ABB M102-P MD21 24VDC 1tna920711r0002 Motor Control and Protection Unit

1tna920711r0002

1TNA920711R0002 is a motor protector in ABB's M102 - P series. The following is its relevant introduction:

**Basic Information**: It belongs to the ABB M102 - P motor protector series and can be equipped with the operation panel MD21. The device and DI power supply are 24VDC.

**Functional Features**

- **Overload Protection**: It can monitor the current of the motor in real - time. When the motor operates in an over - load condition, that is, when the current exceeds the rated current for a certain period, the protector will act in a timely manner to cut off the power supply of the motor, preventing the motor from burning out due to long - term over - load.

- **Short - circuit Protection**: It can quickly detect short - circuit faults in the motor circuit. Once a short - circuit occurs, it will cut off the power supply in an extremely short time to avoid serious damage to the motor and other equipment caused by the short - circuit current.

- **Under - voltage Protection**: It monitors the supply voltage of the motor. When the voltage is lower than the set threshold, the protector will act to cut off the power supply, preventing the motor from operating under under - voltage conditions and avoiding problems such as insufficient motor output, severe heating, and even burnout caused by under - voltage.

**Application Fields**: It can be applied to various industrial and commercial environments that require the protection and control of motors, such as production equipment in factories, air - conditioning systems in buildings, water supply and drainage systems, etc., providing reliable protection for the stable operation of motors.

**Product Advantages**

- **Robust and Durable**: It is made of high - quality materials and advanced manufacturing processes, having good mechanical strength and electrical performance, and can operate stably for a long time in harsh working environments.

- **Accurate and Reliable**: By using advanced detection technologies and control algorithms, it can accurately monitor the operating parameters of the motor, promptly detect faults and take protective measures, with high accuracy and reliability of protective actions.

- **Flexible Configuration**: According to different application requirements, parameter setting and function configuration can be carried out through the operation panel MD21 to meet diverse requirements for motor protection and control.