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Resideo Honeywell AT72D1691/U 40VA 24V Transformer 208/240V

SKU: AT72D1691/U

$115.16

Only 2 left in stock

Same-item volume pricing
QuantityUnit priceSaving
1–4$115.160%
5–9$109.405%
10+$103.6410%

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Resideo / Honeywell AT72D1691/U

NEMA Standard 40VA Control Transformer

The Resideo (Honeywell Home) AT72D1691/U is a NEMA standard 24V step-down transformer designed to power 24V control circuits in HVAC and gas heating systems.

With a 40VA capacity and 208/240V primary input, this transformer delivers reliable 24V (26.5V nominal) secondary voltage for thermostats, gas valves, relays, and other HVAC control components.

Product Specifications:

  • Manufacturer: Resideo (Honeywell Home)

  • Series: AT72

  • MFG# AT72D1691/U

  • REM# 1C912

  • VA Rating: 40VA

  • Primary Voltage: 208/240V

  • Secondary Voltage: 24V (26.5V nominal)

  • NEMA Standard Construction

Applications:

  • Gas furnaces (Natural Gas & LP/Propane)

  • HVAC control boards

  • Thermostat power supply

  • Gas valves & relay control circuits

This transformer is designed for dependable service replacement and new installations requiring 24V control power in residential or light commercial systems.

Ideal for HVAC contractors, electrical technicians, and gas heating service professionals.

Product details

Part / SKU AT72D1691/U

Package includes

  • Resideo Honeywell AT72D1691/U 40VA 24V Transformer 208/240V

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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