Motori Elettrici Asincroni Trifase MGM Motori KW 0,55 4P B5 IEC71C 3PH 230/400V 50HZ IP54 CLF IE2 BAX MD FRENO AC

BA series consists of three phase, asynchronous brake motors. The brake is activated in case of power supply failure. The brake torque remains the same in both directions of rotation and the motor brakes without shaft axial sliding. As standard the brake is AC 3-phase voltage supply with brake leads connected with motor leads in a single terminal board box, while on request, it is possible to supply the brake separately with a second terminal board or to have a DC brake supply with a built-in rectifier fitted inside the terminal box. The rectifier is provided with over-voltage Protection devices.In the technical data tables, the BA series motors are proposed in the BAX version for continuous duty with IE2 / IE3 efficiency class (compliant with EU regulation 2019/1781), alternatively they can be supplied in the BA 'Enhanced version Power 'only for intermittent service (S3 60%).BA series motors tolerate high overloading rates and are capable of withstanding overheating in such a way that guarantees the best reliability even under tough operating conditions. All MGM series motors have been designed to be controlled by inverters. The motor winding insulation is class F , while class H is available on request. Motor construction type is totally enclosed externally cooled (TEFC) and IP54 enclosure (IP55 on request). For higher Protection degree (IP56-IP65-IP66) we recommend to use the BAH version (see page 56 for more info). Motors up to 132 frame size are fitted as standard with a hexagonal hole on the shaft at the non drive end to allow manual rotation, even if power is off. All BA series motors are provided as standard with hand brake release screw.BA series brake disc has a large lining surface that allows high brake torque, low disc wear and consequently low maintenance cost. The brake torque can be easily adjusted to the desired value just by screwing some nuts. Thanks to its special construction the brake friction surface is self-ventilated on the motor side, permitting a high brake workload and keeping brake time constant. The brake lining material is asbestos free.BA series motor frame is made of die cast, light metal on motors up to 132 size and the terminal board box, provided with cable glands and plugs, is positioned 180° above the motor support feet. The frame is made of cast iron starting from 160 frame size and the terminal box is located on the right side (drive-end view). Shields and flanges are made of aluminium on motors up to 90 frame size, and of cast iron on motors of 100 frame size and above. The brake moving element and the brake coil have a laminated nucleus to reduce electrical losses and to secure a very quick brake intervention.BA series main features are its sturdy construction, quick braking action, constant braking time, high number of permissible start/stop cycles also under severe applications, easily adjustable brake torque, low maintenance costs.