White Rodgers 90-T75C3 Transformer

Description:

The White-Rodgers 90-T75C3 Transformer is used in residential, commercial, and industrial HVAC systems for stepping down line voltage to low voltage control power for thermostats, relays, contactors, gas valves, and HVAC control circuits. Commonly installed in furnaces, air handlers, refrigeration systems, rooftop HVAC units, and industrial control panels. Maintenance teams, HVAC technicians, and electrical contractors use this part for transformer replacement, control system repair, retrofit projects, and restoration of low voltage power distribution.

Applications:

The White-Rodgers 90-T75C3 transformer is commonly used in HVAC and industrial environments requiring reliable low voltage power conversion and dependable control circuit operation. It is frequently installed in furnace control systems, air conditioning equipment, refrigeration assemblies, and automation panels where stable low voltage output is critical for maintaining thermostat communication and HVAC component control. The transformer supports continuous-duty operation in heating, cooling, and industrial process control applications.

Technical Specifications:

• Brand: White-Rodgers
• Part Number: 90-T75C3
• Product Type: Class 2 Control Transformer
• Power Rating: 75 VA
• Primary Voltage: 120/208/240 VAC
• Secondary Voltage: 24 VAC
• Frequency Rating: 50/60 Hz
• Transformer Type: Step-Down HVAC Control Transformer
• Application: Low Voltage HVAC Power Conversion
• Compatible Equipment: Furnaces, Air Handlers, and HVAC Systems
• Mounting Style: Multi-Mount / Foot Mount
• Primary Connection Type: Lead Wires
• Secondary Connection Type: Lead Wires
• Industrial Use: Residential and Commercial HVAC Systems
• Operating Environment: Continuous-Duty Electrical Applications
• System Compatibility: Thermostats, Relays, and Gas Valve Circuits
• Construction Type: Class 2 Energy Limiting Transformer

Common Replacements:

• Honeywell AT175A Transformer
• Packard PF42475 Control Transformer
• Mars 50375 Class 2 Transformer