Emerson White-rodgers Class 2 Transformer, 40 VA Rating, 120/208/240VAC Input Voltage, 24VAC Output Voltage - 1 Each

Had an old HVAC system that had the transformer defective. I replace it with it and after many months, it still works.

just note, that the item i received has black plastic cover and not what is pictured with the whiteish one. Also the label shows made in china and not assembled in mexico as one of the photos shown. Comes with Emerson instructions sheet and boxes well. Seems to be built well however I have been running it for a few hours only so far.

Works well to replace the original transformer., even same screw holes.

This worked perfectly as a replacement for the transformer on my furnace a/c unit. It came with instructions explaining which leads were 120 volt, 240 volt input and 24 volt output. The leads were about 11 inches long.I checked the output voltage, and it was 26 volts at the transformer, which gave me 25 volts at the A/C compressor contractor.

I liked the multi-voltage input. I was looking for a transformer that could easily drive a 24vac relay coil. It would eventually be supplied by 240vac, but I was able to bench test the system using 120vac prior to installation. Finished system was low voltage control of baseboard heating by Nest Thermostat. Works great.