electromagnetic disc brake, BMG2: Indicates the specific size or size of the brake within the BMG series. BMG brakes are commonly used on SEW engines of the sizes DT90 and DT100., HF: It stands for "High Frequency", which implies that the brake is designed for applications that require a high number of braking interventions (cycles) per hour., 5NM: It represents the Nominal braking torque (5 Newton meters)., 400VWS: Indicates electrical power requirements. The tension is 400 Volts AC (Alternating Current), where "WS" stands for a specific type of connection or rectifier (likely intended to work with a built-in or external SEW BG rectifier that converts AC to DC for the brake coil)