There is provided a railcar including a under frame, paired side bodyshell parts, and a roof bodyshell part. Three options are designed for manipulating the current coming out of the current control unit; a direct wired wall control switch, or a wireless remote controlling using infra-red design or an automatic speed control using a speed detecting sensor. The reference input corresponds to a desired value of the measurement signal current and the electrical current controller is suppliable with a primary feedback signal.