Pressure & Vacuum Switches

Pressure and vacuum switches are used in pneumatic systems to allow pressure or vacuum to flow from one place to another, ensuring that the overall system remains stable. They form part of the control system, ensuring that optimal conditions are maintained.

How do pressure and vacuum switches work?

Pressure and vacuum switches work in different ways. Pressure switches are controlled by the level of fluid pressure on the input. When the pressure reaches a certain level, an electrical contact will be closed, ensuring that the pressure stays within given bounds. Vacuum switches regulate the flow of vacuum between two spaces, ensuring it is present where it is needed.

Types of pressure and vacuum switches

Different pressure and vacuum 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 of course will impact which one you choose for your project. These switches also have different types of connection, different maximum and minimum pressure settings, and varying voltage drops.


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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. 100-0679
Mfr. Part No.PAC50-DGD
BrandSick
R 2,699.55
Each
units
0bar 10 bar Positive Pressure Air G 1/4 Female, M12 4-Pin - 17 → 30V dc M12, 1/4 in PAC50 Normally Closed, Normally Open G, Metric 0°C +60°C IP65, IP67
RS stock no. 126-0212
Mfr. Part No.PE-1/8-1N
BrandFesto
R 838.02
Each
units
0bar 8 bar - Compressed Air G 1/8 PE Converter 220 V dc, 250 V ac 1/8 in PE Normally Closed, Normally Open G 0°C +60°C IP00
RS stock no. 740-6395
Mfr. Part No.ZSE30AF-01-E-G
BrandSMC
R 1,496.72
Each
units
-100kPa 100 kPa Compound Pressure Air, Gas R 1/8 - 12 → 24V dc 1/8 in ZSE30A(F) - R 0°C +50°C IP40
RS stock no. 296-9989
BrandRS PRO
R 2,138.50
Each
units
2bar 40 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. 317-055
BrandRS PRO
R 204.39
Each
units
- - - - - - - - 6470 - - - - -
RS stock no. 297-0018
BrandRS PRO
R 2,134.98
Each
units
30bar 300 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. 743-6605
Mfr. Part No.ISE30A-01-P
BrandSMC
R 1,212.10
Each
units
-0.1MPa 1 MPa Positive Pressure Air, Gas R 1/8 - 12 → 24V dc 1/8 in ISE30A - R 0°C +50°C IP40
RS stock no. 792-7845
Mfr. Part No.ISE30A-01-N-LB
BrandSMC
R 1,374.81
Each
units
-0.1MPa 1 MPa, 1.5 MPa Positive Pressure Air, Non Corrosive Gas, Non Flammable Gas R 1/8 NPN Open Collector 12 → 24V dc 1/8 in ISE - R 0°C +50°C IP40
RS stock no. 906-9461
Mfr. Part No.A3000-00
R 5,979.52
Each
units
0psi 0.01 psi Differential Air, Gas, Non Combustible NPT 1/8 in Female Pressure Switch/Gauge 120V ac 1/8 in A3000 DPDT NPT -6.67°C +48.9°C -
RS stock no. 906-9540
Mfr. Part No.DH3-005
R 5,508.51
Each
units
0psi 0.09 psi Differential Air, Non Combustible NPT 1/8 in Female Pressure Transmitter 12 → 28V ac/dc 1/8 in DH3 SPDT NPT 0°C +60°C -
RS stock no. 100-0680
Mfr. Part No.PAC50-DCC
BrandSick
R 2,233.86
Each
units
0bar 10 bar Positive Pressure Air G 1/4 Female, M12 5-Pin, 4 mm Pneumatic Hose - 17 → 30V dc M12, 1/4 in PAC50 Normally Closed, Normally Open G, Metric 0°C +60°C IP65, IP67
RS stock no. 366-3979
Mfr. Part No.0880200
BrandNorgren
R 1,736.10
Each
units
0.2bar 2 bar Positive Pressure Gas, Liquid G 1/4 - - 1/4 in 18D Normally Closed, Normally Open G 0°C +80°C IP65
RS stock no. 317-730
BrandRS PRO
R 348.03
Each
units
- - - - - - - - 6442 - - - - -
RS stock no. 843-0367
Mfr. Part No.IS3000-N02
BrandSMC
R 1,354.77
Each
units
- 0.8 (Operating) MPa, 1 (Proof) MPa - Air, Inlet Gas NPT 1/4 Reed 125 V dc, 250 V ac 1/4 IS3000 Normally Closed, Normally Open NPT -5°C +60°C IP40
RS stock no. 847-7029
Mfr. Part No.ZS-28-B
BrandSMC
R 57.92
Each
units
- - - - - - - - ZS - - - - -
RS stock no. 407-6089
Mfr. Part No.0882300
BrandNorgren
R 2,068.78
Each
units
25bar 250 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. 721-3815
Mfr. Part No.ISE30A-01-B-G
BrandSMC
R 1,418.70
Each
units
- 1.5 MPa - - - - - M5 x 0.8, 1/8 in - - Metric, R - - -
RS stock no. 880-2299
BrandRS PRO
R 1,562.92
Each
units
0.2bar 2.5 bar - Fluid 1/4 in BSP Male Adjustable 250V ac 1/4 in F4 Normally Closed, Normally Open G -25°C +85°C IP65
RS stock no. 826-2521
Mfr. Part No.IS10E-30F02-6L
BrandSMC
R 1,491.34
Each
units
- 0.7 MPa Positive Pressure Air, Inert Gas G 1/4 in Reed 100V ac/dc 1/4 in IS10 Normally Open G -5°C +60°C IP40
RS stock no. 227-3632
Mfr. Part No.ZSM1-121L
BrandSMC
R 1,299.40
Each
units
-80kPa -27 kPa Vacuum Air, Gas R 1/8 Reed 100V ac/dc 1/8 in ZSM1 - R -5°C +60°C -