| 摘要 |
In a known arrangement, consumers are connected in the branch to a phase conductor and to a neutral conductor. A switching element is connected upstream of the consumer in order to switch it on and/or off, and additional switching elements, to which a bridging circuit is connected, are provided in the phase conductor and inthe neutral conductor. According to the invention, a single power switch (1) is provided only in the phase conductor (L) and the briding circuit (10) is provided at the load side of the single power switch, at which a magnetically driven switching contact (11) closes a briding current branch (13) that leads to the neutral conductor (N). Preferably, the bridging circuit (10) takes part of the short-circuit current past the magnetic drive (7, 12) and/or the switching contact (11). If required, a resistance (14) whose resistive value lies between 25 and 50 % of the value of the smallest expected load circuit impedance (L2, R2) is arranged in the bridging current branch (13). In such an arrangement, the bridging circuit (10) may advantageously form a single unit together with the power switch (1). |
