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See Differential Pressure
Differential Pressure Mechanical Pressure Switch

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price

€0-€49.99 (2)
€50-€199.99 (3)
€200-€499.99 (2)
€500-€999.99 (4)
€1,000-€9,999.99 (1)

Measurement Pressure, Max

0.5 inH₂O (6)
0.15 inH₂O (2)
0.22 inH₂O (1)
1 inH₂O (3)
1 kPa (1)
1.2 inH₂O (1)

0.5 inH₂O (6)
0.15 inH₂O (2)
0.22 inH₂O (1)
1 inH₂O (3)
1 kPa (1)
1.2 inH₂O (1)
1.6 inH₂O (4)
2 inH₂O (4)
2 psi (1)
3 inH₂O (2)
3 kPa (2)
4 inH₂O (1)
4 kPa (1)
5 inH₂O (3)
5.5 inH₂O (3)
6 mmHg (1)
6 psi (1)
8 psi (1)
10 inH₂O (4)
10 mmHg (1)
10 psi (1)
11 inH₂O (2)
12.0 inH₂O (1)
15 inH₂O (1)
15 psi (1)
20 cmH2O (1)
20 inH₂O (5)
22 inH₂O (1)
25 mmHg (1)
25 psi (2)
30 inH₂O (1)
44 inH₂O (1)
45 psi (1)
50 inH₂O (1)
50 mmHg (2)
50 psi (1)
60 Pa (1)
70 psi (1)
85 inH₂O (1)
100 inH₂O (1)
100 mmHg (2)
125 Pa (2)
250 Pa (2)
500 Pa (2)

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Measurement Pressure, Min

0 psi (1)
0.0 inH₂O (2)
0.1 inH₂O (1)
0.2 inH₂O (1)
0.3 inH₂O (1)
0.4 inH₂O (4)

0 psi (1)
0.0 inH₂O (2)
0.1 inH₂O (1)
0.2 inH₂O (1)
0.3 inH₂O (1)
0.4 inH₂O (4)
0.05 inH₂O (1)
0.5 inH₂O (1)
0.5 psi (1)
0.07 inH₂O (3)
0.08 inH₂O (1)
0.8 inH₂O (1)
0.12 inH₂O (1)
0.15 inH₂O (3)
1 psi (1)
1.4 inH₂O (3)
1.5 inH₂O (1)
1.5 psi (1)
2.0 inH₂O (2)
3.0 inH₂O (3)
3.0 psi (1)
4 psi (1)
4.0 inH₂O (3)
4.0 psi (1)
5.0 inH₂O (1)
9.0 inH₂O (1)
15.0 psi (1)

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brand

ACI (1)
Dwyer (8)
Omega (2)

configurable

Media Compatibility

Air (7)
Argon (7)
Butane (1)
Carbon dioxide (7)
Combustible Gases (1)
Consult Factory (1)

Air (7)
Argon (7)
Butane (1)
Carbon dioxide (7)
Combustible Gases (1)
Consult Factory (1)
Helium (7)
Hydrogen (1)
Methane (1)
Nitrogen (7)
Non-Corrosive Dry Gases (7)
Propane (1)

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Operating Temperature, Max

70.0 °C (2)
120.0 °F (2)
140.0 °F (2)
150.0 °F (1)
180.0 °F (3)
185.0 °F (1)

Materials

316 Stainless Steel (1)
Aluminum (1)
Brass (2)
Bronze (1)
Neoprene (1)
Polycarbonate (1)

316 Stainless Steel (1)
Aluminum (1)
Brass (2)
Bronze (1)
Neoprene (1)
Polycarbonate (1)
Polyester (1)
Polysulfone (1)
PTFE (1)
Stainless Steel (1)

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Switch Type

(2) SPDT (1)
Selectable (8)
SPDT NO/NC (8)
SPDT with Manual Reset (1)
SPST (1)
SSR (1)

Applications

Environmental Monitoring (1)
Filter Monitoring (1)
Flow Measurement (1)
Fluid Measurement and Control (2)
HVAC (2)
Industrial and Manufacturing (1)

Environmental Monitoring (1)
Filter Monitoring (1)
Flow Measurement (1)
Fluid Measurement and Control (2)
HVAC (2)
Industrial and Manufacturing (1)
Medical (1)
Process Automation and Control (1)
Pump Control (1)
Refrigeration (1)
Refrigeration Equipment (1)

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Deadband

0 to 0.75 psi (1)
0 to 1 psi (1)
0.1 inH2O (1)
0.1 to 0.4 psi (1)
0.1 to 0.12 inH2O (1)
0.3 inH2O (1)

0 to 0.75 psi (1)
0 to 1 psi (1)
0.1 inH2O (1)
0.1 to 0.4 psi (1)
0.1 to 0.12 inH2O (1)
0.3 inH2O (1)
0.3 psi (1)
0.3 to 0.4 inH2O (1)
0.4 inH2O (1)
0.04 inH2O (1)
0.4 to 0.5 inH2O (2)
0.04 to 0.05 inH2O (1)
0.04 to 0.06 inH2O (1)
0.4 to 0.9 inH2O (1)
0.05 inH2O (1)
0.06 inH2O (1)
0.6 to 0.8 inH2O (1)
0.06 to 0.09 inH2O (1)
0.06 to 0.11 inH2O (1)
0.7 psi (1)
0.08 inH2O (1)
0.08 to 0.09 inH2O (1)
0.9 psi (1)
0.9 to 1.8 inH2O (1)
0.11 to 0.29 inH2O (1)
0.14 to 0.28 inH2O (1)
0.15 to 0.2 inH2O (1)
0.15 to 0.16 inH2O (1)
0.18 to 0.45 inH2O (1)
0.35 to 0.7 inH2O (1)
0.56 to 1.1 inH2O (1)
1 psi (1)
1 to 1.4 inH2O (1)
1 to 1.5 psi (1)
1.2 to 3 inH2O (1)
1.3 to 3 inH2O (1)

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Division

0 (1)
0.1 inH2O (1)
0.01 inH2O (1)
0.1 kPa (1)
0.2 inH2O (1)
0.02 inH2O (1)

0 (1)
0.1 inH2O (1)
0.01 inH2O (1)
0.1 kPa (1)
0.2 inH2O (1)
0.02 inH2O (1)
0.02 kPa (1)
0.2 mmH2O (1)
0.5 cmH2O (1)
0.05 inH2O (1)
0.5 inH2O (1)
0.5 mmH2O (1)
1 inH2O (1)
1 mmH2O (1)
2 inH2O (1)
2 mmH2O (1)
2 Pa (1)
5 Pa (1)
10 Pa (1)

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compliance

CE (9)
RoHS3 (10)

Proof Pressure

-20 inHg to 25 psi (1)
Up to 4 psi (1)
Up to 6 psi (1)
Up to 10 psi (1)
Up to 25 psi (1)
Up to 30 psi (1)

-20 inHg to 25 psi (1)
Up to 4 psi (1)
Up to 6 psi (1)
Up to 10 psi (1)
Up to 25 psi (1)
Up to 30 psi (1)
Up to 40 inH2O (1)
Up to 45 inH2O (3)
Up to 70 psi (1)
Up to 150 psi (1)

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Electrical Connection

1/2 in NPT female Conduit with Screw Terminal block (1)
7/8 in knockout with Screw Terminal block (1)
Cable (1)
M20 Female Conduit with Strain Releif and Screw Terminal block (1)
Screw Terminal (8)

Process Connection Type

Barbed Fitting (2)
Ferrule and Nut (1)
NPT Female (7)
Stem (1)

Operating Temperature, Min

0.0 °C (1)
0.0 °F (1)
20.0 °F (2)
40.0 °F (1)
-4.0 °F (1)
-30.0 °F (2)

0.0 °C (1)
0.0 °F (1)
20.0 °F (2)
40.0 °F (1)
-4.0 °F (1)
-30.0 °F (2)
-40.0 °C (1)
-40.0 °F (2)

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Process Connection Size

1/4 in (3)
1/8 in (5)
3/16 in (1)
5/16 in (1)
5/32 in (1)

Materials, Wetted

Consult Factory (6)
Nylon 6.6 (1)
POM (1)
Silicone (1)

Switch Rating

1 A @ 30 Vdc, 0.3 A @ 110 Vdc / 0.5 A @ 125 Vac (1)
1.5 A/0.4 A @ 250 Vac (1)
5 A @ 120/240 Vac, 5 A @ 30 Vdc (1)
10 A @ 120/240 Vac/28 Vdc; 50 mA @ 125 Vdc (1)
15 A @ 120-480 Vac, 1/8 HP @ 125 Vac, 1/4 HP @ 250 Vac (2)
20 to 280 Vac, 0.01 mA to 1 A (1)

1 A @ 30 Vdc, 0.3 A @ 110 Vdc / 0.5 A @ 125 Vac (1)
1.5 A/0.4 A @ 250 Vac (1)
5 A @ 120/240 Vac, 5 A @ 30 Vdc (1)
10 A @ 120/240 Vac/28 Vdc; 50 mA @ 125 Vdc (1)
15 A @ 120-480 Vac, 1/8 HP @ 125 Vac, 1/4 HP @ 250 Vac (2)
20 to 280 Vac, 0.01 mA to 1 A (1)
40 mA (1)
Mica silver (STD) and phenolic silver: 15A @ 125, 250, 480 Vac, 1/8 HP @ 125 Vac, 1/4 HP @ 250 Vac; Phenolic gold: 1A @ 125 Vac (1)

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Mounting Orientation

Panel Mount (1)
Vertical (2)
Vertical Diaphragm (5)
Vertical with Downward Pressure Ports (1)

Enclosure Ratings

IP54 (2)
IP65 (1)
NEMA Type 3 (1)
NEMA Type 4 (1)
NEMA Type 7 (1)
NEMA Type 9 (1)

IP54 (2)
IP65 (1)
NEMA Type 3 (1)
NEMA Type 4 (1)
NEMA Type 7 (1)
NEMA Type 9 (1)
NEMA Type 13 (1)

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Control Output

SPDT Relay (2)
SPDT w/ Automatic Reset (1)
SPST-NC w/ Manual Reset (1)

Differential Pressure Mechanical Pressure Switch

Grid Table

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11 Products

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Series-1950G

Explosion-Proof Differential Pressure Switch, Weatherproof, UL Listed, 24 V

The Dwyer® Series 1950G Explosion-Proof Differential Pressure Switch is weatherproof and UL listed, designed for natural gas and outdoor use, ensuring safety and reliability.

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Series-3000MR-3000MRS

Photohelic® Switch/Gages, Differential Pressure, 25 psig Max, Compact

The Photohelic® Switch/Gages offer precise differential pressure monitoring with easy-to-read analog displays. Compact and durable, they are suitable for various applications.

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Series-1900

Compact Low Differential Pressure Switch, 0.07-20 inH2O, UL/CE/CSA/FM

Compact Low Differential Pressure Switches

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Series-MP

Mini-Photohelic Differential Pressure Switch/Gage for Non-Corrosive Gases

The Mini-Photohelic Differential Pressure Switch/Gage measures non-corrosive gas pressures with dual switch points and LED indicators, perfect for fume hoods and clean rooms.

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Series-MDA

Mini Adjustable Pressure Switch, Gold Contacts, HVAC, Industrial, Medical

Miniature Adjustable Pressure Switch applies to industrial, HVAC, medical and automotive applications. Gold inlay contacts. Small and lightweight.

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Series-1800

Compact Low Differential Pressure Switch, 2% Repeatability, UL/CSA/FM Approved

Compact Low Differential Pressure Switches

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Series-ADPS-EDPS

Adjustable Differential Pressure Switch – 0.08 to 20 inH2O (20 to 5000 Pa)

The Adjustable Differential Pressure Switch monitors pressure and vacuum with an easy-to-use knob. Ideal for HVAC applications, it features a compact design and durable materials.

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PSW-180

Industrial Differential Pressure Switch or Alarm

The PSW-180 series are compact, differential 5 A SPDT switches with the option of a relay or alarm output. They have NEMA-4X housings to withstand harsh environments.

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Series-1950

Explosion-Proof Differential Pressure Switch, Weatherproof, 0.03-20 inH2O

The Series 1950 Explosion-Proof Differential Pressure Switch features a durable weatherproof housing, external set point adjustment, and is ideal for HVAC and process applications.

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PSW-150

General Purpose Industrial Differential Pressure Switch

The PSW-150 series are differential 15 A DPDT switches with a fixed deadband and UL listing for general purpose applications.

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AFS

Differential Pressure Switches (Metal)

Differential Pressure Switches (Metal) monitor filter blockage and flow levels, providing reliable alarms and control for safe operation.

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Differential Pressure Mechanical Pressure Switch

Differential pressure mechanical pressure switches monitor pressure differences between two points, activating equipment at preset thresholds. Reliable and durable for system control.