Stop solenoid question

[biggles]

I’m after an actuator for the stop control on a fuel pump, needs to be 24v and have about 30mm of travel, not fussed if it pushes or pulls as I have plenty of space to mount it. Any recommendations on where to look?

that sort of thing, but why 3 wires ?

 

[Netherfield]

One neg one pos, and an aux contact to perhaps operate a warning lamp, or send a signal to a PCB to stop a fuel pump.

 

[spark plug]

I’ve seen that sort of thing on cherry pickers to operate the throttle, might help in your search.

 

[Vincent]

Normally 2 positives a pull in coil and a latching holding coil.

 

[Wisconsonian]

That style has a spring under the rubber to push the rod out to stop, and a coil to pull in to run with two positives as Vincent said, one wired with the starter to pull in, and one wired with the ignition run to hold it in.

If you need less travel, set it up with a stop so it doesn't extend all the way. It must be able to retract fully or the coil will burn out. The one above looks like it belongs on a Cummins B 3.9 with an inline pump, but could be lots of injection pumps. The cummins 5.9 had a very similar solenoid with slightly different mounting, off road equipment from 90's or 2000's with a cummins or komatsu engine would have that solenoid in 24v.