OEM Carrier Control Transformer 40VA 208/240V to 24V for Model PY3PPA060130NB

This OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the Carrier PY3PPA060130NB packaged unit. The transformer steps down the 208/240V line voltage to the 24V signal used by the control board, thermostat, contactor coil, and every other low-voltage component in the system. When it fails, the entire control circuit goes dark — you'll see a blank thermostat, no response to calls for heating or cooling, and potentially a tripped 5A fuse on the board from a shorted secondary.

• Specs: 208/240V Primary | 24V Secondary | 40VA capacity | 50/60 Hz | Direct OEM replacement for HT01BD207, HT01CN232, and 9076-00
• OEM vs Generic: This is a genuine Carrier OEM part, wound to factory VA and voltage tolerances. Under-spec'd aftermarket transformers run hot, trip thermal cutoffs prematurely, and can damage control boards by delivering unstable voltage.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V output after install). Always photograph the existing wiring harness before disconnecting leads.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY3PPA060130NB packaged unit. Verify your existing transformer's primary voltage and VA rating on the unit's data plate before ordering. Cross-references OEM part numbers HT01BD207, HT01CN232, and 9076-00. Questions about fitment? Our team verifies compatibility before you order — contact us today and we'll ship it out fast.