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. 835-2851
Mfr. Part No.XMLR250M1N25
HK$3,656.58
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. 835-2867
Mfr. Part No.XMLR250M2P05
HK$2,631.62
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. 135-3785
Mfr. Part No.XMPE12C2431
HK$714.02
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. 135-3786
Mfr. Part No.XMPR12C2433
HK$386.24
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. 176-7891
Mfr. Part No.XMLP100PD130
HK$1,464.57
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. 176-7892
Mfr. Part No.XMLP100PP130
HK$1,464.57
Each
units
0 → 100psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0psi 100psi - 0.5 → 4.5 V 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 176-7939
Mfr. Part No.XMLPM09BD290
HK$1,497.89
Each
units
-1 → 9bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc -1bar 9bar 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. 124-2176
Mfr. Part No.XMPC06C2374
HK$465.54
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 G1/2 - Screw Clamp -25°C +70°C <3.5 (Repeat) % -
RS Stock No. 176-7854
Mfr. Part No.XMLP010BD290
HK$1,077.73
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. 176-7867
Mfr. Part No.XMLP025BD11F
HK$1,013.16
Each
units
0 → 25bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0bar 25bar - 0.5 → 4.5 V 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 135-3788
Mfr. Part No.XMXA06L2135
HK$654.44
Each
units
1 → 6bar - Air, Fresh Water, Sea Water 1 C/O 240 V ac, 250 V dc 1bar 6bar - - Screw Clamp -25°C +70°C 3.5 % -
RS Stock No. 176-7893
Mfr. Part No.XMLP100PP230
HK$1,464.57
Each
units
0 → 100psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc 0psi 100psi - 4 → 20 mA 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 176-7902
Mfr. Part No.XMLP1K0PD130
HK$1,464.57
Each
units
0 → 1000psi - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0psi 1000psi - 0.5 → 4.5 V 4 Pin M12 Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 162-2075
Mfr. Part No.XMLP010BC21F
HK$1,013.76
Each
units
0 → 10bar Differential Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc 0bar 10bar - 4 → 20 mA 3-Pin Male Connector -30°C +85°C ±0.5 % 2 ms
RS Stock No. 176-7900
Mfr. Part No.XMLP160BC21F
HK$1,033.43
Each
units
0 → 160bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc 0bar 160bar - 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. 176-7921
Mfr. Part No.XMLP3K0PP230
HK$1,464.57
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. 176-7936
Mfr. Part No.XMLP6K0PP730
HK$1,464.57
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. 176-7847
Mfr. Part No.XMLP010BC11F
HK$1,013.16
Each
units
0 → 10bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0bar 10bar - 0.5 → 4.5 V EN 175301-803-A 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS Stock No. 135-3742
Mfr. Part No.XMLB160D2C11
HK$2,136.78
Each
units
10 → 160bar - Air, Hydraulic Oil 1 C/O 240 V ac, 250 V dc 10bar 160bar - - DIN 43650A 4-Pin Male Connector -13°C +158°C <2 % -
RS Stock No. 135-3749
Mfr. Part No.XMLG001D23
HK$2,240.67
Each
units
0 → 1bar - Air, Corrosive Fluid, Fresh Water, Hydraulic Oil, Sea Water Analogue 12 V dc, 24 V dc 0bar 1bar - 4 → 20 mA M12 3-Pin Connector -15°C +85°C ±0.1 % 2 ms