Trane SWT1696 Flow Switch 321042-401 Safety Interrupter: Integrated pressure-sensitive safety

Safety Interrupter: Integrated pressure-sensitive safety device prevents case rupture under fault conditions

Persistent Programming: Eliminates service calls for lost settings using non-volatile memory that retains all configuration data during power interrupts

and Honeywell models

Internal 10K Ohm Sensitivity: Optimized for municipal water and general-purpose conductivity sensing

Trane SWT1696 Flow Switch 321042-401 Safety Interrupter: Integrated pressure-sensitive safetyIdentify and replace faulty temperature sensitive safety components with the Trane SWT1696, a high precision Reverse Flow Switch engineered for specific furnace and air handler applications. This genuine OEM Trane replacement part is essential for monitoring airflow direction and preventing unsafe operation during reverse flow conditions. Designed for tight tolerances, the SWT1696 features an operational temperature rating where it opens at 140F (60C)