• ABB TU921S 3KDE175111L9210
  • ABB TU921S 3KDE175111L9210
  • ABB TU921S 3KDE175111L9210
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ABB TU921S 3KDE175111L9210 Advant S900 Redundant Termination Unit

ABB TU921S 3KDE175111L9210 Advant S900 Redundant Termination Unit

The ABB TU921S (3KDE175111L9210) is a high-performance redundant termination unit designed for the Advant S900 I/O system. This unit provides a robust interface for up to 16 I/O modules, supporting...

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SKU: TU921S 3KDE175111L9210
Vendor: ABB
Category: Termination Unit
Related Series:

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  • Guarantee: 30-day return window for in-stock, factory-sealed products.
  • Condition: Items must be unopened, unused, and in original packaging.
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Authenticity & Warranty

  • Genuine Guarantee: We supply only 100% original, brand-new, and factory-sealed industrial automation parts.
  • Full Coverage: Every component is backed by a 12-month comprehensive warranty from the date of purchase.
  • Traceability: All products come with original factory documentation and accessories for full industrial compliance.

Technical Support & Sourcing

  • Expert Assistance: Our technical team provides free consultation to help you verify compatibility for DCS and PLC systems.
  • Rare Part Sourcing: Specializing in obsolete and hard-to-find components from Allen-Bradley, Siemens, ABB, HIMA, and more.
  • Bulk Inquiries: Contact us at pambo@5gplc.com for volume pricing or customized project quotes.
View full product details

The ABB TU921S (3KDE175111L9210) is a high-performance redundant termination unit designed for the Advant S900 I/O system. This unit provides a robust interface for up to 16 I/O modules, supporting critical industrial processes that require high availability and fault tolerance.

Features

  • Supports redundancy for both power and communication paths to ensure system uptime.
  • Designed for installation in hazardous areas with ATEX certification for Zone 1.
  • Features Hot Swap functionality and Hot Configuration in Run, allowing for maintenance without process interruption.
  • Equipped with G3 conformal coating on all components for enhanced environmental protection.
  • Advanced diagnostic capabilities accessible via FDT/DTM for simplified troubleshooting and maintenance.
  • Integrated auto-diagnostics to reduce downtime and simplify system health monitoring.

Applications

The TU921S is primarily used in process automation environments where S900 I/O systems are deployed, such as chemical, petrochemical, and power generation plants. Its redundant architecture makes it suitable for safety-critical loops and high-availability control applications.

Technical Specifications

Product Model TU921S
Order Code 3KDE175111L9210
Capacity Up to 16 I/O modules
Redundancy Power and Communication
Environmental Protection G3 Coating
Certification ATEX Zone 1
Weight 2.96 kg

Installation Guidelines

  • Ensure the unit is mounted in a clean, dry, and vibration-free environment suitable for its IP rating.
  • Verify that the power supply is disconnected before installing or removing any I/O modules from the termination unit.
  • Use shielded cabling for communication lines to minimize electromagnetic interference (EMI) in industrial environments.
  • Ensure proper grounding of the termination unit chassis to the system common ground to maintain signal integrity and safety.
  • Follow standard ESD (Electrostatic Discharge) handling procedures when touching internal components or connectors.

FAQ

Does this unit support hot-swapping?
Yes, the TU921S supports hot-swap functionality, allowing you to replace modules while the system is running.

Is this unit suitable for hazardous locations?
Yes, the TU921S is ATEX certified for installation in Zone 1 hazardous areas.

How many I/O modules can be connected to this unit?
This termination unit is designed to accommodate up to 16 S900 I/O modules.