White Rodgers 90-T40F3 Transformer - 24V AC, 40VA, Class 2, 1 Phase, HVAC

Alright, so you need a new transformer for your furnace, air handler, or thermostat setup?

This is the White Rodgers 90-T40F3.

It's a brand new, 24-volt AC transformer, and it's rated at 40 VA.

It's a Class 2 transformer, which is exactly what you need for most heating and cooling control circuits.

It's single phase, super straightforward to wire up.

Just mount it, connect your 120V primary (or whatever your input is), and you've got 24V on the secondary side to power up your thermostat and contactors.

It's the real deal, new in the box, with the model number E33334.

If your system is going dark, this little guy will bring it back to life.