We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Dwyer DAFA-1 Airflow Switch, 3V DC, ABS Housing - Airflow Switches
DwyerAirflow Switches

Dwyer DAFA-1 Airflow Switch, 3V DC, ABS Housing

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

Also listed as: DAFA1 · DAFA 1

Brand
Dwyer
Item
DAFA-1 Airflow Switch, 3V DC, ABS Housing
Category
Airflow Switches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
DAFA-1
Input Voltage
3V DC
Housing Material
ABS

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Air Flow Switch: Adj, 0.15 in wc to 0.5 in wc, SPDT, 1/8 in Sample Line Connection Size, NPT (MPN 1920-0)
Dwyer
Air Flow Switch: Adj, 0.15 in wc to 0.5 in wc, SPDT, 1/8 in Sample Line Connection Size, NPT (MPN 1920-0)
Adjustable set-point air pressure switch with a range of 3 in wc to 11.75 in wc. Features a SPDT switch rated for 120 to 480V AC and a 1/8 in NPT sample line connection. Used for monitoring and controlling air pressure in HVAC, ventilation, and process control systems
Dwyer
Adjustable set-point air pressure switch with a range of 3 in wc to 11.75 in wc. Features a SPDT switch rated for 120 to 480V AC and a 1/8 in NPT sample line connection. Used for monitoring and controlling air pressure in HVAC, ventilation, and process control systems
Pressure Switch: Adj, 5 psig to 150 psig, Conduit Box, SPST, NPT, 120V AC/240V AC/DC (MPN DA-31-2-7)
Dwyer
Pressure Switch: Adj, 5 psig to 150 psig, Conduit Box, SPST, NPT, 120V AC/240V AC/DC (MPN DA-31-2-7)
Pressure Switch: Adj, Auto Reset, 5 psi to 100 psi, Conduit Box, SPDT, NPT, 120/240V AC (MPN DA-7031-153-6)
Dwyer
Pressure Switch: Adj, Auto Reset, 5 psi to 100 psi, Conduit Box, SPDT, NPT, 120/240V AC (MPN DA-7031-153-6)
Dwyer
Dwyer
Pressure Switch: Adj, Auto Reset, 5 psi to 150 psi, Conduit Box, SPDT, NPT, 120/240V AC (MPN DA-7031-153-7)
Air Pressure Switch: Adj, Auto Reset, 0.12 in wc to 1.6 in wc, Std Housing, SPDT, Push-On, 250V AC (MPN ADPS-04-2-N)
Dwyer
Air Pressure Switch: Adj, Auto Reset, 0.12 in wc to 1.6 in wc, Std Housing, SPDT, Push-On, 250V AC (MPN ADPS-04-2-N)

More from Dwyer

View all Dwyer parts
Air Flow Switch: SPST, 30V DC/250V AC, 3 A, 1,969 fpm Max, 197 fpm Horizontal (MPN AVFS-1)
Dwyer
Air Flow Switch: SPST, 30V DC/250V AC, 3 A, 1,969 fpm Max, 197 fpm Horizontal (MPN AVFS-1)
Air Flow Switch: SPST, 30V DC/250V AC, 3 A, 1,969 fpm Max, 197 fpm Horizontal (MPN AVFS-2)
Dwyer
Air Flow Switch: SPST, 30V DC/250V AC, 3 A, 1,969 fpm Max, 197 fpm Horizontal (MPN AVFS-2)
Air Flow Switch: SPDT, 250V AC, 15 A, 1,800 fpm Max, 200 fpm Horizontal (MPN AAFS)
Dwyer
Air Flow Switch: SPDT, 250V AC, 15 A, 1,800 fpm Max, 200 fpm Horizontal (MPN AAFS)