Single-pole surge arresters of test class III, combined type. U0 = 230 V AC. Uoc (1,2/50) = 15 kV.
They are installed within II - III lightning protection zones (in accordance with GOST R IEC 62305-1 and SO-153-34.21.122). Designed to protect equipment from residual surge surges for circuits with TNC type grounding system. Visual control of the operating state of the surge arresters is carried out with the help of a green-coloured LED in the thermal release circuit.
For remote control the devices are equipped with a dry contact for remote signalling.
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