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MH4 Arrester (420 kV Rated, 11622 mm Creep Distance, AA Hardware)

Brand:

OHIO BRASS

Catalog ID:

MH4420BM420AA

IEC Station High / Porcelain Housed Surge Arrester

IEC Porcelain station class arresters for substation protection

  • IEC porcelain Station High class arrester
  • IEEE 693 High Performance Qualification
  • High quality MOV discs made in Wadsworth, Ohio since 1978
  • Arresters assembled in Aiken, South Carolina
  • 100% routine tested

Product details

General

Application

Substation

Catalog Number

MH4420BM420AA

Color

Brown Housing

Material

Porcelain Housing

Mounting Position

Upright

Type

Station

Dimensions

Bolt Circle Diameter

254 mm

Diameter - Single Bolt Hole(s)

14 mm

Height

4067.3 mm

Minimum Mounting Spacing on Center (Sea Level) - Phase to

97.0 in (2463 mm)

Minimum Mounting Spacing on Center (Sea Level)- Phase to Phase

110.3 in (2802 mm)

Electrical Ratings

Creep and Leakage Distance

457.6 in (11622 mm)

Duty Cycle

420 kV

Frequency Rating

48-62 Hz

Maximum Discharge Voltage

  • 866 kV @ 1.5 kA
  • 900 kV @ 3 kA
  • 932 kV @ 5 kA
  • 978 kV @ 10 kA
  • 1047 kV @ 20 kA
  • 1153 kV @ 40 kA

Maximum Switching Surge Protective Level @ 1000A

836 kV

Maximum Switching Surge Protective Level @ 2000A

866 kV

Maximum Switching Surge Protective Level @ 500A

812 kV

MCOV

336 kV

Minimum Strike

3297 mm

Pressure Relief Capability-Symmetrical rms (kA)

63

Voltage - Line

420 kV

Withstand Voltage - 60 Hz Wet

1035 kV

Withstand Voltage - Lightning Impulse

1809 kV

Withstand Voltage - Switching Impulse

1596 kV

Conductor Related

Conductor Type

Cu/Al (AWG #4 - 500 MCM)

Certifications And Compliance

Industry Standard(s)

IEC