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Series 9671X, 9681X, 9692X


Barksdale's explosion proof compact pressure swtiches are ideal for hazardous location hydraulic applications and many of your other industrial control needs. Series 9671X/9681X are available in vacuum and pressure ranges up to 500 psi with a high proof pressure of 1000 psi, and series 9692X is available in pressure ranges up to 10,000 psi with a high proof pressure of 15,000 psi, these pressure switches come with a SPDT or DPDT limit switch. The rugged design provides you with the reliablility you need for your mission critical applications.

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For a compact explosion proof temperature switch, go to our Series T9692X page.



  • Diaphragm Seal Option Available
  • NEMA 4X, 7 & 9
  • Safe to Adjust During Operation
  • Tamper Proof Cover
  • SPDT and DPDT Switch Option
  • NACE Compliant
  • Dual Seal for Div 1 & 2 applications
  • UL, CSA, IECEx and ATEX approved

Technical specifications

General Specifications*

Accuracy: ±2% of full scale
Typical Life: 2.5 million cycles
Switch: SPDT, snap action, simulated DPDT (optional)
Wetted Parts:
Process Fitting:

316 stainless steel
Viton® Diaphragm (9671X & 9681X) Viton® O-ring and Teflon® backup ring (9692X)
Stainless steel (on 9692X)
316 stainless steel
Electrical Connection: 1/2" NPT male conduit connection, 18 AWG, 18" (300 mm) free leads
Electrical Rating: 11 amps @ 125/250VAC 5 amps @ 30 VDC (CC Class)
Enclosure Ratings: NEMA 4X, 7 & 9 (SS); NEMA 4, 7, & 9 (AL)
Pressure Connection: 1/4" NPT female

UL # E37043
CSA # LR22354

CE 0081, LCIE 08 ATEX 6074X, II 2 G, Ex d IIC T6 Gb
IECEx LCIE 17.0001X

UL&CSA approved for use in hazardous locations Class I, Groups A,B,C,& D; Class II, Groups E,F,& G (Group A, UL Only)
Ambient Temperature:

-LT Option: (not UL or CSA)
-4° to +104°F (-20° to +40°C)

-40° F to 149° F (-40°C to +65°C) (Consult factory)
EMI/RFI: EN55011
Vibration: 10g´s 10-500 Hz, MIL-STD-202F
Shock: 50g´s, 11 mS, MIL-S-901C
Adjustment: Internal adjustment wheel with built in locking set-screws (#6). (Loosen set screw #6 at all times when resetting adjustment.)
Shipping Weight: Approximately 1.85 lbs.
* See product confi gurator for additional options.

Wiring Code

9692X/9681X (Pressure) 9671X (Vacuum)
Lead Circuit #1 Circuit #2 Circuit #1 Circuit #2
Normally Open Red Yellow Blue Orange
Common Purple Brown Purple Brown
Normally Closed Blue Orange Red Yellow
Ground Green Green