Rheem-Ruud 47-20045-02 Automatic Limit Switch F - 110-150

The Rheem-Ruud 47-20045-02 is an automatic limit switch designed for use in residential and light commercial HVAC systems. This safety control monitors temperature and automatically opens the circuit when the temperature reaches the upper limit setting, protecting the system from overheating conditions.

Key Features:

• Temperature range: 110°F to 150°F operating range
• Automatic reset functionality for convenient operation
• Direct replacement OEM part for Rheem and Ruud heating equipment
• Snap-disc design for reliable temperature sensing
• Used in furnaces, air handlers, and heat pump systems

This limit switch is a critical safety component that prevents equipment damage and potential fire hazards by interrupting power to the heating element when excessive temperatures are detected. The automatic reset feature allows the system to resume normal operation once temperatures return to safe levels, eliminating the need for manual intervention.