White-Rodgers 3F05-1 Heating Snap Disc Fan Control

White-Rodgers 3F05-1 Heating Snap Disc Fan Control is a compact, adjustable snap-disc control designed for heating systems. It operates as an auto-reset SPST switch with a Close on Rise action, ideal for triggering a furnace or air handler fan at a set temperature.

Built to handle 120/240 VAC and a variety of loads, this Therm-O-Disc style 74T12 device offers robust performance with a 14 A rating at 120 V AC, 10 A at 240 V AC, and up to 25 A resistive at both voltages. The unit features 1/4 inch quick-connect terminals for easy wiring, and a pilot-duty rating of 125 VA.

Key operating specs include a temperature rating of 90 to 130°F and a differential of 20°F, ensuring reliable fan engagement during heating cycles. The product includes a thermostat and tab-to-screw terminal for straightforward installation and adjustments.

• Type: Snap Disc Fan Control, Auto Reset, SPST, Close on Rise
• Electrical: 120/240 VAC, 14 A @120 V, 10 A @240 V, 25 A resistive
• Terminals: 1/4" Quick Connect
• Thermal: Temperature range 90–130°F, Differential 20°F
• Includes: Thermostat and Tab-To-Screw Terminal