Description
Rheem-Ruud 47-102473-01K SPST NC Auto-Reset Limit Switch
The Rheem-Ruud 47-102473-01K is an OEM replacement SPST (Single-Pole, Single-Throw), Normally Closed (NC), Auto-Reset (AR) high-limit switch engineered for use in Rheem and Ruud heating systems. This limit switch serves as a critical safety component, monitoring heat exchanger and plenum temperatures to protect the furnace and home from overheating conditions. When temperatures rise to the open setpoint, the switch interrupts the burner circuit; once the system cools to the close setpoint, it automatically resets — keeping your system running with minimal downtime.
Key Specifications
- Part Number: 47-102473-01K
- Switch Type: SPST (Single-Pole, Single-Throw)
- Contact Configuration: Normally Closed (NC)
- Reset Type: Auto-Reset (AR)
- Open Temperature: 150°F
- Close Temperature: 130°F
- Compatible Brands: Rheem, Ruud
Features & Benefits
- Auto-reset design automatically restores circuit continuity once safe operating temperatures are reached
- Normally Closed configuration ensures burner circuit is interrupted upon high-temperature detection
- OEM replacement part ensures proper fit and reliable performance in Rheem and Ruud furnaces
- Protects heat exchangers, blower components, and connected equipment from thermal damage
- Precise open/close differential (150°F open, 130°F close) provides consistent, repeatable protection
Application
Designed as a direct OEM replacement for Rheem and Ruud gas furnaces, this limit switch is typically located in the supply air plenum or on the heat exchanger. It is a key safety device in the furnace control circuit, preventing operation under unsafe high-temperature conditions. Always verify compatibility with your specific furnace model before installation.
Reviews
There are no reviews yet.