Single-phase surge arresters of test class I+II combined type for networks with earthing systems of TN-S, TT and IT types. Uo=230 V AC.
Iimp(L/N) (10/350) = 12 kA. Iimp(N/PE) (10/350) = 20 kA.
Imax(8/20) = 90 kA. They are installed within 0A(V) - 1 lightning protection zones (in accordance with GOST R IEC 62305-1 and CO-153-34.21.122-2003).
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