Ruud 47-25349-07 Furnace Limit Switch 200-220F Auto Reset

Product Description

The RUUD 47-25349-07 is a single-pole, single-throw (SPST) auto-reset limit switch designed for use in gas furnace applications. Rated for 120/230 VAC operation at 15/10 amps, this normally closed limit switch opens at 220 degrees F and resets at 200 degrees F. The green color coding aids in field identification during service calls. It features a 3-inch insert and is built as a direct OEM-style replacement for qualified RUUD gas furnace models. Licensed HVAC technicians and furnace service technicians are the primary installers of this component.

This limit switch is intended for residential gas furnace applications where over-temperature protection is required. It monitors heat exchanger temperatures and interrupts the burner circuit if the furnace exceeds the rated trip threshold, protecting the system from damage due to restricted airflow or equipment malfunction. Compatible models for this switch include the RGLH05AUE and RGLH05BMK gas furnace units as specified by RUUD.

Key Features

• Auto-reset design closes at 200 degrees F, reopens at 220 degrees F without manual intervention
• SPST normally closed configuration — opens circuit on over-temperature condition
• Dual voltage rated: 120/230 VAC at 15/10 amps respectively
• Green color coding for fast visual identification during service
• 3-inch insert mount for direct OEM-style fitment
• Single-pole construction for straightforward wiring integration

Compatibility

This limit switch is specified for use on RUUD RGLH05AUE and RGLH05BMK gas furnace models.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable local codes and the furnace manufacturer's service documentation. Always shut off power to the furnace at the disconnect switch or breaker before removing or installing any limit switch. Verify that the replacement switch orientation and insert depth match the original before restoring power. Do not bypass or defeat the limit switch — doing so removes a critical over-temperature safety control from the system.

Technical Specifications

• Voltage Rating: 120/230 VAC
• Amperage Rating: 15/10 amps
• Open Temperature: 220 degrees F
• Close Temperature: 200 degrees F
• Switch Type: SPST, Normally Closed
• Reset Type: Auto Reset
• Poles: 1-Pole
• Color: Green
• Insert Length: 3 inches
• Length: 5.45 inches
• Width: 3.1 inches
• Height: 2.15 inches
• Weight: 0.09 pounds

Standard Information

• Brand: RUUD
• Manufacturer Part Number: 47-25349-07