UFC921A101 3BHE024855R0101 is an important interface Board/control board produced by ABB, which is usually referred to as INT-2 board. 

It plays a key role in ABB's various industrial automation systems, especially in medium-voltage frequency converters (such as the ACS2000 series) and excitation systems (such as the UNITROL 5000 series).

Core function: UFC921A101 is an interface board, mainly used to connect and convert signals and data between different devices or systems, achieving effective communication and control.

Signal conversion and processing: It can convert signal formats to meet the requirements of different devices, such as converting one signal format to another. In addition, 

it can also perform necessary processing on signals, such as filtering, amplification or digitization, to enhance signal quality and reliability.

Analog and Digital I/O: This board card typically features multiple input/output channels

8-channel Analog Input: Supports ranges such as 0-10V, 0-20mA, and 4-20mA.

4-channel Analog Output: Supports ranges such as 0-10V, 0-20mA, and 4-20mA.

16-channel Digital Input: Supports 24V DC input voltage.

8-channel Digital Output: Supports 24V DC output voltage.

These rich I/O channels enable it to flexibly connect and exchange data with various field devices and actuators.

Power control and motor electronic control: In the application of frequency converters,

 it is responsible for managing the power supply of the frequency converter and regulating the speed and torque of the motor.

High reliability and durability: As an industrial-grade component, UFC921A101 is made of high-quality materials and through advanced manufacturing processes, 

and is typically Varnished to provide an additional protective layer against moisture, dust, and other contaminants, ensuring long-term stable operation in harsh industrial environments.

Wide range of application fields

ABB ACS2000 series frequency converters: In medium-voltage frequency converters, it serves as a key control circuit board, used to drive and control large motors, achieving precise speed and torque regulation.

UNITROL 5000 Excitation system: It is the Gate Driver Module in the excitation system, used to control the gate of the IGBT power module, 

thereby regulating the terminal voltage and reactive power of the synchronous generator to ensure the stable operation of the power grid.

It is also applied in industries such as water conservancy, building infrastructure, data centers and renewable energy, providing high-performance and flexible solutions.

Recommended products and services

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How to purchase

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We have 121 shared inventories worldwide, with direct procurement from overseas warehouses. We offer favorable prices and after-sales warranty services. 

Our customers come from the United States, Germany, Japan, South Korea, the United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, the Netherlands,

Switzerland, Sweden, Belgium, Austria and Turkey

All products are brand new and original. The warranty period for spare parts is one year and they have been tested and certified.

If you need to order more than one product, please contact us and we can offer you a discount.

If you find that other suppliers offer lower prices for the same products, we are also willing to provide you with further discounts based on the budget.

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