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WHITE-RODGERS Class 2 Transformer: 40 VA Power Rating, 120V AC/208V AC/240V AC, 24V AC - Open Class 2 Transformers
WHITE-RODGERSOpen Class 2 Transformers

WHITE-RODGERS Class 2 Transformer: 40 VA Power Rating, 120V AC/208V AC/240V AC, 24V AC

The WHITE-RODGERS Class 2 Transformer (SKU 90-T40F3, MPN 90-T40F3) is an open-style transformer with a 40 VA power rating. It features a foot mounting configuration, a 208V AC input voltage, and a 24V AC output…

SKU 3G-OTH-47485

Also listed as: 90T40F3 · 90 T40F3

Brand
WHITE-RODGERS
Item
Class 2 Transformer: 40 VA Power Rating, 120V AC/208V AC/240V AC, 24V AC
Category
Open Class 2 Transformers
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WHITE-RODGERS
Manufacturer Part Number
90-T40F3
Type
Foot
AC
24V
Mounting
Foot
Input Voltage
208V AC
Output Voltage
24V AC
AC/208V AC/240V AC
120V
Connection - Primary
Wire Lead
Connection - Secondary
Wire Lead

Technical Documents

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WHITE-RODGERS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WHITE-RODGERS Class 2 Transformer (SKU 90-T40F3, MPN 90-T40F3) is an open-style transformer with a 40 VA power rating. It features a foot mounting configuration, a 208V AC input voltage, and a 24V AC output voltage. Both primary and secondary connections are made via wire leads.

Frequently Asked Questions

What is the WHITE-RODGERS 90-T40F3 transformer used for?

The WHITE-RODGERS 90-T40F3 Class 2 transformer is used to step down line voltage to 24V AC for HVAC control systems, thermostats, relays, and other low-voltage automation equipment in commercial and industrial buildings.

What are the specifications of the WHITE-RODGERS 90-T40F3 transformer?

The WHITE-RODGERS 90-T40F3 is a 40 VA open Class 2 transformer with a foot mounting. It accepts 208V AC input and delivers 24V AC output. Both primary and secondary connections are wire leads. The manufacturer part number is 90-T40F3.

Where to buy the WHITE-RODGERS 90-T40F3 transformer worldwide?

3G Electric supplies the WHITE-RODGERS 90-T40F3 transformer worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the WHITE-RODGERS 90-T40F3 transformer?

Mount the WHITE-RODGERS 90-T40F3 securely using its foot bracket. Connect the primary wire leads to a 208V AC source and the secondary leads to the 24V AC load. Follow all local electrical codes and ensure the circuit is de-energized before installation.

Used in

Common applications for WHITE-RODGERS
Residential furnace replacement — White-Rodgers 767A-377 hot surface igniter for Trane gas furnaces
Commercial HVAC control retrofits — White-Rodgers 90-T60C3 Class 2 transformer for 24V control circuits
Hydronic zone heating systems — White-Rodgers 13 61 104S1 2-way zone valve for multi-zone temperature control
Plenum temperature regulation — White-Rodgers 05D51 035S1 fan and limit control for forced-air furnaces
OEM furnace control board replacement — White-Rodgers 50N02A-820 integrated ignition control for Trane systems
Fan relay and transformer integration — White-Rodgers 90 118ES1 for compact HVAC control panels

WHITE-RODGERS Products

3G Electric supplies WHITE-RODGERS open class 2 transformers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Transformer Relay: 2 Relay, SPST, Normally Closed/Normally Open, 24V AC Coil (MPN 90 118ES1)
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Transformer Relay: 1 Relay, DPDT, Normally Closed/Normally Open, 24V AC Coil (MPN 90 112S1)
Switching Relay: 1 Relay, SPST, Normally Open, 120V AC/208/240V AC/24V AC Coil (MPN 49M11-843)
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Switching Relay: 1 Relay, SPST, Normally Open, 120V AC/208/240V AC/24V AC Coil (MPN 49M11-843)
WHITE-RODGERS Magnetic Relay: Surface Mounted, 125 mA Current Rating, 24V AC, SPDT, 5 Pins/Terminals (MPN 90 293Q)
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WHITE-RODGERS Magnetic Relay: Surface Mounted, 125 mA Current Rating, 24V AC, SPDT, 5 Pins/Terminals (MPN 90 293Q)

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