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.
Pressure Switches
334
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.
124-2171
Mfr. Part No.XMPA12B2142
|
$80.29
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.
779-4204
Mfr. Part No.PS61-20-4MGZ-A-SP
BrandGems Sensors
|
$69.27
Each
units
|
40 → 150psi | - | Hydraulic | SPST-NO | 42 V dc | 40psi | 150psi | BSP 1/4 | - | Spade Terminal | -9°C | +110°C | - | - |
|
RS Stock No.
124-2170
Mfr. Part No.XMPA12B2131C
|
$65.57
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) % | - |
|
Gems Sensors Air, Hydraulic Pressure Switch, SPDT 65 → 300psi, 125/250 V, BSP 1/4 process connection
RS Stock No.
779-4254
Mfr. Part No.PS71-30-4MGZ-C-HC
BrandGems Sensors
|
$164.06
Each
units
|
65 → 300psi | - | Air, Hydraulic | SPDT | 125/250 V | 65psi | 300psi | BSP 1/4 | - | Screw Terminals | -9°C | +85°C | - | - |
|
RS Stock No.
748-4720
Mfr. Part No.ZSE40AF-01-T
BrandSMC
|
$304.71
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.
124-2174
Mfr. Part No.XMPA12C2142
|
$161.26
Each
units
|
- | Differential | - | 3 N/C | - | 1.3bar | 12bar | G1/4 | - | Screw Terminals | -30°C | +100°C | ±0.5 % | - |
|
RS Stock No.
124-2125
Mfr. Part No.9013FSG2J20
BrandSquare D
|
$56.06
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.
124-2163
Mfr. Part No.XMPA06B2131
|
$56.91
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.
779-4200
Mfr. Part No.PS61-10-4MGZ-A-SP
BrandGems Sensors
|
$69.27
Each
units
|
15 → 60psi | - | Hydraulic | SPST-NO | 42 V dc | 15psi | 60psi | BSP 1/4 | - | Spade Terminal | -9°C | +110°C | - | - |
|
RS Stock No.
779-4272
Mfr. Part No.215419-RS
BrandGems Sensors
|
$211.92
Each
units
|
25 → 75psi | - | Air, Hydraulic | SPDT | 125/250 V | 25psi | 75psi | BSP 1/4 | - | Screw Terminals | -9°C | +85°C | - | - |
|
RS Stock No.
752-2431
Mfr. Part No.9012GBW1
BrandSquare D
|
$689.01
Each
units
|
16 → 90psi | Differential | Gas, Liquid Level | - | 600 V | 16psi | 90psi | NPT 1/4 | - | 12" NPT | -40°C | +120°C | ±0.1 → 1 % | - |
|
RS Stock No.
779-4235
Mfr. Part No.PS61-20-4MGZ-B-SP
BrandGems Sensors
|
$69.27
Each
units
|
40 → 150psi | - | Hydraulic | SPST-NC | 42 V dc | 40psi | 150psi | BSP 1/4 | - | Spade Terminal | -9°C | +110°C | - | - |
|
RS Stock No.
748-4723
Mfr. Part No.ZSE40AF-01-R
BrandSMC
|
$304.71
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.
124-2172
Mfr. Part No.XMPA12B2144C243
|
$115.40
Each
units
|
- | Differential | - | 2 N/C | - | 1.3bar | 12bar | G1/4 | - | Screw Terminals | -30°C | +100°C | ±0.5 % | - |
|
RS Stock No.
779-4216
Mfr. Part No.PS61-40-4MGZ-A-SP
BrandGems Sensors
|
$66.85
Each
units
|
150 → 500psi | - | Hydraulic | SPST-NO | 42 V dc | 150psi | 500psi | BSP 1/4 | - | Spade Terminal | -9°C | +110°C | - | - |
|
RS Stock No.
752-2437
Mfr. Part No.9012GAW6
|
$919.28
Each
units
|
10 → 49psi | Differential | Gas, Liquid Level | - | 600 V | 10psi | 49psi | NPT 1/4 | - | 12" NPT | -40°C | +120°C | ±0.1 → 1 % | - |
|
RS Stock No.
123-6131
Mfr. Part No.251858
BrandGems Sensors
|
$107.08
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.
820-7035
Mfr. Part No.6742-0052
BrandHerga
|
$106.90
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.
779-4279
Mfr. Part No.217464-RS
BrandGems Sensors
|
$249.32
Each
units
|
10 → 30psi | - | Air, Hydraulic | SPDT | 125/250 V | 10psi | 300psi | BSP 1/4 | - | Screw Terminals | -9°C | +85°C | - | - |
|
RS Stock No.
124-2131
Mfr. Part No.XMLA160E2S11
|
$572.17
Each
units
|
4.5 → 142 (Falling) bar, 10 → 160 (Rising) bar | Differential | Fresh Water | 1CO | 240 V ac, 250 V dc | 4.5 (Falling) bar, 10 (Rising) bar | 142 (Falling) bar, 160 (Rising) bar | G1/4 | - | Screw Clamp | -25°C | +70°C | <2 (Repeat) % | - |
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