White-Rodgers 3F01-180 Switch

The White-Rodgers 3F01-180 is a heavy-duty 3/4-inch snap disc fan control engineered for precise blower motor regulation in residential and commercial HVAC systems. This auto reset fan switch features a fixed cut-in temperature of 180°F and a fixed cut-out temperature of 160°F, providing a reliable 20°F differential. Utilizing a close on rise switch action (SPST), the Therm-O-Disc 60T12-610065 design ensures the blower activates only when the heat exchanger reaches optimal discharge temperatures, preventing cold drafts and maximizing system efficiency. Built for high-amperage applications, it is rated for 10A at 120VAC and 5A at 240VAC. The flanged airstream mount and included tab-to-screw terminal adapters allow for streamlined, on-the-job replacement in forced-air furnaces and appliance cooling circuits. For specialized mounting requirements, this 3F01 series control is compatible with the F6-1798 adapter plate (sold separately).

• Universal Compatibility: Matches standard 3/4-inch mounting footprints, making it a drop-in replacement for most OEM fan limit switches.
• Rugged Electrical Ratings: Features a 25A resistive rating and 125VA pilot duty for versatile integration into various control circuits.
• Thermal Precision: The snap-action bimetal disc provides rapid, positive switching to prevent contact arcing and premature wear.
• Simplified Identification: Industry-standard part numbering where the final three digits indicate the 180°F cut-in setpoint for fast field verification.

Is the 3F01-180 suitable for use as a high-limit safety control?
No. This is a "Close on Rise" fan control designed to trigger a blower. For safety limit applications that require "Open on Rise" functionality to kill the gas valve or burner, you must use an L-series control (e.g., 3L01 series).

Can this switch be used in 240V systems?
Yes, the White-Rodgers 3F01-180 is rated for 5.0 Full Load Amps at 240VAC and 10.0 Full Load Amps at 120VAC, making it suitable for both standard furnace and electric heat applications.

What happens if the internal temperature exceeds the 180°F cut-in?
As a snap disc auto reset switch, it will remain closed as long as the temperature is above 160°F. It will automatically reset (open the circuit) once the sensed temperature drops below the 160°F cut-out point.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.