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庫存編號 739-6724
製造零件編號PK7521
HK$1,477.37
單位
0 → 250bar Relative Gas, Liquid 2NO 9.6 → 32 V dc 0bar 250bar G1/4 - M12 Connector -25°C +80°C <±2.5 % -
RS庫存編號 518-4428
BrandRS PRO
HK$903.44
單位
0 → 6bar Gauge Gas, Liquid Analogue 10 → 30 V dc 0bar 6bar G1/4 4 → 20 mA M12 Connector -20°C +125°C ≤0.5 % ≤3 ms
RS庫存編號 820-7035
製造零件編號6742-0052
BrandHerga
HK$465.15
單位
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庫存編號 748-4723
製造零件編號ZSE40AF-01-R
BrandSMC
HK$1,341.92
單位
-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庫存編號 739-6715
製造零件編號PK7520
HK$1,426.82
單位
0 → 400bar Relative Gas, Liquid 2NO 9.6 → 32 V dc 0bar 400bar G1/4 - M12 Connector -25°C +80°C <±2.5 % -
RS庫存編號 779-4229
製造零件編號PS61-60-4MGZ-A-SP
HK$269.16
單位
400 → 1100psi - Hydraulic SPST-NO 42 V dc 400psi 1100psi BSP 1/4 - Spade Terminal -9°C +110°C - -
RS庫存編號 518-4434
BrandRS PRO
HK$1,069.43
單位
0 → 10bar Gauge Gas, Liquid Analogue 10 → 30 V dc 0bar 10bar G1/4 4 → 20 mA M12 Connector -20°C +125°C ≤0.5 % ≤3 ms
RS庫存編號 835-2851
製造零件編號XMLR250M1N25
HK$3,656.58
單位
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庫存編號 779-4200
製造零件編號PS61-10-4MGZ-A-SP
HK$227.92
單位
15 → 60psi - Hydraulic SPST-NO 42 V dc 15psi 60psi BSP 1/4 - Spade Terminal -9°C +110°C - -
RS庫存編號 821-3689
製造零件編號83282-00000100-05
BrandHoneywell
HK$266.74
單位
- - - - - - - - - - - - - -
RS庫存編號 518-4456
BrandRS PRO
HK$889.96
單位
0 → 16bar Relative Gas, Liquid Analogue 10 → 30 V dc 0bar 16bar G1/4 4 → 20 mA M12 Connector +20°C +125°C ≤0.5 % ≤3 ms
RS庫存編號 835-2867
製造零件編號XMLR250M2P05
HK$2,631.62
單位
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庫存編號 748-4717
製造零件編號ISE40A-01-R
BrandSMC
HK$1,010.62
單位
-0.1 → 1MPa Vacuum Gas Analogue 12 → 24 V dc -0.1MPa 1MPa BSP 1/8 1 → 5 V, 4 → 20 mA Wire Lead -5°C +50°C ±0.2 % 2.5 ms
RS庫存編號 176-7871
製造零件編號XMLP040BC11F
HK$1,013.16
單位
0 → 40bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 5 V dc 0bar 40bar - 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庫存編號 135-3741
製造零件編號XMLB010C2S11
HK$3,498.73
單位
0 → 10bar - Corrosive Fluid 1 C/O 240 V ac, 250 V dc 0bar 10bar - - PG 13.5 -13°C +158°C 2 % -
RS庫存編號 124-2169
製造零件編號XMPA06C2374N
HK$450.09
單位
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庫存編號 162-2094
製造零件編號XMLPM09BD71F
HK$1,468.56
單位
-1 → 9bar Differential Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc -1bar 9bar - 0 → 10 V 4-Pin Male Connector -30°C +85°C ±0.5 % 2 ms
RS庫存編號 135-3742
製造零件編號XMLB160D2C11
HK$2,136.78
單位
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庫存編號 176-7872
製造零件編號XMLP040BC21F
HK$1,033.43
單位
0 → 40bar - Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid Analogue 12 → 24 V dc 0bar 40bar - 4 → 20 mA EN 175301-803-A 3 Pin Male Connector -30°C +85°C ±0.5 (Measurement) %, 0.1 % 2 ms
RS庫存編號 123-6131
製造零件編號251858
HK$552.81
單位
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 -