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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Filters
| 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.
821-3689
Mfr. Part No.83282-00000100-05
BrandHoneywell
|
€30.40
Each
units
|
- | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
RS Stock No.
820-7035
Mfr. Part No.6742-0052
BrandHerga
|
€64.89
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.
124-2126
Mfr. Part No.9013FSG2J21
BrandSquare D
|
€34.03
Each
units
|
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi | Differential | Fresh Water | 2NC | - | 15 (Approximate) psi, 20 (Rising) psi | 30 (Approximate) psi, 65 (Rising) psi | 0.25 in NPSF | - | Screw Clamp | -33°F | +257°F | ±3 (Repeat) % | - |
|
RS Stock No.
124-2169
Mfr. Part No.XMPA06C2374N
|
€51.46
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.
124-2128
Mfr. Part No.9013FSG2J24
BrandSquare D
|
€34.37
Each
units
|
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi | Differential | Fresh Water | 2NC | - | 15 (Approximate) psi, 20 (Rising) psi | 30 (Approximate) psi, 65 (Rising) psi | 0.25 in NPSF | - | Screw Clamp | -33°F | +257°F | ±3 (Repeat) % | - |
|
RS Stock No.
124-2125
Mfr. Part No.9013FSG2J20
BrandSquare D
|
€33.65
Each
units
|
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi | Differential | Fresh Water | 2NC | - | 15 (Approximate) psi, 20 (Rising) psi | 30 (Approximate) psi, 65 (Rising) psi | 0.25 in NPSF | - | Screw Clamp | -33°F | +257°F | ±3 (Repeat) % | - |
|
RS Stock No.
124-2171
Mfr. Part No.XMPA12B2142
|
€43.64
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.
748-4723
Mfr. Part No.ZSE40AF-01-R
BrandSMC
|
€161.32
Each
units
|
-100 → 100kPa | Vacuum | Gas | Analogue | 12 → 24 V dc | -100kPa | 100kPa | BSP 1/8 | 1 → 5 V, 4 → 20 mA | Wire Lead | -5°C | +50°C | ±0.2 % | 2.5 ms |
|
RS Stock No.
123-6131
Mfr. Part No.251858
BrandGems Sensors
|
€63.20
Each
units
|
0.7 → 4.1bar | - | Gas, Liquid | SPST-NO | - | 0.7bar | 4.1bar | BSP 1/4 | - | 1/4 x 1/32 Spade Terminal | -40°C | +121°C | ±0.1 bar | - |
|
RS Stock No.
123-6135
Mfr. Part No.251234
BrandGems Sensors
|
€29.86
Each
units
|
55 → 135bar | - | Liquid | SPST-NO | - | 55bar | 135bar | BSP 1/4 | - | 1/4 x 1/32 Spade Terminal | -40°C | +121°C | ±3.3 bar | - |
|
RS Stock No.
779-4210
Mfr. Part No.PS61-50-4MGZ-A-SP
BrandGems Sensors
|
€31.20
Each
units
|
275 → 800psi | - | Hydraulic | SPST-NO | 42 V dc | 275psi | 800psi | BSP 1/4 | - | Spade Terminal | -9°C | +110°C | - | - |
|
RS Stock No.
124-2121
Mfr. Part No.9012GAW6
|
€294.40
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 PRO Gas, Liquid Gauge Pressure Switch, Analogue 0 → 2.5bar, 10 → 30 V dc, G1/4 process connection
RS Stock No.
518-4490
BrandRS PRO
|
€125.25
Each
units
|
0 → 2.5bar | Gauge | Gas, Liquid | Analogue | 10 → 30 V dc | 0bar | 2.5bar | G1/4 | 4 → 20 mA | M12 Connector | -20°C | +125°C | ≤0.5 % | ≤3 ms |
|
RS Stock No.
124-2170
Mfr. Part No.XMPA12B2131C
|
€34.02
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.
124-2130
Mfr. Part No.XMLA070D2C11
|
€184.15
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.
521-5342
BrandRS PRO
|
€125.25
Each
units
|
0 → 60bar | Gauge | Gas, Liquid | Analogue | 10 → 30 V dc | 0bar | 60bar | G1/4 | 4 → 20 mA | M12 Connector | -20°C | +125°C | ≤0.5 % | ≤3 ms |
|
RS Stock No.
835-2839
Mfr. Part No.XMLR010G1N25
|
€355.10
Each
units
|
0 → 10bar | Differential | Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid | Analogue, 1 x NPN | 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.
124-2127
Mfr. Part No.9013FSG2J21M4
BrandSquare D
|
€44.86
Each
units
|
15 → 30 (Approximate) psi, 20 → 65 (Rising) psi | Differential | Fresh Water | 2NC | - | 15 (Approximate) psi, 20 (Rising) psi | 30 (Approximate) psi, 65 (Rising) psi | 0.25 in NPSF | - | Screw Clamp | -33°F | +257°F | ±3 (Repeat) % | - |
|
RS Stock No.
123-6133
Mfr. Part No.251232
BrandGems Sensors
|
€29.86
Each
units
|
35 → 85bar | - | Liquid | SPST-NO | - | 35bar | 85bar | BSP 1/4 | - | 1/4 x 1/32 Spade Terminal | -40°C | +121°C | ±2.1 bar | - |
|
RS Stock No.
835-2867
Mfr. Part No.XMLR250M2P05
|
€300.88
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 |
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