Carrier 312926-258 Low Pressure Switch, 55-23 PSI

Description

The Carrier 312926-258 is an OEM replacement low pressure switch engineered to protect refrigeration and air conditioning systems from operating under unsafe low-pressure conditions. Designed as a direct-fit replacement for compatible Carrier equipment, this switch helps maintain system integrity and prevents compressor damage caused by low refrigerant charge or loss of refrigerant pressure.

Key Features

• OEM Carrier replacement part — ensures precise fit and reliable performance
• Cut-out pressure: 23 PSI — opens circuit to protect system at low-pressure threshold
• Cut-in pressure: 55 PSI — resets to resume normal operation once safe pressure is restored
• Monitors suction-side refrigerant pressure to safeguard compressor and system components
• Helps prevent compressor short-cycling and damage from loss of refrigerant
• Durable construction for long service life in demanding HVAC/R applications

Application

This low pressure switch is designed for use in Carrier commercial and residential refrigeration and air conditioning systems. It is a critical safety control component that monitors refrigerant pressure on the low side of the system. When pressure drops below the cut-out setpoint of 23 PSI, the switch opens the control circuit to shut down the compressor, protecting it from damage. The system resumes normal operation once pressure recovers to the cut-in setpoint of 55 PSI.

Specifications

• Part Number: 312926-258
• Brand: Carrier
• Type: Low Pressure Switch
• Cut-In Pressure: 55 PSI
• Cut-Out Pressure: 23 PSI
• Application: Refrigeration / Air Conditioning Systems