MH4 Arrester (420 kV Rated, 11622 mm Creep , AA Hardware)
Brand: OHIO BRASS
Catalog ID: MH4420BM420AA
IEC Station High / High Quality Porcelain Housed Hollow Core Surge Arrester
- 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
General
Application
Substation
Catalog Number
MH4420BM420AA
Color
Brown Housing
Material
Porcelain Housing
Mounting Position
Upright
Product Type
MH4
Type
Station
Dimensions
Bolt Circle Diameter
254 mm
Depth
39 in
Diameter - Single Bolt Hole(s)
14 mm
Height
160.1 in
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)
Width
39 in
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
Configuration
Mounting Position
Upright