Product Details
Description
The TU841 3BSE020848R1 provides fault-tolerant architecture by housing two independent communication modules on a single passive backplane. If one module fails, the redundant unit takes over the data traffic, keeping the I/O station operational. It routes the ModuleBus internally and offers terminal points for dual power supplies, improving electrical reliability. Designed for long-term stability, the unit has no active components, maximizing MTBF. The TU841 mounts on DIN rails and features mechanical keying to ensure safe and correct module installation.
Specifications
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Manufacturer: ABB
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Model Number: TU841 (3BSE020848R1)
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Product Type: Redundant Module Termination Unit (MTU)
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Redundancy Support: Dual CI810 / CI820 Communication Modules
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Input Voltage: 24 V DC (Dual inputs supported)
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Max Current: 5 A
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Bus Type: ModuleBus (Internal)
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Mounting: 35mm DIN Rail
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Protection Class: IP20
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Operating Temperature: -25 to +70 °C
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Weight: 0.54 kg
Features
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Redundant Interface Housing: Optimized for dual communication modules to eliminate single points of failure in the control network.
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Passive Backplane Design: Increases system durability by utilizing a hardware-only routing base with no active electronics to fail.
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Live Module Replacement: Supports hot-swapping, allowing technicians to replace a faulty communication interface while the process continues to run.
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Dual Power Feed: Accommodates two separate power sources to maintain system integrity in the event of a power supply unit failure.
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Safety Coding Pins: Features integrated mechanical keying to ensure hardware compatibility and protect against incorrect module insertion.
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Compact DIN Rail Installation: Provides a high-density solution for redundant bus management within a small cabinet footprint.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.