Rheem-Ruud 47-25350-09 Limit Switch

The Rheem-Ruud 47-25350-09 Limit Switch is a critical OEM safety component designed for precise thermal regulation in high-efficiency furnace systems. This SPST normally closed switch is engineered to break the electrical circuit when the plenum temperature reaches the 200°F fixed open temperature, preventing heat exchanger damage. Once the system cools to the 180°F fixed close temperature, the auto reset mechanism restores continuity, ensuring seamless equipment cycling without manual intervention. Featuring a 3-inch insertion length and a 60-degree strap angle, this board mounted limit switch is color-coded with a Tan/Tan identifier for rapid "in-the-field" verification. It is compatible with a wide range of Rheem, Ruud, and Weather King units as a direct L200-20F limit control. For contractors performing furnace limit switch replacement, this genuine part maintains system integrity and adheres to original factory specifications.

• Precise Safety Calibration: Fixed 200°F trip and 180°F reset points prevent nuisance tripping while maintaining strict safety overhead.
• OEM Compatibility: Replaces part numbers 47-25350-09, 47-24006-09, and 47-24017-09 for verified fitment.
• Efficient Installation: The 3" insertion depth and board-mount configuration allow for quick replacement during service calls.
• Robust Construction: Designed to handle 120/230VAC applications, ensuring versatility across different furnace models.

• What does the "Tan/Tan" color code signify? Rheem uses specific color coding on the switch body to designate the temperature range and mounting type, allowing technicians to identify the 200°F/180°F limit at a glance.
• Is this switch suitable for intermittent pilot or hot surface ignition systems? Yes, as long as the Rheem 47-25350-09 matches the existing thermal requirements and insertion depth of the factory-installed part.
• Why choose auto reset over manual reset? Auto reset switches are standard for primary limits in residential furnaces, allowing the system to resume heating once safe internal temperatures are reached, whereas manual resets are typically reserved for secondary rollout protection.

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.