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Dwyer Series 1950 Explosion Proof Di: Adj, 4 in wc to 20 in wc, NEMA-3 Enclosure - Hazardous Location Adjustable Set-Point Air Pressure Switches
DwyerHazardous Location Adjustable Set-Point Air Pressure Switches

Dwyer Series 1950 Explosion Proof Di: Adj, 4 in wc to 20 in wc, NEMA-3 Enclosure

The Dwyer Series 1950 Explosion Proof Differential Adjustable Set-Point Air Pressure Switch is a hazardous-location-rated device with a NEMA-3 enclosure and SPDT switch. It is adjustable from 4 in wc to 20 in wc and…

SKU 3G-OTH-68262

Also listed as: 1950202F · 1950 20 2F

Brand
Dwyer
Item
Series 1950 Explosion Proof Di: Adj, 4 in wc to 20 in wc, NEMA-3 Enclosure
Category
Hazardous Location Adjustable Set-Point Air Pressure Switches
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
1950-20-2F
Type
4 in wc to 20 in wc, NEMA-3 Enclosure, SPDT, NPT
NPT
1/8 in

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer Series 1950 Explosion Proof Differential Adjustable Set-Point Air Pressure Switch is a hazardous-location-rated device with a NEMA-3 enclosure and SPDT switch. It is adjustable from 4 in wc to 20 in wc and features a 1/8 in NPT connection (MPN 1950-20-2F).

Frequently Asked Questions

What is the Dwyer Series 1950 explosion-proof differential pressure switch used for?

The Dwyer Series 1950 is used to monitor or control air pressure in hazardous locations. It is suitable for environments requiring explosion-proof protection, such as oil refineries, chemical plants, and gas-handling facilities, where flammable gases or vapors may be present.

What are the specifications of the Dwyer 1950-20-2F pressure switch?

The Dwyer 1950-20-2F has an adjustable set-point range of 4 in wc to 20 in wc. It features a NEMA-3 enclosure, SPDT switch output, and 1/8 in NPT pressure connections. This model is designed for explosion-proof service in hazardous locations.

Where to buy the Dwyer 1950-20-2F pressure switch worldwide?

3G Electric supplies the Dwyer 1950-20-2F pressure switch worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this explosion-proof differential pressure switch.

How to install the Dwyer Series 1950 explosion-proof pressure switch?

Install the Dwyer Series 1950 in a location that meets NEMA-3 requirements for outdoor or wet environments. Use 1/8 in NPT fittings for pressure connections. Ensure wiring complies with local electrical codes and the SPDT contacts are correctly rated for your control circuit. Always follow the manufacturer's manual for hazardous-area installation.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer hazardous location adjustable set-point air pressure switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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