Product Details
Description
The TU845 3BSE021447R1 is a passive interface that integrates redundant ModuleBus connections and dual power supply routing for increased system reliability. It houses two communication modules for seamless failover, ensuring fault tolerance in critical process control applications. The unit provides dedicated terminal blocks for redundant 24V DC power inputs, securing both data and power paths. Its rugged DIN-rail mountable design includes mechanical keying to prevent configuration errors. With no active electronics, the TU845 maximizes MTBF for the distributed I/O station.
Specifications
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Manufacturer: ABB
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Model Number: TU845 (3BSE021447R1)
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Product Type: Redundant Module Termination Unit
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Supported Modules: Dual CI810 or CI820 Interfaces
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Input Voltage: 24 V DC (Redundant inputs)
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Maximum Current: 5 A
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Interface: Redundant ModuleBus
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Mounting: 35mm DIN Rail
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Protection Rating: IP20
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Operating Temperature: -25 to +70 °C
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Weight: 0.55 kg
Features
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Fault-Tolerant Architecture: Designed specifically for redundant communication setups to eliminate single points of failure in the control network.
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Dual Power Distribution: Includes separate terminals for two independent power feeds, maintaining I/O cluster operation during a power supply failure.
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Hot-Swappable Capability: Allows for the replacement of a faulty communication interface while the system is live and the redundant partner is active.
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Reliable Passive Backplane: Minimizes failure risks by using a hardware-only signal routing design without active electronic components.
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Mechanical Safety Coding: Built-in physical keying pins ensure that only authorized and compatible module types can be seated in the unit.
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High-Density Cabinet Solution: Provides a centralized hub for redundant bus and power management within a compact, vibration-resistant 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.