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Dwyer Pressure Switch: Adj, Auto Reset, 3 in wc to 22 in wc, Conduit Box, SPDT - Adjustable Set-Point Air Pressure Switches
DwyerAdjustable Set-Point Air Pressure Switches

Dwyer Pressure Switch: Adj, Auto Reset, 3 in wc to 22 in wc, Conduit Box, SPDT

The Dwyer 1823-20 is an adjustable set-point air pressure switch with auto reset, covering a range of 3 in wc to 22 in wc. It features a SPDT switch rated for 120 to 480V AC and includes a conduit box with NPT…

SKU 3G-OTH-68291

Brand
Dwyer
Item
Pressure Switch: Adj, Auto Reset, 3 in wc to 22 in wc, Conduit Box, SPDT
Category
Adjustable Set-Point Air Pressure Switches
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Technical Specifications

Dwyer
Manufacturer Part Number
1823-20
Type
Auto Reset, 3 in wc to 22 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 1823-20 is an adjustable set-point air pressure switch with auto reset, covering a range of 3 in wc to 22 in wc. It features a SPDT switch rated for 120 to 480V AC and includes a conduit box with NPT connection. This product is designed for industrial applications requiring precise pressure monitoring.

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 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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