The White-Rodgers 3F01-140 is a heavy-duty, fixed-temperature snap disc fan control engineered for high-reliability blower regulation within residential and light commercial HVAC systems. This SPST fan switch features a close on rise action, precisely calibrated to engage the blower at a 140°F cut-in and disengage once the temperature drops to the 120°F cut-out. Constructed with a 3/4-inch flanged body, this unit serves as a high-performance replacement for Therm-O-Disc 60T12 (Type 610049) models. Its robust electrical design handles 10.0A at 120VAC and 5.0A at 240VAC, with a non-inductive resistive rating of up to 25.0A. Designed for rapid field installation, the 3F01-140 fan control includes tab-to-screw terminal adapters and industry-standard mounting holes, ensuring seamless integration into existing air handlers and furnace assemblies while sustaining an ambient temperature rating of up to 350°F. Key Benefits for HVAC Technicians Universal Compatibility: Standard 3/4-inch footprint matches existing snap disc mounting configurations for faster service calls. Enhanced Terminations: Includes tab-to-screw terminal adapters for flexible wiring in the field. High Thermal Stability: Rated for ambient environments up to 350°F, ideal for proximity to heat exchangers. Heavy Electrical Capacity: Features a 125 VA pilot duty rating and 25A resistive capacity for industrial-grade reliability. Automated Cycle: Reliable auto-reset functionality ensures consistent blower operation without manual intervention. Common Questions & Technical Support Is the 3F01-140 an adjustable control? No, this is a fixed snap disc fan control. If your application requires variable settings, you must source an adjustable series control, as this unit is factory-calibrated for a specific 140°F cut-in. What does the "F" in the part number signify? In the White-Rodgers naming convention, "F" identifies the part as a Fan Control (closes on temperature rise), whereas "L" designates a Limit Control (opens on temperature rise). Does this unit come with an adapter plate? The 3F01-140 is a flanged airstream mount. If your specific housing requires an oval or oversized adapter plate, the F6-1798 accessory must be acquired separately. 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.
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