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DWYER #1910-1

Pressure Switch, Diaphragm, SPDT, 15 A at 120 to 480 VAC

SKU # 78900698990 Manufacturer Series: 1900
RoHS Compliant
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Warning – California Prop 65
Type: Differential Pressure Switch
Operator Type: Diaphragm
Pressure Media: Air, Non-Combustible and Compatible Gases
Circuit: SPDT
Contact Rating: 15 A at 120 to 480 VAC
Operating Range: 0.40 to 1.6 in. wc
Occasional Surge: 10 psig
Connection: 1/8 in. FNPT

Our 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 in. wc. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering.

Warning – California Prop 65

Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit

To learn more about Prop 65, visit