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ABB M102-M Modbus Motor Control and Protection Unit

ABB M102-M Modbus Motor Control and Protection Unit

Item NO.: 3742395
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Condition : brand new in factory sealed box


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Detail

  • Product NameABB M102-M Modbus Motor Control and Protection Unit
  • Item NO.3742395
  • Weight1.0000 kg = 2.2046 lb = 35.2740 oz
  • CategoryDCS
  • BrandABB
  • Creation Time2026-08-20
  • ABB M102-M Modbus Motor Control and Protection Unit
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ABB M102-M Modbus Motor Control and Protection Unit

ManufacturerABBModelM102-MProduct TypeModbus Motor Control and Protection Unit

01Product Identification

ABB M102-M is an M10x motor control and protection unit with Modbus RTU communication. The documented current range is 0.24...63 A. M102 adds voltage-related parameter monitoring and protection functions and is supplied in separate digital-input voltage variants, so the complete order code must be verified.

Configuration Control

Match the complete model, ratings, ordered variant, installed system, connections, and protection requirements before ordering.

02Key Features

  • Motor control and protection across the documented 0.24...63 A range.
  • Modbus RTU communication for the M102-M version.
  • Voltage-related parameter monitoring and protection functions.
  • Supports multiple drive-control arrangements documented for the M102 platform.
  • Separate 24 V DC, 110 V AC, and 240 V AC digital-input versions.
  • Works with an MD21 or MD31 operator panel for local access and parameterization.

03Engineering Data

Manufacturer ABB
Model M102-M
Product Family M10x
Product Category Motor control and protection unit
Communication Modbus RTU
Current Range 0.24...63 A
Digital-Input Voltage Variants 24 V DC, 110 V AC, or 240 V AC
24 V DC Order Code 1TNA920611R0002
110 V AC Order Code 1TNA920622R0002
240 V AC Order Code 1TNA920633R0002
Operator Panel Requirement One MD21 or MD31 operator panel
Voltage-Related Monitoring Provided by M102 variants

04System Integration

Integration Checklist

  • Select the order code that matches the installed digital-input voltage; the base model alone is insufficient.
  • M102-M is the Modbus RTU variant, while M102-P is the PROFIBUS version and must not be substituted without a system redesign.
  • The M10x system requires a compatible MD21 or MD31 operator panel and the appropriate connection cable.
  • Confirm the current-transformer arrangement, motor current, drive type, I/O wiring, communication address, and parameter set before commissioning.

Verified Identity

Model: M102-M

Type: Modbus Motor Control and Protection Unit

Manufacturer: ABB

05Applications

  • Direct-on-line and reversing direct-on-line motor control.
  • Star-delta, two-speed, Dahlander, autotransformer, and soft-starter drive arrangements documented for M102.
  • Actuator and feeder control using supported M10x configurations.
  • Motor protection systems requiring Modbus RTU communication and voltage-related monitoring.

06Lifecycle

  • Record the exact M102-M order code and digital-input voltage before sourcing a replacement.
  • Back up motor, protection, communication, and drive-logic parameters before removing the installed unit.
  • Verify the operator panel, connection cable, current-transformer configuration, and control supply.
  • Do not copy settings from another motor feeder unless the motor, drive type, and protection study are identical.
  • After replacement, test local and remote control, Modbus communication, trips, alarms, and interlocks before returning the motor to service.

FAQFrequently Asked Questions

What communication protocol does M102-M use?

The M102-M version uses Modbus RTU.

What current range is documented?

ABB lists a 0.24...63 A current range.

Which digital-input voltage versions are available?

The ordering guide lists 24 V DC, 110 V AC, and 240 V AC variants.

Does M102-M require an operator panel?

Yes. ABB states that each M10x unit requires one MD21 or MD31 operator panel.

What distinguishes M102 from M101?

The ordering guide states that voltage-related parameter monitoring and protection functions are provided with M102.

Can M102-P replace M102-M directly?

Not as a direct communication replacement. M102-M uses Modbus RTU, while M102-P is the PROFIBUS version.

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