ABB TB840 | High-Performance Optical Cluster Modem for S800 Series
Manufacturer: ABB
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Part Number: TB840 3BSE021456R1
Condition：New with Original Package
Product Type: High-Performance Optical Cluster Modem for S800 Series
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB TB840 3BSE021456R1 | Optical Cluster Modem
The ABB TB840, part number 3BSE021456R1, is a high-performance optical cluster modem developed for ABB’s AC 800M control system. It enables redundant 1+1 optical communication between cluster units, ensuring uninterrupted data exchange and enhanced system reliability in distributed automation architectures.
Designed with robust fault-tolerant communication, the TB840 facilitates seamless data transfer between I/O clusters and controllers across the Modulebus. Its modular scalability allows engineers to expand systems efficiently without sacrificing performance or uptime.
Built with precision engineering, the ABB TB840 ensures stable operation under industrial conditions, supporting high-speed optical links up to 9600 bps. Its compact 16 × 15.7 × 8 cm form factor and lightweight 0.272 kg design make installation simple and space-efficient.
The TB840 has been superseded by the TB840A, which maintains full pin compatibility while incorporating improved hardware reliability. Both models are widely used in distributed control systems, process automation, and modular communication networks.
⚙️ Technical Specifications
| Specification | Details |
|---|---|
| Model Number | TB840 |
| Part Number | 3BSE021456R1 |
| Manufacturer | ABB |
| Product Type | Optical Cluster Modem |
| Function | 1+1 Redundant Optical Communication |
| System Compatibility | ABB AC 800M Control System |
| Communication Type | Optical Modulebus |
| Data Transfer Rate | Up to 9600 bps |
| Dimensions (L × H × W) | 16 cm × 15.7 cm × 8 cm |
| Weight | 0.272 kg |
| Replacement Model | TB840A (Pin-Compatible) |
| Customs Tariff Number | 85389091 |
| Applications | Distributed Control Systems, Industrial Automation |
FAQ
Q1: Is the ABB TB840 3BSE021456R1 new and original?
Yes, the ABB TB840 is 100% brand new and original, sealed in its factory packaging.
Q2: What is the difference between TB840 and TB840A?
The TB840A is a pin-compatible upgrade of TB840, featuring enhanced hardware stability and improved reliability.
Q3: What is the communication speed of the ABB TB840?
It supports optical data transfer rates up to 9600 bps, ensuring efficient and stable communication between cluster units.
Q4: What are the typical applications for TB840?
The TB840 is ideal for distributed control systems, process automation, and redundant industrial communication networks.
Q5: What are the physical dimensions and weight of the TB840?
The module measures 16 × 15.7 × 8 cm and weighs approximately 0.272 kg, allowing compact installation.