TU834 3BSE040364R1 | ABB S800 I/O Extended Termination Unit

Product Overview

The ABB TU834 (3BSE040364R1) functions as the critical physical interface for the S800 I/O system, specifically engineered to support AI880 and AI880A analog input modules. This extended termination unit facilitates the connection between field wiring and the I/O bus, offering 8 channels of signal distribution and integrated process power terminals. We supply this unit as 100% brand new original equipment to ensure maximum system integrity in your automation architecture.

Technical Specifications

The TU834 employs a robust terminal block design capable of handling significant electrical loads while maintaining a compact footprint.

Engineering Advantages

• High-Density Wiring Management: The TU834 utilizes 40 process connection points within a 126mm width. This solves the challenge of limited cabinet space by allowing dense terminal clusters without sacrificing access for maintenance.

• Dual-Directional Mounting: The hardware supports mounting in both vertical and horizontal directions. This flexibility allows engineers to optimize airflow and cable routing paths in non-standard enclosure layouts.

• Harsh Environment Resilience: Featuring G3-level corrosion protection and ATEX Zone 2 certification, this unit operates safely in chemical-heavy or explosive atmospheres where standard termination boards would fail.

• Simplified Module Replacement: The design separates the I/O module from the field wiring. This allows technicians to hot-swap AI880 modules without disconnecting a single field wire, drastically reducing Mean Time to Repair (MTTR).

FAQs

• Can I use the TU834 with redundant I/O configurations?

  No, the TU834 supports single I/O configurations only. For redundant setups, you must select a termination unit specifically rated for redundancy.

• What is the recommended stripping length for field wiring?

  Ensure you strip exactly 7 mm of insulation from the wire. This depth optimizes the contact surface area within the terminal block and prevents exposed conductors from shorting.

• Does this unit support hazardous location installations?

  Yes. The TU834 carries ATEX Zone 2, C1 Div 2 cULus, and C1 Zone 2 cULus certifications, making it suitable for hazardous industrial environments.

• Is this product an authentic ABB component?

  We guarantee this unit is 100% Brand New and Original ABB hardware. Each unit ships in factory packaging with full technical compliance to Marine (DNV-GL, ABS, etc.) and global safety standards.