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- TK856 3BSE057021R1
TK856 3BSE057021R1
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Product Information
Product Describe
TK856
3BSE057021R1
RCU Control Link Cable
TK856 RCU Control Link Cable, 1m
3BSE057021R1
RCU Control Link Cable
TK856 RCU Control Link Cable, 1m
Technical specifications for TK856 3BSE057021R1
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Product ModelTK856 3BSE057021R1
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Product ParametersRCU Control Link Cable
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Tariff Code8537101190
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Country of originSWEDEN
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Place of shipmentXiamen, China
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Estimated Shipping Size18.5x6.5x12.6cm
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ManufacturerABB
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Weight0.5 kg
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Voltage Ratingup to 300 V
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Current RatingUp to 2 A per conductor
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Operating Temperature-20 °C to +70 °C (typical)
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Storage Temperature-40 °C to +85 °C
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Humidity5–95% non-condensing
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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What is this TK856 3BSE057021R1?+The ABB TK856 3BSE057021R1 is a 1-meter prefabricated RCU (Redundant Control Unit) control link cable specifically to connect ABB controller hardware
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What is the primary function of the TK856 cable?+The TK856 is used as a control link cable to connect redundant processor units, primarily the ABB PM891. It ensures reliable, continuous synchronization and communication between primary and backup controller nodes in the ABB System 800xA platform
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Which controller uses this cable?+It is exclusively used for redundancy linking with the PM891 controller line
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What is the TK856 cable used for?+The TK856 is an RCU (Redundant Control Unit) control link cable used to establish a reliable communication link between redundant processor units (such as the PM891) to enable hot replacement and continuous process control.
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Product
MORE INFORMATION
Overview
Manuals
Technical notes
Product Applications
Core Installation Process
Features:
- Dedicated PM891 Redundant Control Link
- CPU Role Selection & Identity Assignment
- Precise 1.0-Meter Prefabricated Length
- Dual-Cable Redundancy Architecture
- Compact & Lightweight Form Factor
The TK856 3BSE057021R1 ABB RCU Control Link Cable may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB TK856 3BSE057021R1 RCU Control Link Cable Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The TK856 operates within a dual-cable redundancy architecture that separates control functions from data synchronization. It is complemented by the TK855 RCU Data Link Cable (3BSC950356R1), which transfers the actual application data required to keep the backup PM891 synchronized with the primary PM891. The TK856 handles the separate control link function, ensuring that role management, identity assignment, and control handshaking remain isolated from high-volume data synchronization traffic. This architectural separation enhances system reliability and simplifies fault isolation during diagnostic procedures.
- Power Generation:Aux turbine/pump/switchyard metrics
- Oil & Gas Facilities:Process control & safety layers
- Water Treatment Plants:Sequencing data across control clusters
- Cement & Glass Factories:Chettinad systems
- Pulp, Paper, & Steel Mills:Legacy protocols for rollers/digesters/casting
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Power Down Warning: Always isolate or remove control power to the processor chassis before handling system connections to prevent static or electrical damage.
Locate the RCU Ports: Identify the dedicated RCU link ports on the face or base of your redundant PM891 units.
Connect the D-Sub Ends: Plug the prefabricated D-sub 25-pin connectors firmly into the designated ports.
Secure the Thumbscrews: Tighten the built-in thumbscrews on both ends by hand to guarantee a secure physical connection and continuous grounding. Do not overtighten with tools.
- What Happens Next
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Get the quote now Write Email to: INFO@AMIKON.CNEmail confirmation You will get an email confirming that we have received your enquiry.Dedicated Account Manager One of our team will be in touch to confirm your part(s) specification and condition.Your quote You will receive a comprehensive quote tailored to your specific needs.Need Moore Help? Get fast and efficient help from our experienced sales or customer service teams.
- Delivery and Payment
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Delivery
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Same day dispatch from warehouse inventory
Warranty
All parts new original are covered by Amikon 12 month warranty
Returns
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For more information, please visit our dedicated payments page.
- Why Choose Amikon Limited?
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When it comes to industrial automation, reliability, speed, and trust matter. At Amikon Limited, we go beyond just supplying parts — we deliver confidence.
- ● Extensive Inventory Reach: Nearly 1 million automation parts at your fingertips, including legacy and obsolete models.
- ● 20+ Years of Expertise: Trusted by engineers, project managers and government companies worldwide for our professional service.
- ● Quality You Can Trust: Each unit is strictly inspected by the warehouse staff to ensure product quality
- ● Fast Global Shipping: We help you minimize downtime with express logistics worldwide.
- ● 1-Year Warranty Available: Peace of mind with every purchase backed by one year warranty guarantee.
Whether you're maintaining legacy systems or building future-ready projects, Amikon Limited is your dependable partner in precision and performance.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN