Trane SWT1261 Limit Switch the 620-402 features a robust

the 620-402 features a robust 4x4 plate

preventing common ignition failures such as weak sparks or delayed lighting

this replacement lens assembly allows for clear diagnostic visibility without the labor-intensive process of replacing the entire indicator body

This 40-55F Auto Limit Switch serves as a direct

Trane SWT1261 Limit Switch the 620-402 features a robustThe Trane SWT1261 Limit Switch is a critical safety component designed for precise thermal regulation within residential furnaces. Engineered to replace the C340056P07 and SWT01261, this high limit control monitors the internal heat exchanger temperature to prevent overheating. Operating on an automatic reset logic, this thermal limit switch is factory calibrated to open the circuit when temperatures reach 260F and automatically close (reset) at 230F.