White-Rodgers 3L05-3 Heating Snap Disc Limit Control

The White-Rodgers 3L05-3 Heating Snap Disc Limit Control is a dependable snap disc limit control for heating systems. This adjustable set-point device uses the Therm-O-Disc style 74T11 design to deliver accurate overheat protection and long-lasting reliability in HVAC equipment.

Designed for heating control, it features an SPST switch that opens on rise, with a 1/4 inch quick-connect terminal and a rugged flanged airstream mount for secure installation. It accepts standard 120/240 VAC power with robust current ratings to handle typical residential and commercial loads, and a temperature rating from 210 to 250°F with a 40°F differential.

• Type: Snap Disc Limit Control with adjustable set point
• Mounting: Flanged Airstream mount for secure installation
• Switch: SPST, Open on Rise
• Terminals: 1/4 inch quick-connect
• Voltage / Current: 120/240 VAC; 14A @ 120V, 10A @ 240V (full load); 72A @ 120V / 60A @ 240V (locked rotor); 25A @ 120/240V (resistive); Pilot duty 125 VA
• Temperature: 210–250°F
• Differential: 40°F
• Style / Type: Therm-O-Disc Style 74T11, Therm-O-Disc Type 310712
• Application: Primarily used on heating control