Description
The Trane SWT1999 SPDT Differential Pressure Switch is a genuine OEM HVAC control component that monitors and responds to pressure differences in heating, ventilation and air conditioning systems. It uses a single pole, double throw switching mechanism to open or close electrical circuits based on changes in air pressure. This helps ensure the system operates safely and efficiently by controlling blower and other equipment when pressure changes reach a set threshold.
Key Features
- Single pole, double throw (SPDT) differential pressure switch suitable for Trane HVAC systems.
- Designed to activate at approximately 0.43 pounds per square inch (PSI) of pressure, helping maintain proper airflow and system performance.
- Compatible with standard HVAC electrical systems and pressure sensing applications.
- Built to OEM Trane specifications for reliable operation and long service life.







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