Ashcroft NPI Series NEMA 4 Pressure Switch

The Ashcroft® NPI indicating pressure switch was designed to satisfy challenging applications needing high cycle rates with switch functionality. This design incorporates proven thin film technology to trigger a high quality relay, making this an extremely reliable and long lasting switch. This switch is ideal for use with pressure control, shutdown or alarm operations.

Key Features:

  • Digital Indicating Display
  • Incorporates thin film sensor technology
  • Multi-turn potentiometers allow easy setpoint and deadband adjustments
  • Switch status indication
  • SPDT 10 amp relay


  • Accuracy: ±0.50% full scale
  • NEMA 3, 4, 4X and 13 (IP66); aluminum enclosure
  • Single setpoint
  • Pressure ranges: 60 to 20,000 psi
  • Select process connections
  • Adjustable deadband (as low as 0.5% of full scale)

The NPI indicating pressure switch is ideal where accurate and reliable pressure measurement are essential:

Process Market:                                                                     

  • Pipelines

Industrial Market:

  • Machine Tools
  • Injection Molding Machines
  • Presses
  • Pumps
  • Turbines and Compressors
  • Specialized OEM Equipment

Process Applications:

  • Hydraulic Systems
  • High-Cycling

Please Contact Us for more detail