Description
- Model: UFC921A
- ABB Part Number: 3BHE024856P201
- Part Type: Main Control Unit / Main Control Board
- Application: ABB industrial drive and excitation-control equipment
- Associated Part: 3BHE024855R0101 is identified in supplier documentation as a related control/interface board
- Lifecycle: Reported by multiple aftermarket sources as a legacy/discontinued spare; verify the installed hardware revision before ordering.
Technical Introduction
When an ABB control platform is tied to a legacy UFC921A assembly, finding the correct board revision matters more than simply matching the UFC921A designation.
The ABB UFC921A 3BHE024856P201 is identified in available industrial automation references as a main control unit / main control board. It is associated with ABB control platforms used in drive and excitation applications, including references to UNITROL 5000 and ACS2000 equipment. Some aftermarket documentation also identifies 3BHE024855R0101 as a related board used with the UFC921A assembly.
Best Suited For
- Legacy ABB drive or excitation-system maintenance
- Planned replacement of an existing UFC921A assembly
- Spare-parts inventory for equipment approaching obsolescence
Core Technical Specifications
- Manufacturer: ABB
- Model:
- Part Number: 3BHE024856P201
- Part Type: Main Control Unit / Main Control Board
- Related Hardware: UFC921A101 / 3BHE024855R0101 is referenced with this assembly in aftermarket documentation
- Application: ABB industrial drive and excitation-control systems
- Platform References: UNITROL 5000 and ABB AC800PEC-related control applications are identified by available product references
- Lifecycle: Legacy/discontinued status is reported by aftermarket sources; confirm current OEM support before system modification.
Specification caution: Publicly available third-party listings contain conflicting electrical, environmental, communication, and dimensional data for this part. Those values should not be treated as OEM specifications. Please refer to the OEM documentation and the installed unit’s nameplate for complete electrical and environmental requirements.
ABB UFC921A 3BHE024856P201
Field Engineer’s Tech Notes
1. Do not treat the part number as the only compatibility check.
For a legacy control assembly, verify the complete installed configuration, hardware revision, associated interface board, firmware/software revision, and cabinet application before replacing the board. A visually similar UFC-series board is not automatically a direct substitute.
2. Record the existing configuration before removal.
Photograph board identifiers, connectors, jumper or switch positions, and cabinet wiring before disconnecting the failed unit. If the existing controller contains application-specific configuration, preserve the available configuration and commissioning records before installing the replacement.
Adaptive QA & Testing Protocol
For a main control unit/control board, incoming inspection should start with the PCB part number, revision markings, connector condition, coating condition, and signs of storage or handling damage.
Where the hardware supports functional testing, the unit should then be checked on an appropriate ABB-compatible test setup rather than being treated as a generic powered PCB. The test scope should include power-up behavior, controller diagnostics, interface communication, and application-specific control functions. For a replacement intended for a drive or excitation system, the final verification should be performed against the equipment’s approved commissioning procedure.
Test reports, inspection photographs, and available test videos can be provided upon request. Condition should be stated clearly on the quotation as New Surplus (NSFP), refurbished, or another verified condition.
ABB UFC921A 3BHE024856P201
Buyer’s FAQ
Is the ABB 3BHE024856P201 still available?
This is a legacy part, and aftermarket sources currently list it as discontinued or as a replacement/maintenance spare. Actual stock status varies by supplier, so availability should be confirmed against the required quantity and condition before issuing a PO.
Is 3BHE024856P201 a direct replacement for every application?
Not necessarily. Confirm the complete part number, hardware revision, associated control/interface boards, installed system, and firmware or configuration requirements before treating it as a direct replacement.
Can you supply a refurbished unit?
Availability depends on current inventory. For refurbished material, request the unit’s inspection status, test scope, photographs, serial/part-number information, and warranty terms before purchase.
What information should I provide when requesting a quotation?
Provide , 3BHE024856P201, the quantity required, required condition, destination country, and—where available—the existing unit’s revision and equipment/system designation. This allows the replacement to be checked against the installed configuration rather than relying on the model name alone.
Start Chat
