Product Description

The Honeywell AT72D1683 is a versatile 40 VA general-purpose control transformer designed to step down 120 VAC to 24 VAC, making it ideal for powering 24V control systems such as thermostats, gas valves, and relays. This transformer features a universal mounting design, allowing for foot, plate, or clamp mounting, and is equipped with color-coded lead wires for easy primary connections. It meets NEMA Type D enclosure standards and complies with NEC Class 2 (non-wet) and Class 3 (wet) requirements, as well as UL 1585 standards, ensuring safe and reliable operation in various environments.​

Technical Specifications

• Model: AT72D1683
• Type: General Purpose Control Transformer
• Primary Voltage: 120 VAC
• Secondary Voltage: 26.5 VAC
• Power Rating: 40 VA
• Frequency: 50/60 Hz
• Mounting Options: Foot, Plate, or Clamp Mount
• Lead Wires: 9-inch primary lead wires; 2 screw terminals for secondary connections
• Temperature Range: -20°F to +105°F
• Enclosure Rating: NEMA Type D
• Certifications: UL Listed, CSA Certified, NEC Class 2 (non-wet), Class 3 (wet)
• Dimensions: 3 7/32 inches high x 2 7/32 inches wide x 3 1/16 inches deep
• Warranty: 1 year Compliance Standards: CE, UL, cUL, RoHS compliant