Resideo - Honeywell Home AT72D1691 Standard Transformer

Resideo - Honeywell Home AT72D1691 Standard Transformer is engineered for residential combustion control systems, delivering reliable 24V AC control from a 208/240V input. This 50/60 Hz transformer provides a robust 40 VA power rating and is housed in a rugged NEMA Type D enclosure for safe, durable performance in typical control rooms. Its compact dimensions (2-7/32" W x 3-1/16" D x 3-7/32" H) and mounting feet/plate/clamp ensure easy installation, while UL and CSA approvals confirm compliance with safety standards. Includes thermostat, gas valve, and relay for streamlined integration in residential applications.

• Secondary/output: 24V AC for thermostat, gas valve, and relay
• Primary input: 208/240 VAC, 50/60 Hz
• Power rating: 40 VA
• Enclosure: NEMA Type D
• Mechanical fit: 2-7/32" W x 3-1/16" D x 3-7/32" H; mounting feet/plate/clamp
• Certifications: UL and CSA approved
• Application: Residential combustion control system
• Includes: Thermostat, gas valve, and relay