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.

perfect to replce the existing one after a storm. I bought several and keep one as stock now

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.

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

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

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.

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.