Motor Designation

BM, BA56 - 225 mm0.04 - 45 kW2 4 6 8 2 - 4 4 - 8 2 - 62 - 8 4 - 6 4 - 12 polesSee mounting sectionAccording to customer requestAC or DC example: BA example: 71 SeriesFrame size Power and polesMountingVoltage and frequencyBrake supplyInsulation classEnclosure The following technical characteristics are used to correctly identify MGM motors: example: 0.37 kW 4 poles or B 4 (see technical data)example:
1 IM B5 example: 230/400V 50 Hz
2 example: AC brake coil, double terminal board box for separate brake supplyexample:
GENERAL CHARACTERISTICS class F
3 3 example: IP 54 Single or double terminal board box
4 4 F or HIP54, IP55, IP56 It is necessary to indicate any special features or options not supplied as standard (see page 59), such as reduced diameterflanges, thermal protectors, tropical environment execution, etc. Unless otherwise specified, the brake supply voltage is the same as the motor voltage. Unless otherwise specified, the DC brake voltage supply is 230V 50/60 Hz.
1 The BM, BA series are also available in the versions BMPV, BAPV with soft start and stop suitable for traversing, and the versionBMSV, BASV with forced cooling fan. The BA series is also available in the version BAF, with double brake disc and premium braketorque.In two speed motors, the model number is followed by the letter D on motors with Dahlander winding, and by the letters DA onmotors incorporating two separate windings (i.e. BADA 71 B 2/8).BA series motors are available with both DC and AC industrial brakes while BM series motors are available with only DC brakes. DC brakemotors with power supply higher than 24 Volts have as standard a rectifier with emission suppression.Single speed motors can be provided with a single terminal board box with the motor and brake power terminals connected inparallel, or with a double terminal board, having the motor supplied separately from the brake. Unless otherwise specified, singlespeed motors up to 112 frame size are provided with just one terminal board. Motors with frame size 132 and above are provided as standard feature with a double terminal board box. On two speed motors, the motor power supply is always separate from the brake power supply. On single speed motors with separate brake power supply a double terminal board box has to be provided. A double terminal board box also has to be provided on motors with the following options or auxiliary devices: thermo protectors,thermistors (PTC), standstill heaters, forced cooling, IP 56 enclosure, Emi filters, DC brake with brake power supply higher than254V, brake voltage different from motor voltage, motor voltage 400/690V 50Hz, encoder, microswitch, side terminal box.
2 3 4 Example BA 71 B4, 230/400V 50 Hz, class F, IP 54, IM B5, AC brake coil, double terminal board box.
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