Single-phase modular ultrasonic protection devices of test class II of limiting type for networks with earthing system of TN-C, TN-S type. Uo = 120 V AC. Imax(L/PEN) (8/20) = 40 kA.
In(8/20) = 15 kA. With remote signalling. Used for protection of phase conductor in AC systems and poles in DC systems.
They are installed within 1 - 2 lightning protection zones (in accordance with GOST R IEC 62305-1 and CO-153-34.21.122-2003).
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