Rheem-Ruud 47-25350-05 Limit Switch

Ensure cabinet safety and operational reliability with the Rheem-Ruud 47-25350-05 Limit Switch. This board mounted furnace limit control is engineered for specific thermal protection in Rheem and Ruud gas furnaces, featuring a 3-inch insertion length for precise airflow temperature monitoring. As an auto-reset temperature switch, this component maintains system uptime by automatically closing the circuit once temperatures drop back to safe levels. The SPST normally closed configuration is color-coded with high-visibility orange/orange markings, identifying it as a 160-degree F open / 140-degree F close safety device. Built to handle standard 120/230VAC applications, this OEM replacement limit switch utilizes robust 1/4-inch quick-connect terminals for a secure, low-resistance electrical interface. Whether you are performing a seasonal tune-up or troubleshooting a high-limit trip, this L160-20 temperature control provides the exact thermal tolerances required to prevent heat exchanger damage and ensure professional-grade furnace performance.

• System Protection: Precisely calibrated to open at 160°F and close at 140°F, mitigating the risk of overheating within the furnace cabinet.
• Direct OEM Compatibility: Designed as a specific board mounted limit switch for Rheem, Ruud, and WeatherKing units to simplify field replacement.
• Automatic Recovery: Features an auto-reset mechanism that eliminates the need for manual intervention after a temporary thermal event.
• Durable Construction: Features an enclosed disc face and high-grade SPST normally closed switch contacts rated for 15/10 Amps at 120/230VAC.
• Standardized Installation: Utilizes 1/4-inch quick-connect terminals and a 3" insertion probe for gas furnace high limit applications.

What does the orange color code signify on this Rheem limit switch?
The orange/orange color coding is a visual identifier for the thermal rating, specifically indicating a fixed open temperature of 160°F and a fixed close temperature of 140°F.

Can I use this as a universal replacement for any 160-degree limit?
While the thermal ratings may match other parts, this is a board-mounted specific design with a 3-inch insertion depth. Always verify the manufacturer part number (47-25350-05) to ensure proper mounting and probe clearance in the airflow path.

What causes this limit switch to trip repeatedly?
Common field issues include restricted airflow from dirty filters, a failing blower motor, or blocked secondary heat exchangers. If the auto-reset continues to cycle, check for high static pressure or undersized ductwork.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.