Rcd ht01bd702 Control Transformer 75VA 460V 24V

Product Description

The RCD ht01bd702 is a step-down control transformer rated at 75 VA, designed to reduce a 460-volt primary supply to a 24-volt secondary output for low-voltage HVAC control circuits. This class of transformer powers the control boards, thermostats, and relay coils that manage heating and cooling operation in commercial and light-commercial air handling equipment. Licensed HVAC technicians install and replace these units as part of routine service on rooftop units, air handlers, and packaged systems where 460-volt three-phase or single-phase power is the primary supply.

The ht01bd702 is suited for commercial HVAC applications where a 460-volt primary feed is present and a 24-volt control circuit must be maintained. Typical installations include rooftop package units, large air handlers, and split-system condensing units wired for 460-volt service. The 75 VA capacity supports standard control loads including contactor coils, thermostat circuits, and economizer controls. This transformer is referenced as a Carrier parts and accessories replacement component for HVAC central air systems.

Key Features

• 75 VA rating supports standard commercial HVAC control circuit loads
• 460-volt primary input steps down to 24-volt secondary output
• Designed as a direct replacement for Carrier HVAC transformer applications
• Compact form factor suited for installation inside unit control compartments

Compatibility

Designed as an OEM-style replacement transformer for Carrier HVAC central air systems requiring a 460-volt primary to 24-volt secondary control transformer.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with commercial voltage wiring and NEC requirements. Disconnect and lock out all primary power before removing the existing transformer or making any wiring connections. Verify that the replacement transformer VA rating meets or exceeds the connected control circuit load before energizing. Do not energize the unit until all wiring connections are secure and covers are reinstalled.

Technical Specifications

• Primary Voltage: 460 volts
• Secondary Voltage: 24 volts
• VA Rating: 75 VA

Standard Information

• Brand: RCD
• Manufacturer Part Number: ht01bd702