Overview
The White Rodgers 3L02-160 is a manual reset snap disc limit control engineered for precise temperature-based circuit interruption. This fixed-setpoint thermostat opens its contacts at 160°F (71°C) on temperature rise, making it ideal for fan, blower, and high-limit safety control in heating and HVAC systems. Its manual reset design requires deliberate operator action to restore power after a thermal event, adding a critical safety layer.
Key Features
- Fixed Temperature Setpoint: Opens at 160°F (71°C) on temperature rise
- Manual Reset Operation: Requires manual reset to restore circuit after thermal trip
- SPDT Contact Configuration: Single pole, double-throw switching for flexible circuit control
- Voltage Rating: Rated for 120/240/277 VAC operation
- Standard Mounting: 3/4″ snap disc flange with standard hole pattern for direct replacement
- Flanged Airstream Mount: Rapid installation in ducting and direct-mounted applications
Technical Specifications
The 3L02-160 combines robust design with straightforward installation. Its snap disc element provides reliable, repeatable switching action across thousands of cycles.
- Contact Configuration: SPDT (Single Pole, Double Throw)
- Open Temperature: 160°F (71°C)
- Voltage Rating: 120/240/277 VAC
- Reset Type: Manual
- Mounting Style: 3/4″ Snap Disc Flange, Flanged Airstream Mount
- Connection: Tab-to-screw terminal adapters included
Typical Applications
The White Rodgers 3L02-160 is widely deployed in:
- Furnace and boiler high-limit safety circuits
- Fan and blower motor control with overheat protection
- Duct temperature monitoring in HVAC systems
- Industrial heating equipment requiring manual reset safety interlocks
- Retrofit and replacement installations where standard 3/4″ snap disc mounting is required
Compatibility & Replacements
Compatible With
- Most HVAC furnaces, boilers, and unit heaters using 3/4″ snap disc limit controls
- Heating systems with 120/240/277 VAC supply circuits
- Direct-mount and flanged ductwork applications
- Retrofit replacements for OEM limit thermostat controls
Replaces / Drop-In Replacement For
Verify compatibility with your equipment manufacturer before ordering. The 3L02-160 is an OEM replacement for similar White Rodgers and Emerson snap disc limit controls with 160°F setpoint and manual reset operation. Check your existing thermostat flange size and terminal configuration.
Works With
- Standard 3/4″ snap disc flanged mounts
- Ductwork and direct-mount airstream installations
- 120/240/277 VAC HVAC control circuits
- Manual reset safety interlocks and high-limit circuits
