Description
Meta Description
Get technical specifications, component kit breakdowns, and stocking levels for the ABB BC810K02 (3BSE031155R1) CEX-bus interconnection unit used in System 800xA.
Main Body
Field Assessment of the AC 800M Expansion Bus Interconnection
Running parallel controller communication backplanes without physical segmentation introduces a single point of failure that can crash an entire processor cluster. During a recent validation of a primary communication architecture, an unfused CEX-bus short circuit proved that ignoring segment isolation can lead to an unexpected multi-node shutdown. The ABB BC810K02 (3BSE031155R1) is a CEX-bus interconnection unit kit designed for the AC 800M controller hardware platform. It divides the communication expansion bus into independent, isolated sections, restricting local hardware faults from propagating across your entire control topology and allowing online CPU replacement or hot-swapping.
Technical Specifications
| Parameter | Value |
| Brand: | ABB |
| Model Number: | BC810K02 |
| Product ID: | 3BSE031155R1 |
| Platform Compatibility: | System 800xA / AC 800M Controller Series |
| Input Voltage: | 24 V DC nominal (19.2 to 30 V DC acceptable range) |
| Power Consumption: | 50 mA typical (70 mA maximum at 24 V DC) |
| Power Dissipation: | 1.2 W typical |
| Kit Component 1: | 2 pcs BC810 Interconnection Units |
| Kit Component 2: | 2 pcs TP857 Baseplates |
| Kit Component 3: | 1 pc TK851 Interconnection Cable |
| Kit Component 4: | 2 pcs TB850 CEX-Bus Terminators |
| Protection Class: | IP20 conforming to EN60529 |
| Hazardous Area Ratings: | cULus Class 1 Zone 2, AEx nA IIC T4, Ex nA IIC T4Gc X |
| Product Condition: | New Original (New Surplus) or Refurbished (tested) |
| Warranty: | 12-month comprehensive warranty |
Strategic Lifecycle and Stocking Analysis
By cross-referencing system criticality against usage frequency across your automation footprint, this interconnection kit represents a high-impact insurance component. Because the BC810K02 manages the physical division and termination of your communication plane, its failure directly compromises your online expansion capabilities and system redundancy.
We recommend maintaining a buffer stock of 1 complete kit on-site if your facility operates more than four AC 800M processor nests utilizing extended communication modules (such as PROFIBUS or Modbus cards). For smaller networks, negotiating a frame agreement with an independent stocking supplier guarantees a replacement module package within 24 hours. Letting your local inventory level drop to zero means risking extended downtime while searching for verified, factory-terminated cables and matching bus terminators on the secondary market.
Operational Boundaries and System Limitations
Do not mount the BC810 modules onto a standard DIN rail without ensuring the rail itself is directly bonded to your primary cabinet functional earth ground. Well, technically the unit snaps onto any standard 35 mm rail, but the high-integrity noise shielding and surge protection circuits require that direct physical contact point to drain backplane transients away from your communication lines. This module combination is not recommended for environments subject to continuous temperatures exceeding +55 °C—excess thermal buildup inside compact enclosures will degrade the internal 24 V DC to 3.3 V DC logic converters.
Quick Conclusions
- Keep 1 complete kit on-site as an insurance policy if your processing paths rely on hot-swappable AC 800M controller redundancy.
- Verify the physical presence of both TB850 terminators during initial unboxing to ensure correct bus impedance matching.
- Expect a standard lead time of 1 to 3 business days when pulling from verified global industrial surplus stocks.
- Check the structural integrity of the TK851 interface cable pins before making hot-swap connections to live baseplates.
FAQ
What exact items ship inside the 3BSE031155R1 kit box?
The BC810K02 kit includes two individual BC810 interconnection units, two TP857 baseplates, one TK851 connection cable, and two TB850 CEX-bus terminators.
Can I run an AC 800M system with only one half of this kit installed?
Well, technically a single BC810 can act as a local bus boundary, but the interconnection architecture is engineered as a paired assembly to link separate hardware racks or split independent CEX-bus segments safely.
Does this interconnection module require specialized firmware flashing?
No, the BC810 acts as a hardware-level bus driver and segmentation device. It adapts automatically to the communication speeds set by the master PM864 or PM866 processor modules.
Channel Adaptation Notes
- Website Product Page: Organize the spec block using explicit “Kit Component” parameters so procurement agents see exactly what sub-parts are bundled with the 3BSE031155R1 number.
- LinkedIn Technical Post: Write from a practitioner angle. Focus on how backplane segment isolation saves thousands in troubleshooting labor when tracing intermittent fieldbus communication errors.
- Q&A Forum: Use the FAQ layout to assist technicians trying to determine if an existing system layout can be split into redundant zones using this specific kit.
