Honeywell AT72D-1683 Tradline Step Down Transformer, 120V/24V

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Product details

Management number	204749926	Release Date	2025/10/21	List Price	$25.76	Model Number	204749926
Category	HEATING , COOLING, PLUMBING Plumbing & Heating

Honeywell 40 VA transformers power 24V systems including thermostats, gas valves and relays. Can be foot mounted, plate mounted on 4 x 4", 4" octagon, or 2 x 4" electrical boxes (transformer all above plate or 3/4 above plate); or clamp mounted via a junction box knockout.

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.

Specifications:

Temperature Range (F): -20 F to +105 F
Temperature Range (C): -29 C to +41 C
Mounting: Can be foot mounted, plate mounted on 4 x 4", 4" octagon, or 2 x 4" electrical boxes (transformer all above plate or 3/4 above plate); or clamp mounted via a junction box knockout.
Electrical Ratings: Primary voltage--120 Vac; Secondary voltage--26.5 V.O.C.
Frequency: 50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.: UL Component Recognized.
Approvals, Canadian Standards Association: Certified
Tradeline Value: Super Tradeline
NEMA Rating: NEMA type D
Approvals, N.E.C.: NEC Approved.
Electrical Connections (Primary): 9" leadwires
Electrical Connections (Secondary): (2) screw terminals
Electrical Ratings, Output: 24 Vac at 40 VA