
Trane TRR0574 Transfomer
The Trane TRR0574 Transformer is a heavy-duty industrial step-down solution engineered for high-voltage HVAC systems. Designed to handle 460/575V primary input, this 50VA rated component provides a stable 24V secondary output, essential for powering thermostats, contactor coils, and integrated control boards. This unit is frequently utilized in 3-10 ton packaged cooling units and rooftop air conditioners where reliable voltage transformation is critical for consistent control circuit performance. As an OEM Trane replacement part, it ensures direct electrical compatibility and physical fit during field service, significantly reducing labor time. The TRR0574 has been superseded by the Trane TRR00574, maintaining the same technical footprint and 5101A-501 or 5101A-502 design standards found in commercial HVAC equipment. Its multi-tap primary configuration allows technicians to adapt to both 460V and 575V electrical services with a single, robust component.
Key Benefits:
- Stable 50VA power rating supports multiple low-voltage accessories without overloading the control circuit.
- Dual primary taps allow for 460V or 575V input, providing versatility for various commercial power supplies.
- Engineered for Class 2 transformer safety compliance, protecting sensitive downstream HVAC controls.
- Direct Trane OEM replacement ensures correct footprint and terminal alignment for rapid installation in existing control panels.
- Rugged construction is designed to withstand high-vibration environments typical in rooftop and packaged unit applications.
Common Questions:
What is the difference between TRR0574 and TRR00574?
The TRR0574 is the legacy part number. The Trane TRR00574 is the current direct replacement which utilizes the same 50VA rating and voltage specifications for seamless field swapping.
Can this transformer be used on a 208/230V system?
No, this unit is specifically wound for high-voltage primary inputs of 460V or 575V. For 208/230V systems, you must use a compatible model like the TRR01546 to ensure correct secondary voltage.
How do I check if the TRR0574 has failed?
Technicians should verify 460/575V at the primary taps. If primary voltage is present but the secondary output is 0V, check for an inline fuse or an internal thermal breaker before condemning the unit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $108.94
-65%$108.94
$38.13Trane TRR0574 Transfomer
The Trane TRR0574 Transformer is a heavy-duty industrial step-down solution engineered for high-voltage HVAC systems. Designed to handle 460/575V primary input, this 50VA rated component provides a stable 24V secondary output, essential for powering thermostats, contactor coils, and integrated control boards. This unit is frequently utilized in 3-10 ton packaged cooling units and rooftop air conditioners where reliable voltage transformation is critical for consistent control circuit performance. As an OEM Trane replacement part, it ensures direct electrical compatibility and physical fit during field service, significantly reducing labor time. The TRR0574 has been superseded by the Trane TRR00574, maintaining the same technical footprint and 5101A-501 or 5101A-502 design standards found in commercial HVAC equipment. Its multi-tap primary configuration allows technicians to adapt to both 460V and 575V electrical services with a single, robust component.
Key Benefits:
- Stable 50VA power rating supports multiple low-voltage accessories without overloading the control circuit.
- Dual primary taps allow for 460V or 575V input, providing versatility for various commercial power supplies.
- Engineered for Class 2 transformer safety compliance, protecting sensitive downstream HVAC controls.
- Direct Trane OEM replacement ensures correct footprint and terminal alignment for rapid installation in existing control panels.
- Rugged construction is designed to withstand high-vibration environments typical in rooftop and packaged unit applications.
Common Questions:
What is the difference between TRR0574 and TRR00574?
The TRR0574 is the legacy part number. The Trane TRR00574 is the current direct replacement which utilizes the same 50VA rating and voltage specifications for seamless field swapping.
Can this transformer be used on a 208/230V system?
No, this unit is specifically wound for high-voltage primary inputs of 460V or 575V. For 208/230V systems, you must use a compatible model like the TRR01546 to ensure correct secondary voltage.
How do I check if the TRR0574 has failed?
Technicians should verify 460/575V at the primary taps. If primary voltage is present but the secondary output is 0V, check for an inline fuse or an internal thermal breaker before condemning the unit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
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Description
The Trane TRR0574 Transformer is a heavy-duty industrial step-down solution engineered for high-voltage HVAC systems. Designed to handle 460/575V primary input, this 50VA rated component provides a stable 24V secondary output, essential for powering thermostats, contactor coils, and integrated control boards. This unit is frequently utilized in 3-10 ton packaged cooling units and rooftop air conditioners where reliable voltage transformation is critical for consistent control circuit performance. As an OEM Trane replacement part, it ensures direct electrical compatibility and physical fit during field service, significantly reducing labor time. The TRR0574 has been superseded by the Trane TRR00574, maintaining the same technical footprint and 5101A-501 or 5101A-502 design standards found in commercial HVAC equipment. Its multi-tap primary configuration allows technicians to adapt to both 460V and 575V electrical services with a single, robust component.
Key Benefits:
- Stable 50VA power rating supports multiple low-voltage accessories without overloading the control circuit.
- Dual primary taps allow for 460V or 575V input, providing versatility for various commercial power supplies.
- Engineered for Class 2 transformer safety compliance, protecting sensitive downstream HVAC controls.
- Direct Trane OEM replacement ensures correct footprint and terminal alignment for rapid installation in existing control panels.
- Rugged construction is designed to withstand high-vibration environments typical in rooftop and packaged unit applications.
Common Questions:
What is the difference between TRR0574 and TRR00574?
The TRR0574 is the legacy part number. The Trane TRR00574 is the current direct replacement which utilizes the same 50VA rating and voltage specifications for seamless field swapping.
Can this transformer be used on a 208/230V system?
No, this unit is specifically wound for high-voltage primary inputs of 460V or 575V. For 208/230V systems, you must use a compatible model like the TRR01546 to ensure correct secondary voltage.
How do I check if the TRR0574 has failed?
Technicians should verify 460/575V at the primary taps. If primary voltage is present but the secondary output is 0V, check for an inline fuse or an internal thermal breaker before condemning the unit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












