SWITCHING DEVICE AND CONTROL METHOD

A switching device (10) includes: an electronic trip unit (11); an actuator (12); a switching mechanism (13) connected via the actuator (12) to the electronic trip unit (11); a stationary contact; a mobile contact (17), which is coupled to the switching mechanism (13); and an alarm module (24). The alarm module (24) includes: a first, second and third connectors (26-28); a first relay (35) havinga first contact (37) which is connected to the first connector (26) and having a second contact (38) which is connected to the second connector (27); a second relay (36) with a first contact which isconnected to the third connector (28); and a control unit (41) which is coupled on an output side to a control side of the first relay (35) and to a control side of the second relay (36), and on the input side to the electronic trip unit (11). 开关装置(10)包括电子跳闸单元(11)、致动器(12)、通过致动器(12)耦合到电子跳闸单元(11)的开关机构(13)、固定触头、和耦合到开关机构(13)的移动触头(17)。开关装置(10)的警报模块(24)包括第一、第二和第三连接器(26至28)，具有连接至第一连接器(26)的第一触头(37)并且具有连接到第二连接器(27)的第二触头(38)的第一继电器(3