Patent ID: 8884569

Claim:
A secure motor starter comprising: a security evaluation unit; a secure switch unit, wherein the secure switch unit includes two switching elements and a fourth interface and is configured to securely control a supply voltage of a consumer, wherein the security evaluation unit comprises a first interface and is configured to transmit a control command to the fourth interface of the secure switch unit via the first interface, and wherein the security evaluation unit is connectable to at least one sensor so that an output of the control command is triggerable by a sensor signal of the sensor present at the security evaluation unit; and a connection module, including a second and third interface, wherein the second interface is electrically conductively connected to the third interface, wherein the connection module is mechanically coupleable to the security evaluation unit and the secure switch unit, wherein the mechanical coupling of the security evaluation unit to the connection module enables an electrically conductive connection to be established between the first and second interface and the mechanical coupling of the secure switch unit to the connection module enables an electrically conductive connection to be established between the third and fourth interface so that, in the coupled state of the security evaluation unit and the secure switch unit to the connection module, there is an electrically conductive connection between the first and fourth interfaces via the connection module and hence the control command is transmitable from the security evaluation unit via the connection module to the secure switch unit, and wherein by way of the control command of the security evaluation unit, at least one switching element of the secure switch unit is controlled at least one of directly and via a processing unit of the secure switch unit so that a supply voltage of a consumer controlled via the switching element of the secure switch unit can be switched off.