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
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.