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Series 1900 Compact Low Differential Pressure Switch
Brand: Dwyer Instruments, LLCOur most popular Series 1900 Compact Low Differential Pressure Switch combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units.
Designed for air conditioning service, they also serve many fluidics, refrigeration, oven and dryer applications. For air and non-combustible compatible gases, Series 1900 switches have set points from 0.07 to 20" w.c. (1.8 to 508 mm).
Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering. UL, CE and CSA listed, and FM approved.
CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.
Features- Compact size and repeatability, provides a high-value switch for many industrial and OEM applications
- Wide range of models from 0.07 in w.c. to 20 in w.c. can meet exacting OEM specifications for a low pressure switch
- Range screw protected inside enclosure provides simplifies making adjustments but prevents tampering
Displaying prices & availability for Ohio, United States in CAD. Change location.
Models matching criteria: 6
DWYER Differential Pressure Switch, Range 0.07-0.15" W.C., Approximate Deadband @ Min. Set Point 0.04, Approximate Deadband @ Max. Set Point 0.04. view more
- Base Model - Compact Low Differential Pressure Switch with Conduit (Model Number 1910)
- Pressure Range - Inches of WC: 0.07 to 0.15
- Tag - None
- O-Ring - Standard Material
- Switch Type - Standard
- Options - None
- Enclosure Material - 16 ga Steel
- Electrical Contacts - Standard
- Conduit - Standard
- Manual Reset - None
- Mounting - Diaphragm in Vertical Position
- Adjustment Type - Field Adjustable
- Drain / Vent - No Drain/Vent
100+ In Stock
$917.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Range 4.0-20.0" W.C., Approximate Deadband @ Min. Set Point 0.40, Approximate Deadband @ Max. Set Point 0.50. view more
- Base Model - Compact Low Differential Pressure Switch with Conduit (Model Number 1910)
- Pressure Range - Inches of WC: 4.0 to 22.0
- Tag - None
- O-Ring - Standard Material
- Switch Type - Standard
- Options - None
- Enclosure Material - 16 ga Steel
- Electrical Contacts - Standard
- Conduit - Standard
- Manual Reset - None
- Mounting - Diaphragm in Vertical Position
- Adjustment Type - Field Adjustable
- Drain / Vent - No Drain/Vent
50+ In Stock
$393.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Range 0.40-1.6" W.C., Approximate Deadband @ Min. Set Point 0.15, Approximate Deadband @ Max. Set Point 0.16.
50+ In Stock
$1,756.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Range 3.0-11.75" W.C., Approximate Deadband @ Min. Set Point 0.40, Approximate Deadband @ Max. Set Point 0.40.
50+ In Stock
$488.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Range 1.40-5.5" W.C., Approximate Deadband @ Min. Set Point 0.30, Approximate Deadband @ Max. Set Point 0.30.
25+ In Stock
$2,472.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Range 0.15-0.5" W.C., Approximate Deadband @ Min. Set Point 0.10, Approximate Deadband @ Max. Set Point 0.10. view more
- Base Model - Compact Low Differential Pressure Switch with Conduit (Model Number 1910)
- Pressure Range - Inches of WC: 0.15 to 0.55
- Tag - None
- O-Ring - Standard Material
- Switch Type - Standard
- Options - None
- Enclosure Material - 16 ga Steel
- Electrical Contacts - Standard
- Conduit - Standard
- Manual Reset - None
- Mounting - Diaphragm in Vertical Position
- Adjustment Type - Field Adjustable
- Drain / Vent - No Drain/Vent
24 In Stock
$233.00 CAD
$10.00 Shipping
Specifications
Adjustment Type
- Factory Set (Pre-Set)
- Field Adjustable
Approvals & Certifications
- CE
- CSA
- FM
- UL
Deadband, Approximate
- Inches WC: 0.04 to 0.50
Diaphragm Material
- Buna-N
- Fluoroelastomer
Electrical Connectors
- 3 Screw Typical
- Common
Electrical Contacts
- Gold
- Normally Closed
- Normally Open
- Silver
Electrical Rating
- 15 A at 120-480 Vac, 60 Hz Resistive 1/8 hp at 125 Vac, 1/4 hp at 250 Vac, 60 Hz Derate to 10 A for Operation at High Cycle Rates
Enclosure, Body Material
- 16 Ga. Steel Enclosure - Weatherproof
- Cast Iron Base with Aluminum Cover - Explosion-proof
Environmental Protection
- IP66
- IP54
- NEMA 3
- NEMA 4
- NEMA 7
- NEMA 9
NPT Connection
- 1/8” NPT Female
O-Ring Material
- Buna-N
- Fluoroelastomer
Operating Temperature
- -34° to 82° C (-30° to 180° F)
Set Point - Decreasing
- Inches WC: 0.07 to 20
Set Point - Increasing
- Inches WC: 0.07 to 20
Switch Type
- SPDT
System Pressure
- bar: 0.68
- kPa: 68.95
- psig: 10
Temperature Range
- -34° to 82.2° C (-30° to 180° F) (32° F for Non-Dry Air)
- Air Conditioning Refrigeration Coil Icing Detection; Defrost Cycle Initiation
- Clogged Filter Detection
- Variable Air Volume Controller
