ABB UFC921A 3BHE024856P106 | Factory-Sealed Spare

Description

• Model: ABB UFC921A
• ABB Part Number: 3BHE024856P106
• Product Type: Power-electronics / industrial control module. Public listings identify the UFC921A with ABB power-electronics applications, but available secondary descriptions conflict on its exact function.
• System Association: Commonly listed in connection with ABB AC 800PEC equipment.
• Physical dimensions: Approximately 120 × 80 × 45 mm according to one supplier listing; this dimension should be treated as unverified until matched against the applicable ABB mechanical drawing.
• Estimated net weight: Approximately 0.38 kg in one supplier listing; another listing reports 1.68 kg, demonstrating that published weight data is inconsistent.
• Shipping weight: Do not use either published figure as gross weight. Weigh the complete packed unit for freight documents.
• What’s in the box: Normally the UFC921A module itself. Do not assume cables, mounting hardware, terminal accessories, or configuration media are included.
• Receiving inspection: Record UFC921A, 3BHE024856P106, serial number, hardware revision, date code, and package condition.

Product Introduction

The UFC921A / 3BHE024856P106 is associated in available market documentation with ABB’s AC 800PEC and power-electronics control environment. It should therefore be managed as application-specific control hardware rather than as a generic PLC I/O module.

There is an important documentation-control issue with this part. Several secondary sellers describe the UFC921A as a programmable controller with ARM processing, digital and analog I/O, RS-485, and Modbus TCP, while other listings classify the same part as a power-electronics module. Those specifications are not sufficiently corroborated by an ABB primary document found in the available search results. Consequently, those values should not be entered into an engineering master-data record without OEM confirmation.

ABB UFC921A 3BHE024856P106

Master-data warning: One supplier claims ARM Cortex-M33 at 480 MHz, 512 KB memory, 4 MB storage, 8 DI / 8 DO / 2 AI / 2 AO, and 24 VDC input, while another describes encoder/resolver interfaces. These claims conflict and should not be treated as confirmed specifications.

? Global Compliance & Industry Certifications

For international shipment and installation, treat certification as a documentation requirement:

• CE Mark: Verify the actual marking and applicable ABB conformity documentation for the exact revision.
• UL/cUL: Confirm the relevant North American certification where required by the installation jurisdiction.
• ATEX / IECEx: Do not assume hazardous-area suitability. The complete enclosure and installed system must meet the applicable hazardous-location requirements.
• Marine approvals: For offshore or marine installations, verify DNV, ABS, or project-specific approval for the complete AC 800PEC system.
• RoHS: Confirm the applicable environmental declaration for the manufacturing revision.

A third-party listing claims CE, UL 61800-5-1, and RoHS compliance, but that claim should not be treated as an OEM certification record without the corresponding ABB declaration or certificate.

Verify specific lot certifications with OEM.

? Long-Term Storage & Asset Preservation Guide

Keep the in its original ESD shielding packaging. Avoid exposing the PCB, connectors, and contact surfaces during routine warehouse checks.

Control humidity and condensation. Store the module in a clean, dry location with stable temperature. When transferring a cold package into a warmer environment, allow the sealed package to reach ambient temperature before opening it.

Preserve the complete identification chain. Record the model, ABB part number, serial number, hardware revision, and date code. For older power-electronics hardware, revision-level information can be more useful than the short model number when matching a replacement.

Do not periodically energize the spare solely to demonstrate that it is still functional. Use an approved bench or system test procedure when electrical verification is required.

Physical Installation Prerequisites

• Mounting: Confirm the applicable AC 800PEC mechanical arrangement before installation. Do not assume DIN-rail mounting from third-party descriptions.
• Clearance: Follow the ABB cabinet and equipment drawing for required service and thermal clearance. A generic 50 mm clearance should not replace the manufacturer’s requirement.
• Cooling: Keep ventilation paths clear and prevent adjacent heat sources from raising the module’s local ambient temperature.
• Grounding: Follow the AC 800PEC protective-earth and functional-ground arrangement.
• Wiring: Verify every connector and terminal assignment against the applicable ABB documentation before energization.
• Configuration: Confirm the hardware revision and required firmware/application configuration before commissioning.
• ESD: Use a grounded wrist strap and ESD-safe workstation when handling the exposed module.

Do not install from a seller’s generic specification sheet alone. The conflicting descriptions found for this exact part make revision-level documentation particularly important.

Buyer’s FAQ

Q1: What HS tariff code should be used for 3BHE024856P106?

Do not assign a final HS code solely from . One secondary listing proposes 85371090, but that classification should be reviewed against the confirmed technical function and the importing country’s tariff schedule before customs filing.

Q2: What should I use for Country of Origin?

Use the actual COO of the supplied physical unit, supported by the manufacturer’s marking or traceable supplier documentation. Do not infer COO from the seller’s location or shipping origin. Keep the invoice, packing list, and COO documentation consistent.

Q3: Which weight should I use for shipping?

Do not rely on the conflicting online values. One source lists 0.38 kg, while another lists 1.68 kg.

For freight purposes, weigh the actual module and then the fully packed shipment. The latter is the appropriate gross weight for the packing list and freight booking.

Q4: Does the contain the latest firmware?

Do not assume it does. The available third-party descriptions disagree substantially about the hardware’s function and interfaces. Before accepting the unit as a replacement, request the actual hardware revision, firmware revision, serial number, and date code, then match those details against the installed ABB AC 800PEC configuration.

Asset-control recommendation: For this part, retain + 3BHE024856P106 + hardware revision + serial/date code as the minimum identification record.