Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | S-076N |
| Material Number | 3BHB009884R0021 |
| Module Type | Drive supply unit / DCSU-type module |
| Typical System | ABB ACS 800-series drive systems |
| Primary Function | DC link / supply-side power management for drive cabinets |
| Rated Voltage | Not publicly confirmed; verify from nameplate |
| Rated Current | Not publicly confirmed; verify from nameplate |
| Mounting | Drive cabinet / rack-mounted module |
| Typical Use | Drive supply control, DC link management, multi-drive or heavy-duty drive applications |
| Status | Surplus / aftermarket availability; verify OEM documentation |
Product Introduction
The ABB S-076N 3BHB009884R0021 is an industrial drive module associated with ABB ACS 800-series drive systems. It is commonly identified in surplus channels as a supply unit or DCSU-type module, meaning it supports the supply-side or DC link function within a drive cabinet rather than acting as a general-purpose PLC, I/O card, or standalone controller. In typical ACS 800 architectures, this type of module helps manage rectifier/inverter coordination, DC link stability, and drive system power distribution.
Because public listings do not publish a single authoritative datasheet for this exact material number, the S-076N should be treated as a system-dependent drive component. Its correct application depends on matching the drive frame, cabinet type, control board revision, and firmware. Before replacement, always verify the physical label, cabinet wiring diagram, and ABB drive manual to confirm whether it belongs to an ACS 800 standard drive, multidrive, or DCSU configuration.
QA/QC Transparency SOP
- Identity Verification — Confirm model S-076N and material number 3BHB009884R0021 on the physical nameplate. Check serial number, frame label, connector condition, and mounting hardware.
- Visual Inspection — Inspect power terminals, control connectors, busbar interfaces, cooling surfaces, and PCB condition. Reject units with burnt terminals, cracked insulation, or corrosion.
- Power Section Checks — Where safe and applicable, check DC link terminals, busbar contact integrity, and insulation resistance. Do not energize without confirming cabinet safety procedures.
- Control Board Verification — Verify control board seating, ribbon cables, fiber-optic links if present, and firmware/parameter accessibility through the drive control panel.
- System Compatibility Check — Confirm the target ACS 800 cabinet type, drive frame, and supply configuration. Ensure the replacement matches the original module function and revision.
- Final QC & Packaging — Record nameplate data, visual condition, test results, and compatibility notes. Pack with terminal protection and include a test summary.
Field Engineer Gotchas
- Incomplete Public Data — The S-076N 3BHB009884R0021 appears mainly in surplus listings. Do not assume voltage, current, or frame size without reading the nameplate.
- DCSU vs Standard Supply Confusion — This module may belong to a DCSU or multidrive supply configuration. Installing it in a standard single-drive cabinet without verification can cause parameter mismatches or drive faults.
- ACS 800 Sub-Type Matters — ACS 800 includes standard drives, multidrives, and specialized supply units. A module that physically fits may still require different firmware, parameters, or control boards.
- DC Link Safety — Treat DC link terminals as hazardous even after power-off. Verify discharge status before handling busbars or connectors.
- Parameter Backup Required — Replacing a supply-side module may require restoring drive parameters, motor data, and supply configuration. Back up parameters before removal.
- Revision Mismatch — Surplus units may come from different production batches. Keep control board and firmware revisions consistent unless ABB confirms interchangeability.
ABB S-076N 3BHB009884R0021
Application Scenarios
- ACS 800 drive maintenance — Used as a replacement supply or DCSU-type module when maintaining existing ABB ACS 800 drive cabinets.
- Multidrive systems — Supports DC link or supply-side functions in multidrive configurations where multiple inverters share a common supply.
- Heavy industrial drives — Applicable in mining, metals, pulp and paper, marine, or test bench applications where ACS 800 drives are installed.
- Retrofit and spare-part stocking — Sourced as a surplus spare for plants that need to maintain legacy ABB drive systems without full cabinet replacement.
FAQ
What is ABB S-076N 3BHB009884R0021?
It is an ABB drive system module, commonly referenced as a supply unit or DCSU-type module for ACS 800-series drives.
Is it a PLC or I/O module?
No. It is a drive-related power/supply module, not a PLC CPU or general-purpose I/O card.
What voltage and current does it support?
Exact ratings are not publicly confirmed. Check the physical nameplate, cabinet manual, and ABB documentation.
Can it be used in any ACS 800 drive?
No. It must match the correct ACS 800 sub-type, cabinet configuration, control board, and firmware.
Is this still in production?
Availability is mainly surplus and aftermarket. Confirm current ABB support and whether a newer equivalent module is recommended.
What should I check before buying?
Confirm 3BHB009884R0021 on the nameplate, inspect connectors and terminals, verify cabinet compatibility, and request a test report if possible.
Can I hot-swap this module?
Do not assume hot-swap capability. Follow ABB drive safety procedures, isolate power, and verify DC link discharge before replacement.
