Description
The Trane SWT3156 High Pressure Cut-Out Switch is a safety control set to open at 650 PSI to protect refrigerant circuits from excessive pressure conditions. It monitors discharge-side pressure and changes electrical contact status when the pressure exceeds its calibrated threshold, stopping compressor operation to avoid mechanical stress. The switch is factory-calibrated for fixed response behavior and is used in OEM refrigeration and cooling assemblies. Installed in condenser or compressor protection circuits in HVAC systems, it operates as a pressure safety element that supports controlled operation by interrupting power during abnormal high-pressure events.
