Danfoss Low Pressure Control Switch with Auto Reset

The Danfoss low pressure control switch with automatic reset is an HVAC and refrigeration pressure switch (also called a low pressure cut-out or LP pressure control). It monitors suction-side pressure in refrigeration, air conditioning, and heat pump systems. When pressure drops below the set cut-out point, the switch opens its electrical contacts and stops the compressor. This helps protect the compressor from running under low-pressure conditions.

Key Features:

• Automatic reset: the switch restores the circuit by itself once system pressure rises back above the cut-in setting, with no manual intervention needed
• Compressor protection: guards against operation at abnormally low suction pressure, such as from refrigerant loss or restricted flow
• Pressure-actuated switching: a sealed bellows element converts system pressure into dependable contact action
• Adjustable settings on many models, so the cut-out point and differential can match the application
• Designed for use with common refrigerants in commercial and industrial refrigeration and HVAC equipment
• Built to Danfoss quality standards for durability and repeatable switching accuracy

Danfoss is a global leader in refrigeration and air conditioning controls. Its pressure switches are trusted by technicians and OEMs for consistent performance and long service life. Select the variant that matches your system's pressure range, connection type, and electrical requirements.