Resideo AT72D1733 Transformer
The Resideo Honeywell Home AT72D1733 is a multi-tap 40VA plate-mounted transformer engineered for reliable power distribution in residential and light commercial 24V control systems. This Class 2 transformer provides maximum application versatility with primary voltage taps for 120V, 208V, and 240V, ensuring compatibility with varying site power configurations. The secondary output delivers a consistent 24V under load, making it a critical component for powering HVAC 24V control circuits, including zone dampers, electronic oil primary controls, and multi-stage thermostats. The 1/2" NPT threaded conduit nut allows for secure mounting to standard 4x4 electrical boxes, while the integrated lead wires simplify field wiring connections in tight mechanical spaces. Built with heavy-duty laminations and high-temp wire insulation, the AT72D1733 maintains voltage regulation and thermal stability under continuous operation, reducing service calls related to control circuit power failures.
Technical Performance Features
- Multi-Tap Primary Power: Field-selectable inputs for 120, 208, and 240 VAC allow for standardization across different job site requirements.
- 40VA Capacity: Sufficient power overhead for multiple relays, zone valves, and smart thermostats without voltage drop.
- Class 2 UL Listed: Meets safety standards for low-voltage power sources, eliminating the need for additional fused protection in many jurisdictions.
- Plate Mounted Design: Includes a 4x4 inch plate for easy installation onto standard junction boxes or equipment panels.
- Internal Thermal Protection: Designed to prevent overheating during overload conditions, ensuring long-term component durability.
Common Contractor Questions
Can the AT72D1733 handle modern smart thermostats with high current draws?
Yes, the 40VA rating provides enough current to power multiple WiFi-enabled thermostats and associated control boards without exceeding the transformer load limit.
Is this transformer suitable for humid environments like air handlers?
This Honeywell transformer is designed for standard NEMA-rated enclosures and indoor mechanical rooms; ensure it is protected from direct moisture or heavy condensation.
How do I identify the common wire for 24V circuits?
Always refer to the wire color coding on the specific AT72D1733 unit; typically, the secondary leads provide a dedicated 24V hot and 24V common for grounding requirements.
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: $38.18
-65%$38.18
$13.36Resideo AT72D1733 Transformer
The Resideo Honeywell Home AT72D1733 is a multi-tap 40VA plate-mounted transformer engineered for reliable power distribution in residential and light commercial 24V control systems. This Class 2 transformer provides maximum application versatility with primary voltage taps for 120V, 208V, and 240V, ensuring compatibility with varying site power configurations. The secondary output delivers a consistent 24V under load, making it a critical component for powering HVAC 24V control circuits, including zone dampers, electronic oil primary controls, and multi-stage thermostats. The 1/2" NPT threaded conduit nut allows for secure mounting to standard 4x4 electrical boxes, while the integrated lead wires simplify field wiring connections in tight mechanical spaces. Built with heavy-duty laminations and high-temp wire insulation, the AT72D1733 maintains voltage regulation and thermal stability under continuous operation, reducing service calls related to control circuit power failures.
Technical Performance Features
- Multi-Tap Primary Power: Field-selectable inputs for 120, 208, and 240 VAC allow for standardization across different job site requirements.
- 40VA Capacity: Sufficient power overhead for multiple relays, zone valves, and smart thermostats without voltage drop.
- Class 2 UL Listed: Meets safety standards for low-voltage power sources, eliminating the need for additional fused protection in many jurisdictions.
- Plate Mounted Design: Includes a 4x4 inch plate for easy installation onto standard junction boxes or equipment panels.
- Internal Thermal Protection: Designed to prevent overheating during overload conditions, ensuring long-term component durability.
Common Contractor Questions
Can the AT72D1733 handle modern smart thermostats with high current draws?
Yes, the 40VA rating provides enough current to power multiple WiFi-enabled thermostats and associated control boards without exceeding the transformer load limit.
Is this transformer suitable for humid environments like air handlers?
This Honeywell transformer is designed for standard NEMA-rated enclosures and indoor mechanical rooms; ensure it is protected from direct moisture or heavy condensation.
How do I identify the common wire for 24V circuits?
Always refer to the wire color coding on the specific AT72D1733 unit; typically, the secondary leads provide a dedicated 24V hot and 24V common for grounding requirements.
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
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Description
The Resideo Honeywell Home AT72D1733 is a multi-tap 40VA plate-mounted transformer engineered for reliable power distribution in residential and light commercial 24V control systems. This Class 2 transformer provides maximum application versatility with primary voltage taps for 120V, 208V, and 240V, ensuring compatibility with varying site power configurations. The secondary output delivers a consistent 24V under load, making it a critical component for powering HVAC 24V control circuits, including zone dampers, electronic oil primary controls, and multi-stage thermostats. The 1/2" NPT threaded conduit nut allows for secure mounting to standard 4x4 electrical boxes, while the integrated lead wires simplify field wiring connections in tight mechanical spaces. Built with heavy-duty laminations and high-temp wire insulation, the AT72D1733 maintains voltage regulation and thermal stability under continuous operation, reducing service calls related to control circuit power failures.
Technical Performance Features
- Multi-Tap Primary Power: Field-selectable inputs for 120, 208, and 240 VAC allow for standardization across different job site requirements.
- 40VA Capacity: Sufficient power overhead for multiple relays, zone valves, and smart thermostats without voltage drop.
- Class 2 UL Listed: Meets safety standards for low-voltage power sources, eliminating the need for additional fused protection in many jurisdictions.
- Plate Mounted Design: Includes a 4x4 inch plate for easy installation onto standard junction boxes or equipment panels.
- Internal Thermal Protection: Designed to prevent overheating during overload conditions, ensuring long-term component durability.
Common Contractor Questions
Can the AT72D1733 handle modern smart thermostats with high current draws?
Yes, the 40VA rating provides enough current to power multiple WiFi-enabled thermostats and associated control boards without exceeding the transformer load limit.
Is this transformer suitable for humid environments like air handlers?
This Honeywell transformer is designed for standard NEMA-rated enclosures and indoor mechanical rooms; ensure it is protected from direct moisture or heavy condensation.
How do I identify the common wire for 24V circuits?
Always refer to the wire color coding on the specific AT72D1733 unit; typically, the secondary leads provide a dedicated 24V hot and 24V common for grounding requirements.
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.
