MH4 Arrester (355 kV Rated, 12828 mm Creep , AA Hardware)
Brand: OHIO BRASS
Catalog ID: MH4550BM444AA
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
MH4550BM444AA
Color
Brown Housing
Material
Porcelain Housing
Mounting Position
Upright
Product Type
MH4
Type
Station
Dimensions
Bolt Circle Diameter
254 mm
Depth
60 in
Diameter - Single Bolt Hole(s)
14 mm
Height
185.6 in
Minimum Mounting Spacing on Center (Sea Level) - Phase to
103.4 in (2627 mm)
Minimum Mounting Spacing on Center (Sea Level)- Phase to Phase
117.6 in (2986 mm)
Width
60 in
Electrical Ratings
Creep and Leakage Distance
505 in (12828 mm)
Duty Cycle
444 kV
Frequency Rating
48-62 Hz
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 kV
MCOV
355.2 kV
Minimum Strike
3760 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
Configuration
Mounting Position
Upright