Delta Mobrey Sentry P03 Pressure Switch

The Sentry Pressure SwitchSeries offers exceptional performance and high build quality in a simple, safe and cost-effective package. Perormance is assured by repackaging Delta’s well proven sensor technologies in a new, simple, one-piece enclosure. Safety is maintained by a vent that prevents the enclosure becoming pressurized in the event of a sensor being damaged.

Cost is minimised through the selection of common standard options although, as with all Delta products, a variety of optional extras are available to tailor the product to specific needs.

Based on the success of the “Industrial” range of process control instrumentation, Delta Mobrey has developed the “Sentry” range of Pressure Switch, Differential Pressure and Temperature Switches. Designed for general purpose use in OEM equipment and industrial power applications alike, Sentry combines economy, quality and performance.

With a better than 1% set-point repeatability and a market leading 5 year warranty, Sentry offers real value. Users also benefit from a unique hinged lid and single captive screw which provides quick and easy access to terminals and set-point adjustment. The inclusion of a safety vent also protects users by preventing the enclosure becoming pressurised in the event that the sensor is inadvertently damaged by excessive pressure.

Key Features

  • SPDT & DPDT Switch Outputs
  • Aluminium Epoxy Coated Flameproof Enclosure IP66/NEMA4X
  • ATEX / IECEx Flameproof & Intrinsically Safe
  • 316 Stainless Steel Wetted Parts as Standard.
  • Field Adjustable Set-points Against a Reference Scale
  • Pressure Ranges up to 700bar (10,000psi)
  • Maximum Working Pressure up to 1000bar (15,000psi)
  • Safety Vented Design as Standard
  • Suitable for use SIL 2 safety related systems

Product applications

The Sentry Series is suitable for a wide range of applications in:

  • Process plants
  • OEM equipment

The choice of models available ensures that the Sentry Series is suitable for use in:

  • General purpose
  • Zone 0 & 20 Hazardous Areas
  • Zone 1 & 21 Hazardous Areas
  • SIL 2 safety related systems


  • Screwed lid and integral terminal block

    A screwed lid gives the users quick access for connecting to the integral terminal block or for set-point adjustment.

  • Better than 1% set-point repeatability

    Users can expect a set-point repeatability performance better than 1% on all configurations with some configurations being significantly better

  • 5 year warranty

    A market leading 5 year warranty gives users peace of mind

  • Safety

    Pressure Switch models come with a safety vent to prevent the enclosure becoming pressurized in the event that the sensor is inadvertently damaged by excessive pressure. In addition, the complete Sentry family has been assessed for use in SIL 2 safety related systems

Another Article:


  • Robust weatherproof, epoxy coated, aluminium housing approved to IP66 and NEMA 4X
  • SPDT and DPDT switch contacts with environmentally and hermetically sealed options
  • Stainless steel wetted parts as standard
  • Better than 1% set-point repeatability
  • Market leading 5 year warranty
  • Pressure ranges from 0.4 to 700 bar (4 to 1500 psi)
  • Pmax up to 1000 bar depending on range

Download Data Sheet pressure switch P0 Series


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