Dwyer Instruments 530 | Air flow switch.
A cost-effective paddle-type air flow switch with a durable die-cast body and stainless steel vane, featuring a field-adjustable air velocity range of 400–1600 FPM.
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Part No.: 530
The Dwyer Model 530 Air Flow Switch provides reliable duct air flow sensing for commercial HVAC and air-handling applications. Its rugged die-cast body, stainless steel vane, and SPDT snap switch make it a practical choice for applications requiring dependable air flow proving at an accessible price.
The Model 530 features a field-adjustable air velocity range of 400–1600 FPM. The trip point can be adjusted using the screw-type set point, allowing technicians to configure the switch according to the requirements of the installation.
The stainless steel sensing vane is housed in a durable die-cast body, providing a robust construction suitable for regular HVAC service. The unit uses a two-screw mounting arrangement and can be installed on ducts up to 6 inches in diameter.
Electrical connections are made through a 7/8-inch conduit hole using screw terminals. The SPDT snap switch is rated for 9.8 A full load at 125 VAC, 4.9 A at 250 VAC, and up to 15 A resistive at 125, 250, or 480 VAC, making it suitable for a range of fan interlock, alarm, and air flow proving applications.
The Dwyer Model 530 carries UL and CE approvals for use in applicable commercial HVAC installations.
This model is part of Dwyer Instruments' dedicated product range available through GeneralTech Shop. Contact our team if you need help confirming whether the Model 530 is suitable for your application.
Ready to order the Model 530? Speak to our team. Call +971 6 5436933.
Key Benefits
- Field-adjustable air velocity range of 400–1600 FPM
- Durable die-cast body with stainless steel sensing vane
- SPDT snap switch for air flow proving applications
- Two-screw mounting for ducts up to 6 inches in diameter
- Screw-terminal wiring through a 7/8-inch conduit hole
- 15 A resistive rating at 125, 250, or 480 VAC
- UL and CE approved
Who This Product Is Best For
- HVAC contractors
- Commercial HVAC installation teams
- Building maintenance technicians
- Facility management teams
- Technicians requiring a cost-effective duct air flow proving switch
- Applications involving fan interlocks, alarms, and air flow monitoring
How to Use
- Mount the Model 530 to the duct using the two-screw mounting arrangement.
- Connect the electrical wiring through the 7/8-inch conduit hole to the screw terminals.
- Set the required trip point within the 400–1600 FPM range using the screw-type adjustment.
- Start the air handling system and verify that the SPDT switch operates correctly at the selected air flow.
- Confirm the switch operation as part of the HVAC system commissioning process.
Frequently Asked Questions
What air velocity range does the Dwyer Model 530 cover?
The Model 530 has a field-adjustable air velocity range of 400–1600 FPM.
What type of switch does the Model 530 use?
It uses an SPDT snap switch for air flow proving and control applications.
What duct sizes does the Model 530 fit?
The Model 530 is designed for ducts up to 6 inches in diameter and uses a two-screw mounting arrangement.
What is the electrical rating of the Model 530?
The switch is rated at 9.8 A full load at 125 VAC, 4.9 A at 250 VAC, and 15 A resistive at 125, 250, or 480 VAC.
What material is the sensing vane made from?
The sensing vane is made from stainless steel and is housed in a durable die-cast body.
Is the Dwyer Model 530 UL approved?
Yes. The Model 530 carries both UL and CE approvals.
What is the Model 530 commonly used for?
It can be used for duct air flow proving, fan interlocks, HVAC alarms, and other applications where reliable air flow detection is required.
Does GeneralTech Shop deliver the Model 530 across the UAE?
Call +971 6 5436933 and our team will confirm delivery availability and timelines for your emirate.
Is a calibration certificate available for the Model 530?
Calibration and certification availability may depend on the order. Call +971 6 5436933 and our team will confirm the available options.
How can I get pricing for the Dwyer Model 530?
Pricing is quote-based. Call +971 6 5436933 and our team will confirm the current price and availability.
For pricing or to place an order, contact GeneralTech Shop. Call +971 6 5436933.
