell, try this one:

The picture shows both models. The model CRT-T-40 is not explosion proof and I assure you that it costs nowhere near $300.00. It is just enclosed in a round aluminum can. We use them all the time.

 

[nhfire77]

The picture shows both models. The model CRT-T-40 is not explosion proof and I assure you that it costs nowhere near $300.00. It is just enclosed in a round aluminum can. We use them all the time.

Well I never use them, I glanced at the page and it said explosionproof.

I see what you are saying

 

[fishin' electrician]

I've used these Wheelock Series WR Warbles before, but don't remember the cost:

Very annoying!

 

[Open Neutral]

Sandman may have something that will work...
http://www.sandman.com/wizard.html#UniversalRingRelay

I endorse Mike Sandman as a supplier; he's been around for years with gadgets that are useful & often unique.

 

[Security101]

I endorse Mike Sandman as a supplier; he's been around for years with gadgets that are useful & often unique.

Me too - definitely sandman, but also check Viking Electronics as I have used their stuff for years - good quality products.

http://www.vikingelectronics.com/products/view_product.php?pid=170

Jim

 

[ptonsparky]

I ordered the Sandman item today. More than resonably priced.

Thanks all.