The Trane SWT02293 (73814784) is a precision air pressure switch designed for use in HVAC systems to ensure safe operation by monitoring air flow or pressure. Configured with 1 pole, normally open (NO) contact and calibrated to trip at 0.50" Water Column (WC), it helps prevent system malfunction or unsafe operation due to inadequate pressure levels. Key Features Set point: 0.50" WC for accurate air pressure detection Contact type: Single Pole, Normally Open (SPNO) Reliable OEM Trane component Supports safe and efficient system operation Designed for use in various furnace and air handler models Specifications Model: SWT02293 Alternate Part Number: 73814784 Pressure Range: 0.50" WC Pole Type: 1 Pole Contact Type: Normally Open Mounting: Standard HVAC-compatible design Application: Airflow safety monitoring Compatible Models TDD1A060A9361AA TDD1C100A9541BB TDD140C960F1 TDD1D120A9601AA TDD100C948F2 TDD1C120A9541BB TDD100C945F1 TDD1B060A9361AC TDD120C960F0 TDD1C100A9481AB Why Choose This Item Choose the Trane SWT02293 Air Pressure Switch for dependable performance, OEM-quality assurance, and precise air pressure monitoring. Ideal for furnace protection and operational consistency, it is a critical part for maintaining safety and compliance in Trane heating units.