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The ABB TK801V012 is a prefabricated ModuleBus extension cable engineered for use in ABB S800 I/O and System 800xA distributed control systems. It enables engineers to extend the ModuleBus connection between I/O modules, allowing devices on the same electrical bus to be installed on different DIN rails within a control cabinet.

With a 1.2-meter shielded cable length, the TK801V012 provides an ideal balance between installation flexibility and reliable signal transmission. The cable features D-Sub 25-pin male-to-female connectors, ensuring secure communication between S800 I/O modules and ModuleBus interface adapters.

Its industrial-grade shielding and prefabricated design simplify installation while protecting data signals from electromagnetic interference. As a result, the TK801V012 is widely used in modern ABB automation architectures where scalability, reliability, and efficient cabinet layout are essential.

Technical Specifications

Parameter	Specification
Model	TK801V012
Article Number	3BSC950089R3
Product Type	ModuleBus Extension Cable
System Compatibility	ABB S800 I/O / System 800xA / Advant OCS
Communication Interface	ModuleBus
Cable Type	Shielded Prefabricated Cable
Cable Length	1.2 m
Connector Type	D-Sub 25 (Male–Female)
Cable Diameter	10 mm
Installation	Control cabinet DIN-rail installation
EMI Protection	Industrial shielded construction
Dimensions	203 × 51 × 203 mm
Weight	0.265 kg

The cable is designed to extend ModuleBus communication so that S800 I/O modules mounted on separate DIN rails remain connected within the same bus structure.

Recommended Related Models

The TK801V012 extension cable is frequently used together with the following ABB ModuleBus components:

ABB TB805 ModuleBus Outlet Adapter
ABB TB845 Dual ModuleBus Outlet Adapter
ABB TB806 ModuleBus Inlet Adapter
ABB TB846 Dual ModuleBus Inlet Adapter
ABB TK801V003 ModuleBus Extension Cable
ABB TK801V006 ModuleBus Extension Cable

These accessories help engineers create flexible I/O cabinet configurations while maintaining reliable ModuleBus communication.

Popular ABB Models

The following ABB automation components are widely used across modern control systems:

ABB CI840A Communication Interface Module
ABB AI830A Analog Input Module
ABB SB822 Power Supply Module
ABB PM591-ETH PLC Controller
ABB PP865A Process Operator Panel

Together with S800 I/O accessories such as TK801V012, these modules form scalable and reliable automation infrastructures.

Applications

The ABB TK801V012 cable is widely used in industrial automation systems that require stable ModuleBus connectivity:

Distributed Control Systems (DCS)
Power generation and energy management plants
Oil and gas processing facilities
Chemical and petrochemical production systems
Industrial manufacturing automation lines
Control cabinets using ABB S800 I/O architectures

It ensures consistent communication performance while enabling flexible cabinet layout design.

Advantages

Flexible System Layout
The 1.2 m cable length allows I/O modules to be mounted across multiple DIN rails without losing ModuleBus connectivity.

Reliable Signal Integrity
Industrial shielding minimizes electromagnetic interference and ensures stable communication.

Fast Installation
Prefabricated connectors eliminate complex wiring and reduce installation time.

Designed for S800 I/O Systems
Fully optimized for ABB System 800xA and Advant OCS automation platforms.

Compact and Durable Construction
Industrial-grade materials ensure long service life in demanding process environments.

Technical FAQs

1. What is the purpose of the ABB TK801V012 cable?
It extends the ModuleBus connection between ABB S800 I/O modules.

2. What is the cable length of TK801V012?
The cable length is 1.2 meters.

3. Which systems are compatible with this cable?
It is used with ABB S800 I/O and System 800xA distributed control systems.

4. What connectors are used on the cable?
The cable features D-Sub 25-pin male-to-female connectors.

5. What modules typically work with TK801V012?
Modules such as TB805, TB845, TB806, and TB846 ModuleBus adapters.

6. Why is the cable shielded?
Shielding protects communication signals from electromagnetic interference in industrial environments.

7. Can the cable connect modules installed on different DIN rails?
Yes, it allows modules on the same ModuleBus to be mounted on separate DIN rails while remaining connected.

8. What is the weight of TK801V012?
The approximate weight is 0.265 kg.

9. Is the cable pre-assembled?
Yes, it is delivered as a factory-assembled prefabricated cable.

10. Where is TK801V012 typically installed?
It is installed inside industrial control cabinets with S800 I/O modules.

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