Buy PACKARD PR290Q Fan Relay 24 VAC Coil SPST NO Contacts

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Very quiet, no hum at all. I am using it to adapt a Nest Thermostat to a millivolt system with a 24 volt AC transformer.

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I needed a slave relay for my Toro irrigation controller to turn on the lake pump relay.

Worked like a charm and it doesn't hum that bad.

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The device works as expected. I did also note a slight buzz but it was the back plate vibrating a bit against the plastic body. I dab of silicone did the job.

Honest reviews on PACKARD PR290Q Fan Relay 24 VAC Coil SPST NO Contacts

Used as a replacement on my furnace been running a month now, works fine.

Only issue is sometimes it makes a buzzing sound, I thought it was failing

but just seams to be normal for this relay.

I recommend it unless it is used in a location where the buzzing can be heard

as that might become annoying.

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Received very quickly. Used this relay to control an inductor fan using the 24 volts from my thermostat. When the fan kicks on it automatically kicks the relay and turns on the inductor fan, which I purchased on Amazon as well. The connections are clearly marked, beware that if you want to turn something on then you need a normally open relay and if you want to turn something off then you need a normally closed. Well this was my case anyhow. The relay is working at the moment and seems to be working well