Pressure setpoint typeAdjustable
Pressure typeDifferential
Range15 in. wc to 55 in. wc
Electrical connectionScrew Terminals
Mounting orientationVertical
Mounting hole di.3/16"
Overall depth2 3/8"
Mounting hole center to center distance4 3/16"
Overall dia.3 1/2"
Sample line connection size1/8"
Product typeDifferential Pressure Switch
Sample line connection typeNPT
Pressure set point0.15 in. wc to 0.5 in. wc
Switching differential0.15 in. wc to 0.5 in. wc
Mounting hole diameter3/16"
Maximum pressure rating45 in. wc
Minimum operating temperature-30°F
Electrical rating1/4 Hp @ 250V AC, 60 Hz, 1/8 Hp @ 125V AC, 15A @ 120 to 480V AC, 60 Hz Resistive, Derate to 10A For OperationAt High Cycle Rates
Contact formSPDT
Electrical connection typeScrew Terminals
Sample line connector typeNPT
Type of set pointAdjustable
Maximum operating temperature180°F
ApplicationAir Flow Control, Clogged Or Dirty Filter Detection, Frost And Ice Detection
ApprovalsCSA, FM, UL
Gauge proof pressure500 psig
Pressure range psig(bar)10 Bar
Contact typeSPDT
Family seriesDwyer Instruments Pressure Switches, 1900 Series
Product series1900
Ships factory directNo
Process connection1/8 NPT Female
Ambient temperature-30-180 °F
Connection size1/8 NPT Female
Temperature range-30-180 °F
Pressure range10bar
Gross weight0.885 lbs
Series1900 Series
Enclosure ratingIP56
Operating fluidAir ; Non-Combustible Gas
Port size0.125 in
Primary typePressure Switch
Adjustment range0.15 to 0.5 w.c. Amp