OT: Alternating relay 24vdc coil

I have a need for an alternating or ratcheting relay with 24vdc coil. Each time the coil fires, the relay needs to switch states. I found one made by Time Mark (261DX-24), but my purchasing agent asked for a different make . . . apparently it's a very long lead item.

This thing needs to be as compact as possible to fit inside an OEM enclosure, and the contacts are used for low power 24vdc solenoid coils, so about any contact rating should work.

Thanks,
Paul

I found this one.

http://www.finder-relais.net/en/finder-relays-series-26.pdf

This $23 alternator from Automation Direct has a 120 VAC coil.
http://www.automationdirect.com/adc...trols/Motor_Control_Relays/Alternating_Relays

You could buy one of the cheaper programmable relays rated for 24 VDC power, and program it as an alternator.

There used to be dozens of alternator relays, but the programmable relays have superceded many of the old stand-alone functions.

Omron and many other manufactures have latching relays if you only want 2 positions - latch - unlatch. They are pretty inexpensive. For 2 positions there is generally no need for a ratchet relay.

Touchplate makes a relay like this. Not sure about the coil voltage.

Bob, I think Okie needs a device with an output contact that changes from OFF to ON to OFF, repeating each time the 24 VDC coil is triggered by an input switch. The alternating function could be wired with 2 or more relays (the old "toggle" function, but he would like it in one small neat package).

This is what he needs, except a brand that his purchasing agent will accept. Someone buy him one of these and ship it! (GIT, Paul needs your help!)
http://www.time-mark.com/Alternating-Relays-Model-261.aspx?cp=0&ps=2&CategoryID=6

Paul, contact this Time Mark sales representative:
WAYNE G. PARKER CO.
Jenks, OK
tel 918 299-5026
fax 918 299-6747
[email protected]
www.waynegparker.com

Thanks for the help, guys. It appears we have the TimeMark unit ordered now, my parts guy just didn't look in the right spot for a local distributor.

Lancie's description above is correct. An OEM built a machine for us but sort screwed up one part of the design a little bit and the alternating relay would simplify their design and eliminate a couple of failure prone parts.

Their design uses a single output from a proprietary controller to operate one of two solenoids. They did this by wiring the single output through two proximity switches and then to each coil. Only one switch should ever be on at a time. The switches are 12mm with a 2mm sensing distance and mounted in a poor spot, so they have sheared off the ends of the switches about 6 times in 3 years. The OEM doesn't seem willing to change their software to use two outputs (they have 6 spares) so the alternating relay thing is a band-aid, but for this small bleeding wound, it's not a terrible place to apply one.

Cannot see through the case - rachet relay?

BobB said:

Cannot see through the case - rachet relay?

Click to expand...

Yes, but I think it's electronic and not the old "wheel" looking type.