| 摘要 |
The invention relates to an apparatus (1) for protecting a load (2) against thermal overloading, and also to a method for the apparatus (1). In order to provide an improved apparatus (1) which is of optimum design, in particular in respect of its thermal loading, it is proposed that the apparatus (1) comprises a first current path, which comprises a first and a second line (101, 102), and a monitoring device for determining the imminent overloading of the electrical load (2), wherein the monitoring device comprises a temperature measurement unit (18), a carrier (15), an evaluation unit (4), a disconnection means (19) and a measurement transducer (10) which establishes an electrically conductive connection between the first and the second line (101, 102) of the first current path, wherein the temperature measurement unit (18) is arranged on the carrier (15) such that it is electrically conductively disconnected from the measurement transducer (10) and can detect a temperature of the measurement transducer (10), wherein the evaluation unit (4) can determine a heating behaviour of the measurement transducer (10) over time by means of detected temperatures of the temperature measurement unit (18) and can determine an imminent overloading on the load (2) by evaluating the determined heating behaviour of the measurement transducer (10) over time, wherein the disconnection means (19) increases the distance between the measurement transducer (10) and the carrier (15) in the event of an imminent overloading of the load (1) which is determined by the evaluation unit (4). |
