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Dwyer 1921-00 1900 Low Differential Pressure Switch

Options: With HP Back Port, Conduit: No, Range: 0.07-0.15" w.c.
  • Brand Dwyer
  • Part # 1921-00
  • Model # 1900
  • Condition
    Brand New
Availability
2 Weeks Factory Lead Time
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Options and Related Products

Options:
Options: With HP Back Port
Conduit:
Conduit: No
Range:
Range: 0.07-0.15" w.c.

Dwyer, 1921-00, Series 1900 Compact Low Differential Pressure Switch, 0.07-0.15" w.c.min. set point 0.04, approx. deadbandmax. set point 0.04.

Repetitive Accuracy within 3%

Our most popular seriescombines 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. 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.

Product Applications

  • Air conditioning refrigeration coil icing detection; defrost cycle intiation.
  • Clogged filter detection.
  • Variable air volume controller.

Caution: For Use Only With Air Or Compatible Gases.

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Technical Details

Optional Accessories
Reviews
ServiceAir and non-combustible, compatible gases
Temperature Limits-30 to 180°F (-34 to 82.2°C)
Pressure Limits45" w.c. (11.2 kPa) continuous, 10 psig (68.95 kPa) surge
Switch TypeSingle-pole double-throw (SPDT)
Repeatability±3%
Electrical Rating15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. Derate to 10 A for operation at high cycle rates
Electrical Connections3 screw type, common, normally open and normally closed
Process Connections1/8" female NPT
Mounting OrientationDiaphragm in vertical position
Set Point AdjustmentScrew type inside conduit enclosure
Weight1 lb 4.5 oz (581 g)
Agency ApprovalsCE, CSA, FM, UL
Notes

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Product Details
ServiceAir and non-combustible, compatible gases
Temperature Limits-30 to 180°F (-34 to 82.2°C)
Pressure Limits45" w.c. (11.2 kPa) continuous, 10 psig (68.95 kPa) surge
Switch TypeSingle-pole double-throw (SPDT)
Repeatability±3%
Electrical Rating15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. Derate to 10 A for operation at high cycle rates
Electrical Connections3 screw type, common, normally open and normally closed
Process Connections1/8" female NPT
Mounting OrientationDiaphragm in vertical position
Set Point AdjustmentScrew type inside conduit enclosure
Weight1 lb 4.5 oz (581 g)
Agency ApprovalsCE, CSA, FM, UL
Optional Accessories

Optional Accessories

Note

Note: Please read description carefully. Do not base your order on the picture presented.

Reviews

Reviews

Mega Depot
(800) 884-5767
+1 (332) 900-3727 (Intl.)