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The Ashcroft® NPI indicating pressure switch was designed to satisfy challenging applications requiring high cycle life with high current switch functionality. This design incorporates a transducer that uses proven thin film technology to trigger a high quality relay, making this an extremely repeatable, reliable and long lasting switch. This switch is ideal for use with pressure control, shutdown or alarm operations.
Unit of Measure

Specifications

Brands

 N/A Ashcroft®

Accuracy

 N/A ±1% of Full Span

Deadband

 N/A Adjustable

Society of Automotive Engineers (SAE4) Pressure Connection Size

 N/A 7/16-20 SAE-1/4 SAE

Electrical Termination

 N/A 3/4 in. National Pipe Thread (NPT) Female (Standard)

Ambient Temperature Range

 N/A -20 to 160 ºF-29 to 73 ºC

Switch Output

 N/A Single Pole Double Throw (SPDT) 10 amp Relay Optional 4 to 20 mA output (requires isolated 24 Vdc power supply)

Enclosure Ratings

 N/A National Electrical Manufacturers Association (NEMA) 13 National Electrical Manufacturers Association (NEMA) 3 National Electrical Manufacturers Association (NEMA) 4 National Electrical Manufacturers Association (NEMA) 4X Ingress Protection (IP65)

Setpoint Repeatability (Accuracy)

 N/A ± 0.50% Full Scale

Setpoint

 N/A Single Setpoint

Enclosure Material

 N/A Epoxy Coated Aluminum

Diaphragm/Actuator Material

 N/A 17-4PH Stainless Steel

Pressure Connection

Pressure Connection (National Pipe Thread (NPT) Female)

 N/A 1/8 in1/4 in

Pressure Connection (National Pipe Thread (NPT) Male)

 N/A 1/8 in1/4 in1/2 in

Pressure Ranges

Pressure Ranges1 N/A 60 thru 20,000 psi psi

Gauge Function

 N/A Vacuum Pressure

Process Temperature

Process Temperature

 N/A -20 to 160 ºF-29 to 73 ºC

Key Features

Key Features

 N/A
  • Digital Indicating Display
  • Ranges up to 20,000 psi
  • Easy to program setpoint and deadband
  • Incorporates thin film sensor technology which provides repeatability and durability
  • Multi-turn potentiometers allows easy setpoint and deadband adjustments Switch
  • Relay status indication light
  • SPDT 10 amp relay with optional 4 to 20 mA output
  • Designed for high cycle life ≥ 10 million cycles
  • CRN approved

Applications

Applications

 N/A Process Market:
Pipelines
Hydraulic Systems

Industrial Market:
Machine Tools
Injection Molding Machines
Presses
Pumps
Turbines and Compressors
Specialized OEM Equipment
  • 1 Power Requirements 24 Vdc or 120 Vac