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ABB TU890 3BSC690075R1 Module Termination Unit

ABB TU890 (3BSC690075R1) is a compact Module Termination Unit developed for ABB S800 I/O architectures and ABB Ability™ System 800xA control environments. The unit provides field signal termination, power distribution, and ModuleBus connectivity for compatible I/O modules.

Designed specifically for intrinsically safe applications, TU890 incorporates an intrinsic safety interface and wiring separator to ensure proper separation between hazardous and non-hazardous circuits. The unit distributes ModuleBus communication signals to connected I/O modules and automatically manages addressing within the S800 I/O structure.

Its compact footprint, DIN-rail mounting capability, and robust industrial construction make it ideal for process industries requiring reliable field connectivity, simplified maintenance, and high system availability.

Intrinsic Safety Support

Designed for hazardous-area applications with built-in intrinsic safety functionality and wiring separation.

Compact Installation

Space-saving design allows efficient installation within control cabinets and automation panels.

Reliable ModuleBus Distribution

Distributes communication signals to connected I/O modules while maintaining automatic addressing capability.

Flexible Field Wiring

Provides 27 field signal terminals for secure and organized wiring connections.

Simplified Maintenance

Supports quick replacement and maintenance procedures, minimizing plant downtime.

Industrial-Grade Reliability

Built for continuous operation in demanding process automation environments.

ABB TU890 is widely used in:

• ABB S800 I/O Systems

• ABB Ability™ System 800xA

• ABB Advant Control Systems

• Process Automation Plants

• Oil & Gas Facilities

• Petrochemical Industries

• Power Generation Plants

• Chemical Processing Plants

• Water & Wastewater Treatment

• Mining Operations

• Pulp & Paper Mills

• Industrial Manufacturing Facilities

What is ABB TU890 used for?

ABB TU890 is a Module Termination Unit used to connect field wiring, distribute ModuleBus communication, and provide intrinsic safety interfaces for ABB S800 I/O systems.

What is the ABB part number for TU890?

The official ABB product ID is 3BSC690075R1.

Is TU890 suitable for hazardous-area applications?

Yes. TU890 is specifically designed with an intrinsic safety interface for use in hazardous industrial environments.

How many signal terminals does TU890 provide?

The unit provides 27 signal terminals arranged in a 3×9 configuration.

Which ABB systems are compatible with TU890?

TU890 is primarily used with ABB S800 I/O modules and ABB 800xA control systems.

Does TU890 support DIN-rail installation?

Yes. The unit is designed for standard DIN-rail mounting.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.