Single-phase modular ultrasonic protection devices of class II combined type for networks with earthing system of TN-S type. Uo = 120 V AC. Imax(L/N, N/PE) (8/20) = 40 kA.
In(8/20) = 15 kA. With remote signalling. They are used for protection of phase and neutral conductors.
They are installed within 1 - 2 zones of lightning protection (in accordance with GOST R IEC 62305-1 and CO-153-34.21.122-2003).
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