Trane SWT1260 Limit Switch

The Trane SWT1260 Limit Switch is a critical OEM safety component designed for high-limit protection in residential and commercial furnaces. This 3-inch insertion limit switch features a precision L200-30 temperature rating, meaning it is engineered to open the circuit at 200°F and automatically reset once the temperature drops by a 30°F differential to 170°F. As a direct replacement for Trane part number C340056P05, this auto-reset thermal switch ensures the burner assembly shuts down if heat exchanger temperatures exceed safe operating parameters, preventing equipment damage and hazardous conditions.

For technicians servicing American Standard or Trane HVAC systems, the SWT1260 offers a snap-action bimetal disc for reliable switching. This furnace limit control is frequently used to resolve limit switch tripping issues caused by restricted airflow, such as dirty filters or failed blower motors. Integrating this genuine Trane replacement part restores the system's overheat protection and maintains the original factory specifications for 170-200F thermal cycling.

• OEM Compatibility: Exact replacement for SWT1260 and C340056P05, ensuring seamless fitment in 3-inch mounting ports.
• Precise Thermal Control: Rated for 200 degree open and 170 degree close, providing stable high-limit safety.
• Automatic Reset: Eliminates the need for manual intervention after the heat exchanger reaches a safe 170F reset temperature.
• Industrial Build Quality: Constructed with durable materials to withstand high-cycle environments in gas-fired furnaces.

• How do I test if my Trane SWT1260 is faulty? Use a multimeter to check for continuity across the terminals when the furnace is cool. No continuity indicates the switch is stuck open and requires replacement.
• Why does my furnace limit switch keep tripping? Common causes include a clogged air filter, a failing blower motor, or blocked ductwork that causes the heat exchanger to exceed 200°F.
• Can I use a C340056P05 in place of an SWT1260? Yes, these are identical part numbers with the same 170-200F auto limit specifications.

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.