and a mechanical position indicator to streamline field verification for contractors

Professional-Grade Build: Features a high-integrity brass body and brazed connections for maximum 500 PSI operating pressure resistance

This SPST pressure switch features an "open on low" configuration

Durable Material Composition: High-grade

Trane SWT3372 Pressure Switch 320788-703 and a mechanical position indicatorThe Trane SWT3372 Pressure Switch is an essential safety component designed for precise refrigerant monitoring in Trane and American Standard HVAC systems. Functioning as a low pressure cutout switch, this part is engineered to open the electrical circuit when system pressure drops below its calibrated setpoint, protecting the compressor from damage due to loss of charge or restricted flow. Specifically identified by technical designations such as