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The residual current protection is designed to protect against damage to the insulation of the installations and direct contact with exposed current-carrying parts. The residual current protection model A9R21240 from the Acti 9 series by Schneider Electric has a rated voltage of 240VAC, a rated current of 40A and a leakage current of 3...
For the proper function of the protection device it is requred for the neutral conductor (N) and protective conductor (PE) to be separate wires, wich means TN-S or TT system (three- or five-wire setup).
