Emerson 90-T75C3 24VAC 75-VA Foot Mount Class 2 Transformer

I used two of these for gas control kits (Honeywell/Resideo Y8610U) that required 24 V, 3 A. The transformers worked fine.

This little transformer easily replaced the 30 year old transformer in my air handler. Seems to make everything run a lot smoother now, plus there's actual protection on the circuit so that it hopefully won't kill itself again.

my furnace had started acting up, short cycling the blower fan, on and off with only 5 seconds or so between switching, so i shut it down, popped the access panel open and noticed right away that the 24v transformer was warmer than it should be, so i just took a chance, ordered this replacement, 4 wires connected (don't need the red or orange for my application) and i'm back in business,. Easier, cheaper ,and maybe even faster than trying to get an HVAC pro in my house to do it!

In operation only a month, but the Ring doorbells seem happy. Four input wires which give the option of three different input voltages. Only two screw holes for mounting (many smaller transformers have four), but they seems adequate.

Powers 2 ring doorbell pros without a problem.

just what I needed. much better than original. I like the built in circuit breaker

I bought this one to replace my old one that was humming. The new one hums just as much as the old one.

Top quality , works great