The ABB 1TNA920611R0002 (commonly referred to under the IPD series) is an advanced, microprocessor-based motor control and protection unit. It is designed to provide comprehensive management for low-voltage motors, combining critical protection functions with integrated control logic and communication capabilities. This unit is essential for preventing motor damage due to electrical faults while optimizing operational efficiency through real-time monitoring of motor parameters such as current, temperature, and operating hours.
Product Specifications
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Product ID: 1TNA920611R0002
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Type Designation: IPD (Integrated Protection Device)
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Dimensions: 145 mm x 90 mm x 115 mm
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Weight: 0.85 kg
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Country of Origin: Italy / Germany
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Control Voltage: 110V – 240V AC/DC (Standard Range)
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Current Measurement: Integrated CT (Current Transformer) interface
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Protection Functions: Overload, phase failure, phase unbalance, stalled motor, and earth fault
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Communication Interface: RS485 (Modbus RTU) / PROFIBUS DP options
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Mounting: Standard 35mm DIN Rail
Application Fields
This motor control unit is widely implemented in heavy industries where motor reliability is paramount. Key application fields include water and wastewater treatment plants (for pump control), mining and minerals (for conveyor belts and crushers), oil and gas facilities, and large-scale HVAC systems in commercial infrastructure. It is particularly valued in Motor Control Centers (MCC) for its compact footprint and ability to provide digital feedback to central PLC systems.
Product Instructions
The 1TNA920611R0002 should be mounted within a climate-controlled electrical enclosure to prevent contamination from dust or moisture. During installation, ensure the current transformers are correctly oriented according to the flow of power to the motor. The unit features a set of DIP switches or a digital display interface for setting the rated motor current () and trip class (e.g., Class 10, 20, or 30). Users must verify that the control wiring for the contactor coil is routed through the unit’s output relays to ensure the protection logic can successfully disconnect the motor during a fault condition.
FAQ: Common Questions and Answers
Q: Does this unit support thermal memory? A: Yes. The IPD unit tracks the thermal state of the motor even after a power loss, preventing immediate restarts that could lead to winding insulation failure if the motor is still physically hot.
Q: Can I reset the unit remotely after a trip? A: Resetting can be performed via the front-panel reset button, a dedicated digital input, or through a command sent over the communication network, depending on your specific wiring and configuration.
Q: What is the significance of the “IPD” designation? A: IPD stands for Integrated Protection Device. It signifies that the unit replaces multiple discrete components (overload relays, timers, and ammeters) into a single intelligent module.
Find more technical data and procurement options for the ABB 1TNA920611R0002 to enhance your motor management system.
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