Looking for a Time Delay Relay

Maine Doug_21

from Johnstone Supply but in the delay off version. They were stock items.

chuck shaw

I am looking for

a time delay relay. RIBD2421C, or the equivalent. I have checked local supply houses, local electrical supply houses, Radio Shack, and then finally the internet.

I want to run a delay on start, does anyone know of a product, or if you are in the wholesale business, do you take credit cards?

Chuck Shaw

EBEBRATT-Ed

Try WW Grainger they have several types

Larry (from OSHA)

how about this

Hi Chuck

Is this what you are looking for?

http://www.grainger.com/Grainger/wwg/productIndex.shtml

Empire_2

Larry has it

This relay will work. Depending on what you are doing with it. Dont worry about PT #'s what are you doing or what do you want it to do? Every manifacturer has pt#'s dont mean crap...

chuck shaw

I tried two of that model

I picked up two of that model, one i needed, and an extra just in case. I tried the first one, and it didn't work, would not "time out", so I tried the second, it did the same thing, I don't think two in a row out of the box would be bad, so I believe that I was misapplying the product.

It is a pretty involved story. The bottom line, is that I have trying to hold off boiler ignition for about 30 seconds. I would much prefer to use a relay, that will give definite isolation.

Chuck

Ken D.

Time Delay

You could also use an electric heat sequencer or a thermal relay (Thermo-Disc or Klixon). The part number you quoted is made by these people; Functional Devices Inc. 310 So. Union St. Russiaville, IN 46979. You can call them and ask for a distributor in your area. Hope this helps.

Rich_23

Huh...they sell a post-purge timer that would be great to keep circulators running for a few minutes after each cycle. But their relays are for 24 volts, whereas most circs need 110v...anyone know of a post-purge relay for 110v?

Larry (from OSHA)

OK how about this

alright if the easy way won't work, maybe this will:

http://ecatalog.squared.com/catalog/173/html/sections/21/17321022.html#1013956

Weezbo

LSR from SCAN DATA ?

logical sequencing relay ? *~/:)

Cliff Brady

Solid State Delay on Relays

I used one of these for a delay off on a bathroom fan wired with the bathroom light. One max rating though.

http://www.automatictiming.com/pages_atc/solidstateoutput.html

Delay on:
http://www.automatictiming.com/pdf_div/tsc100_data.pdf

edit: from off delay to on delay

tim smith

tim dealay problem

Those time delays generally work, I might suggest you rotate your connections, line and load need to be hooked up correct. Tim.

Mike M.

Magnecraft sells what you're looking for. Here's the spec page:

www.magnecraft.com/products/e104_sec4_pg10-11_TDR.pdf

They're available from Mouser Electronics:

www.mouser.com/catalog/624/1279.pdf

You'll want model TDRSRXB-120 if powering off 120VAC or TDRSRXB-24 if powering off 24VAC (either model will switch up to 12 amps of 120VAC to control a circulator). With the square base series you can hook up Quick Connects directly to the relay. You need to understand boiler wiring to know where to put it in the circuit of course. I have one of these running a three minute circulator post purge on my boiler. Works every time.

Mike M.