Industrial Grade Durability: Heavy-duty cast iron body construction withstands rigorous temperature cycling and high-pressure steam environments

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

Durable Solenoid Interaction: Built to precise tolerances to ensure the reversing valve slide shifts reliably even after thousands of cycles

To maintain system integrity and prevent solenoid coil burnout

Durable Material Composition: High-grade

Trane SWT3372 Pressure Switch 320788-703 Industrial Grade Durability: Heavy-duty castThe 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