ABB UFC921A101 (3BHE024855R0101) – High-Speed Interface Board | AC800M / AC800PEC DCS Platform
Engineering Background
The ABB UFC921A101 is a precision-engineered interface board designed for ABB’s flagship AC800M and AC800PEC distributed control system (DCS) platforms. Carrying the hardware revision code 3BHE024855R0101, this module serves as a critical communication and signal-routing bridge within high-availability process automation architectures. It is widely deployed in power generation, oil & gas, pulp & paper, and chemical processing facilities where uninterrupted control integrity is non-negotiable.
Product Positioning
Konmask.com supplies the UFC921A101 as a certified-compatible replacement and expansion module for existing AC800M controller cabinets. Each unit is sourced from verified industrial channels, functionally tested, and shipped with full traceability documentation — enabling procurement engineers to reduce lead times without compromising system reliability.
Complete Technical Specifications
| Part Number | UFC921A101 |
| Hardware Reference | 3BHE024855R0101 |
| Manufacturer | ABB Ltd. (Sweden) |
| Product Series | AC800M / AC800PEC DCS |
| Module Type | Interface Board |
| Form Factor | PCB Module, DIN-rail / backplane mount |
| Operating Voltage | 24 VDC (system bus powered) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 5–95% RH, non-condensing |
| Weight | 165 g |
| Approvals | CE, UL (per AC800M system certification) |
| Country of Origin | Sweden |
| Condition | New / Refurbished-Tested (specify on order) |
Proven Application Environments
- Power Generation: Turbine governor and excitation control systems using AC800PEC
- Oil & Gas: Upstream SCADA and compressor station DCS cabinets
- Pulp & Paper: Continuous digester and recovery boiler control loops
- Chemical Processing: Reactor temperature and pressure cascade control
- Water Treatment: SCADA-integrated pump and valve sequencing
- Marine & Offshore: Vessel automation and dynamic positioning systems
Engineering Advantages
- Drop-in Compatibility: Direct replacement for existing UFC921A101 slots — no firmware reconfiguration required in standard AC800M deployments
- Signal Integrity: Engineered for low-latency, noise-immune signal routing across the AC800M backplane
- High MTBF Design: Industrial-grade components rated for continuous 24/7 operation in harsh environments
- Redundancy Support: Compatible with AC800M redundant controller configurations for fault-tolerant architectures
- Compact Form Factor: Optimized PCB layout minimizes cabinet footprint while maximizing I/O density
System Architecture & Signal Flow
Within the AC800M controller rack, the UFC921A101 interface board occupies a dedicated backplane slot and manages bidirectional signal exchange between the main processor module (PM8xx series) and peripheral I/O modules or external communication buses. The board handles protocol translation, interrupt management, and real-time data buffering — ensuring deterministic scan cycle performance critical to process safety applications.
In AC800PEC configurations (power electronics control), the UFC921A101 supports high-speed feedback loops for excitation and drive systems, where microsecond-level response times are required.
Sourcing & Quality Verification
- All units sourced from authorized industrial distributors or decommissioned OEM systems with full chain-of-custody records
- Functional power-on test performed prior to shipment
- Visual inspection: PCB traces, connectors, and component integrity verified
- Anti-static packaging with humidity indicator card
- Batch traceability via serial number and date code documentation
- 30-day return window for DOA (Dead on Arrival) units
Procurement Process
- Confirm Part Number: Verify UFC921A101 / 3BHE024855R0101 matches your system’s slot requirement
- Request Quote: Contact support@konmask.com with quantity and delivery timeline
- Order Confirmation: Receive proforma invoice with lead time and shipping options (DHL / FedEx / sea freight)
- Quality Documentation: Test report and packing list provided with every shipment
- After-Sales Support: Technical assistance available for installation and commissioning queries
Technical FAQ
Q: Is UFC921A101 compatible with both AC800M and AC800PEC platforms?
A: Yes. The 3BHE024855R0101 hardware revision is qualified for use in both AC800M standard DCS and AC800PEC power electronics control configurations.
Q: Can this board be used in a redundant controller setup?
A: Yes, the UFC921A101 supports ABB’s standard redundancy architecture when paired with compatible PM8xx processor modules.
Q: What is the lead time for in-stock units?
A: In-stock units ship within 1–3 business days. For bulk orders (>5 units), please contact us for availability confirmation.
Q: Do you provide a test report with each unit?
A: Yes. A functional test report is included with every shipment upon request.
Q: What warranty is offered?
A: We offer a 30-day DOA guarantee. Extended warranty options are available — contact us for details.
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