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Dwyer Differential Pressure Switch: Adj, Auto Reset, 0 in wc to 45 in wc, NEMA-3 Enclosure - Hazardous Location Adjustable Set-Point Air Pressure Switches
DwyerHazardous Location Adjustable Set-Point Air Pressure Switches

Dwyer Differential Pressure Switch: Adj, Auto Reset, 0 in wc to 45 in wc, NEMA-3 Enclosure

The Dwyer 1950-1-2F is a hazardous location adjustable set-point air pressure switch with an auto reset function. It features a differential pressure range of 0 in wc to 45 in wc, a NEMA-3 enclosure, and a SPDT…

SKU 3G-OTH-68118

Also listed as: 195012F · 1950 1 2F

Brand
Dwyer
Item
Differential Pressure Switch: Adj, Auto Reset, 0 in wc to 45 in wc, NEMA-3 Enclosure
Category
Hazardous Location Adjustable Set-Point Air Pressure Switches
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dwyer
Manufacturer Part Number
1950-1-2F
Type
Auto Reset, 0 in wc to 45 in wc, NEMA-3 Enclosure, SPDT, NPT
Switch Voltage
480V AC

Technical Documents

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

Product Description

The Dwyer 1950-1-2F is a hazardous location adjustable set-point air pressure switch with an auto reset function. It features a differential pressure range of 0 in wc to 45 in wc, a NEMA-3 enclosure, and a SPDT switch rated at 480V AC. This model uses an NPT connection and is designed for use in hazardous environments.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dwyer 1950-1-2F differential pressure switch used for?

The Dwyer 1950-1-2F is used to monitor and control differential air pressure in hazardous locations. It triggers an SPDT switch at a set point between 0 and 45 in wc, making it suitable for ventilation, filtration, and process safety systems in industrial plants.

What are the specifications of the Dwyer 1950-1-2F?

The Dwyer 1950-1-2F is an auto-reset differential pressure switch with a range of 0 in wc to 45 in wc. It features a NEMA-3 enclosure, SPDT contacts rated at 480V AC, and an NPT connection. It is designed for hazardous location use.

Where to buy the Dwyer 1950-1-2F worldwide?

3G Electric supplies the Dwyer 1950-1-2F differential pressure switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this model.

How to install the Dwyer 1950-1-2F differential pressure switch?

Install the Dwyer 1950-1-2F in a dry, protected location using the NPT connection. Ensure the enclosure is properly sealed to maintain NEMA-3 integrity. Wire the SPDT contacts per the 480V AC rating and adjust the set point within the 0 to 45 in wc range.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
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