HEC 7/8

World’s highest short circuit current capability in SF6 technology

System Type

HEC 7A/8A
HEC 7B/8B
HEC 7C/8C
Rated maximum voltage [kV]:
30
27.5
25.2
Rated frequency [Hz]
50 / 60
50 / 60
50 / 60
Rated power frequency withstand voltage [kV]
80
80
80
Rated lightning impulse withstand voltage [kV]
150
150
150
Rated short-circuit breaking current [kA]
160
190
210
HEC 7/8 with 50 Hz
Rated current [A]: HEC 7
up to 24000
up to 24000
up to 24000
Rated current [A]: HEC 8
up to 28000
up to 28000
up to 28000
HEC 7/8 with 60 Hz
Rated current [A]: HEC 7
up to 22000
up to 22000
up to 22000
Rated current [A]: HEC 8
up to 26000
up to 26000
up to 26000


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    ABB contact for United States of America

    Sales: Jae Lee
    Service: Ernst Steffen
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