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Product Overview
The ABB 3BHB003688R0101 is a KU C711 AE printed circuit board assembly used in ABB ACS1000 medium-voltage drive systems. ABB product data identifies it as a varnished PCB assembly, Subboard 20V, and classifies it within the spare-parts structure for electrical machinery and static converters. The board is associated with the gate-unit power supply section of the ACS1000 architecture, where correct power distribution and interface operation are essential to the converter control system. ABB records also show an earlier product reference, 3BHB003688R0001, which was replaced by the current ordering code.
For MRO teams, this should be treated as an application-specific drive PCB rather than a generic control board. Matching the full ordering code, hardware revision, coating, and target ACS1000 configuration is important before replacement. The compact assembly weighs about 0.15 kg, making it relatively easy to hold as a strategic spare.
Technical Specifications — 3BHB003688R0101
| Parameter | Value |
|---|---|
| Product Model | 3BHB003688R0101 |
| Manufacturer | ABB |
| ABB Type Designation | KU C711 AE |
| Product Type | Varnished PCB Assembly / Subboard 20V |
| Application | ABB ACS1000 medium-voltage drive |
| Functional Area | Gate-unit power supply |
| Power | Application-specific |
| Communication / Protocol | Drive-internal circuitry |
| Operating Temperature | Verify according to ACS1000 cabinet documentation |
| Mounting | ACS1000 drive assembly |
| Dimensions (HxWxD) | Verify against OEM drawing |
| Product Net Weight | Approx. 0.15 kg |
| Typical Interfaces | Internal PCB, power and control connections |
| Compliance | Application dependent; ABB product classification applies |
ABB product records explicitly identify the assembly as “KU C711 AE; PCB ass. varn. Subb. 20V,” with a net weight of 0.15 kg and use within ACS1000 products.
ABB KU C711 AE 3BHB003688R0101
Key Features and Benefits — 3BHB003688R0101
- Designed for ABB ACS1000 medium-voltage drive systems.
- KU C711 AE identification supports accurate component matching.
- Varnished PCB construction is suited to installation within the associated drive enclosure.
- Relevant to gate-unit power-supply circuitry.
- Compact spare with a documented net weight of approximately 0.15 kg.
- Current ordering code replaces the earlier 3BHB003688R0001 version.
Personally, I would verify the ACS1000 drive configuration and the board revision before installation. A PCB used in gate-unit circuitry should never be substituted solely because the connectors appear identical.
Related Models
- 3BHB003688R0001: Earlier product identification replaced by the current ABB ordering code.
- KU C711 AE: ABB type designation associated with the supplied part number.
- ABB ACS1000 gate-unit assemblies: Closely related drive components should be checked by complete ordering code.
- ABB ACS1000 power-supply boards: Similar boards may have different voltage, interface, or converter-position requirements.
Installation and Maintenance — 3BHB003688R0101
Installation should be performed by qualified medium-voltage drive personnel. Before accessing the board, isolate the ACS1000 drive, follow the approved lockout/tagout procedure, and verify DC-link discharge and absence of hazardous voltage. Use appropriate ESD protection when handling the PCB.
Check the board markings, revision, connectors, mounting points, and associated cables before installation. After replacement, inspect the gate-unit power-supply circuitry and complete the applicable ACS1000 startup and diagnostic sequence before returning the drive to service.
For inventory control, record the full part number, revision, physical condition, inspection status, and target drive compatibility.
Product Warranty — 3BHB003688R0101
Warranty coverage depends on supplier condition and purchase terms. Confirm whether the board is new, unused surplus, refurbished, or previously installed. For refurbished stock, request visual inspection and functional-test records where available, and document the agreed warranty period before shipment.
