Description
ABB 1TNA920711R0001 M101-P 24VDC Profibus-DP Intelligent Motor Protection Relay
ABB 1TNA920711R0001 is the base unit of ABB M101-P series intelligent motor management relay, powered by 24VDC control supply and equipped with native Profibus-DP fieldbus communication interface, designed for full-range monitoring and multi-protection of three-phase asynchronous motors in low-voltage MCC cabinets. This unit supports complete motor thermal protection, phase loss, phase unbalance, locked rotor, earth fault and startup overcurrent interlock, and can be matched with MD21/MD31 local operator display panel via TA201 connecting cable for on-site parameter setup and real-time data viewing. As a Profibus communication type motor protection spare part different from Modbus version 1TNA920733R0001, M101-P (1TNA920711R0001) realizes high-speed data interaction with PLC/DCS Profibus network, uploads motor operating current, thermal load, fault codes and running status remotely, widely applied in water treatment pumps, industrial fans, compressors, conveying equipment and chemical low-voltage motor control loops.
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Basic Procurement Parameters
- Brand: ABB
- Model PN: 1TNA920711R0001 (M101-P 24VDC base unit, Profibus-DP communication)
- Availability: Original factory sealed new stock, fully calibrated & communication tested refurbished units available
- Delivery Time: 1–4 working days for in-stock inventory; 4–7 weeks for factory backorder shipments
- Guarantee: 12-month full warranty valid from shipment date
- Condition: Brand new unopened OEM / Fully overhauled, Profibus communication and all protection functions bench-tested
- Series: M101-P Intelligent Motor Management Relay (Profibus DP version)
- Rated Control Supply: 24VDC auxiliary power
- Current Measurement Range: Wide adjustable current range for 0.1–82A three-phase motors
- Built-in Protection Functions: Thermal overload image calculation, phase failure, phase unbalance, stall locked rotor, earth leakage, long startup overcurrent, PTC thermistor temperature monitoring
- Fieldbus Interface: RS485 Profibus-DP, slave station communication
- Optional Matching Accessories: MD21/MD31 local display panel, TA201 1.2m connecting cable
- Digital I/O Terminals: Programmable DI interlock input, DO fault signal & trip output
- Local Indication: RUN, FAULT, COMM LED status lights on front panel
- Operating Temperature: -20°C ~ +60°C cabinet ambient
- Storage Temperature: -40°C ~ +85°C
- Humidity Tolerance: 5%–95% RH non-condensing
- Mounting Method: Standard DIN rail mounting inside low-voltage distribution cabinet
- Protection Grade: IP20 front housing, IP00 rear wiring terminals
- Net Weight: 0.36kg
- Certifications: IEC 60947, CE, UL, CCC industrial low-voltage safety certification
Key Features & Advantages
- Native Profibus-DP high-speed industrial bus communication, stable data transmission with ABB AC500, Siemens S7 and other mainstream PLCs, suitable for large centralized DCS monitoring systems
- Full multi-dimensional motor thermal & electrical fault protection logic, real-time thermal image calculation to prevent winding burnout caused by overload, stall or phase loss, extend motor service life significantly
- Modular expandable design, optional MD series local display panel for on-site parameter modification and fault checking, compact DIN rail structure saves cabinet installation space
Industry Application Scenarios
- Water treatment plants: Booster pumps, sewage submersible pump motor protection and Profibus remote centralized monitoring
- HVAC & ventilation systems: Cooling tower fans, boiler induced draft fan low-voltage MCC control cabinets
- Mining & metallurgy workshops: Belt conveyors, crushers, air compressor motor intelligent protection units
- Petrochemical & packaging factories: Process circulation pumps, feeding conveyor motor continuous production monitoring
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