Help with 120VAC to 24v DC

[Ocean80]

I need a relay or contactor to control a 24V DC pump from a 120V AC source. This is for a watermaker installation. The control board for the feed pump is 120V but I am going with a 24V pump and would like to keep the automatic control option.

Any ideas, part # and how-to will be much appreciated

Cheers.

[RONDO]

Hi this may help if you know the amperage required to run your pump .

[Ocean80]

Thanks for the link. The pump draws about 10A.
Looking at the models on your link, it looks as the output is 120 ac and input 24 dc. I would need the reverse?? I need to go in with 120ac and out to 24dc

[RONDO]

The control voltage is variable AC on all these relays .

[Dsanduril]

Solid states are nice in that they don't have bits to corrode, but not terribly efficient. I like these in a marine environment:

McMaster-Carr

although you still have to worry about corrosion between the relay and the socket. Lots of other options out there depending on where you are/what suppliers are nearby.

Just want to be clear that it is a relay you are looking for? You have an existing 24VDC circuit and are just looking to turn it on/off using a signal from the 120VAC output?

[RONDO]

I think that the relay that Dsanduril chose is too weak for 24v @10 amp i would go with a much more robust relay maybe 1hp minimum

[Dsanduril]

I chose it because the OP said 10A, and the relay is rated 12A@24VDC. But certainly you can get a higher rated relay or contactor if needed.