OEM Carrier Transformer 460V Primary / 230V Secondary 1564VA for Model PY4GEWB42060AA

This genuine OEM Carrier transformer (part number HT01BC701) is the factory-specified replacement for the Carrier PY4GEWB42060AA packaged rooftop unit. This is a high-capacity step-down transformer that converts 460V primary power to a 230V secondary output at 1564VA, providing clean, stable voltage to internal control and power circuits throughout the unit. When this transformer fails, the result is typically a complete loss of system operation — no heating, no cooling, no fan — because downstream components are starved of their required operating voltage.

• Specs: 460V Primary | 230V Secondary | 1564VA Rating | OEM Part# HT01BC701 | Manufactured by Basler Electric (Factory Authorized Parts)
• OEM vs Generic: This is a genuine Factory Authorized Parts (FAP) OEM transformer, wound and rated to exact Carrier specifications. Aftermarket substitutes often carry imprecise VA ratings or inferior core laminations, leading to overheating, premature failure, and potential downstream component damage.
• Install difficulty: 3/5 — This is a high-voltage commercial transformer. Disconnect and lock out all power before servicing. Tools needed: multimeter, insulated screwdrivers, wire stripper, and appropriately rated wire connectors. Photograph all wiring before disconnection. Due to the 460V primary circuit, this installation should be performed by a licensed commercial HVAC technician.
• Warranty: 1-year OEM factory warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Fits Carrier model PY4GEWB42060AA commercial packaged rooftop unit. Also compatible with select Carrier, Payne, and Bryant packaged units and RTUs that specify OEM part number HT01BC701 — verify your unit's data plate and wiring diagram before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy.