Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The ABB TU891 (3BSC840157R1) is a versatile and high-performance product that serves a variety of applications in industrial automation and control systems. As part of ABB’s range of products, the TU891 module is designed to offer efficient, reliable, and robust performance for different industrial needs, especially in automation, control, and monitoring systems. This product is an essential part of the company’s extensive product line designed to improve process optimization and reliability.
| Parameter | Value |
|---|---|
| Product Name | ABB TU891 (3BSC840157R1) |
| Series | ABB TU Series |
| Weight | 1.2 kg |
| Dimensions (LxWxH) | 120 mm x 90 mm x 45 mm |
| Power Supply | 24 V DC |
| Current Consumption | 100 mA |
| Operating Temperature | -10 °C to 60 °C |
| Storage Temperature | -40 °C to 85 °C |
| Mounting | DIN Rail |
| Communication Protocol | Modbus TCP/IP |
| Housing | Polycarbonate |
The ABB TU891 (3BSC840157R1) is a communication interface module designed to support modern industrial control systems. This product is part of the ABB TU series, which is a highly flexible and scalable product range. It provides seamless communication between control systems and remote I/O systems, enhancing overall system performance. The TU891 can be used in various automation systems to manage inputs and outputs effectively, ensuring smooth operation across the entire system.
The TU891 is ideal for industries such as:
Manufacturing Automation: Facilitating communication between PLCs and field devices for real-time control and data exchange.
Process Control: Enabling smooth control and monitoring of industrial processes.
Energy Management: Collecting and transmitting data from energy meters to control systems for efficient power management.
Building Automation: Used in building management systems (BMS) for controlling HVAC, lighting, and security systems.
Industrial Equipment: Integration in complex machinery for real-time monitoring and adjustments.
Reliability: High operational stability ensures continuous, uninterrupted functionality.
Versatility: Compatible with various communication protocols, which makes it adaptable to different system requirements.
Easy Integration: Simple to install and configure, reducing setup times.
Energy Efficient: Designed to optimize energy consumption while maintaining performance.
Durability: Built with durable materials, ensuring a long product lifespan in demanding environments.
Brand: ABB
Series: ABB TU Series
| Model | Key Specifications |
|---|---|
| TU892 (3BSC840158R1) | Communication module, 24 V DC, Modbus TCP/IP, 1.5 kg, 140 mm x 100 mm x 50 mm |
| TU890 (3BSC840156R1) | Analog I/O module, 24 V DC, 2.0 kg, 150 mm x 120 mm x 60 mm |
| TU894 (3BSC840159R1) | Digital I/O module, 24 V DC, 1.4 kg, 130 mm x 110 mm x 55 mm |
| TU896 (3BSC840160R1) | Communication interface, Modbus, 24 V DC, 1.6 kg, 160 mm x 130 mm x 65 mm |
| TU895 (3BSC840161R1) | Analog/Digital I/O, Modbus, 1.8 kg, 135 mm x 115 mm x 50 mm |
| Model | Key Specifications |
|---|---|
| IRB 6700 | 6-axis industrial robot, 50 kg payload, 3.2 m reach, 3200 mm/s speed |
| AC500 | Modular PLC, 24 V DC, supports Ethernet/IP, PROFIBUS, CANopen |
| PM810 | Power meter, 24 V DC, 60 mm x 80 mm x 100 mm, 0.5 kg |
| A60 | Low-voltage switchgear, 690 V, 50 A, 4000 A, 6 kA short circuit |
| AF50 | Circuit breaker, 50 A, 1-3 pole, 400 V AC, 80 mm x 50 mm x 40 mm |
Q1: What is the primary function of the ABB TU891?
A1: The ABB TU891 is a communication interface module used in industrial automation systems to enable seamless communication between controllers and field devices via Modbus TCP/IP.
Q2: How is the TU891 mounted in a system?
A2: The TU891 is designed for DIN rail mounting, which allows for easy installation and integration into control cabinets.
Q3: What is the operating temperature range for the ABB TU891?
A3: The operating temperature range for the TU891 is from -10°C to 60°C, making it suitable for most industrial environments.
Q4: Can the ABB TU891 support multiple communication protocols?
A4: Yes, the TU891 supports Modbus TCP/IP, ensuring compatibility with various systems and networks.
Q5: What is the power supply requirement for the TU891?
A5: The ABB TU891 requires a 24 V DC power supply for proper operation.
Q6: What are the dimensions of the ABB TU891?
A6: The dimensions of the TU891 are 120 mm x 90 mm x 45 mm, which allows it to fit into standard industrial control panels.
Q7: What is the weight of the ABB TU891?
A7: The TU891 weighs approximately 1.2 kg, making it lightweight and easy to handle during installation.
Q8: Is the ABB TU891 suitable for outdoor use?
A8: While the TU891 can handle a range of temperatures, it is best used in indoor environments due to the limitations of its housing.
Q9: What type of housing material is used in the TU891?
A9: The TU891 is made of polycarbonate, which is durable and resistant to impact, ensuring the module’s protection in harsh environments.
Q10: Can the ABB TU891 be used in both small and large-scale systems?
A10: Yes, the TU891 is designed to be scalable, making it ideal for both small and large automation systems, depending on the requirements of the application.