Barksdale Pressure Switch 3650-7500 psi


Barksdale pressure switch with 1/2 in male NPT conduit connection on wire end and 1/4 in male NPT on high pressure input end. Can be wired for normally open (N/O) or normally closed (N/C) connections. Decreasing or increasing pressure set point must be selected by the customer (below). Price does not include installation of unit.


Maximum 4 characters

Maximum 4 characters

Customer must select either decreasing pressure set point or increasing pressure set point.


  • Compact size
  • High and low pressures including vacuum
  • Extremely versatile
  • Single pole double throw snap action switching
  • Factory preset or field adjustable


  • Pump and compressor monitoring
  • Air proving in HVAC systems
  • Engine monitoring
  • Machine tools
  • Hydraulic power units
  • Mobile hydraulics
  • Medical equipment
  • Irrigation systems
  • General industial applications


Pressure Range 3650–7550 psi (1.7–10 bar)
Approx. Deadband (Actuation Value) 200–1000 psi (13.79–68.96 bar)
Proof Pressure 12,000 psi (816 bar)
Accuracy ± 2% of full range
Switch Type SPDT snap action; single circuit
Rating 5A @ 125/250 VAC (Class BB microswitch - standard)
5A @ 30 VDC (Class BB and CC microswitches) (No agency)
Electrical Connection 1/2” MNPT conduit connector with 12” free leads, #18 AWG (Standard)
Protection NEMA 4
Pressure Connection 1/4 MNPT
Temperature Range -40° to +165°F (-40° to +74°C)
Adjustment Capacity Field adjustable via an external adjustment sleeve
Weight 1 lb
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