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WHITE-RODGERSSurface Mount Limit Controls

WHITE-RODGERS Temperature Fan Controller: Open on Rise, SPDT, 120°F Closing, 140°F Opening

The WHITE-RODGERS Temperature Fan Controller (Open on Rise) is a surface-mount limit control with SPDT switching, auto reset, and a 20°F differential. It closes at 120°F and opens at 140°F (MPN 3L03-140).

SKU 3G-OTH-69088

Also listed as: 3L03140 · 3L03 140

Brand
WHITE-RODGERS
Item
Temperature Fan Controller: Open on Rise, SPDT, 120°F Closing, 140°F Opening
Category
Surface Mount Limit Controls
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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
3L03-140
Type
SPDT, Auto Reset, 20°F
Closing
120°F
Opening
140°F

Technical Documents

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

Product Description

The WHITE-RODGERS Temperature Fan Controller (Open on Rise) is a surface-mount limit control with SPDT switching, auto reset, and a 20°F differential. It closes at 120°F and opens at 140°F (MPN 3L03-140).

Frequently Asked Questions

What is the White-Rodgers 3L03-140 temperature fan controller used for?

The White-Rodgers 3L03-140 is a surface-mount limit control used in HVAC systems to regulate fan operation based on temperature. It opens on temperature rise at 140°F and closes at 120°F, with a 20°F differential and automatic reset, ensuring safe equipment cycling.

What are the specifications of the White-Rodgers 3L03-140?

The White-Rodgers 3L03-140 is an SPDT, auto-reset temperature fan controller with a 20°F differential. It opens at 140°F and closes at 120°F. This surface-mount limit control is designed for HVAC applications requiring reliable temperature-based fan switching.

Where to buy the White-Rodgers 3L03-140 worldwide?

3G Electric supplies the White-Rodgers 3L03-140 temperature fan controller worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the White-Rodgers 3L03-140 temperature fan controller?

Mount the White-Rodgers 3L03-140 securely on a clean surface per the manufacturer's instructions. Ensure proper electrical connections for SPDT operation. Verify the opening (140°F) and closing (120°F) setpoints with a thermometer. Always disconnect power before installation and follow local codes.

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 surface mount limit controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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