Trane SWT1278 Limit Switch 320819-301 Common indicators include increased amperage

Common indicators include increased amperage draw

Signal Reliability: Provides consistent multi-path data transmission between the PCB and interface

This OEM-spec spark ignition electrode maintains precise positioning within the burner flame path

Flexible installation: The 12-inch capillary allows for versatile mounting within compact equipment chassis

Precise Flow Regulation: The 3

Trane SWT1278 Limit Switch 320819-301 Common indicators include increased amperageThe Trane SWT1278 Limit Switch is a critical safety component designed for precise thermal regulation within furnace supply plenums and industrial heating configurations. Engineered for high reliability performance, this fixed temperature limit control features a 150F opening setpoint (150op) to prevent heat exchanger overheating and a 120F closing setpoint (120cl) for circuit reset. As a veteran grade OEM replacement part, the SWT1278 is essential