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The fault current protection is intended to prevent damage to the insulation of the installations and direct contact with exposed conductive parts. The fault current protection model A9V41225 has a rated voltage of 240 V, a rated current of 25 A and a leakage current of 30 mA.
The surge arrester protects the voltage in networks and electrical installations in order to reduce the risk of electric shock. The properties are to exclude the time chain less than necessary for damage and damage to the human body and electrical installation.
For proper functioning of the earth leakage protection, the neutral conductor (N) and the protective conductor (PE) must be separate conductors, ie. to have TN-S or TT (three or five-wire) system. After fault protection, the neutral and protective conductors must not be connected anywhere.
