Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

WHITE-RODGERS Fan-Control Relay with Transformer, DPDT, 24V AC Coil, 90 112S1 - Fan-Control Relays with Transformers
WHITE-RODGERSFan-Control Relays with Transformers

WHITE-RODGERS Fan-Control Relay with Transformer, DPDT, 24V AC Coil, 90 112S1

The WHITE-RODGERS Transformer Relay (MPN 90 112S1) is a fan-control relay with transformer, featuring one DPDT relay with normally closed/normally open contacts and a 24V AC coil. It is designed for use in HVAC and…

SKU 3G-OTH-67768

Also listed as: 90112S1 · 90-112S1

Brand
WHITE-RODGERS
Item
Fan-Control Relay with Transformer, DPDT, 24V AC Coil, 90 112S1
Category
Fan-Control Relays with Transformers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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 112S1
Contact Form
DPDT
Low Voltage Contact Form
DPDT

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The WHITE-RODGERS Transformer Relay (MPN 90 112S1) is a fan-control relay with transformer, featuring one DPDT relay with normally closed/normally open contacts and a 24V AC coil. It is designed for use in HVAC and industrial control systems requiring integrated relay and transformer functionality.

Frequently Asked Questions

What is the WHITE-RODGERS 90 112S1 transformer relay used for?

The WHITE-RODGERS 90 112S1 transformer relay is used in HVAC and industrial control systems to switch fan motors or other loads. It combines a DPDT relay with a 24V AC coil and an integrated transformer, simplifying wiring and saving panel space in heating, ventilation, and air-conditioning applications.

What are the specifications of the WHITE-RODGERS 90 112S1?

The WHITE-RODGERS 90 112S1 is a fan-control relay with transformer. It has one DPDT relay with normally closed/normally open contacts and a 24V AC coil. The contact form is DPDT, and the low-voltage contact form is also DPDT. The manufacturer part number is 90 112S1.

Where to buy the WHITE-RODGERS 90 112S1 worldwide?

You can source the WHITE-RODGERS 90 112S1 transformer relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this relay to HVAC and industrial customers globally.

How to install the WHITE-RODGERS 90 112S1 transformer relay?

Mount the WHITE-RODGERS 90 112S1 securely in a dry location. Connect the 24V AC coil to the control circuit per the wiring diagram. Wire the DPDT contacts for normally closed or normally open operation as needed. Ensure the transformer primary voltage matches the supply. Follow standard HVAC safety practices and consult the manufacturer's instructions.

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 fan-control relays with transformers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Magnetic fan-control relay with single-pole double-throw (SPDT) contacts, providing both normally open and normally closed switching. Operates with a 24V AC coil. Used in HVAC and industrial equipment control systems to switch fan motors or other loads based on a control signal
WHITE-RODGERS
Magnetic fan-control relay with single-pole double-throw (SPDT) contacts, providing both normally open and normally closed switching. Operates with a 24V AC coil. Used in HVAC and industrial equipment control systems to switch fan motors or other loads based on a control signal
WHITE-RODGERS
WHITE-RODGERS
Single-pole double-throw (SPDT) fan-control relay with normally closed and normally open contacts. Operates with a 120V AC coil. Used in HVAC systems and industrial equipment to control fan operation, switching between speeds or on/off states
SPST normally open switching relay with a 24V AC coil for low-voltage fan-control applications. Used in HVAC systems to switch fan motors on and off in forced-air heating and cooling equipment
WHITE-RODGERS
SPST normally open switching relay with a 24V AC coil for low-voltage fan-control applications. Used in HVAC systems to switch fan motors on and off in forced-air heating and cooling equipment
WHITE-RODGERS
WHITE-RODGERS
This fan-control relay features a single-pole, single-throw (SPST) contact form with normally open configuration and a 120V AC coil. It is used for switching fan circuits in HVAC systems and industrial equipment, such as controlling single-speed fans, blowers, and ventilation units
This magnetic relay from WHITE-RODGERS features two relays with SPNO/SPNC contact form and a low-voltage SPDT contact form, operating on a 24V AC coil. It is used in HVAC systems and industrial equipment for switching fan motors and other loads
WHITE-RODGERS
This magnetic relay from WHITE-RODGERS features two relays with SPNO/SPNC contact form and a low-voltage SPDT contact form, operating on a 24V AC coil. It is used in HVAC systems and industrial equipment for switching fan motors and other loads
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
WHITE-RODGERS
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

More from WHITE-RODGERS

View all WHITE-RODGERS parts
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
WHITE-RODGERS
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
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
WHITE-RODGERS
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