MH4 Arrester (336 kV Rated, 10955 mm Creep , AA Hardware)
Brand: OHIO BRASS
Catalog ID: MH4420BH336AA
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
MH4420BH336AA
Color
Brown Housing
Material
Porcelain Housing
Mounting Position
Upright
Type
Station
Dimensions
Bolt Circle Diameter
254 mm
Depth
60 in
Diameter - Single Bolt Hole(s)
14 mm
Height
153.6 in
Minimum Mounting Spacing on Center (Sea Level) - Phase to
77.4 in (1966 mm)
Minimum Mounting Spacing on Center (Sea Level)- Phase to Phase
88.2 in (2240 mm)
Width
60 in
Electrical Ratings
Creep and Leakage Distance
431.3 in (10955 mm)
Duty Cycle
336 kV
Frequency Rating
48-62 Hz
Maximum Discharge Voltage
- 695 kV @ 1.5 kA
- 723 kV @ 3 kA
- 748 kV @ 5 kA
- 785 kV @ 10 kA
- 840 kV @ 20 kA
- 925 kV @ 40 kA
Maximum Switching Surge Protective Level @ 1000A
671 kV
Maximum Switching Surge Protective Level @ 2000A
695 kV
Maximum Switching Surge Protective Level @ 500A
652 kV
MCOV
268.8 kV
Minimum Strike
3138 mm
Pressure Relief Capability-Symmetrical rms (kA)
63
Voltage - Line
420 kV
Withstand Voltage - 60 Hz Wet
984 kV
Withstand Voltage - Lightning Impulse
1715 kV
Withstand Voltage - Switching Impulse
1532 kV
Conductor Related
Conductor Type
Cu/Al (AWG #4 - 500 MCM)
Certifications And Compliance
Industry Standard(s)
IEC
Configuration
Mounting Position
Upright