OEM Carrier Power Transformer 460V Primary / 230V Secondary 1564VA for Model PY3GEAA48090NA

This is the genuine OEM replacement transformer (part number HT01BC701) factory-specified for the Carrier PY3GEAA48090NA packaged rooftop unit. Unlike small 40VA control-circuit transformers, this is a heavy-duty 1564VA isolation transformer that steps line voltage from 460V primary down to 230V secondary to power internal load circuits within the RTU. When this transformer fails, you'll see a complete or partial loss of power to downstream components — no fan operation, no compressor engagement, tripped breakers, or a dead unit that won't respond to any thermostat signal.

• Specs: 460V Primary | 230V Secondary | 1,564 VA rating | OEM Part No. HT01BC701 | Manufactured by Basler Electric for Carrier Factory Authorized Parts
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part — not an aftermarket substitute. OEM units are wound to exact VA and insulation-class tolerances required by the PY3GEAA48090NA, protecting downstream controls and motors from voltage irregularities that off-brand units may introduce.
• Install difficulty: 4/5 — This is a commercial-voltage (460V) component. Work must be performed by a licensed commercial HVAC/electrical technician with proper lockout/tagout procedures. Tools needed: multimeter (CAT III or IV rated), insulated screwdrivers, wire terminals, torque screwdriver. Always verify primary voltage is de-energized and confirm secondary output before reconnecting loads.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Designed and factory-matched for the Carrier PY3GEAA48090NA packaged rooftop unit. Cross-reference: HT01BC701 is also referenced as BE33426001 / RC6800182. Verify your unit's data plate voltage and VA requirements before ordering. Our technical team is available to confirm fitment prior to purchase — don't hesitate to reach out before you order.