Brand: ABB

ABB BC810K02-3BSE031155R1

Name: ABB BC810K02 CEX-Bus Interconnection Unit | Seven Star LLC
Brand: ABB

Description

Overview

The ABB BC810K02 CEX-Bus interconnection unit is built for the ABB AC 800M controller family, with ordering number 3BSE031155R1. It provides the physical and electrical interface between an AC 800M controller and its CEX-Bus connected I/O, combining the baseplate and power supply/logic board in a single DIN-rail mounted unit.

Hot swap is supported, allowing the interconnection board to be replaced without disturbing the controller, which is essential for maintaining control system availability in process plants.

Engineering & Design

The BC810 unit consists of two basic parts: the baseplate (TP857) and the power supply/logic board. The baseplate carries the connectors for the CEX-Bus and external power, and is grounded to the DIN-rail through the metal parts of the housing. It also carries the external power voting diode and fuse for protection.

The power supply and logic board contain the +3.3 V converter, logic circuits, and drivers for the CEX-Bus interconnection, plus the connector for the interconnection cable to other units. The BC810K02 is compatible with PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, and PM891 controllers.

Key Features

CEX-Bus interconnection unit for AC 800M
Ordering number 3BSE031155R1
Hot swap supported
TP857 baseplate with CEX-Bus and power connectors
External power voting diode and fuse on baseplate
+3.3 V converter and CEX-Bus drivers on logic board
DIN-rail mounting with grounded metal housing
Compatible with PM857 to PM891 controller range

Applications

AC 800M controller interconnection
CEX-Bus communication with I/O and fieldbus
Control system expansion
ABB 800xA system hardware support
Spare and replacement programmes for control systems

Specifications

Specification	Value
Manufacturer	ABB
Model	BC810K02
Ordering Number	3BSE031155R1
Type	CEX-Bus interconnection unit
Baseplate	TP857
Hot Swap	Supported
Mounting	DIN-rail, grounded metal housing
Compatible Controllers	PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, PM891

For ABB control system availability, the ABB BC810K02 CEX-Bus interconnection unit is the link that keeps I/O communicating, and Seven Star LLC supplies the ABB BC810K02 with verified part numbers for 800xA projects.

Why Seven Star LLC

Seven Star LLC supplies the ABB BC810K02 CEX-Bus interconnection unit for ABB control system projects across the Gulf, with verified part numbers and technical documentation. Our team assists with controller compatibility checks and spares planning for ABB 800xA installations.

We support oil and gas, power, and process industries with reliable B2B automation spares supply throughout the GCC.

Maintainability

The hot-swap capability of the BC810K02 is central to its design value: when an interconnection board must be replaced, the controller continues operating, protecting production availability. The baseplate carries the power voting diode and fuse, protecting the unit from supply faults.

Compatibility with the PM857 through PM891 controller range means the same spare part serves multiple controller generations, simplifying spare stock and maintenance procedures across a plant’s ABB fleet.

Documentation & Supply

Seven Star LLC supplies the ABB BC810K02 with full technical documentation and controller compatibility checks, supporting your ABB 800xA maintenance programme.

We also provide other ABB automation spares and can support hardware refresh projects across the GCC.

The BC810K02 is often stocked as a strategic spare because the interconnection unit is a single point in the AC 800M architecture. Its compatibility across the PM857 to PM891 range means one stocked unit protects multiple controller types, and the documented hot-swap procedure keeps replacement time to a minimum.

The documented spare part strategy for ABB 800xA systems commonly includes the BC810K02, and our team can help define the right sparing level for your plant.

The 800xA system documentation covers the BC810K02 installation and replacement procedure, and our team can provide guidance on the related hardware for your specific controller model.

The grounding of the housing to the DIN-rail is part of the EMC design, and correct installation following the ABB guidance maintains the unit’s immunity performance.

The BC810K02 is a compact DIN-rail unit, and its standardised connectors match the CEX-Bus cabling used across the AC 800M family.

For ABB 800xA maintenance, the ABB BC810K02 CEX-Bus interconnection unit is a key spare. Sourcing the BC810K02 from Seven Star LLC ensures verified part numbers in your stock.

Plants standardising spare parts benefit from the ABB BC810K02 CEX-Bus interconnection unit as a single spare for multiple controllers, and Seven Star LLC verifies every ABB BC810K02 CEX-Bus interconnection unit.

Request a Quote for ABB BC810K02-3BSE031155R1

For the ABB BC810K02 CEX-Bus interconnection unit, ABB BC810K02 or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your configuration and application details, and our specialists will respond with a detailed commercial proposal and the official ABB documentation.

How the ABB BC810K02-3BSE031155R1 Is Used in a Redundant CEX-Bus

In an AC 800M installation with redundant controllers, the CEX-Bus that links each processor unit to its communication interfaces is split into segments by BC810 interconnection units. If a fault occurs on one segment, the BC810 isolates it so that the communication interfaces on the healthy segment keep working with the controller that remains in control. This is why the BC810 is normally used in pairs, one per controller, connected by an interconnection cable.

The K02 suffix denotes a kit rather than a single board. Reseller listings describe 3BSE031155R1 as containing two BC810 units, two TP857 baseplates, a TK851 interconnection cable and two TB850 CEX-Bus terminators. Confirm the exact kit contents against the ABB documentation for your system release before ordering, particularly if you only need a single BC810 or a replacement cable.

Replacement Checklist

Identify the processor unit type (PM8xx) and the system software version in use.
Check whether the existing hardware is a single BC810 or a complete K02 kit.
Plan the hot-swap replacement with the control room and follow the ABB procedure for removing the power supply/logic board from its baseplate.
After replacement, confirm in the engineering tool that both CEX-Bus segments and all communication interfaces report healthy status.

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About brand

ABB, formed in 1988 and headquartered in Zurich, covers an unusually long stretch of a plant's equipment list, from the flowmeter and analyzer in the field to the drive, breaker and protection relay in the electrical room.

Seven Star LLC is an independent supplier serving Oman and the GCC. Our ABB listing concentrates on measurement and analytics: ABB flowmeters, liquid analysis sensors and systems, level and pressure instruments. It also includes valve actuators, low voltage circuit breakers, ABB drives, soft starters and protection relays.

ABB product families on this page

Flow measurement includes ABB electromagnetic, Coriolis, vortex and swirl meters, sold under names such as ProcessMaster, AquaMaster, CoriolisMaster and SwirlMaster. Liquid analysis covers pH, conductivity and dissolved oxygen sensors with their transmitters. SensyTemp TSP sensors handle temperature. On the electrical side the listing has ACS355 machinery drives, the ACS550 general purpose drive, the ACQ580 for water and wastewater and the ACS880-01 industrial drive, with fieldbus adapters such as the FPBA-01 for PROFIBUS DP. Protection and switching products include SACE Tmax XT molded case breakers, SACE Emax 2 air circuit breakers, PSR soft starters and the REM615 and RET615 relays.

Where ABB instruments and drives are used

Water and wastewater plants use the electromagnetic flowmeters, analyzers and ACQ580 drives together. Oil and gas, power and chemical plants specify the Coriolis and vortex meters, pressure and level transmitters and the 615 series relays for motor and transformer feeders. The drives run pumps, fans, conveyors and compressors in almost every industry.

Ordering ABB parts: what we need

For drives send the full type code from the rating label, for example ACS355-03E-05A6-4, plus the serial number if it is a replacement. For instruments send the complete order code, measuring span, process connection, wetted materials, output or protocol and the hazardous area approval. For breakers give frame size, rated current, breaking capacity, number of poles, trip unit and fixed or withdrawable version.