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 229 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. 124-2160
Mfr. Part No.XMLR400M1P25
TWD13,895.00
Each
units
20 → 388 (Falling) bar, 32 → 400 (Rising) bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid Analogue, PNP-NO/NC 24 V dc 20 (Falling) bar, 32 (Rising) bar 388 (Falling) bar, 400 (Rising) 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. 124-2121
Mfr. Part No.9012GAW6
TWD10,326.00
Each
units
5 → 250 (Decreasing) psi, 10 → 49 (Differential) psi Differential Air, Hydraulic Oil, Non-Corrosive Gas, Non-Corrosive Liquids SPDT-NO/NC 240 V ac, 250 V dc 5 (Decreasing) psi, 10 (Differential) psi 49 (Differential) psi, 250 (Decreasing) psi 0.25 in NPTF - 0.5 in NPT -10°F +185°F <4 (Repeat) % -
RS Stock No. 177-8863
Mfr. Part No.XMLP2D5GD21F
TWD4,150.00
Each
units
0 2.5bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 12 24 V dc 0bar 2.5bar - 4 20 mA 4 Pin Male Connector M12 -30°C +85°C ±0.5 % <=2 ms
RS Stock No. 135-3729
Mfr. Part No.XMLA010A2S13
TWD5,430.00
Each
units
0 → 10bar - Air, Fresh Water, Hydraulic Oil, Sea Water 1 C/O 240 V ac, 250 V dc 0bar 10bar - - 1/2 in 14 NPT -13°C +158°C 2 % -
RS Stock No. 124-2170
Mfr. Part No.XMPA12B2131C
TWD1,298.00
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. 162-2083
Mfr. Part No.XMLP100BC21F
TWD4,272.00
Each
units
0 100bar Differential Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc 0bar 100bar - 4 20 mA 3-Pin Male Connector -30°C +85°C ±0.5 % 2 ms
RS Stock No. 177-8880
Mfr. Part No.XMLP006GC21F
TWD4,341.00
Each
units
0 6bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 12 24 V dc 0bar 6bar - 4 20 mA 3 Pin Male Connector -30°C +85°C ±0.5 % <=2 ms
RS Stock No. 176-7860
Mfr. Part No.XMLP016BD190
TWD4,075.00
Each
units
0 → 16bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0bar 16bar 7/16 - 20 UNF SAE 0.5 → 4.5 V 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 124-2164
Mfr. Part No.XMPA06B2131C
TWD1,272.00
Each
units
0.2 → 4.8 (Falling) bar, 1 → 6 (Rising) bar Differential Air, Fresh Water, Sea Water 2NC - 0.2 (Falling) bar, 1 (Rising) bar 4.8 (Falling) bar, 6 (Rising) bar G1/4 - Screw Clamp -25°C +70°C <3.5 (Repeat) % -
RS Stock No. 124-2167
Mfr. Part No.XMPA06C2131C
TWD1,417.00
Each
units
0.2 → 4.8 (Falling) bar, 1 → 6 (Rising) bar Differential Air, Fresh Water, Sea Water 3NC - 0.2 (Falling) bar, 1 (Rising) bar 4.8 (Falling) bar, 6 (Rising) bar G1/4 - Screw Clamp -25°C +70°C <3.5 (Repeat) % -
RS Stock No. 177-8864
Mfr. Part No.XMLPM05GD21F
TWD4,161.00
Each
units
-1 5bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 12 24 V dc -1bar 5bar - 4 20 mA 4 Pin Male Connector M12 -30°C +85°C ±0.5 % <=2 ms
RS Stock No. 176-7941
Mfr. Part No.XMLPM25BD21F
TWD5,775.00
Each
units
-1 25bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc -1bar 25bar - 4 20 mA 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 162-2079
Mfr. Part No.XMLP016BD21F
TWD4,206.00
Each
units
0 16bar Differential Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc 0bar 16bar - 4 20 mA 4-Pin Male Connector -30°C +85°C ±0.5 % 2 ms
RS Stock No. 835-2845
Mfr. Part No.XMLR010G2P05
TWD12,298.00
Each
units
0 → 10bar Differential Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid 2x PNP-NO/NC 24 V dc 0bar 10bar G1/4 - M12 Connector -20°C +80°C ≤0.1 % ≤5 ms
RS Stock No. 176-7854
Mfr. Part No.XMLP010BD290
TWD4,156.00
Each
units
0 10bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc 0bar 10bar 7/16 - 20 UNF SAE 4 20 mA 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 176-7936
Mfr. Part No.XMLP6K0PP730
TWD5,647.00
Each
units
0 → 6000psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 24 V dc 0psi 6000psi - 0 → 10 V 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 135-3767
Mfr. Part No.XMLK150P2D23
TWD6,251.00
Each
units
0 → 150psi - Air, Fresh Water Analogue 24 V dc 0psi 150psi - 4 → 20 mA M12 3-Pin Connector 0°C +80°C ±0.3 % 2 ms
RS Stock No. 135-3730
Mfr. Part No.XMLA010C2S11
TWD8,875.00
Each
units
0 → 10bar - Corrosive Fluid 1 C/O 240 V ac, 250 V dc 0bar 10bar - - PG 13.5 -13°C +158°C 2 % -
RS Stock No. 124-2165
Mfr. Part No.XMPA06B2133NS1
TWD1,369.00
Each
units
- Differential - 2 N/C - 1bar 6bar G1/4 - Screw Terminals -30°C +100°C ±0.5 % -
RS Stock No. 146-2943
Mfr. Part No.XMLPM01GD71F
TWD4,113.00
Each
units
-1 → 1bar Differential Air, Fresh Water, Gas, Hydraulic Oil Analogue 24 V dc -1bar 1bar - 0 → 10 V 4-Pin M12 Male Connector -30°C +85°C 0.1 % ≤2 ms