Resideo AT87A1155 Transformer
Upgrade your industrial or commercial HVAC control systems with the Resideo AT87A1155 Transformer. Designed for high-voltage environments, this 480V to 24V step-down transformer provides a reliable 48VA power supply to run air conditioning circuits, 24V thermostats, and building automation controllers. As a NEMA Type E transformer, it features built-in energy limiting overload protection per NEC Class 2 standards, ensuring your low-voltage components are shielded from electrical faults during operation. The foot-mount design and 12-inch color-coded leadwires facilitate a fast, standard installation for field technicians managing multi-tap primary configurations.
Key Benefits- Precise Voltage Conversion: Efficiently steps down 480V primary power to a stable 26.5V VOC secondary output for sensitive 24VAC control modules.
- Integrated Safety: Features energy limiting protection and meets UL 1585 requirements, eliminating the need for external fusing in many Class 2 applications.
- Industrial Durability: Robust foot-mounted construction engineered for longevity in demanding boiler rooms and mechanical spaces.
- Contractor-Friendly Install: Pre-stripped 12-inch wire lead connections allow for simplified integration into existing control panels.
- Is the AT87A1155 compatible with older 480V HVAC units? Yes, this unit is a standard replacement for 480V primary systems requiring a 24V-27V secondary output, provided the load does not exceed 48VA.
- Can this transformer be used in damp locations? This model meets NEC Class 2 "not wet" and Class 3 "wet" requirements, making it suitable for a wide range of mechanical environments.
- How do I identify the primary and secondary wires? The Resideo AT87A1155 utilize standard color-coded leadwires; always refer to the specific wiring diagram on the housing to confirm 480V input terminals.
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.
Resideo AT87A1155 Transformer
Upgrade your industrial or commercial HVAC control systems with the Resideo AT87A1155 Transformer. Designed for high-voltage environments, this 480V to 24V step-down transformer provides a reliable 48VA power supply to run air conditioning circuits, 24V thermostats, and building automation controllers. As a NEMA Type E transformer, it features built-in energy limiting overload protection per NEC Class 2 standards, ensuring your low-voltage components are shielded from electrical faults during operation. The foot-mount design and 12-inch color-coded leadwires facilitate a fast, standard installation for field technicians managing multi-tap primary configurations.
Key Benefits- Precise Voltage Conversion: Efficiently steps down 480V primary power to a stable 26.5V VOC secondary output for sensitive 24VAC control modules.
- Integrated Safety: Features energy limiting protection and meets UL 1585 requirements, eliminating the need for external fusing in many Class 2 applications.
- Industrial Durability: Robust foot-mounted construction engineered for longevity in demanding boiler rooms and mechanical spaces.
- Contractor-Friendly Install: Pre-stripped 12-inch wire lead connections allow for simplified integration into existing control panels.
- Is the AT87A1155 compatible with older 480V HVAC units? Yes, this unit is a standard replacement for 480V primary systems requiring a 24V-27V secondary output, provided the load does not exceed 48VA.
- Can this transformer be used in damp locations? This model meets NEC Class 2 "not wet" and Class 3 "wet" requirements, making it suitable for a wide range of mechanical environments.
- How do I identify the primary and secondary wires? The Resideo AT87A1155 utilize standard color-coded leadwires; always refer to the specific wiring diagram on the housing to confirm 480V input terminals.
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
Shipping & Returns
Description
Upgrade your industrial or commercial HVAC control systems with the Resideo AT87A1155 Transformer. Designed for high-voltage environments, this 480V to 24V step-down transformer provides a reliable 48VA power supply to run air conditioning circuits, 24V thermostats, and building automation controllers. As a NEMA Type E transformer, it features built-in energy limiting overload protection per NEC Class 2 standards, ensuring your low-voltage components are shielded from electrical faults during operation. The foot-mount design and 12-inch color-coded leadwires facilitate a fast, standard installation for field technicians managing multi-tap primary configurations.
Key Benefits- Precise Voltage Conversion: Efficiently steps down 480V primary power to a stable 26.5V VOC secondary output for sensitive 24VAC control modules.
- Integrated Safety: Features energy limiting protection and meets UL 1585 requirements, eliminating the need for external fusing in many Class 2 applications.
- Industrial Durability: Robust foot-mounted construction engineered for longevity in demanding boiler rooms and mechanical spaces.
- Contractor-Friendly Install: Pre-stripped 12-inch wire lead connections allow for simplified integration into existing control panels.
- Is the AT87A1155 compatible with older 480V HVAC units? Yes, this unit is a standard replacement for 480V primary systems requiring a 24V-27V secondary output, provided the load does not exceed 48VA.
- Can this transformer be used in damp locations? This model meets NEC Class 2 "not wet" and Class 3 "wet" requirements, making it suitable for a wide range of mechanical environments.
- How do I identify the primary and secondary wires? The Resideo AT87A1155 utilize standard color-coded leadwires; always refer to the specific wiring diagram on the housing to confirm 480V input terminals.
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.
