ABB M102-P 1TNA920711R3002 Intelligent Motor Protection and Control Unit

 ABB M102-P, Order Number: 1TNA920711R3002
M102-P Intelligent Motor Protection and Control Unit (Motor Management Unit MMU/MCC Motor Protector)
 P stands for Profibus-DP communication; -P: Profibus-DPV1; -M: Modbus-RTU

Order Number Interpretation: 1TNA920711R3002 Table

| Code Segment | Explanation 
| M102-P | Main unit, built-in CT, Profibus-DPV1 bus, supports voltage acquisition (M102 differs from M101 by including voltage measurement) |
| 1TNA920711R3002 | Complete part number |
| 3 | Auxiliary power supply **240VAC, digital input DI at 240VAC level |
| 002 | Complete set including **MD31 door-mounted LCD operation panel** + TA201 communication cable 
| Current range | Built-in transformer CT: 0.24 – 63A directly connected to the motor circuit**; for currents greater than 63A, select M102-M external CT version 

List of Protective Functions

– Thermal overload protection, stator overcurrent protection, phase loss, three-phase imbalance, grounding fault protection
– Startup limit count, startup timeout, PTC overheat trip
– Thermal memory function, retains motor heat accumulation upon power loss; complete fault event log recording

Motor Control Modes

Direct start DOL, forward/reverse rotation, star-delta, dual-speed motor and other various startup logic, supports local panel / remote PLC dual control.