The Rheem-Ruud 47-23113-04 is a general purpose temperature limit switch engineered for reliable overheat protection in furnaces and air handling equipment. White color coded for quick field identification, this auto-reset switch provides dependable SPST normally closed operation — opening the circuit when temperatures reach a dangerous threshold and automatically restoring operation once conditions return to safe levels.
Key Specifications
- Fixed Close (Reset) Temperature: 120°F
- Fixed Open (Trip) Temperature: 200°F
- Switch Type: SPST (Single-Pole, Single-Throw), Normally Closed
- Reset Type: Auto Reset
- Color Code: White
- Application: General Purpose Limit Switch
- OEM Part Number: 47-23113-04
- Compatible Brand: Rheem / Ruud
How It Works
Under normal operating conditions, the switch remains closed, allowing current to flow through the control circuit. When the sensed temperature rises to 200°F, the switch opens and interrupts the circuit — shutting down the burner or heating element to prevent damage. Once temperatures drop back to 120°F, the switch automatically resets to the closed position, restoring normal system operation without manual intervention.
Application & Compatibility
- Designed as a direct OEM replacement for Rheem and Ruud heating equipment
- Suitable for residential and light commercial furnaces and air handlers
- White color coding aids in fast visual identification during service calls
- Auto-reset design reduces service callbacks caused by manual-reset nuisance trips
Why Choose the Rheem-Ruud 47-23113-04?
Using genuine OEM limit switches ensures your equipment operates within factory-specified safety parameters. The fixed-temperature design eliminates field calibration errors, and the auto-reset function keeps systems running with minimal downtime. Stock this part to handle routine furnace maintenance and emergency service calls with confidence.








