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Instantly add the RS74A-750F Automatic Reset Pressure Switch and 50,000+ more product series to your store or catalog  
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Robinson Controls Automatic Reset Pressure Switch, RS74A-750F

RS74A-750F Automatic Reset Pressure Switch

Brand: Robinson Controls Inc
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Robinson Controls Automatic Reset Pressure Switch, RS74A-750F
Features:
  • Auto reset
  • CSA certified for 398.8° C (750° F) process temperature
  • Set point range psi: 50 to 1,500 (kPa: 345 to 10,340, bar: 3.45 to 103.4)
  • Pressure rating psi: 5,000 (kPa: 34,473, bar: 344.7)
  • Hazardous location Class 1 Division 1
  • External set point adjustment (collar)
  • NACE compliant 2" Male NPT process connection
  • Security car seal (for cover, collar and calibration screw)
  • Dual seal certified

    • Specifications

    Brand

    Ambient Temperature Range

    • -40° to 40° C (-40° to 104° F)
    • T2, T4: -40° to 60° C (-40° to 140° F)

    Approvals & Certifications

    • CRN: 0F10666.2
    • CSA (C,US) C2.2 No E60079-0: 2007
    • IEC

    Approvals & Certifications

    • ANSI/ISA-12.27.01-2003

    Conduit Connection

    • 1/2” NPT Female

    Diaphragm Material

    • Inconel 718

    Electrical Contacts

    • Normally Closed
    • Normally Open

    Electrical Rating

    • 1/2 A at 125 Vdc
    • 1/4 A at 250 Vdc
    • 1/4 hp at 250 Vac
    • 1/8 hp at 125 Vac
    • 15 A at 125/250/480 Vac
    • 2 A at 600 Vac

    Environmental Protection

    • IP54 (Ex d IIB + H₂, Zone 1 AEx d IIB + H₂)
    • Typical 4 (Class I, Div. 1, Groups B, C & D)

    NACE & NIST

    • NACE MR-0175: 2003

    NPT Connection

    • 2” NPT Male

    Pressure Range

    • psi: 50 to 1,500 (345 to 10,340, bar: 3.45 to 103.4)

    Pressure Rating

    • psi: 5,000 (kPa: 34,473, bar: 344.7) - Max.

    Pressure Type

    • Gauge

    Process Connection Material

    • Carbon Steel (SA-193-B7M, Zinc-Plated)
    • Trim Bushing: PTFE (Teflon) Tape or Sealant

    Process Temperature

    • 0° to 400° C (32° to 752° F)

    Ring Material

    • Retaining Ring: 316 Stainless Steel

    Set Point - Decreasing

    • bar: 3.45 to 103.4
    • kPa: 345 to 10,340
    • psi: 50 to 1,500

    Set Point - Increasing

    • bar: 3.45 to 103.4
    • kPa: 345 to 10,340
    • psi: 50 to 1,500

    Switch Type

    • SPDT

    Documentation

    Data Sheets

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