Pressure Switches

Pressure switches work by forming an electrical contact when its input is subjected to a certain amount of fluid or air pressure.

How They Work
Pressure switches can activate with either rising or falling fluid pressure, so are essential components in any pressurized fluid system where automatic supervision is required.

Uses for pressure switches
Pressure switches are used in a variety of systems. For example, a pneumatic pressure switch would be used to automatically switch off an electric air compressor when the desired pressure had been achieved in, for instance, a car tire. Hydraulic pressure switches have a number of applications in the automotive industry, such as measuring oil levels.

Media
The RS Range of Pressure Switches can accommodate the measuring of a variety of media, such as air and gas for pneumatic applications, and everything from oil to sea water in fluid applications.

Pressure Switch Types
There are four key variations of pressure switch available in the RS range.
• Relative or Gauge Pressure Switches are calibrated for a variety of different purposes, and measure pressure relative to a given value.
• Differential Pressure Switches are commonly used for sensing a difference in pressure between two points in a system
• Vacuum Pressure Switches provide electrical feedback to measure a rise or fall of pressure in a system.

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Viewing 1 - 20 of 302 products
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Description Price Pressure Range Pressure Reading Type Media Measured Output Type Supply Voltage Minimum Pressure Reading Maximum Pressure Reading Process Connection Analogue Output Electrical Connection Minimum Operating Temperature Maximum Operating Temperature Accuracy Response Time
RS Stock No. 821-3689
Mfr. Part No.83282-00000100-05
BrandHoneywell
MYR189.81
Each
units
- - - - - - - - - - - - - -
RS Stock No. 124-2169
Mfr. Part No.XMPA06C2374N
MYR273.48
Each
units
1 → 6 (Rising)bar Differential Air, Fresh Water, Sea Water 3NC - 1 (Rising)bar 6 (Rising)bar G1/2 - Screw Clamp -25°C +70°C <3.5 (Repeat) % -
RS Stock No. 124-2119
Mfr. Part No.9012GAW4
MYR1,147.29
Each
units
1.5 → 7.5 (Decreasing) psi, 3.5 → 15 (Differential) psi Differential Air, Hydraulic Oil, Non-Corrosive Gas, Non-Corrosive Liquids SPDT-NO/NC 240 V ac, 250 V dc 1.5 (Decreasing) psi, 3.5 (Differential) psi 7.5 (Decreasing) psi, 15 (Differential) psi 0.25 in NPTF - 0.5 in NPT -10°F +185°F <4 (Repeat) % -
RS Stock No. 124-2170
Mfr. Part No.XMPA12B2131C
MYR170.97
Each
units
0.3 10.3 (Falling) bar, 1.3 12 (Rising) bar Differential Air, Fresh Water, Sea Water 2NC - 0.3 (Falling) bar, 1.3 (Rising) bar 10.3 (Falling) bar, 12 (Rising) bar G1/4 - Screw Clamp -25°C +70°C <3.5 (Repeat) % -
RS Stock No. 452-8883
Mfr. Part No.401001/000-459-405-502-20-601-61/000
BrandJumo
MYR1,014.42
Each
units
0 10bar Gauge, Relative Gas, Liquid Analogue 10 30 V dc 0bar 10bar G1/4 4 20 mA Wire Lead -20°C +125°C ≤0.5 % ≤3 ms
RS Stock No. 739-6715
Mfr. Part No.PK7520
MYR966.00
Each
units
0 → 400bar Relative Gas, Liquid 2NO 9.6 → 32 V dc 0bar 400bar G1/4 - M12 Connector -25°C +80°C <±2.5 % -
RS Stock No. 820-7035
Mfr. Part No.6742-0052
BrandHerga
MYR332.98
Each
units
60 → 120psi - Air, Gas, Liquid, Oil SPCO 220 V dc, 250 V ac 60psi 120psi BSP 1/8 - Spade Terminal -5°C +70°C ±10 % -
RS Stock No. 124-2127
Mfr. Part No.9013FSG2J21M4
BrandSquare D
MYR230.19
Each
units
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi Differential Fresh Water 2NC - 15 (Approximate) psi, 20 (Rising) psi 30 (Approximate) psi, 65 (Rising) psi 0.25 in NPSF - Screw Clamp -33°F +257°F ±3 (Repeat) % -
RS Stock No. 123-6135
Mfr. Part No.251234
MYR161.09
Each
units
55 → 135bar - Liquid SPST-NO - 55bar 135bar BSP 1/4 - 1/4 x 1/32 Spade Terminal -40°C +121°C ±3.3 bar -
RS Stock No. 124-2128
Mfr. Part No.9013FSG2J24
BrandSquare D
MYR178.21
Each
units
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi Differential Fresh Water 2NC - 15 (Approximate) psi, 20 (Rising) psi 30 (Approximate) psi, 65 (Rising) psi 0.25 in NPSF - Screw Clamp -33°F +257°F ±3 (Repeat) % -
RS Stock No. 739-6721
Mfr. Part No.PK7524
MYR938.00
Each
units
0 → 10bar Relative Gas, Liquid PNP-2NO 9.6 → 32 V dc 0bar 10bar G1/4 - M12 Connector -25°C +80°C <±2.5 % -
RS Stock No. 748-4717
Mfr. Part No.ISE40A-01-R
BrandSMC
MYR714.80
Each
units
-0.1 → 1MPa Vacuum Gas Analogue 12 → 24 V dc -0.1MPa 1MPa BSP 1/8 1 → 5 V, 4 → 20 mA Wire Lead -5°C +50°C ±0.2 % 2.5 ms
RS Stock No. 820-7022
Mfr. Part No.6742-0050
BrandHerga
MYR332.98
Each
units
25 → 55psi - Air, Gas, Liquid, Oil SPCO 220 V dc, 250 V ac 25psi 55psi BSP 1/8 - Spade Terminal -5°C +70°C ±10 % -
RS Stock No. 124-2120
Mfr. Part No.9012GAW5
MYR1,527.50
Each
units
3 → 150 (Decreasing) psi, 6 → 30 (Differential) psi Differential Air, Hydraulic Oil, Non-Corrosive Gas, Non-Corrosive Liquids SPDT-NO/NC 240 V ac, 250 V dc 3 (Decreasing) psi, 6 (Differential) psi 30 (Differential) psi, 150 (Decreasing) psi 0.25 in NPTF - 0.5 in NPT -10°F +85°F <4 (Repeat) % -
RS Stock No. 739-6724
Mfr. Part No.PK7521
MYR938.00
Each
units
0 → 250bar Relative Gas, Liquid 2NO 9.6 → 32 V dc 0bar 250bar G1/4 - M12 Connector -25°C +80°C <±2.5 % -
RS Stock No. 752-2434
Mfr. Part No.9012GAW5
MYR2,726.95
Each
units
6 → 30psi Differential Gas, Liquid Level - 600 V 6psi 30psi NPT 1/4 - 12" NPT -40°C +120°C ±0.1 → 1 % -
RS Stock No. 124-2130
Mfr. Part No.XMLA070D2C11
MYR1,000.55
Each
units
2 → 62.5 (Falling) bar, 5 → 70 (Rising) bar Differential Hydraulic Oil 1CO 240 V ac, 250 V dc 2 (Falling) bar, 5 (Rising) bar 62.5 (Falling) bar, 70 (Rising) bar G1/4 - DIN43650 Male 4-Pin Connector -25°C +70°C <2 (Repeat) % -
RS Stock No. 124-2125
Mfr. Part No.9013FSG2J20
BrandSquare D
MYR176.46
Each
units
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi Differential Fresh Water 2NC - 15 (Approximate) psi, 20 (Rising) psi 30 (Approximate) psi, 65 (Rising) psi 0.25 in NPSF - Screw Clamp -33°F +257°F ±3 (Repeat) % -
RS Stock No. 748-4723
Mfr. Part No.ZSE40AF-01-R
BrandSMC
MYR949.11
Each
units
-100 → 100kPa Vacuum Gas Analogue 12 → 24 V dc -100kPa 100kPa BSP 1/8 1 → 5 V, 4 → 20 mA Wire Lead -5°C +50°C ±0.2 % 2.5 ms
RS Stock No. 124-2172
Mfr. Part No.XMPA12B2144C243
MYR350.47
Each
units
- Differential - 2 N/C - 1.3bar 12bar G1/4 - Screw Terminals -30°C +100°C ±0.5 % -