Series A1F OEM Pressure Switch

Field Adjustable with Weather-Proof Enclosure

Low cost and precision made, the Series A1F Low Cost OEM Pressure Switch is ideal for OEM industrial applications. Wetted materials of 316 SS and fluorocarbon ensure great chemical compatibility with a wide range of process media. The open case style is perfect for panel mounting applications like pump skids. Weatherproof enclosure is available in polycarbonate offering a low cost weatherproof switch. Superior 15 A contact allows direct control of motors or pumps without the use of external relays, a true cost savings. Features include a convenient indicating scale for quick and easy field adjustment.

Product Applications

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

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Build Your Custom Part. Use our Product Configurator

Model Description Usually Ships* Price Order
Ships: Next Day
Price: $100.00
Pressure switch, range 2-15 psig (0.14-1.03 bar), min. deadband 2 psig (0.14 bar), max. deadband 3 psig (0.21 bar). Next Day* $100.00 Order
Ships: Next Day
Price: $100.00
Pressure switch, range 4-75 psig (0.28-5.17 bar), min. deadband 4 psig (0.27 bar), max. deadband 15 psig (1.0 bar). Next Day* $100.00 Order
Ships: Next Day
Price: $100.00
Pressure switch, range 8-225 psig (0.55-15.5 bar), min. deadband 8 psig (0.55 bar), max. deadband 25 psig (1.7 bar). Next Day* $100.00 Order
Ships: Next Day
Price: $100.00
Pressure switch, range 16-450 psig (1.1-31.0 bar), min. deadband 15 psig (1.0 bar), max. deadband 50 psig (3.5 bar). Next Day* $100.00 Order

Can't find what you need? Build Your Custom Part. Use our Product Configurator


Compatible liquids and gases.
Wetted Materials:
Pressure Chamber: 316 SS; Diaphragm: Fluorocarbon.
Temperature Limit:
-40 to 175°F (-40 to 80°C).
Pressure Limits:
500 psig (34 bar).
Enclosure Rating:
No rating for open construction. Optional -PC enclosure meets NEMA 4X standards.
Switch Type:
SPDT snap switch.
Electrical Rating:
15 A @ 120/240/480 VAC, 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC.
Electrical Connection:
Screw terminals.
Process Connection:
1/4" female NPT and 1/2" male NPT.
Mounting Orientation:
Within 20° of vertical.
Set Point Adjustment:
Knurled screw cap with indicating scale.
Fixed, see products on Order page for minimum and maximum deadband.
10.5 oz (297 g).
Agency Approvals:
CE, cUL, UL.


  • 15 A contact allows direct control reducing costs and reliability by having to introduce additional contacts and relays
  • Case style allows use for panel mounting application with optional weather-proof enclosure for use in outdoor environments
  • Field adjustable reduces installation time bring application on-line faster
  • Wetted material provides support for wider range of process media


  • Weatherproof Enclosure. Optional enclosure factory installed. To order change "O" to "PC". Example: A1F-PC-SS-1-1.


Model Chart

EXAMPLE A1F O SS 1 1 STW Series A1F-O-SS-1-1-STW Pressure Switch, open housing, 316SS pressure chamber, one SPDT switch, range 2-15 psi, with SS tag.
SERIES A1F           Low Cost OEM Pressure Switch
Polycarbonate with Conduit Entry
    SS       316 Stainless Steel
SWITCH       1     One SPDT Switch
RANGE         1
  2-15 psi
4-75 psi
8-225 psi
16-450 psi
Stainless Steel Tag Wired

Product Literature


Catalog Pages

Product Data Sheet



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