ABB 3BSE021447R1 TU845 S800 I/O Redundant Module Termination Unit

Description

The ABB 3BSE021447R1 TU845 is a dedicated Module Termination Unit (MTU) designed for high-availability configurations within the S800 I/O system platform. Engineered to support redundant input/output operational structures, this base infrastructure element provides physical housing and electrical routing connections for dual redundant I/O modules. The unit operates safely within a maximum working voltage threshold of 50V, making it highly suitable for low-voltage signal transmission loops. By routing signals through a structured backplane configuration, the 3BSE021447R1 enables concurrent dual-channel module connections to preserve continuous data acquisition and system control even during individual module diagnostics or field replacements. This structural solution seamlessly bridges field instrumentation wiring directly into distributed automation networks monitored by plant DCS architectures like the 800xA or Compact Product Suite.

Features

• Built-in support for dual redundant I/O module assemblies to enable fail-safe process monitoring loops.
• Rated for low-voltage signal deployment handling a maximum system rating of 50V.
• Integrated vertical DIN rail mounting framework optimized to maximize internal layout density inside industrial control cabinets.
• Pass-through terminal interface layout enabling convenient connection of multi-channel field sensors and actuator signal wiring.
• Component space allocation designed to operate without the pre-installation of an integrated shunt stick accessory.

Applications

• Redundant analog or digital field signal termination within 800xA distributed control system process nodes.
• High-density field wiring networks in continuous chemical plant processes, petroleum extraction plants, and petrochemical distribution hubs.
• Fail-safe safety and automation sub-loops in municipal clean water networks and industrial pumping stations.
• Multi-channel instrumentation routing for critical power plant auxiliary control setups and boiler management architectures.
• Distributed tracking assets deployed within heavy-duty manufacturing equipment managed by the Compact Product Suite.

Ordering Information

Ordering Information must be strictly evidence-based; if not explicitly present in source, omit entirely without explanation.

Technical Specifications

Connections / Interfaces

Installation Guidelines

• Mounting Orientation: Mount the hardware module framework strictly in a vertical orientation onto a standard 35 mm industrial DIN rail.
• Component Verification: Ensure that any required external shunt stick devices are sourced separately before commencing full loop integration, as they are not pre-packaged with the base unit.
• Voltage Constraints Check: Verify that the connected signal loops and auxiliary power sources do not exceed the absolute operational specification ceiling of 50V.
• Cabinet Spacing: Arrange adjacent components inside the electrical cabinet to properly accommodate the unit's net height of 124 mm and width of 186.5 mm, ensuring adequate airflow and routing clearances.
• Redundant Alignment: Seat both the primary and secondary I/O modules firmly into their designated base slots to guarantee complete channel coupling and continuous circuit tracking.

FAQ

What is the primary technical use of this termination unit?

The hardware is designed to provide structural termination and signal routing paths for dual redundant module setups within the S800 I/O product line.

Does this specific product arrive with an integrated shunt stick included?

No, the tracking data explicitly confirms that the shunt stick component is not included and must be provided separately.

What is the absolute maximum working voltage defined for this device?

The hardware is rated to manage low-voltage signal transmission loops running up to a maximum parameter of 50V.

How is this particular unit physically positioned and fixed inside a cabinet enclosure?

The module termination unit is explicitly configured for vertical mounting onto standard industrial DIN rail tracks.

Which primary distributed automation architectures are fully compatible with this component?

The unit is natively matched with ABB 800xA and Compact Product Suite platforms utilizing S800 I/O variations from version 4.0 through 6.0.

What is the exact physical net weight of this standalone termination base?

The baseline equipment has an individual net hardware weight of exactly 0.6 kg.

Are there any toxic internal battery sub-assemblies inside this hardware structure?

No, the unit is constructed with zero internal batteries, minimizing hazardous waste and simplified disposal processes.

What are the exact physical outline metrics for panel layout planning?

The structural housing tracks at a width of 186.5 mm, a height of 124 mm, and a net thickness depth of 64 mm.

What structural commodity code governs international customs shipping for this model?

The verified global tariff index records this equipment under Customs Tariff Number 85371098 and HS Code 853710.

Does this hardware follow European environmental substance restrictions?

Yes, the manufacturing guidelines comply fully with the parameters set forth in EU RoHS Directive 2011/65/EU.