Ashcroft NPA-Series NEMA 4 Pressure Switch

Ashcroft NPA-Series NEMA 4 pressure switches are designed for pressure control in harsh applications needing high cycle rates functionality.

CategoryProcess Instrumentation
  • Quoted to your quantity
  • Documentation on request
  • International delivery

Product Overview

Ashcroft NPA-Series NEMA 4 pressure switches are designed for pressure control in harsh applications needing high cycle rates functionality.

The Ashcroft NPA-Series NEMA 4 pressure switch has been designed to be customised as an ideal solution for this type of pressure measurement.

Ashcroft NPA-Series NEMA 4 Pressure Switch – Applications

  • Machine Tools
  • Injection Molding Machines
  • Presses
  • Pumps
  • Turbines and Compressors
  • Specialized OEM Equipment
  • Pipelines
  • Hydraulic Systems
  • High-Cycling

The Ashcroft NPA-Series NEMA 4 is ideal for use with pressure control, shutdown or alarm operations

Ashcroft NPA-Series NEMA 4 Pressure Switch – Features

  • Multi-turn potentiometers allow easy setpoint and deadband adjustments
  • Switch status indication
  • SPDT 10 amp relay

ASHCROFT NPA-SERIES NEMA 4 – How To Order

Here is a typical ordering example for an Ashcroft NPA-Series NEMA 4 pressure switch – for technical support, specification and sales contact our team.

Ashcroft Switch N P A N 4 D L S 0 1 X E A 30 PSI

  • Function : Single setpoint, adjustable deadband (NPA)
  • Enclosure : Watertight NEMA 3, 4, 4X, 13 and IP66 (N4)
  • Output : SPDT Relay 10A, 250 Vac 10A, 30 Vdc (D)
  • Power Requirement: 110 Vac, 50/60Hz. (L)
  • Pressure Port : 1 ⁄8 NPT Male (S01)
  • Pressure Connection : 1⁄4 NPT Male (02)
  • N-Series Options : External setpoint adjustment Consult factory for other options (XEA)
  • Nominal Range Performance Table (psi) : (30 PSI)

Ashcroft

Watch how Ashcroft pressure gauges and temperature instruments protect people in all industries and every environment.

Ashcroft & the Water Industry

Ashcroft gauges monitor pressure in filtration, flow and level applications including pumps, control systems, filters and heat exchangers – providing process pressure measurement for hydrostatic pressure, filter monitoring or regulating flow and deionized water.

Ashcroft Gauges – Instrumentation For Water & Waste Water Treatment Industries

Image : Mott MacDonald

Hazardous Areas

Hazardous area (ATEX & IECEx Certified) flameproof pressure gauges are available for potentially explosive atmospheres – T&D’s CompEX Certificated Sales Team supply worldwide oil, gas and petrochem projects, call us. ➡ Did you know? T&D distribute Water, Gas & Heat Meters from Itron, Elster and Kamstrup : visit our Metering section.

Technical Specifications

CategoryProcess Instrumentation
Ashcroft Model NumberAshcroft NPA-Series NEMA 4
SetpointSingle
Accuracy±0.50% full scale
EnclosureNEMA 3, 4, 4X and 13 (IP66); aluminum enclosure
Pressure Ranges60 to 20,000 psi
Stability±0.5% F.S./year non-cumulative
Durability108 cycles 20/80% F.S. with negligible performance change
Response timeLess than 5m sec
Temperature LimitsStorage –65/+250°F Operating –20/+180°F Compensated –20/+160°F
Output Signal4-20mA (2 wire)
Supply Voltage36 Vdc unregulated

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