Description
Rheem-Ruud 47-103895-02 General Purpose Temperature Limit Switch
The Rheem-Ruud 47-103895-02 is a factory-engineered, general purpose temperature limit switch designed for precise thermal protection in HVAC heating systems. Built to OEM specifications, this auto-reset limit switch safeguards equipment by interrupting the circuit when temperatures reach unsafe levels — then automatically restoring operation once conditions return to normal.
Key Specifications
- Fixed Close Temperature: 100°F
- Fixed Open Temperature: 120°F
- Switch Type: SPST (Single Pole, Single Throw)
- Switch Configuration: Normally Closed (NC)
- Reset Type: Automatic (Auto Reset)
- Application: General Purpose Limit Switch
- OEM Part Number: 47-103895-02
- Compatible Brand: Rheem / Ruud
How It Works
This normally closed SPST limit switch remains in the closed (conducting) position under normal operating conditions. When the sensed temperature rises to the fixed open threshold of 120°F, the switch opens the circuit, shutting down the heating element or burner to prevent overheating. Once temperatures drop back to 100°F, the auto-reset function automatically restores the circuit — eliminating the need for manual intervention and minimizing system downtime.
Applications & Compatibility
- Rheem and Ruud residential and light commercial furnaces
- Gas and electric heating systems requiring thermal limit protection
- OEM replacement for systems originally equipped with part 47-103895-02
Why Choose the Rheem-Ruud 47-103895-02?
- Genuine OEM part — ensures proper fit and reliable performance
- Auto-reset design reduces service calls and manual resets
- Fixed temperature settings provide consistent, repeatable protection
- SPST normally closed configuration integrates seamlessly with standard furnace control circuits
- General purpose design suitable for a wide range of Rheem/Ruud heating applications
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