Manufacturer Name: Carrier Product Number: HT01CN241 OEM Part Number: HT01CN241 Product Description: 40Va 208/230Vprim 24Vsec Xfrmr Weight:1.25lbs/566.99g The Carrier HT01CN241 is a power transformer built primarily for HVAC systems. This small device, rated at 40 volt-Amperes, accepts 208/230 volts as its primary voltage and steps it down to a usable and safe 24 volts on the s... https://www.partshnc.com/40va-208230vprim-24vsec-xfrmr-2