ABB TB805 3BSE008534R1 ModuleBus Cable Adaptor for S800 I/O

Product Overview

When your ABB S800 I/O system requires additional flexibility in module placement, the TB805 ModuleBus Cable Adaptor provides a reliable solution. This compact adaptor works with the TB806 and TK801V0xx to extend the ModuleBus, allowing I/O modules on the same electrical bus to be mounted on different DIN rails. Designed for industrial environments, the TB805 carries CE marking and certifications including IEC 61131-2, UL 61010-1, and UL 61010-2-201.

Technical Specifications

The TB805 offers key specifications that ensure dependable operation in demanding conditions. It operates within a temperature range of 0 to +55 °C, with storage capability from -25 to +70 °C, and relative humidity of 5 to 95% non-condensing per IEC/EN 61131-2. The unit features an IP20 protection rating according to IEC 60529, pollution degree 2 per IEC 60664-1, and corrosion protection meeting ISA-S71.04 G3 standards. Its compact dimensions are 22 mm width, 25 mm depth, and 109 mm height, with a weight of only 46 g, making it easy to integrate into existing panels.

Industry Applications

In process industries such as chemical, oil and gas, and power generation, the TB805 enables efficient distribution of I/O modules across multiple DIN rails within a single cabinet. This reduces wiring complexity and improves system organization. For marine applications, the adaptor holds certifications from ABS, BV, DNV, and LR, ensuring suitability for shipboard control systems. The hazardous location approvals (C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2) make it ideal for use in potentially explosive atmospheres.

Installation Guidance

Mount the TB805 on a standard DIN rail within the S800 I/O system. Connect it to the TB806 and TK801V0xx as per the manufacturer's guidelines to extend the ModuleBus. Ensure the operating environment stays within the 0 to +55 °C range and that relative humidity remains below 95% non-condensing. The IP20 rating requires installation inside a suitable enclosure that provides additional protection against dust and moisture.

Maintenance and Reliability

Regular inspection of the TB805 and its connections helps maintain system reliability. Check for signs of corrosion or contamination, especially in environments classified as ISA-S71.04 G3. The adaptor's robust design meets mechanical operating conditions per IEC 61131-2 and EMC standards EN 61000-6-4 and EN 61000-6-2, ensuring consistent performance over time. Periodic verification of the ModuleBus extension integrity can prevent communication issues.

Compatibility and Integration

The TB805 is designed exclusively for the ABB S800 I/O system. It works seamlessly with the TB806 and TK801V0xx to extend the ModuleBus. This integration allows I/O modules on the same electrical bus to be physically separated across different DIN rails, simplifying cabinet layout and maintenance. The adaptor supports the same environmental and electrical specifications as the S800 series, ensuring consistent system behavior.

Selection Guide

Before purchasing the TB805, verify that your system uses the ABB S800 I/O platform and that you have the required TB806 and TK801V0xx components. Confirm that the operating environment falls within the specified temperature and humidity limits. BluePLC Industrial offers the TB805 as a genuine ABB product, backed by our commitment to quality and availability. Contact our team for assistance with compatibility or to check current stock.