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Product Introduction
The ABB TU843 3BSE021443R1 is a high-performance terminal unit (base/terminal) designed for use in industrial control systems. Part of ABB’s extensive portfolio of automation solutions, this terminal unit provides an efficient and reliable interface between control systems and field devices. Designed to optimize connectivity, the TU843 ensures secure, high-quality connections between I/O modules and external wiring, significantly improving the overall performance and maintenance of control systems.
With a robust design and versatile features, the TU843 is an ideal solution for industrial environments that require compact, reliable, and durable terminal units. The modular design facilitates easy installation, and the system is designed to integrate seamlessly into ABB’s AC 800M control system. Whether for use in manufacturing, power generation, or energy monitoring, the TU843 serves as a critical component in optimizing the performance of industrial processes.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | TU843 |
| Product Code | 3BSE021443R1 |
| Dimensions (L x W x H) | 64 x 186.5 x 131 mm |
| Weight | 0.6 kg |
| Terminal Type | Screw Terminals |
| Mounting Method | DIN Rail |
| Terminal Capacity | 0.2 – 2.5 mm² (24–12 AWG) |
| Rated Voltage | 24 V DC |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity (non-condensing) | 5% to 95% RH |
| Material | Flame-retardant plastic |
| Vibration Resistance | 1g, 5–500 Hz |
| Insulation Resistance | ≥100 MΩ at 500 VDC |
| Certifications | CE, UL, RoHS |
Product Applications
The ABB TU843 Terminal Unit is designed for various applications in industrial control systems. Key uses include:
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Process Control: In chemical, pharmaceutical, and food industries, where automation processes require reliable and precise signal connections.
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Energy Management: Ideal for power distribution and monitoring systems that require secure communication between field devices and control systems.
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Water and Wastewater Treatment: TU843 is designed to withstand environmental extremes, making it suitable for operation in water treatment plants, where moisture and fluctuating temperatures are common.
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Manufacturing Automation: In automated production lines, the TU843 ensures that communication between sensors, actuators, and controllers is efficient and accurate.
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Building Automation: TU843 integrates seamlessly with HVAC and lighting control systems, ensuring smooth communication between the field and control modules.
With its versatile features, the TU843 can be easily adapted to meet the requirements of different industrial sectors, from manufacturing to utilities.
Product Advantages
The ABB TU843 Terminal Unit offers several distinct advantages, making it an excellent choice for industrial control systems:
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Compact and Space-Efficient: The terminal unit’s dimensions (64 x 186.5 x 131 mm) ensure it fits into tight spaces, optimizing cabinet layout in high-density installations.
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Reliable and Secure Connections: The screw terminal design ensures secure and vibration-resistant connections, minimizing the risk of loose connections and enhancing system reliability.
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Ease of Installation: The DIN rail mount design allows for quick and easy installation, reducing installation time and costs.
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Wide Temperature and Humidity Tolerance: With an operating temperature range of -20°C to +60°C and humidity tolerance of 5% to 95%, the TU843 is designed to function reliably in a range of industrial environments.
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Durable and Safe Construction: The flame-retardant plastic construction of the unit provides additional safety in environments with electrical risks, ensuring long-lasting durability.
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Versatile Compatibility: Compatible with various ABB I/O modules, the TU843 can integrate seamlessly into different control systems, offering flexibility for system design.
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Enhanced Vibration Resistance: The TU843 is designed to operate in high-vibration environments, making it suitable for industries such as manufacturing and energy production.
The combination of these features ensures that the TU843 provides long-term, stable performance, even in demanding applications.
Frequently Asked Questions (FAQ)
1. What is the maximum current rating of the ABB TU843?
The TU843 supports a maximum current rating of 10 A per terminal.
2. What is the rated voltage for the ABB TU843?
The rated voltage for the TU843 terminal unit is 24 V DC.
3. Can I use this unit for outdoor installations?
While the TU843 is robust, it is best suited for indoor environments. Outdoor use requires proper housing to protect it from direct exposure to harsh weather conditions.
4. Is the ABB TU843 compatible with all ABB I/O modules?
Yes, the TU843 is compatible with a variety of ABB I/O modules, offering flexibility for system integration.
5. What is the operating temperature range for the TU843?
The TU843 operates between -20°C and +60°C, making it suitable for a variety of industrial environments.
6. How does the TU843 help in reducing installation time?
The TU843 features a DIN rail mount design, which simplifies and speeds up the installation process.
7. What is the maximum wire gauge the TU843 can handle?
The TU843 can handle wires ranging from 0.2 mm² to 2.5 mm² (24–12 AWG), ensuring compatibility with various wire sizes.
8. How does the TU843 resist vibrations?
The TU843 is designed to resist vibrations up to 1g, 5–500 Hz, making it suitable for use in industries with high mechanical activity.
9. Does the ABB TU843 come with a warranty?
Yes, the ABB TU843 typically comes with a standard warranty, though specific terms may vary depending on the region.
10. What certifications does the TU843 have?
The TU843 is certified with CE, UL, and RoHS, ensuring it meets global safety and environmental standards.
Related Models from the Same Series
| Model | Description |
|---|---|
| TU840 | Basic version of terminal unit for standard applications. |
| TU841 | Compact version for lower channel density setups. |
| TU842 | Versatile terminal unit with increased channel capacity. |
| TU845 | High-density terminal unit suitable for complex I/O systems. |
| TU846 | Enhanced version with extra isolation and secure connection features. |
| TU847 | Reinforced terminal unit for harsh industrial environments. |
Popular ABB Models
| Model | Description |
|---|---|
| TU532 | Compact 32-channel termination unit for analog signals |
| TU533 | Termination unit with extended field wiring support |
| TU810 | Basic TU for standard signal interfacing and wiring |
| TU818 | Redundant termination unit supporting dual-channel inputs |
| TU812V1 | TU with improved grounding and shielding for harsh environments |
| TU849 | High-density TU optimized for space-constrained applications |
