Vacuum Switches

Vacuum switches are electronic or mechanical devices which are used in pneumatic systems to allow pressure or vacuum to flow from one place to another, ensuring that the overall system remains stable. These switches are used in many applications for pressure control and safety interlock functionality, ensuring that optimal conditions are maintained.

Vacuum switches regulate the flow of a vacuum between two spaces, ensuring it's always present where needed. Vacuum switches operate under different pressure types (negative, electro-mechanical, relative, or compound pressure). The required operating conditions for your system will determine the best switch choice.

Vacuum pressure switches are designed for sensing pressure changes in a vacuum. A pre-set point will be determined, and once this is reached or surpassed, the vacuum switch will either open or close the electrical connection.

Types of pressure and vacuum switches

These switches operate under different types of pressure, such as negative pressure, electro-mechanical pressure, relative pressure and compound pressure. This is determined by the conditions in which they operate, and will impact which one you choose. These switches also have different types of connection, different maximum and minimum pressure settings, and varying voltage drops.

Digital hydraulic pressure switches are pressure sensors used as responsive devices to track fluid pressure levels. They close off electrical contacts when the determined fluid pressures are attained. They are designed to either make contact upon pressure increases, or on pressure decreases.

What are digital hydraulic pressure switches used for?

Digital Hydraulic Pressure Switches are used as automatic supervisory products in systems containing pressurised fluids. The manufacturing industry make use of them as feedback devices to highlight spikes and drops in fluid pressures. They are typical in mobile industrial equipment with modern displays, where the oil pressure will be shown as numeric and alarms activated if the engine pressure levels drop beyond certain points.

Applications:

Vacuum switches can be used in various industrial environments. They are considered to be an essential device for monitoring and control tasks in hydraulic and processing industries. These type of switches can sense a change in the vacuum and will open or close an electrical circuit when the set point is reached.


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Description Price Minimum Operating Pressure Maximum Operating Pressure Pressure Type Suitable Media Connection Type Voltage Rating Connection Thread Size Manufacturer Series Contact Operation Connection Thread Standard Minimum Operating Temperature Maximum Operating Temperature IP Rating
RS Stock No. 297-0052
BrandRS PRO
€36.90
Each
units
1bar 12 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS Stock No. 743-6605
Mfr. Part No.ISE30A-01-P
BrandSMC
€75.49
Each
units
-0.1MPa 1 MPa Positive Pressure Air, Gas R 1/8 - 12 to 24V dc 1/8 in ISE30A - R 0°C +50°C IP40
RS Stock No. 721-4041
Mfr. Part No.ZSE10-M5-B-G
BrandSMC
€94.65
Each
units
500kPa 500 kPa - - M5 x 0.8 - - M5 x 0.8 - - Metric -5°C +50°C -
RS Stock No. 743-6598
Mfr. Part No.ZSE40A-01-T
BrandSMC
€166.62
Each
units
-101.3kPa 0 kPa Vacuum Air, Gas R 1/8 Reed 12 to 24V dc 1/8 in ZSE40A(F) - R -5°C +50°C IP65
RS Stock No. 389-6006
Mfr. Part No.PS1-P1091
BrandParker
€79.06
Each
units
2bar 5 bar Positive Pressure - - - 250V - PS1 Normally Closed, Normally Open - -15°C +60°C -
RS Stock No. 297-0030
BrandRS PRO
€138.67
Each
units
50bar 400 bar Positive Pressure Oil G 1/4 Adjustable 250V ac/dc 1/4 in K5 Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 100-0678
Mfr. Part No.PAC50-DCD
BrandSick
€137.50
Each
units
0bar 10 bar Positive Pressure Air G 1/4 Female, M12 4-Pin, 4 mm Pneumatic Hose - 17 to 30V dc M12, 1/4 in PAC50 Normally Closed, Normally Open G, Metric 0°C +60°C IP65, IP67
RS Stock No. 598-822
Mfr. Part No.R901094159
€196.55
Each
units
- 350 bar Positive Pressure Oil G 1/4 - 250V ac/dc 1/4 in HED8 - G -30°C +80°C IP65
RS Stock No. 363-5968
BrandRS PRO
€59.49
Each
units
1bar 10 bar Positive Pressure - G 1/4 Adjustable 250V ac/dc 1/4 in K3 Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 246-2422
Mfr. Part No.PS1000-R06L-Q
BrandSMC
€85.20
Each
units
- 1 MPa Positive Pressure Air, Non Corrosive Gas - Solid State 12 to 24V dc - PS1000 - - 0°C +60°C IP40
RS Stock No. 366-3985
Mfr. Part No.0880300
BrandNorgren
€137.01
Each
units
0.5bar 8 bar Positive Pressure Gas G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G -10°C +80°C IP65
RS Stock No. 297-0080
BrandRS PRO
€36.90
Each
units
20bar 200 bar Positive Pressure - G 1/4 Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS Stock No. 317-730
BrandRS PRO
€21.70
Each
units
- - - - - - - - 6442 - - - - -
RS Stock No. 723-012
Mfr. Part No.81513552
BrandCrouzet
€56.78
Each
units
2bar 8 bar Positive Pressure Air, Gas, Liquid Push In Adjustable 220 to 230V 4 mm 81 Normally Closed, Normally Open - -10°C +70°C IP20
RS Stock No. 302-5759
Mfr. Part No.IS 3000-F02
BrandSMC
€66.03
Each
units
- 8 bar Positive Pressure Air, Gas Rc 1/4 - 30V dc, 125 V ac, 125 V dc, 250 V ac 1/4 in IS3000 Normally Closed, Normally Open Rc -5°C +60°C -
RS Stock No. 743-6611
Mfr. Part No.ISE40A-M5-T
BrandSMC
€119.58
Each
units
-0.1MPa 1 MPa Positive Pressure Air, Gas M5 x 0.8 Reed 12 to 24V dc M5 x 0.8 ISE40A - Metric -5°C +50°C IP65
RS Stock No. 622-3631
Mfr. Part No.0882100
€134.22
Each
units
5bar 70 bar Positive Pressure Fluid, Oil G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G -20°C +80°C IP65
RS Stock No. 844-4644
Mfr. Part No.PS1000-R06L
BrandSMC
€66.75
Each
units
- 1 MPa Positive Pressure Air, Non Corrosive Gas, Non Flammable Gas Push In 6 mm NPN, PNP - - PS1000 - - 0°C +60°C IP40
RS Stock No. 721-3815
Mfr. Part No.ISE30A-01-B-G
BrandSMC
€87.98
Each
units
- 1.5 MPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS Stock No. 721-4057
Mfr. Part No.ZSE30AF-01-B-G
BrandSMC
€93.97
Each
units
- 500 kPa - - - Digital - M5 x 0.8, 1/8 in - PNP Metric, R - - 40