Dwyer Series 1800 Low Differential Pressure Switch

Part Number: Series 1800 Category:

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Essential for industrial environments, the Series 1800 Low Differential Pressure Switch combines small size and low price with 2% repeatability for enough accuracy for all but the most demanding applications. Set point adjustment inside the mounting stud permits mounting switch on one side of a wall or panel with adjustment easily accessible on the opposite side. UL and CSA listed, and FM approved.


Product Applications

  • Process applications
  • Mechanical equipment control

Service : Air and non-combustible, compatible gases.

Wetted Materials : Consult Factory.

Temperature Limits : -30 to 180°F (-34 to 82.2°C). 1823-00, -20 to 180°F (-28.9 to 82.2°C).

Pressure Limits : 10 psig (68.95 kPa) continuous, 25 psig (172.4 kPa) surge.

Switch Type : Single-pole double-throw (SPDT).

Repeatability : ±2%.

Electrical Rating : 15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. De-rate to 10 A for operation at high cycle rates.

Electrical Connections : 3 screw type, common, normally open and normally closed.

Process Connections : 1/8″ female NPT.

Mounting Orientation : Diaphragm in vertical position. Consult factory for other position orientations.

Set Point Adjustment : Screw type inside mounting spud.

Weight : 1 lb, 5 oz (595 g).Agency Approvals:CE, CSA, FM, UL. NOTE: Optional (-EXPL) Explosion-proof Enclosure does not possess any agency approvals.

  • Compact size and repeatability, provides a high-value switch for many industrial applications
  • Designed for panel and wall mounting and provides easy access that simplifies making adjustments or changes to switch setting
  • Wide range of skus from 0.07 in w.c. to 85 in w.c. can meet exacting specifications for a low pressure switch

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