Packard - Packard - PF42440 Control Transformer Class Ii Foot Mount, 40V/24V

Easy swap out. Indicator light on circuit board was not functioning so I immediately knew it was the transformer. After a few voltage tests, I decided to order this. 5 min swap out and my unit works better than before.

This transformer is heavier than you might expect. I'd say at least a lbs.That being said it's perfect for the heavy duty transformer that I need. It's weight comes from the great copper windings. This device is not cheaply made.I am using it to push 11 sprinkler valves at one time that run on 24vac and are 110ft away from this transformer. I am using a raspi pi and some relays to be as cheap as possible and have wireless controller where ever I am on the property. The pi has a 24vac to 5vdc transformer and I have no problems at all powering it, and all the valves.This device does not heat up as much as I expected, and I didn't need a star capacitor as the output is a super clean and strong sine wave.All valves open perfectly and strong for over 20 minutes without issue.I saved a ton of money building a DIY sprinkler system and this transformer fulfills all my 24vac electrical needs.

Worked like a charm - saved me $60. Thanks - arrived on schedule too btw.

Best price on the internet. Bought the transformer to repair my sister-in-laws furnace. Worked perfectly on this application and would work on many more, Versatile dual voltage primary with a 24V output. Half the price of local HVAC parts houses. I will buy again when needed

DIY repair job on Home AC condenser relay circuit still works well. the problem ended up being a defective relay in the AC condenser, but replaced the transformer anyways because it was over 20 years old rusty.

I use this control transformer in reverse, to power 110 volt ac fountains from a 12 volt ac outdoor lighting unit that is transformer powered. By connecting a 12 volt ac source to the 24 volt input, and using the 220 volt tap, it provides a nice 107 volt out put for the 2 water fountain that are rated at 6 watts each. Much easier to run low voltage line to the remote fountain location then establishing a 110 volt outlet. I do add an waterproof box for the transformer and hardwired to the fountains.

Just what was needed a small compact step down transformer 120 down to 24 volts. Had purchased a DIY security doorbell system (Eufy Security) and needed a new door bell step down transformer of 24 volts for it. This was ideal because not only the voltage, but it's ideal small compact size! Even included 2 wire nuts for the step down side, along with 2 cement anchor screws !

My father has had a very old bell school or fire bell in his basement for years now that I've had my eye on. I finally took the time to buy the transformer so I could hook it up for him and the trans works as it should. Bell is now in my garage hooked to a big red pushbutton that we use to announce the start of dance parties with the kids.