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  7. MH4 Arrester (355 kV Rated, 12828 mm Creep Distance, AA Hardware)

MH4 Arrester (355 kV Rated, 12828 mm Creep Distance, AA Hardware)

by OHIO BRASS 

Catalog ID: MH4550BM444AA

IEC Station High / Class 4 Porcelain Housed Surge Arrester

  • To learn more about selecting the right Substation Arrester, visit our blog here.

    • Product Details

    General

    Application Substation
    Color Brown Housing
    Material Porcelain Housing
    Mounting Position Upright
    Type Station

    Dimensions

    Bolt Circle Diameter 254.00 mm
    Diameter - Single Bolt Hole(s) 14 mm
    Height 4715 mm
    Minimum Mounting Spacing on Center (Sea Level) - Phase to Ground 103.4 in (2627 mm)
    Minimum Mounting Spacing on Center (Sea Level)- Phase to Phase 117.6 in (2986 mm)

    Electrical Ratings

    Creep and Leakage Distance 505 in (12828 mm)
    Duty Cycle 444 kV
    Frequency Rating 48-62 Hz
    MCOV 355.2 kV
    Maximum Discharge Voltage
    • 923 kV @ 1.5 kA
    • 959 kV @ 3 kA
    • 992 kV @ 5 kA
    • 1042 kV @ 10 kA
    • 1115 kV @ 20 kA
    • 1228 kV @ 40 kA
    Maximum Switching Surge Protective Level @ 1000A 890 kV
    Maximum Switching Surge Protective Level @ 2000A 923 kV
    Maximum Switching Surge Protective Level @ 500A 865.0 kV
    Minimum Strike 3760.0 mm
    Pressure Relief Capability-Symmetrical rms (kA) 63
    Voltage - Line 550 kV
    Withstand Voltage - 60 Hz Wet 1176 kV
    Withstand Voltage - Lightning Impulse 2036 kV
    Withstand Voltage - Switching Impulse 1872 kV

    Conductor Related

    Conductor Type Cu/Al (AWG #4 - 500 MCM)

    Certifications and Compliance

    Industry Standard(s) IEC

    Resources/Downloads

    Specifications

      -7 Specification for Hollow Core IEC Station Class Arresters (TD01114E)

    Catalogs

      Station Class Surge Arresters IEEE and IEC (30)

    Videos

    Hubbell Power Systems Metal Oxide Varistor (VI01022E0718)

    Installation/Instruction Manual (IOM)

      Porcelain Hollow Core Station Class Arrester Installation Instructions (17-5092)

    ISO Certificates

      Download All
      ISO 14001:2015 - Hubbell Power Systems Inc.
      ISO 9001:2015 - Hubbell Power Systems Inc. (English)

    Sales Drawings

      MH4550BM444AA (for reference only)