Power adapter for electrical installations and especially domestic installations with so-called carrier current control

Claim 1

A power adapter comprising: a power input, a power output adapted to be connected in use to a plurality of power consumption points, means for detecting the current through the power input, means for comparing said current with a threshold, means for successively disconnecting power consumption points of said plurality in a pre-established order when said current is higher than said threshold and then successively re-connecting said disconnected power consumption points in the reverse of said pre-established order when said current is lower than said threshold, programming means for programming said pre-established order and for selectively assigning an erasure permission to at least one power consumption point from said plurality independently of said pre-established order, input means of receiving a signal representing an external condition, erasing means responsive to said signal for selectively disconnecting said at least one power consumption point upon detection of a predetermined condition of said signal, and a transmitting circuit which is responsive to the means for successively disconnecting and to the erasing means, for delivering at the power output control signals to which receiving devices are selectively responsive in order to interrupt or restore the supply of current to at least a predetermined number of power consumption points, said receiving devices being connected in series with said points and upstream of these latter.