Its main feature is that it can work in a lubricated or dry medium. The coil feeding creates a magnetic field. This field attracts the disc, which catches the set of interior and exterior laminae, clutching the shaft on which the core is mounted. The power must be supplied by means of a current brush. The following table shows the sizes available with the corresponding torques of the series 4.50 brakes. More technical information is available by downloading the product's datasheet.