Dwyer Series A1PS/A1VS Economical Pressure Switch

Part Number: Series A1PS/A1VS Category:

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Series A1PS/A1VS Economical Pressure Switches are designed with a 15 Amp SPDT switch for direct control of pumps and motors. Available in pressure, vacuum, or compound ranges, the switches offer a field adjustable set point. Easily adjust the switch by aligning the top of the self locking adjusting nut with the desired setting indicated on the adjacent range scale. Connection is 1/4″ male NPT for quick installation and can be mounted in any position.

Product Applications

  • OEM
  • Compressors
  • Motor control
  • Process equipment
  • Pump control

Service : Compatible liquids or gases.

Wetted Materials : Diaphragm: Buna-N; Body with Fitting: Zinc alloy, chromate finish.

Temperature Limits : -31 to 185°F (-35 to 85°C).

Pressure Limits : 600 psig.

Vacuum Limits : 29.9″ Hg (vacuum and compound skus only).

Switch Type : SPDT snap action.

Electrical Ratings : 15 A (resistive) @ 250 VAC, 1/2 HP @ 250 VAC.

Electrical Connections : Three screw terminals.

Process Connection : 1/4″ male NPT.

Set Point : Field adjustable via knurled screw cap.

Cycling : Not to exceed 1 Hz.

Sensor Element : Diaphragm.

Weight : 7.4 oz (209 g).

Agency Approvals : UL.

  • 15 A contact allows direct control reducing costs and reliability by having to introduce additional contacts and relays
  • Field adjustable reduces installation time bring application on-line faster

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