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MH4 Arrester (336 kV Rated, 9621 mm Creep Distance, AA Hardware)

by OHIO BRASS 

Catalog ID: MH4420GM336AA

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 Gray Housing
    Material Porcelain Housing
    Mounting Position Upright
    Type Station

    Dimensions

    Bolt Circle Diameter 254.00 mm
    Diameter - Single Bolt Hole(s) 14 mm
    Height 3572 mm
    Minimum Mounting Spacing on Center (Sea Level) - Phase to Ground 77.9 in (1978 mm)
    Minimum Mounting Spacing on Center (Sea Level)- Phase to Phase 88.7 in (2253 mm)

    Electrical Ratings

    Creep and Leakage Distance 378.8 in (9621 mm)
    Duty Cycle 336 kV
    Frequency Rating 48-62 Hz
    MCOV 268.8 kV
    Maximum Discharge Voltage
    • 699 kV @ 1.5 kA
    • 726 kV @ 3 kA
    • 752 kV @ 5 kA
    • 789 kV @ 10 kA
    • 845 kV @ 20 kA
    • 930 kV @ 40 kA
    Maximum Switching Surge Protective Level @ 1000A 674 kV
    Maximum Switching Surge Protective Level @ 2000A 699 kV
    Maximum Switching Surge Protective Level @ 500A 655.0 kV
    Minimum Strike 2820.0 mm
    Pressure Relief Capability-Symmetrical rms (kA) 63
    Voltage - Line 420 kV
    Withstand Voltage - 60 Hz Wet 882 kV
    Withstand Voltage - Lightning Impulse 1527 kV
    Withstand Voltage - Switching Impulse 1404 kV

    Conductor Related

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

    Certifications and Compliance

    Industry Standard(s) IEC

    Resources/Downloads

    Videos

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