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Explosion-proof Differential Pressure Switch

Differential pressure switch, range .15-.50" w.c., approx. deadband @ min. set point 0.10, approx. deadband @ max. set point 0.15.

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$321.00

Item# 1950-0-2F

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Explosion-proof and weatherproof housing provides device protection for outdoor use or harsh environment operation
External set point screw provides easy access that simplifies making adjustments without opening or disassembling enclosure
Easily accessible electrical connection simplifies the installation

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1950-0-2F Model Options

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Pressure Range

Pressure Type

Switch Type

Features

Pressure Port Size

Deadband

Pressure Port Type

Specs

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Weight 3.25 lb (1.5 kg)
Electrical Rating 15 A @ 125
Electrical Connections 3 screw type
Pressure Limits Continuous 1950's - 45" w.c. (0.11 bar)
Temperature Limits -40 to 140°F (-40 to 60°C)
Wetted Materials Consult factory.
Compliance CE
Enclosure Rating NEMA 3 (IP54)
Mounting Orientation Diaphragm in vertical position. Consult factory for other position orientations.
Process Connections 1/8" female NPT.
Service Air and non-combustible
Switch Type Single-pole double-throw (SPDT).
Set Point Adjustment Screw type on top of housing.
Compliance: CE
Electrical Connections: 3 screw type
Electrical Rating: 15 A @ 125
Enclosure Rating: NEMA 3 (IP54)
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Screw type on top of housing.
Switch Type: Single-pole double-throw (SPDT).
Temperature Limits: -40 to 140Â°F (-40 to 60Â°C)
Weight: 3.25 lb (1.5 kg)
Wetted Materials: Consult factory.
Pressure Limits: Continuous: 1950's - 45" w.c. (0.11 bar)
Process Connections: 1/8" female NPT.
Service: Air and non-combustible

Series 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 in w.c. (0.0075 to 5 kPa) and from .5 to 50 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 weather-proof 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.

Product Applications

HVAC applications
Process applications
All-weather applications

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