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 233 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. 124-2131
Mfr. Part No.XMLA160E2S11
SGD267.29
Each
units
10 → 160 (Rising) bar, 4.5 → 142 (Falling) bar Differential Fresh Water 1CO 240 V ac, 250 V dc 10 (Rising) bar, 4.5 (Falling) bar 142 (Falling) bar, 160 (Rising) bar G1/4 - Screw Clamp -25°C +70°C <2 (Repeat) % -
RS Stock No. 752-2437
Mfr. Part No.9012GAW6
SGD466.91
Each
units
10 → 49psi Differential Gas, Liquid Level - 600 V 10psi 49psi NPT 1/4 - 12" NPT -40°C +120°C ±0.1 → 1 % -
RS Stock No. 124-2121
Mfr. Part No.9012GAW6
SGD466.91
Each
units
10 → 49 (Differential) psi, 5 → 250 (Decreasing) psi Differential Air, Hydraulic Oil, Non-Corrosive Gas, Non-Corrosive Liquids SPDT-NO/NC 240 V ac, 250 V dc 10 (Differential) psi, 5 (Decreasing) psi 250 (Decreasing) psi, 49 (Differential) psi 0.25 in NPTF - 0.5 in NPT -10°F +185°F <4 (Repeat) % -
RS Stock No. 124-2169
Mfr. Part No.XMPA06C2374N
SGD79.54
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. 124-2157
Mfr. Part No.XMLR100M2P05
SGD572.30
Each
units
5 → 97 (Falling) bar, 8 → 100 (Rising) bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid PNP-2NO/NC 24 V dc 5 (Falling) bar, 8 (Rising) bar 100 (Rising) bar, 97 (Falling) bar G1/4 - M12 4-Pin Connector -20°C +80°C ≤0.2 (Repeat) %, ≤0.6 (Output) %, ≤1 (Overall) % ≤5 ms
RS Stock No. 124-2171
Mfr. Part No.XMPA12B2142
SGD63.11
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. 752-2434
Mfr. Part No.9012GAW5
SGD444.67
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. 124-2173
Mfr. Part No.XMPA12C2131C
SGD52.73
Each
units
0.3 → 10.3 (Falling) bar, 1.3 → 12 (Rising) bar Differential Air, Fresh Water, Sea Water 3NC - 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. 124-2120
Mfr. Part No.9012GAW5
SGD444.67
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 150 (Decreasing) psi, 30 (Differential) psi 0.25 in NPTF - 0.5 in NPT -10°F +85°F <4 (Repeat) % -
RS Stock No. 835-2839
Mfr. Part No.XMLR010G1N25
SGD578.12
Each
units
0 → 10bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid 1 x NPN, Analogue 24 V dc 0bar 10bar G1/4 4 → 20 mA M12 Connector -20°C +80°C ≤0.1 % ≤10 (Analogue) ms, ≤5 (Discrete) ms
RS Stock No. 124-2156
Mfr. Part No.XMLR100M1P25
SGD607.22
Each
units
5 → 97 (Falling) bar, 8 → 100 (Rising) bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid Analogue, PNP-NO/NC 24 V dc 5 (Falling) bar, 8 (Rising) bar 100 (Rising) bar, 97 (Falling) bar G1/4 4 → 20 mA M12 4-Pin Connector -20°C +80°C ≤0.2 (Repeat) %, ≤0.6 (Output) %, ≤1 (Overall) % ≤10 (Analogue) ms, ≤5 (Discrete) ms
RS Stock No. 835-2832
Mfr. Part No.XMLR001G0T26
SGD468.01
Each
units
0 → 1bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid Analogue 24 V dc 0bar 1bar NPT 1/4 4 → 20 mA M12 Connector -20°C +80°C ≤0.1 % ≤10 ms
RS Stock No. 124-2134
Mfr. Part No.XMLP006GD11F
SGD155.98
Each
units
0 → 6bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 5 V dc 0bar 6bar G1/4 0.5 → 4.5 V M12 4-Pin Connector -30°C +85°C ±0.1 (Repeat) %, ±0.5 (Measurement) % ≤2 ms
RS Stock No. 835-2867
Mfr. Part No.XMLR250M2P05
SGD406.12
Each
units
0 → 250bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid 2x PNP-NO/NC 24 V dc 0bar 250bar G1/4 - M12 Connector -20°C +80°C ≤0.1 % ≤5 ms
RS Stock No. 835-2860
Mfr. Part No.XMLR250M1P25
SGD593.64
Each
units
0 → 250bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid 1 x PNP, Analogue 24 V dc 0bar 250bar G1/4 4 → 20 mA M12 Connector -20°C +80°C ≤0.1 % ≤10 (Analogue) ms, ≤5 (Discrete) ms
RS Stock No. 124-2141
Mfr. Part No.XMLP2D5GD71F
SGD155.98
Each
units
0 → 2.5bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 24 V dc 0bar 2.5bar G1/4 0 → 10 V M12 4-Pin Connector -30°C +85°C ±0.1 (Repeat) %, ±0.5 (Measurement) % ≤2 ms
RS Stock No. 124-2177
Mfr. Part No.XMPC06C2941S701
SGD100.88
Each
units
- Differential - 3 N/C - 1bar 6bar G1/4 - Screw Terminals -30°C +70°C ±0.5 % -
RS Stock No. 124-2170
Mfr. Part No.XMPA12B2131C
SGD50.34
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. 124-2133
Mfr. Part No.XMLP001GL71F
SGD189.06
Each
units
0 → 1bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 24 V dc 0bar 1bar G1/4 0 → 10 V Cable -30°C +85°C ±0.1 (Repeat) %, ±0.5 (Measurement) % ≤2 ms
RS Stock No. 835-2851
Mfr. Part No.XMLR250M1N25
SGD607.22
Each
units
0 → 250bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid 1 x NPN, Analogue 24 V dc 0bar 250bar G1/4 4 → 20 mA M12 Connector -20°C +80°C ≤0.1 % ≤10 (Analogue) ms, ≤5 (Discrete) ms