DEVICE FOR CONNECTING TO A POWER NETWORK AND METHOD FOR PROTECTING SUCH A DEVICE

摘要

The invention relates to a device (1) for connecting to a power network (10), said device having a circuit board (2), a first input-side connection point (21), to which a first phase (11) of the power network (10) can be connected, a second input-side connection point (22), to which a second phase (12) of the power network (10) can be connected, and a first and second electrical conductor (3, 4), wherein the first conductor (3) is connected to the first input-side connection point (21) and the second conductor (4) is connected to the second input-side connection point (22) inside the device. In order to provide a device (1) which is as compact as possible and permits as high a short-circuit current as possible, the first conductor (3) is routed as a conductor trace (32) in an interior layer of the circuit board (2) and has a constriction (30) there, the constriction (30) of the first conductor (3) being formed and the second conductor (4) being routed past said constriction (30) in such a manner that electrical insulation existing between the constriction (30) of the first conductor (3) and the second conductor (4) is destroyed in the case of a short-circuit current via the first conductor (3), and therefore an electrically conductive connection between the first and second conductor (3, 4) exists.