Rheem-Ruud PD476634 High Limit Switch - L145-40F

The Rheem-Ruud PD476634 is an L145-40F high limit safety switch designed for residential and commercial HVAC equipment. This critical safety component monitors system temperature and automatically shuts off the burner when temperatures exceed safe operating limits, protecting the heat exchanger and preventing potential damage to the furnace.

Key Features:

• L145-40F temperature rating for precise control
• Automatic reset functionality returns system to operation once temperature drops to safe levels
• Direct OEM replacement part for Rheem and Ruud heating systems
• Snap-mount design for easy installation and secure attachment
• Durable construction for long-lasting reliability in demanding applications

This genuine Rheem-Ruud limit switch ensures your heating system operates safely and efficiently. The L145-40F designation indicates the temperature range at which the switch activates, providing critical overheat protection. Commonly used in gas furnaces and other heating equipment where temperature monitoring is essential for safe operation.