MH4 Arrester (120 kV Rated, 3874 mm Creep Distance, AA Hardware)

By OHIO BRASS

Catalog ID: MH4145BH120AA

By OHIO BRASS

Catalog ID: MH4145BH120AA

IEC Station High / Class 4 Porcelain Housed Surge Arrester

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Bolt Circle Diameter	254.00 mm
Diameter - Single Bolt Hole(s)	14 mm
Height	1451.1 mm
Minimum Mounting Spacing on Center (Sea Level) - Phase to Ground	26.6 in (675 mm)
Minimum Mounting Spacing on Center (Sea Level)- Phase to Phase	30.7 in (780 mm)

Creep and Leakage Distance	152.5 in (3874 mm)
Duty Cycle	120 kV
Frequency Rating	48-62 Hz
MCOV	96 kV
Maximum Discharge Voltage	250 kV @ 1.5 kA 260 kV @ 3 kA 269 kV @ 5 kA 282 kV @ 10 kA 302 kV @ 20 kA 333 kV @ 40 kA
Maximum Switching Surge Protective Level @ 1000A	241 kV
Maximum Switching Surge Protective Level @ 2000A	250 kV
Maximum Switching Surge Protective Level @ 500A	235.0 kV
Minimum Strike	1099.0 mm
Pressure Relief Capability-Symmetrical rms (kA)	63
Voltage - Line	145 kV
Withstand Voltage - 60 Hz Wet	345 kV
Withstand Voltage - Lightning Impulse	603 kV
Withstand Voltage - Switching Impulse	532 kV

Conductor Type

Cu/Al (AWG #4 - 500 MCM)

Industry Standard(s)

IEC

Hubbell Power Systems Metal Oxide Varistor (VI01022E0718)

Product Details