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Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)

Model: 1950-20-2F

Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)

Model: 1950-20-2F

Combines the best features of the popular Dwyer® Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres NEMA 7 & 9.

Combines the best features of the popular Dwyer® Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres NEMA 7 & 9.

Sale Price $170.19 USD
Regular Price $186.00 USD
Availability 9 in Stock
Quantity

Dwyer 1950-20-2F Explosion-proof Differential Pressure Switch, range 4-20

Differential pressure switch, range 4-20" w.c., approx. deadband @ min. set point 0.40, approx. deadband @ max. set point 0.60.

Model 1950 Explosion-proof Differential Pressure Switch combines the best Features of the popular Dwyer® Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres NEMA 7 & 9. Raintight NEMA 3 (IP54). Weatherproof Features include a drain plug and O-ring seal in cover. Electrical connections are easily made by removing front cover. For convenience the set point adjustment screw is located on the outside of the housing. Twelve models offer set points from .03 to 20" w.c. (7.5 to 5 kPa) and from .5 to 60 psi (0.035 to 3.5 bar). The unit is very light and compact - about half the weight and bulk of other explosion-proof or weatherproof switches with separate enclosures.

CAUTION: For use only with air or compatible gases. Applications with hazardous atmospheres and a single positive pressure may require special venting

Dwyer 1950-20-2F Specifications

Service Air and Non-Combustible, Compatible Gases
Temperature Limits -40 to 140°F (-40 to 60°C)
0 to 140°F (-17.8 to 60°C) for 1950P-8, 15, 25, and 50
-30 to 130°F (-34.4 to 54.4°C) for 1950-02
Pressure Limits Continuous: 1950's - 45 in w.c. (0.11 bar); 1950P's - 35 psi (2.41 bar); 1950P-50 only - 70 psi (4.83 bar)
Surge: 1950's - 10 psi (0.69 bar), 1950P's - 50 psi (3.45 bar), 1950P-50 only - 90 psi (6.21 bar)
Enclosure Rating NEMA 3 (IP54), NEMA 7 & 9
Switch Type Single-Pole Double-Throw (SPDT)
Electrical Rating 15 A @, 125, 250, 480 VAC, 60 Hz
Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz
Electrical Connections 3 Screw Types: Common, Normally Open and Normally Closed
Process Connections 1/8" Female NPT
Mounting Orientation Diaphragm in Vertical Position
Set Point Adjustment Screw Type On Top of Housing
Weight 3.25 Ib (1.5 kg)
1950-02 Model: 4.4 lb (2 kg)
Agency Approvals CE, CSA, FM, UL
Click here for complete specifications on the Dwyer 1950-20-2F

What's included with the Dwyer 1950-20-2F

  • Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)
  • Click on a category to view a selection of compatible accessories with the Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.).

    Dwyer A-602 Air Filter Kit A-602
    Kit Includes two static pressure tips with integral compression fittings, two five-foot lengths of 1/4" aluminum tubing and two 1/8" NPT to 1/4" tubing compression fittings. Must buy gauge separately.




    Customer Reviews for the Dwyer 1950-20-2F

    Ask a question about Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)

    Dwyer 1950-20-2F Explosion-proof Differential Pressure Switch, range 4-20

    Differential pressure switch, range 4-20" w.c., approx. deadband @ min. set point 0.40, approx. deadband @ max. set point 0.60.

    Model 1950 Explosion-proof Differential Pressure Switch combines the best Features of the popular Dwyer® Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres NEMA 7 & 9. Raintight NEMA 3 (IP54). Weatherproof Features include a drain plug and O-ring seal in cover. Electrical connections are easily made by removing front cover. For convenience the set point adjustment screw is located on the outside of the housing. Twelve models offer set points from .03 to 20" w.c. (7.5 to 5 kPa) and from .5 to 60 psi (0.035 to 3.5 bar). The unit is very light and compact - about half the weight and bulk of other explosion-proof or weatherproof switches with separate enclosures.

    CAUTION: For use only with air or compatible gases. Applications with hazardous atmospheres and a single positive pressure may require special venting

    Dwyer 1950-20-2F Specifications

    Service Air and Non-Combustible, Compatible Gases
    Temperature Limits -40 to 140°F (-40 to 60°C)
    0 to 140°F (-17.8 to 60°C) for 1950P-8, 15, 25, and 50
    -30 to 130°F (-34.4 to 54.4°C) for 1950-02
    Pressure Limits Continuous: 1950's - 45 in w.c. (0.11 bar); 1950P's - 35 psi (2.41 bar); 1950P-50 only - 70 psi (4.83 bar)
    Surge: 1950's - 10 psi (0.69 bar), 1950P's - 50 psi (3.45 bar), 1950P-50 only - 90 psi (6.21 bar)
    Enclosure Rating NEMA 3 (IP54), NEMA 7 & 9
    Switch Type Single-Pole Double-Throw (SPDT)
    Electrical Rating 15 A @, 125, 250, 480 VAC, 60 Hz
    Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz
    Electrical Connections 3 Screw Types: Common, Normally Open and Normally Closed
    Process Connections 1/8" Female NPT
    Mounting Orientation Diaphragm in Vertical Position
    Set Point Adjustment Screw Type On Top of Housing
    Weight 3.25 Ib (1.5 kg)
    1950-02 Model: 4.4 lb (2 kg)
    Agency Approvals CE, CSA, FM, UL
    Click here for complete specifications on the Dwyer 1950-20-2F

    What's included with the Dwyer 1950-20-2F

  • Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)
  • Click on a category to view a selection of compatible accessories with the Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.).

    Dwyer A-602 Air Filter Kit A-602
    Kit Includes two static pressure tips with integral compression fittings, two five-foot lengths of 1/4" aluminum tubing and two 1/8" NPT to 1/4" tubing compression fittings. Must buy gauge separately.




    Ask a question about Dwyer 1950-20-2F Explosion-Proof Differential Pressure Switch (4.0-20" w.c.)

    Customer Reviews for the Dwyer 1950-20-2F

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