4) Power Mains Network Decoupler NA7 ( Demand Switch )
Mains voltage automatically activated as long as it is needed! Mounted in the fuse box, it automatically interrupts the mains voltage as soon as the last consumer (e.g. the bedside lamp) is switched off and switches the mains voltage back on automatically and without delay as soon as a consumer is switched on. Eliminate low frequency electric, magnetic field as well as dirty electricity in the affected area. Product with VDE Certification.