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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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. 452-8883
Mfr. Part No.401001/000-459-405-502-20-601-61/000
BrandJumo
SGD261.09
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. 518-4456
BrandRS PRO
SGD152.92
Each
units
0 → 16bar Relative Gas, Liquid Analogue 10 → 30 V dc 0bar 16bar G1/4 4 → 20 mA M12 Connector +20°C +125°C ≤0.5 % ≤3 ms
RS Stock No. 124-2177
Mfr. Part No.XMPC06C2941S701
SGD85.83
Each
units
- Differential - 3 N/C - 1bar 6bar G1/4 - Screw Terminals -30°C +70°C ±0.5 % -
RS Stock No. 779-4285
Mfr. Part No.PS71-40-4MGS-C-HC
SGD128.69
Each
units
250 → 1000psi - Air, Hydraulic SPDT 125/250 V 250psi 1000psi BSP 1/4 - Screw Terminals -9°C +85°C - -
RS Stock No. 779-4266
Mfr. Part No.PS71-50-4MGZ-C-HC
SGD84.83
Each
units
1000 → 3000psi - Air, Hydraulic SPDT 125/250 V 1000psi 30000psi NPT 1/4 - Screw Terminals -9°C +85°C - -
RS Stock No. 820-7035
Mfr. Part No.6742-0052
BrandHerga
SGD79.64
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. 779-4276
Mfr. Part No.PS71-30-4MGS-C-HC
SGD128.69
Each
units
65 → 300psi - Air, Hydraulic SPDT 125/250 V 65psi 300psi BSP 1/4 - Screw Terminals -9°C +85°C - -
RS Stock No. 123-6132
Mfr. Part No.251860
SGD81.22
Each
units
0.7 → 4.1bar - Gas, Liquid SPST-NC - 0.7bar 4.1bar BSP 1/4 - 1/4 x 1/32 Spade Terminal -40°C +121°C ±0.1 bar -
RS Stock No. 124-2130
Mfr. Part No.XMLA070D2C11
SGD286.40
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. 779-4232
Mfr. Part No.PS61-40-4MGZ-B-SP
SGD39.54
Each
units
150 → 500psi - Hydraulic SPST-NC 42 V dc 150psi 500psi BSP 1/4 - Spade Terminal -9°C +110°C - -
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. 124-2141
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. 779-4282
Mfr. Part No.PS71-60-4MGS-C-HC
SGD125.36
Each
units
2500 → 5000psi - Air, Hydraulic SPDT 125/250 V 2500psi 5000psi BSP 1/4 - Screw Terminals -9°C +85°C - -
RS Stock No. 779-4250
Mfr. Part No.212344-RS
SGD84.83
Each
units
25 → 75psi - Air, Hydraulic SPDT 125/250 V 25psi 75psi NPT 1/4 - Screw Terminals -9°C +85°C - -
RS Stock No. 835-2851
Mfr. Part No.XMLR250M1N25
SGD550.24
Each
units
0 → 250bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid Analogue, 1 x NPN 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. 146-2938
Mfr. Part No.XMLPM00GC7BF
SGD198.81
Each
units
-1 → 0bar Differential Air, Fresh Water, Gas, Hydraulic Oil Analogue 24 V dc -1bar 0bar - 0 → 10 V 3-Pin DIN 43650 Male Connector -30°C +85°C 0.1 % ≤2 ms
RS Stock No. 146-2939
Mfr. Part No.XMLPM00GD71F
SGD183.11
Each
units
-1 → 0bar Differential Air, Fresh Water, Gas, Hydraulic Oil Analogue 24 V dc -1bar 0bar - 0 → 10 V 4-Pin M12 Male Connector -30°C +85°C 0.1 % ≤2 ms
RS Stock No. 176-7921
Mfr. Part No.XMLP3K0PP230
SGD257.24
Each
units
0 → 3000psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc 0psi 3000psi - 4 → 20 mA 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 135-3754
Mfr. Part No.XMLG010D71
SGD297.62
Each
units
0 → 10bar - Air, Corrosive Fluid, Fresh Water, Hydraulic Oil, Sea Water Analogue 24 V dc 0bar 10bar - 0 → 10 V M12 3-Pin Connector -15°C +85°C ±0.1 % 2 ms
RS Stock No. 176-7864
Mfr. Part No.XMLP025BC11F
SGD177.96
Each
units
0 → 25bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0bar 25bar - 0.5 → 4.5 V EN 175301-803-A 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
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