An electrical circuit device includes a semiconductor component which has power terminals and a control terminal electrically insulated from the power terminals, for applying a control voltage, and a control terminal contact surface for contacting the control terminal for measuring the electrical behavior of the semiconductor component. A connection device is provided, via which the control terminal is electrically connectable to a series device, the connection device being transferable from a nonconductive state into a conductive state, in which the control terminal is connected to the series device.