H3A-1SL | Dwyer Instruments | Pressure Components
Differential Pressure Switch, Aluminum/Nitrile, 10 - 180" WC, SPDT Snap Switch, Wires
Brand:Dwyer Instruments
MPN:H3A-1SL
SKU:H3A-1SL
List Price:
$3,840.00
Today's Price:
$1,996.80
Log in for customized pricingproduct specifications
Measurement
Inches of Water Column
Media Compatibility
Air
Connection Size
1/8 in
Type
Adjustable
Connection
NPT
Housing Material
Metallic
Contact Rating
5 A
Power Required
Switch
Contact Type
SPDT
Measurement Range
10 - 180" WCD
Approvals
CE,CSA,UL
Supply Voltage (Nominal)
240 VAC
Direction
Uni-Directional
product series specifications
Wetted Materials: See pressure chamber and diaphragm material in model chart
Temperature Limit: -4 to 220°C (-20 to 104°F), ATEX: -20 to 90°C (-4 to 194°F)
Pressure Limit: 1500 psig (103 bar)
Enclosure Rating: See ratings chart
Switch Type: SPDT or DPDT snap switch
Electrical Rating: 5A @ 125/250 VAC (V~), 30 VDC (V ). MV option: 1A @ 125 VAC (V~); 1A res., .5A ind. @ 30 VDC (V )
Electrical Connections: See model chart
Conduit Connection: 3/4" female NPT
Process Connection: 1/8" female NPT
Mounting Orientation: Vertical
Set Point Adjustment: Internal screw
Weight: 4 lb, 2 oz (2 kg)
Deadband: Approximately 5% of range
product series features
- One or two single pole
- Set-points up to 200 psid
- Suitable for hazardous locations
- Weatherproof housings
more information & related documents
Series Description
The Dwyer H3 Series adjustable differential pressure switches actuate one or two single pole, double throw (SPDT) snap switches in response to increasing or decreasing pressure of compatible gases or liquids. Four field adjustable operating ranges are available allowing set-points up to 200 psid. All models are suitable for hazardous locations and also include weatherproof housings as detailed in the chart below. Read and understand instructions completely before proceeding with installation or operation.
Kele Description
DIFF PRESS SW, ADJUST, 10.00-180.00" WC
Manufacturer
Dwyer Instruments
Related Documents
H3 Installation Guide 
