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WHITE-RODGERS 90-T40F3 Open Class 2 Transformer - Open Class 2 Transformers
WHITE-RODGERSOpen Class 2 Transformers

WHITE-RODGERS 90-T40F3 Open Class 2 Transformer

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
90-T40F3 Open Class 2 Transformer
Category
Open Class 2 Transformers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

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

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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
Fan-control relay with integrated transformer featuring two SPST relays (Normally Closed and Normally Open) and one SPDT low-voltage contact form, all operated by a 24V AC coil. Suitable for HVAC and industrial control systems requiring combined relay and transformer functionality
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Fan-control relay with integrated transformer featuring two SPST relays (Normally Closed and Normally Open) and one SPDT low-voltage contact form, all operated by a 24V AC coil. Suitable for HVAC and industrial control systems requiring combined relay and transformer functionality
This electric-heat relay integrates a single SPST normally open relay and a transformer in one unit. The 240V AC coil is suited for switching heating loads in HVAC systems and electric-heat applications
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This electric-heat relay integrates a single SPST normally open relay and a transformer in one unit. The 240V AC coil is suited for switching heating loads in HVAC systems and electric-heat applications
This fan-control relay integrates a transformer and a single SPDT relay in one assembly for HVAC applications. The relay features normally closed and normally open contacts, with a 24V AC coil for low-voltage control signals. It is used to switch power to fan motors in heating, ventilation, and air conditioning systems
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This fan-control relay integrates a transformer and a single SPDT relay in one assembly for HVAC applications. The relay features normally closed and normally open contacts, with a 24V AC coil for low-voltage control signals. It is used to switch power to fan motors in heating, ventilation, and air conditioning systems
This fan-control relay integrates a DPDT relay with a 24V AC coil and a transformer in a single unit. It is used in HVAC systems to switch fan motors or other loads, simplifying wiring and reducing panel space
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This fan-control relay integrates a DPDT relay with a 24V AC coil and a transformer in a single unit. It is used in HVAC systems to switch fan motors or other loads, simplifying wiring and reducing panel space
Switching Relay: 1 Relay, SPST, Normally Open, 120V AC/208/240V AC/24V AC Coil (MPN 49M11-843)
WHITE-RODGERS
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)
WHITE-RODGERS
WHITE-RODGERS Magnetic Relay: Surface Mounted, 125 mA Current Rating, 24V AC, SPDT, 5 Pins/Terminals (MPN 90 293Q)

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