The NFA automatic mains field disconnector monitors the circuit and switches off the mains voltage as soon as the last load is switched off. This also switches off the corresponding electric fields. The use of such devices is particularly recommended for bedroom circuits (quiet zones). The NFA U2 is simply connected downstream of the circuit breaker (max. 10A) of the corresponding circuit.

 

The very compact flush-mounted version NFA U2 can be installed in a branch box in the wall and permits an existing circuit to be divided into two parts, one monitored and the other unmonitored. This greatly simplifies installation, particularly in older buildings.