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ASCO P Series Pressure Switch

Brand: ASCO

The ASCO Series P pressure switches consist of an open-frame or enclosure-protected switch and a transducer unit.
 
ASCO P Series switches incorporate the unique ASCO TRI-POINT alternating fulcrum balance plate to control the operation of one or more electrical snap-action switches.
 
The pressure switch and transducer unit are fully-tested, self-contained subassemblies.
Features
  • Set point repeatability, ±1% of operating range
  • All wiring terminals, adjustments and visual scales are accessible from the front of the switch
  • Choice of open frame type, general purpose or watertight enclosure
  • Choice of fixed, limited-adjustable or full-range adjustable deadband
  • Choice of single or two-stage units
  • Compact size
  • Mounts in any position
  • Rugged and vibration resistant; e.g., for compressors
  • Visual adjustment scales in psig and bars
  • Wide selection of transducer wetted materials suitable for air, water, oil or corrosive fluids
  • Mix and match switch and transducer components for increased stock flexibility or to change pressure ranges in field

Specifications

Brand

Enclosure, Body Material

  • Stainless Steel

Ambient Temperature

  • -20° to 50° C (-4° to 122° F)

Fluid Temperature

  • -45° to 149° C (-50° to 300° F)

Environmental Protection

  • General-purpose
  • Open Frame
  • Watertight

System Pressure

  • bar: 0 to 620.5
  • kPa: 0 to 62,052
  • psig: 0 to 9,000

NPT Connection

  • 1/2" NPT Female
  • 1/4" NPT Female

Diaphragm Material

  • Buna-N
  • Ethylene Propylene (EPR)
  • Fluorosilicone
  • Neoprene
  • Stainless Steel
  • Viton

Process Connection Material

  • 316 Stainless Steel
  • Aluminum
  • Brass
  • Polyester Nylon

Adjustable Set Point Range

  • psig: 0 to 6,000

Proof Pressure

  • bar: 34.4 to 620.5
  • kPa: 344.7 to 62,052
  • psig: 50 to 9,000

Deadband, Approximate

  • bar: 0.003 to 44.81
  • kPa: 0.34 to 4,481
  • psig: 0.05 to 650

Set Point - Decreasing

  • bar: 0 to 413.68
  • kPa: 0 to 41,368
  • psig: 0 to 6,000

Set Point - Increasing

  • bar: 0 to 413.68
  • kPa: 0 to 41,368
  • psig: 0 to 6,000

Switch Type

  • SPDT

Electrical Rating

  • 1/2 A Res. at 125 Vdc
  • 1/4 A Res. at 250 Vdc
  • 1/4 hp at 250 Vac
  • 1/8 hp at 125 Vac
  • 10 A Res. at 250 Vac
  • 15 A Res. at 125 Vac

Media

  • Air
  • Gas
  • Oil
  • Water
  • Corrosive Fluids

Approvals & Certifications

  • CSA
  • FM
  • UL

Documentation

Data Sheets

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