ABB M3AA112MB2HO 3GAA11102-BDE331 13411389-1/02 Three-Phase Low Voltage Motor for Industrial Drive and Process Applications

ABB documentation for a corresponding M3AA 112 MB 2 configuration identifies a 5.5 kW rated output, 50 Hz frequency, approximately 2870 r/min operating speed, insulation class F and IP55 enclosure protection. A detailed ABB type test report for the M3AA 112 MB 2 configuration records 230 V delta and 400 V star connections at 50 Hz. :contentReference[oaicite:1]{index=1}

Product Identification

• Manufacturer: ABB
• Motor Family: M3AA
• Motor Type: M3AA 112 MB 2
• Primary Identification: M3AA112MB2HO
• Additional Reference: 3GAA11102-BDE331
• Additional Reference: 13411389-1/02
• Motor Type: Three-Phase AC Motor
• Frame Size: 112
• Construction: Aluminium Frame
• Number of Poles: 2
• Rated Output: 5.5 kW
• Frequency: 50 Hz
• Typical Speed: Approximately 2870 r/min
• Protection: IP55
• Insulation Class: F
• Duty: S1

ABB M3AA 112 MB 2 Motor Design

The M3AA 112 MB 2 designation provides an important technical reference for the motor’s construction. The M3AA family is an IEC-style low-voltage motor range, while the 112 designation identifies the frame-size category. The MB designation identifies the relevant frame-length arrangement and the final 2 indicates the two-pole configuration.

The two-pole design is intended for applications requiring relatively high rotational speed from a standard three-phase motor. At 50 Hz, the corresponding M3AA 112 MB 2 configuration operates at approximately 2870 r/min under rated operating conditions according to ABB test documentation. :contentReference[oaicite:2]{index=2}

Rated Power

The referenced ABB M3AA 112 MB 2 motor is rated at 5.5 kW. Rated output power describes the mechanical power available at the motor shaft under the specified operating conditions.

The 5.5 kW rating should be evaluated together with voltage, frequency, current, speed, power factor, duty cycle and mechanical load when selecting the motor for a particular machine.

ABB documentation for the corresponding tested configuration records 5.50 kW output at 400 V, 50 Hz and approximately 2871 r/min during the thermal test. :contentReference[oaicite:3]{index=3}

Three-Phase Electrical Configuration

The M3AA112MB2HO belongs to the three-phase AC motor category. ABB test documentation for the corresponding M3AA 112 MB 2 configuration specifies 230 V delta and 400 V star connections at 50 Hz.

The documented rated current is 18.10 A at 230 V delta and 10.50 A at 400 V star for the referenced configuration. The exact electrical connection must always correspond to the motor nameplate and the supply system. :contentReference[oaicite:4]{index=4}

The terminal arrangement should therefore be checked before connection rather than assuming a particular star or delta configuration from the motor family designation alone.

Operating Speed

The M3AA 112 MB 2 is a two-pole motor intended for high-speed operation compared with four-pole or six-pole motors of similar frame sizes.

ABB’s test data records a no-load speed of approximately 3000 r/min and a rated-load speed of approximately 2871 r/min for the 5.5 kW, 400 V, 50 Hz tested configuration. :contentReference[oaicite:5]{index=5}

The difference between synchronous speed and actual shaft speed is related to motor slip. Actual operating speed can vary according to load, voltage, frequency and operating conditions.

Efficiency and Power Factor

The referenced ABB test report records a power factor of approximately 0.87 for the M3AA 112 MB 2 configuration. It also records efficiency values at different load points, including approximately 86.4% at full load for the 50 Hz test configuration. :contentReference[oaicite:6]{index=6}

Efficiency and power factor are important when evaluating the motor within an industrial electrical system. They affect input current, electrical consumption and the sizing of associated electrical equipment.

The exact efficiency classification and values should be taken from the nameplate and documentation corresponding to the specific motor configuration.

IP55 Enclosure Protection

ABB documentation for the referenced M3AA 112 MB 2 configuration identifies IP55 protection. The IP rating describes the enclosure’s resistance to the ingress of solid particles and water under the conditions defined by the applicable protection standard.

IP55 is commonly used for industrial motor installations where protection against dust ingress and water jets is required within the limits of the rating.

The enclosure rating does not mean that the motor can be installed without considering the surrounding environment. Ambient temperature, humidity, chemical exposure, mounting orientation and ventilation requirements should still be evaluated.

Insulation Class F

The referenced M3AA 112 MB 2 configuration uses insulation class F. Motor insulation class establishes a thermal classification for the winding insulation system.

The insulation system is an important factor in determining the motor’s permissible thermal operating conditions. ABB’s corresponding type test documentation identifies insulation class F for the tested motor configuration. :contentReference[oaicite:7]{index=7}

Actual temperature rise, ambient temperature and application conditions remain important when determining the appropriate operating conditions.

S1 Continuous Duty

The ABB test documentation identifies S1 duty for the referenced M3AA 112 MB 2 motor. S1 is continuous duty, meaning the motor is designed for operation at a constant load for sufficient time to reach thermal equilibrium under the specified conditions.

This duty classification is useful when matching the motor to pumps, fans, compressors, conveyors and other equipment that operate continuously.

If the driven machine uses frequent starts, stops, braking cycles or significant load changes, the complete duty cycle should be evaluated rather than relying only on the S1 classification.

Aluminium Motor Frame

The M3AA series uses aluminium-frame construction in the relevant frame-size range. Aluminium construction provides a relatively compact motor housing while supporting the mechanical and thermal requirements of the motor design.

The frame also provides the mounting interface between the motor and the driven machine. Mounting dimensions, shaft dimensions, foot-hole positions and other mechanical parameters should be checked against the specific motor documentation before installation.

Thermal Characteristics

Motor temperature is affected by load, ambient temperature, ventilation, installation position and operating frequency. ABB’s test report for the corresponding M3AA 112 MB 2 configuration records a thermal test at 100% load.

The test data includes measured temperature-rise information for the stator winding, frame and drive-end bearing. Such measurements are part of the motor qualification process and provide information about thermal behavior under the specified test conditions. :contentReference[oaicite:8]{index=8}

Motor Applications

A 5.5 kW, two-pole three-phase motor can be used in many industrial drive applications where a relatively high rotational speed is required.

Typical machine categories can include fans, pumps, blowers, compressors, process equipment and other mechanically driven systems. The suitability of the motor depends on the torque-speed characteristics of the driven equipment.

The motor should be selected according to the complete mechanical load profile, including starting torque, running torque, acceleration requirements and operating speed.

Compatibility with Industrial Drive Systems

The M3AA motor can form part of an industrial drive system in which an AC motor is supplied directly from the electrical network or controlled by a compatible variable-frequency drive.

When a frequency converter is used, the motor’s voltage, current, insulation characteristics, cooling method and permissible speed range should be evaluated according to the applicable ABB motor documentation.

Converter operation may introduce additional electrical and thermal considerations compared with direct-on-line operation.

Technical Specification Summary

Mechanical Installation

Mechanical installation requires correct alignment between the motor shaft and driven equipment. Couplings, belts, pulleys or other transmission components should be selected according to the motor’s shaft dimensions and the requirements of the driven machine.

Misalignment can increase bearing loads, vibration and mechanical stress. Proper mounting also helps maintain the intended cooling and ventilation conditions.

The complete mechanical drawing should be consulted when dimensional compatibility is critical.

Electrical Protection

The motor should be integrated with suitable electrical protection according to the supply system and application. Protection can include short-circuit protection, overload protection and appropriate motor switching equipment.

The rated current should be taken from the motor nameplate for the actual configuration. The 18.10 A and 10.50 A values documented for the corresponding ABB test configuration demonstrate the difference between the 230 V delta and 400 V star connections. :contentReference[oaicite:9]{index=9}

Protective-device selection should account for starting current and the characteristics of the connected load.

Motor Starting

Three-phase induction motors can draw substantially higher current during starting than during steady-state operation. The starting method therefore influences the electrical installation and the required protection.

Depending on the application, the M3AA motor may be integrated into direct-on-line, star-delta or variable-frequency drive systems when the motor configuration and application permit.

The selected starting method must be compatible with the motor’s rated voltage, terminal configuration and driven equipment.

Reference Identification

The complete identification provided for this motor is ABB M3AA112MB2HO, with the additional references 3GAA11102-BDE331 and 13411389-1/02.

These references should be retained together in equipment records because different identifiers can appear on motor nameplates, purchase documentation, engineering records or replacement references.

The M3AA 112 MB 2 designation is particularly useful for establishing the general motor family and mechanical/electrical configuration, while the complete reference should be used when determining an exact match.

Maintenance Considerations

Routine motor maintenance can include inspection of electrical connections, mechanical mounting, shaft coupling, bearings, cooling passages and surrounding installation conditions.

The motor should be monitored for abnormal vibration, excessive temperature, unusual noise and changes in operating current. These conditions can indicate mechanical loading problems, bearing issues, ventilation restrictions or electrical abnormalities.

Maintenance records should use the full motor identification rather than relying only on the M3AA family name.

Application Selection

When evaluating ABB M3AA112MB2HO for a particular machine, the main selection factors include rated power, voltage, frequency, speed, torque, duty, enclosure protection, mounting dimensions and environmental conditions.

For the referenced M3AA 112 MB 2 configuration, the 5.5 kW output and approximately 2870 r/min speed provide a useful starting point for mechanical matching. However, the actual load torque and acceleration requirements must be compared with the motor’s complete performance characteristics.

Technical Documentation and Verification

ABB documentation contains several M3AA 112 MB 2 configurations with different product-code suffixes and electrical characteristics. For example, ABB publishes separate documentation for M3AA 112 MB 2 motors with different rated power, voltage and efficiency configurations. :contentReference[oaicite:10]{index=10}

For this reason, the exact references supplied with the motor should not be replaced by a generic M3AA 112 MB 2 description when technical compatibility is important.

The nameplate remains the primary source for confirming the exact voltage, current, frequency, power, speed and connection arrangement of the individual motor.

Conclusion

ABB M3AA112MB2HO, associated with references 3GAA11102-BDE331 and 13411389-1/02, belongs to the ABB M3AA family of three-phase low-voltage motors. The corresponding M3AA 112 MB 2 configuration is a two-pole aluminium-frame motor with a 5.5 kW rated output, approximately 2870 r/min speed at 50 Hz, IP55 protection, insulation class F and S1 continuous-duty characteristics. :contentReference[oaicite:11]{index=11}

ABB test documentation for the corresponding configuration records 230 V delta and 400 V star operation, with rated currents of 18.10 A and 10.50 A respectively, together with a power factor of approximately 0.87. These values provide useful technical references for identifying the motor, but the actual nameplate should be used when confirming the electrical parameters of a specific unit. :contentReference[oaicite:12]{index=12}

For equipment databases, technical records and compatibility evaluation, the complete identification should be maintained as ABB M3AA112MB2HO, 3GAA11102-BDE331 and 13411389-1/02. The full reference is preferable to using only the general M3AA 112 MB 2 designation because ABB offers multiple configurations within this motor family.