Trane SWT3277 Pressure Switch 320720-756 especially on heat pump changeouts

especially on heat pump changeouts or low-ambient cooling setups

requiring no special tools for component extraction or seating

slip-resistant grip on the primary shaft

providing a precise seal against contaminants and scale

Trane SWT3277 Pressure Switch 320720-756 especially on heat pump changeoutsFor high pressure protection in commercial and industrial HVACR systems, the Trane SWT3277 Pressure Switch (also identified as Trane SWT03277) is a critical SPST high pressure switch designed for overpressure protection. This single pole, single throw component is engineered to maintain system integrity by monitoring refrigerant line pressures. The switch features 650 PSI open and 500 PSI close settings, providing a precise pressure switch cut out to