Trane SWT1190 Low Pressure Cut-Out Switch, 155 Open / 275 Close PSI

Description

The Trane SWT1190 is a factory-engineered low pressure cut-out switch designed to protect refrigerant circuits from operating outside safe pressure limits. With a precisely calibrated opening set point of 155 PSI and a closing (reset) set point of 275 PSI, this switch automatically interrupts the circuit when system pressure drops to an unsafe level and resets once pressure recovers to the specified threshold — safeguarding compressors and refrigeration components from damage caused by low-charge or loss-of-refrigerant conditions.

Key Features

• Opening (cut-out) pressure: 155 PSI
• Closing (cut-in) pressure: 275 PSI
• Functions as a low pressure safety control to protect compressors and refrigerant circuits
• Automatic reset operation — restores circuit once safe pressure is re-established
• OEM Trane replacement part — engineered to exact factory specifications
• Direct drop-in replacement for compatible Trane systems

Application

The SWT1190 is a genuine Trane OEM pressure control switch intended for use in commercial and residential HVAC systems where low-side refrigerant pressure monitoring is required. It is commonly found in air conditioning and heat pump applications to prevent compressor operation during low-pressure fault conditions, extending equipment life and maintaining system reliability.

Why Choose OEM Trane Parts?

Using genuine Trane replacement components ensures compatibility, performance, and warranty integrity. The SWT1190 is built to the same standards as the original equipment, providing peace of mind for technicians and building owners alike.