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Dwyer Air Flow Switch: 3V DC (MPN DAFA-1) - Airflow Switches
DwyerAirflow Switches

Dwyer Air Flow Switch: 3V DC (MPN DAFA-1)

The Dwyer DAFA-1 is an airflow switch with a 3V DC input voltage and an ABS housing. This product is designed for sensing air flow in industrial applications.

SKU 3G-OTH-69229

Brand
Dwyer
Item
Air Flow Switch: 3V DC
Category
Airflow Switches
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Technical Specifications

Dwyer
Manufacturer Part Number
DAFA-1
Input Voltage
3V DC
Housing Material
ABS
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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer DAFA-1 is an airflow switch with a 3V DC input voltage and an ABS housing. This product is designed for sensing air flow in industrial applications.

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 DAFA-1 airflow switch used for?

The Dwyer DAFA-1 airflow switch is used to detect the presence or absence of air flow in industrial HVAC, ventilation, and process systems. It provides a switching signal when air flow reaches a set point, enabling automated control or alarm functions in ducts, fume hoods, and clean rooms.

What are the specifications of the Dwyer DAFA-1?

The Dwyer DAFA-1 airflow switch operates on a 3V DC input voltage and features an ABS housing. The manufacturer part number is DAFA-1. It is designed for sensing air flow in industrial environments and is supplied by 3G Electric as a global distributor.

Where to buy the Dwyer DAFA-1 worldwide?

You can source the Dwyer DAFA-1 airflow switch through 3G Electric, which handles global logistics, customs clearance, and delivery to worldwide destinations. As a distributor, 3G Electric provides this Dwyer product for industrial air flow sensing applications.

How to install the Dwyer DAFA-1 airflow switch?

Install the Dwyer DAFA-1 by mounting it in a duct or air stream with the sensing element oriented into the flow. Connect the 3V DC power supply per the wiring diagram. Ensure the switch is positioned away from turbulence and vibration. Follow standard industrial electrical safety practices during 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 airflow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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