Description
The Honeywell/Resideo AT72D1733 is a robust multi-mount step-down transformer engineered for dependable 24 Vac power in HVAC and control systems. With a 40 VA output capacity, it safely steps down 208 V or 240 V primary power to a reliable 24 Vac secondary, making it an ideal choice for powering thermostats, relays, gas valves, and more.
Features:
- Override protection
- Color-coded lead wires for primary connections
- Energy limiting and meets NEMA Standard DC20-1992
- Transformers are marked NEMA Type D enclosure
- Meets NEC Class 2 not wet, Class 3 wet and UL 1585 requirements











