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. 177-8863
Mfr. Part No.XMLP2D5GD21F
SGD194.44
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. 135-3778
Mfr. Part No.XMLRM01G1P25
SGD597.16
Each
units
-1 → 0bar - Air, Fresh Water, Hydraulic Oil, Refrigeration Fluid Analogue, Solid State PNP 24 V dc -1bar 0bar - 4 → 20 mA M12 4/5-Pin Connector -20°C +80°C ±1 % 10 ms
RS Stock No. 176-7896
Mfr. Part No.XMLP150PP230
SGD248.48
Each
units
0 150psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc 0psi 150psi - 4 20 mA 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 176-7854
Mfr. Part No.XMLP010BD290
SGD189.29
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. 135-3762
Mfr. Part No.XMLK006B2D21
SGD186.36
Each
units
0 → 6bar - Air, Fresh Water Analogue 24 V dc 0bar 6bar - 4 → 20 mA M12 3-Pin Connector 0°C +80°C ±0.3 % 2 ms
RS Stock No. 177-8885
Mfr. Part No.XMLP001GL21F
SGD203.24
Each
units
0 → 1bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 12 → 24 V dc 0bar 1bar - 4 → 20 mA 2 m Cable -30°C +85°C ±0.5 % <=2 ms
RS Stock No. 176-7848
Mfr. Part No.XMLP010BC270
SGD185.58
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 EN 175301-803-A 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 779-4272
Mfr. Part No.215419-RS
SGD177.14
Each
units
25 → 75psi - Air, Hydraulic SPDT 125/250 V 25psi 75psi BSP 1/4 - Screw Terminals -9°C +85°C - -
RS Stock No. 162-2093
Mfr. Part No.XMLPM09BD21F
SGD263.09
Each
units
-1 9bar Differential Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc -1bar 9bar - 4 20 mA 4-Pin Male Connector -30°C +85°C ±0.5 % 2 ms
RS Stock No. 135-3775
Mfr. Part No.XMLR010G1P75
SGD626.37
Each
units
0 → 10bar - Air, Fresh Water, Hydraulic Oil, Refrigeration Fluid Analogue, Solid State PNP 24 V dc 0bar 10bar - 1 → 10 V M12 4/5-Pin Connector -20°C +80°C ±1 % 10 ms
RS Stock No. 135-3785
Mfr. Part No.XMPE12C2431
SGD128.69
Each
units
1.3 → 12bar - Air, Fresh Water, Sea Water 3PST-NC 230 V ac, 400 V ac 1.3bar 12bar - - Screw Clamp -25°C +70°C 3.5 % -
RS Stock No. 176-7938
Mfr. Part No.XMLPM09BD11F
SGD258.50
Each
units
-1 → 9bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc -1bar 9bar - 0.5 → 4.5 V 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 135-3746
Mfr. Part No.XMLC010B2S11
SGD655.60
Each
units
0 → 10bar - Air, Fresh Water, Hydraulic Oil, Sea Water 2 C/O 240 V ac, 250 V dc 0bar 10bar - - PG 13.5 -13°C +158°C 2 % -
RS Stock No. 176-7891
Mfr. Part No.XMLP100PD130
SGD257.24
Each
units
0 → 100psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0psi 100psi - 0.5 → 4.5 V 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 146-2936
Mfr. Part No.XMLP500MD71F
SGD190.51
Each
units
0 → 0.5bar Differential Air, Fresh Water, Gas, Hydraulic Oil Analogue 24 V dc 0bar 0.5bar - 0 → 10 V 4-Pin M12 Male Connector -30°C +85°C 0.1 % ≤2 ms
RS Stock No. 177-8875
Mfr. Part No.XMLP2D5GL21F
SGD194.38
Each
units
0 → 2.5bar - Air, Fresh Water, Gas, Hydraulic Oil Analogue 12 → 24 V dc 0bar 2.5bar - 4 → 20 mA 2 m Cable -30°C +85°C ±0.5 % <=2 ms
RS Stock No. 176-7931
Mfr. Part No.XMLP600PP730
SGD244.48
Each
units
0 → 600psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 24 V dc 0psi 600psi - 0 → 10 V 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 739-6724
Mfr. Part No.PK7521
SGD276.31
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. 162-2078
Mfr. Part No.XMLP016BC21F
SGD186.36
Each
units
0 16bar Differential Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc 0bar 16bar - 4 20 mA 3-Pin Male Connector -30°C +85°C ±0.5 % 2 ms
RS Stock No. 176-7863
Mfr. Part No.XMLP016BD290
SGD185.58
Each
units
0 16bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 24 V dc 0bar 16bar 7/16 - 20 UNF SAE 4 20 mA 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
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