Home » HVAC Pressure Switches

At SUCO ESI North America, we design and manufacture high-quality pressure switches and pressure transducers for commercial and industrial HVAC and refrigeration applications.
Engineered for accuracy, durability, and long-term reliability, our products support everything from air conditioning systems and heat pumps to chillers, compressors, and industrial refrigeration equipment. Whether you’re designing OEM systems, upgrading existing equipment, or replacing critical components, SUCO solutions help protect valuable equipment, improve energy efficiency, reduce downtime, and keep your systems operating safely and reliably for years to come.
What is a pressure switch used for in HVAC systems?
A pressure switch monitors system pressure and helps protect equipment by turning electrical circuits on or off when pressure reaches a preset level.
What’s the difference between a pressure switch and a pressure transducer?
A pressure switch provides an on/off signal at a specific pressure. A pressure transducer continuously measures pressure and sends a signal to a controller for monitoring and control.
Where are pressure switches commonly installed?
Pressure switches are found in air conditioners, heat pumps, chillers, refrigeration systems, compressors, furnaces, and many other commercial and industrial HVAC applications.
How do I choose the right pressure switch?
When selecting a pressure switch, consider the pressure range, switching point, electrical rating, thread connection, operating temperature, and the type of refrigerant or media used in your system.
View Related Article: Types of Pressure Switches Used in Refrigeration Systems
■ Diaphragm pressure switch rated up to 42 V
■ Durable zinc-plated steel housing
■ Snap-action switching with silver contacts
■ Overpressure protection up to 5,800 psi (400 bar)
■ Diaphragm pressure switches up to 250 V
■ Zinc-plated steel
■ Snap action with silver contacts
■ Overpressure safety up to 5,800 psi (up to 400 bar)
■ TE AMP Superseal 1.5® Connector
■ Overpressure Safety: Up to 4,350 psi
■ Field-adjustable pressure range: 1.45 to 725 psi
■ Deutsch DT04-3P Connector
■ Overpressure safety: Up to 1,450/5,801 psi
■ Field-adjustable pressure range: 4.35 to 1,450 psi
■ Diaphragm Pressure Switch up to 24 V with gold contacts
■ Overpressure safety up to 10,152 psi (up to 700 bar)
■ Made of zinc-plated steel
■ Overpressure safety: Up to 5,801 psi (400 bar)
■ Piston pressure switches up to 42 V
■ Zinc-plated steel
■ Snap action with silver contacts
■ Overpressure safety: 10,152 psi (700 bar)
■ AMP Superseal 1.5® Connector
■ Overpressure safety: Up to 10,152 psi
■ Field-adjustable pressure range: 725 to 2,900 psi
■ M12x1 DIN EN 61706-2-101A Connector
■ Overpressure safety: Up to 4,350 psi
■ Field-adjustable pressure range: 725 to 2,900 psi
■ Snap-Action Micro Switch with Silver Contacts
■ Field-adjustable pressure range: 725 to 2,175 psi
■ Overpressure safety: Up to 4,350 psi
■ Snap-Action Micro Switch with Silver Contacts
■ Piston pressure switches up to 250 V
■ Zinc-plated steel
■ Snap action with silver contacts
■ Overpressure safety: Up to 8,700 psi (up to 600 bar)
■ Piston pressure switches up to 250 V
■ Zinc-plated steel
■ Snap action with silver contacts
■ Overpressure safety: Up to 10,152 psi (up to 700 bar)
■ Deutsch DT04-3P Connector
■ Overpressure Safety: Up to 10,152 psi
■ Field-adjustable pressure range: 725 to 2,900 psi
■ M12x1 DIN EN 61706-2-101A Connector
■ Overpressure safety: Up to 4,350 psi
■ Field-adjustable pressure range: 4.35 to 1,450 psi
■ Snap-action micro switch with durable silver contacts
■ Adjustable pressure range: 4.35–725 psi (0.3–50 bar)
■ Cable-ready DIN connector with included screw terminals
■ Compact zinc-plated steel housing
■ Piston pressure switches up to 24V
■ Overpressure safety up to 10,152 psi (up to 700 bar)
■ Stainless steel housing
■ Snap action with silver contacts
■ Diaphragm Pressure Switch up to 24V
■ Overpressure safety: Up to 5,801 psi
■ Stainless steel housing
■ Snap action with silver contacts
■ Piston Pressure Switch up to 250V
■ Overpressure safety up to 10,152 psi (up to 700 bar)
■ Stainless steel housing
■ Snap action with silver contacts
■ Diaphragm Pressure Switch up to 250V
■ Overpressure safety up to 5,800 psi (up to 400 bar)
■ Stainless steel housing
■ Snap action with silver contacts
■ Pressure Range: From 0-40 bar to 0-500 bar
■ Overpressure Protection: From 150 bar to 1,000 bar
■ Burst Pressure: From 300 bar to 3,000 bar
■ Large Quantity Discounts Available – Contact us for pricing