Skip to main content
Press Enter
Starting at $928.20CAD
Configure
Dwyer

1950G - Explosion-Proof Differential Pressure Switch

Combines the best features of the popular Dwyer® Series 1950 Pressure Switch with the benefit of natural gas compatibility

Starting at
$928.20CAD
Have questions? We're here to help!
Have questions? We're here to help!
Configure

 Series 1950G Explosion-Proof Differential Pressure Switch combines the best features of the popular Dwyer® Series 1950 Pressure Switch with the benefit of natural gas compatibility. Units are rain-tight for outdoor installations, and are UL listed for use in Class I, Groups A, B, C, & D; Class II, Groups E, F, & G and Class III atmospheres, Directive 2014/34/EU (ATEX) Compliant for 2813 II 2G Ex db IIB+H2 T6, CSA & FM approved for Class I, Div. 1, Groups B, C, D; Class II, Div. 1, Groups E, F, G and Class III atmospheres. IECEx Ex db IIB+H2  T6 (-40°C<Ta<+60°C). The 1950G is very compact, about half the weight and bulk of equivalent conventional explosion-proof switches.

Easy access to the SPDT relay and power supply terminals is provided by removing the top plate of the aluminum housing. A supply voltage of 24 VDC, 120 or 240 VAC is required. A captive screw allows the cover to swing aside while remaining attached to the unit. Adjustment to the set point of the switch can be made without disassembly of the housing.
• Compatible with natural gas
• External set point screw provides easy access that simplifies making adjustments without opening or disassembling enclosure
• Easily accessible electrical connection simplifies the installation
Service:Air and compatible combustible gases.
Wetted Materials:Consult factory.
Temperature Limits:0 to 140°F (-17 to 60°C). Note: Set point drift may occur with ambient temperature changes.
Agency Approvals:ATEX, CE, CSA, FM, IECEx, UL.
Weight:2 lbs 15.7 oz (1.35 kg).
Set Point Adjustment:Screw type on top of housing.
Mounting Orientation:Diaphragm in vertical position. Consult factory for other position orientations.
Process Connections:1/8" female NPT.
Electrical Connections:Internal terminal block.
Power Requirements:24 VDC ±10%. 120 or 240 VAC ±10% optional.
Electrical Rating:10 A, 120/240 VAC, 28 VDC. Resistive 50 mA, 125 VDC.
Switch Type:1 Form C relay (SPDT).
Enclosure Rating:NEMA 3 (IP54), NEMA 7 and 9.
Pressure Limits:45" w.c. (11.2 kPa) continuous; 10 psig (68.95 kPa) surge.
• Natural gas applications
• Process applications
• All-weather applications
 

  • Thumbnail of document Brochure - 1950G - Explosion-Proof Differential Pressure Switch
    Download

    Brochure - 1950G - Explosion-Proof Differential Pressure Switch

    Download
  • Thumbnail of document Data Sheet - 1950G - Explosion-Proof Differential Pressure Switch
    Download

    Data Sheet - 1950G - Explosion-Proof Differential Pressure Switch

    Download
  • Thumbnail of document Manual - 1950G - Explosion-Proof Differential Pressure Switch
    Download

    Manual - 1950G - Explosion-Proof Differential Pressure Switch

    Download

Request a Calibration Quote

We’re here to make calibration easy. Request a quote today and let our team give you the care, precision, and service you can trust.
Learn more

Browse By Brands

Uncover the brands that set the standard for quality and dependability in every industry we serve.
Learn more