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Dwyer Adjustable Set-Point Air Pressure Switch - Adjustable Set-Point Air Pressure Switches
DwyerAdjustable Set-Point Air Pressure Switches

Dwyer Adjustable Set-Point Air Pressure Switch

The Dwyer 1823-1 is an adjustable set-point air pressure switch with auto reset, covering a range of 0.3 in wc to 1 in wc. It features a SPDT switch rated for 120 to 480V AC, housed in a conduit box with NPT connections.

SKU 3G-OTH-68423

Also listed as: 18231 · 1823 1

Brand
Dwyer
Item
Adjustable Set-Point Air Pressure Switch
Part Number
1823-1
Category
Adjustable Set-Point Air Pressure Switches
Available to Order
Also known as:1823-1Dwyer
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dwyer
Manufacturer Part Number
1823-1
Type
Auto Reset, 0.3 in wc to 1 in wc, Conduit Box, SPDT, NPT
AC
120 to 480V
Switch Voltage
120 to 480V AC

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

Product Description

The Dwyer 1823-1 is an adjustable set-point air pressure switch with auto reset, covering a range of 0.3 in wc to 1 in wc. It features a SPDT switch rated for 120 to 480V AC, housed in a conduit box with NPT connections.

Frequently Asked Questions

What is the Dwyer 1823-1 pressure switch used for?

The Dwyer 1823-1 is an adjustable set-point air pressure switch used to monitor or control air pressure in HVAC, ventilation, and industrial process systems. It auto-resets and switches at 0.3 in wc to 1 in wc, making it suitable for duct static pressure or filter monitoring.

What are the specifications of the Dwyer 1823-1 pressure switch?

The Dwyer 1823-1 is an adjustable auto-reset pressure switch with a set-point range of 0.3 in wc to 1 in wc. It features a SPDT switch rated for 120 to 480V AC, housed in a conduit box with NPT connections. The manufacturer part number is 1823-1.

Where to buy the Dwyer 1823-1 pressure switch worldwide?

3G Electric supplies the Dwyer 1823-1 pressure switch worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this adjustable set-point air pressure switch.

How to install the Dwyer 1823-1 pressure switch?

Install the Dwyer 1823-1 in a dry location using NPT fittings. Connect the SPDT switch per the wiring diagram for 120 to 480V AC. Adjust the set-point between 0.3 in wc and 1 in wc using the adjustment screw. Verify operation with a manometer before finalizing.

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
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Dwyer Products

3G Electric supplies Dwyer 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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