Mains isolator as a series-mounted device to prevent disruptive alternating electromagnetic fields. After the connected consumers have been manually switched off, the monitored system is switched off. A direct voltage with low residual ripple is used to monitor the system. There is no measurable alternating field and it is nevertheless ensured that the switching on of consumers is detected and the system is switched back on. The mains isolator has a self-learning function, so that it is not necessary to set a threshold value. Connection (max): 6 mm².
