| 摘要 |
A common voltage source (1) is provided, and the control device for connection of several electrical current usage units comprises a component (7) which monitors the connection of a controlling current user, and a relay (11,12) which, dependent upon the monitoring, produce the automatic connection of the other current usage units to the voltage source. - A rectifier (10) is available for the controlling current user feed current, with a light-emitting diode (8) in series with it. A light-sensitive semiconductor changeover component (9), as the result of activation following the light signal from the diode feeds control current to the relay (11,12). This changeover component comprises a triac (9) connected in series with a coil (11) for the relay (12). |
