Patent ID: 8581436

Claim:
An actuator system for articles of furniture, said actuator system comprising an actuator, a control box, an operating unit and an off-mains switch, said off-mains switch comprising: an energy input for connection to a mains voltage outlet for supply of a mains voltage, an energy output for mains voltage, a relay means in an electrical connection path between the off-mains switch energy input and the off-mains switch energy output, means for providing a control signal, a control signal receiver for controlling the relay means based on the control signal, a low voltage source, wherein the off-mains switch energy output receives the control signal and forwards the control signal to the control signal receiver, wherein the off-mains switch transfers energy from the low voltage source via an external load connected to the off-mains switch energy output, wherein the off-mains switch includes an external mains transformer with a primary winding, a first pole and a second pole of the primary winding being connected to a first conductor and a second conductor, respectively, on the off-mains switch energy output, and wherein the off-mains switch supplies a low energy supply voltage to the first pole through a first connected set of contacts and performs brief periodic coupling to an earth connection through a second connected set of contacts on the relay means.