Product Details
Description
The TU846 3BSE022460R1 provides a reliable mounting platform for two Communication Interface modules, enabling a fully redundant ModuleBus setup. It acts as a passive hub, distributing power and internal bus signals, with two independent 24V DC power feeds for the modules. With no active components, the TU846 offers high reliability and long service life. It features mechanical keying to prevent incorrect module insertion and integrated terminals for easy DIN rail installation, making it ideal for fault-tolerant I/O communication in distributed control systems.
Specifications
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Manufacturer: ABB
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Model Number: TU846 (3BSE022460R1)
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Product Type: Redundant Module Termination Unit (MTU)
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Supported Modules: Dual CI810, CI820, or CI840 Interfaces
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Input Voltage: 24 V DC (Redundant dual inputs)
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Maximum Current: 5 A
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Backplane Type: Redundant ModuleBus
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Mounting Type: 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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High-Availability Design: Accommodates two communication modules simultaneously to support automatic failover and eliminate communication downtime.
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Dual Power Feed Support: Equipped with separate terminal blocks for redundant power sources, ensuring the cluster remains energized during a power supply fault.
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Hot-Swap Functionality: Allows for the replacement of a faulty communication module without interrupting the operation of the redundant partner or the I/O cluster.
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Passive Circuitry: Uses a hardware-only design with no active electronics on the base unit, maximizing the Mean Time Between Failures (MTBF).
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Safe Configuration Keying: Features physical coding to ensure only compatible module types can be installed, protecting hardware from electrical damage.
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Vibration-Resistant Housing: Compact and durable construction designed for long-term stability in harsh industrial cabinet environments.
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
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.
Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
Safety relays form the bedrock of functional safety in modern factory automation, preventing catastrophic equipment failure and protecting plant personnel. While standard electromechanical relays handle basic load switching, they lack the redundant diagnostics required for high-risk industrial environments. Modern industrial automation platforms—including programmable logic controllers (PLCs) and distributed control systems (DCS)—rely on specialized safety relays to monitor field devices and isolate hazards instantly.
Voice-Activated Industrial Automation: Integrating Speech Control into PLC and DCS Architectures
Industrial automation integrates speech recognition, IIoT protocols, and NLP with PLCs and DCS to streamline operations. By leveraging advanced edge computing, engineers enable real-time, hands-free control—allowing personnel to manage smart factory processes safely away from hazardous equipment.