We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

WHITE-RODGERS Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 30 sec Pre-Purge - Hot Surface Ignition Controls
WHITE-RODGERSHot Surface Ignition Controls

WHITE-RODGERS Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 30 sec Pre-Purge

The WHITE-RODGERS Integrated Furnace Control: Universal (SKU 3G-OTH-67577) is a hot surface ignition control operating at 24V AC. It features a 5-minute lockout and 30-second pre-purge, and is designed as a…

SKU 3G-OTH-67577

Also listed as: 50A55843S1 · 50A55-843S1

Brand
WHITE-RODGERS
Item
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 30 sec Pre-Purge
Category
Hot Surface Ignition Controls
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WHITE-RODGERS
Manufacturer Part Number
50A55 843S1
Type
843
AC
24V
Lock Out
5 min
Pre-Purge
30 sec
Product Type
Integrated Furnace Control
Control Voltage
24V AC
Replacement for OEM Brands
Trane

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 Integrated Furnace Control: Universal (SKU 3G-OTH-67577) is a hot surface ignition control operating at 24V AC. It features a 5-minute lockout and 30-second pre-purge, and is designed as a replacement for Trane OEM systems (MPN 50A55 843S1).

Frequently Asked Questions

What is the WHITE-RODGERS Integrated Furnace Control 50A55 843S1 used for?

This universal integrated furnace control is used in HVAC systems to manage hot surface ignition, pre-purge, and lockout sequences. It operates at 24V AC and is designed as a replacement for Trane OEM systems, ensuring reliable furnace operation in residential and light commercial applications.

What are the specifications of the WHITE-RODGERS 50A55 843S1?

The WHITE-RODGERS Integrated Furnace Control (MPN 50A55 843S1) operates at 24V AC, features a 5-minute lockout and 30-second pre-purge. It is a universal hot surface ignition control, type 843, designed to replace Trane OEM systems. The SKU is 3XA75.

Where to buy the WHITE-RODGERS 50A55 843S1 worldwide?

You can source the WHITE-RODGERS 50A55 843S1 from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this universal integrated furnace control.

How to install the WHITE-RODGERS Integrated Furnace Control 50A55 843S1?

Installation requires disconnecting power, mounting the control, and wiring per the manufacturer's diagram. Ensure 24V AC supply and proper grounding. Set dip switches for pre-purge and lockout timing. Always follow local codes and the WHITE-RODGERS manual for safe operation.

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 hot surface ignition controls. 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
Ignition Control: OEM, 120V AC, 258 sec Lock Out, 15 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50V54-820)
WHITE-RODGERS
Ignition Control: OEM, 120V AC, 258 sec Lock Out, 15 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50V54-820)
Ignition Control: OEM, 120V AC, 270 sec Lock Out, 15 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50C51-707)
WHITE-RODGERS
Ignition Control: OEM, 120V AC, 270 sec Lock Out, 15 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50C51-707)
Ignition Control: Universal, 18 to 30V AC, 687 sec Lock Out, 45 sec Pre-Purge, 4 A Main Valve Output (MPN 50E47U-843)
WHITE-RODGERS
Ignition Control: Universal, 18 to 30V AC, 687 sec Lock Out, 45 sec Pre-Purge, 4 A Main Valve Output (MPN 50E47U-843)
Furnace Control Board: OEM, Integrated, Compatible Brand Trane/White-Rodgers, 25V AC, 25V (MPN 50A65-5165)
WHITE-RODGERS
Furnace Control Board: OEM, Integrated, Compatible Brand Trane/White-Rodgers, 25V AC, 25V (MPN 50A65-5165)
Furnace Control Board: OEM, Integrated, Compatible Brand Trane/White-Rodgers, 25V AC, 25V (MPN 50A55-3797)
WHITE-RODGERS
Furnace Control Board: OEM, Integrated, Compatible Brand Trane/White-Rodgers, 25V AC, 25V (MPN 50A55-3797)
Furnace Control Board: Universal, Integrated, 25V AC, 25 V, Blowers (MPN 50M56X-843)
WHITE-RODGERS
Furnace Control Board: Universal, Integrated, 25V AC, 25 V, Blowers (MPN 50M56X-843)

More from WHITE-RODGERS

View all WHITE-RODGERS parts
Universal Ignition Control: Universal, 24V AC, 5 min Lock Out, 30 sec Pre-Purge, 843 (MPN 50E47 843S1)
WHITE-RODGERS
Universal Ignition Control: Universal, 24V AC, 5 min Lock Out, 30 sec Pre-Purge, 843 (MPN 50E47 843S1)
Ignition Control: OEM, 120V AC, 240 sec Lock Out, 15 sec Pre-Purge, 1.5 A Main Valve Output (MPN 21V51D-751)
WHITE-RODGERS
Ignition Control: OEM, 120V AC, 240 sec Lock Out, 15 sec Pre-Purge, 1.5 A Main Valve Output (MPN 21V51D-751)
Integrated Furnace Control: OEM, 24V AC, 5 min Lock Out, 30 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50A65 843S1)
WHITE-RODGERS
Integrated Furnace Control: OEM, 24V AC, 5 min Lock Out, 30 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50A65 843S1)
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 15 sec Pre-Purge (MPN 21V51U-843)
WHITE-RODGERS
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 15 sec Pre-Purge (MPN 21V51U-843)
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 15 sec Pre-Purge (MPN 21M51U-843)
WHITE-RODGERS
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 15 sec Pre-Purge (MPN 21M51U-843)