ABB 3BHE026866R0001 DC Link Choke Replacement for ACS800

Product Overview

ABB 3BHE026866R0001 DC Link Choke: Seamless Replacement & Upgrade for ACS800 / ACS880 / DCS800 Drive Systems

The ABB 3BHE026866R0001 is a DC Link Choke designed for use in ABB’s high-performance variable-speed drive platforms, including the ACS800, ACS880, and DCS800 series. As these drive families continue to serve critical roles in industrial motor control, paper mills, metal processing, marine propulsion, and heavy manufacturing, the demand for verified replacement components — particularly passive filtering and choke assemblies — remains high. Whether you are managing a planned maintenance window, responding to an unscheduled drive fault, or executing a full drive cabinet modernization, the 3BHE026866R0001 DC Link Choke provides a direct, drop-in replacement path that minimizes engineering rework and commissioning time.

This component functions as a DC bus inductor within the drive’s intermediate DC circuit, smoothing current ripple between the rectifier stage and the inverter bridge. Proper operation of the DC link choke is essential for protecting the drive’s IGBT modules, reducing harmonic distortion on the supply network, and ensuring stable torque output to the connected motor. When the original choke degrades — typically indicated by increased drive temperature, nuisance overcurrent trips, or audible buzzing from the DC bus — replacement with a genuine or fully compatible 3BHE026866R0001 restores the drive to factory-specified performance without requiring firmware changes or parameter re-mapping.

TOPNLMS maintains verified stock of the 3BHE026866R0001 and ships globally from our Xiamen warehouse. Each unit undergoes pre-shipment inspection including inductance measurement, insulation resistance testing, and visual inspection of winding integrity and terminal condition. Orders are processed within 1–2 business days, with DHL Express, FedEx International Priority, and sea freight options available depending on urgency and destination.

Compatibility Comparison Table

Seamless Upgrade Solutions

A DC link choke replacement is rarely performed in isolation. In most ACS800 and ACS880 drive modernization projects, the choke swap is part of a broader effort to restore or upgrade the drive’s internal power electronics. During the same maintenance window, engineers frequently replace the ACS800 IGBT inverter module if thermal stress has caused junction degradation, or swap out the ACS880 brake chopper unit when dynamic braking performance has declined. On DCS800 DC drive platforms, the choke replacement often accompanies renewal of the DCS800 thyristor bridge assembly and the associated DCS800 field excitation board, both of which are subject to long-term wear in continuous-duty applications such as winding machines and extruders.

For sites upgrading from legacy ACS600 or ACS400 drives to the ACS880 platform, the 3BHE026866R0001 choke is part of the new drive’s internal BOM, and the migration project typically also involves replacing the RDCO-02 or RDCO-03 DDCS communication adapter with the ACS880’s native FENA-21 Ethernet adapter module or FPBA-01 PROFIBUS adapter, depending on the plant’s fieldbus infrastructure. Terminal block adapters and cable re-termination kits are commonly sourced alongside the choke to avoid rewiring the existing motor cable glands and control wiring looms.

In cabinet-level retrofits, the choke replacement is coordinated with renewal of the ACS800 or ACS880 control unit (RMIO or ZCU board), the drive’s main contactor and input fuse assembly, and — where harmonic compliance is required — an upstream ABB ACH550 or ACS355 line filter module. Sites operating multiple drives on a common DC bus may also require inspection and potential replacement of the common DC bus capacitor bank and the associated pre-charge resistor assembly. TOPNLMS can source all of these components and coordinate consolidated shipment to reduce freight costs and simplify goods receipt at the plant.

Retrofit Guidance FAQ

Q: Does replacing the 3BHE026866R0001 require any parameter changes in the ACS800 or ACS880 drive?
A: No. The DC link choke is a passive inductive component with no electronic interface to the drive’s control system. Replacement does not require any changes to drive parameters, application macros, or fieldbus configuration. After mechanical reinstallation and reconnection of the DC bus terminals, the drive can be powered up and tested without any software intervention.

Q: Can the original wiring be reused when installing the replacement choke?
A: Yes, in virtually all cases. The 3BHE026866R0001 uses the same terminal geometry and bolt pattern as the original OEM component. Existing DC bus busbars or flexible cables can be reconnected directly. Inspect the terminal surfaces for oxidation or arc damage before reconnection and apply appropriate contact grease if required by site maintenance standards.

Q: Is this choke compatible with both the ACS880 single-drive and multi-drive cabinet configurations?
A: The 3BHE026866R0001 is specified for particular frame sizes within the ACS800 and ACS880 families. Please confirm your drive’s frame size and power rating against the ABB hardware manual for your specific drive type before ordering. TOPNLMS technical support can assist with cross-referencing if you provide your drive’s full type code from the nameplate.

Q: What is the typical installation time for this replacement?
A: For a technician familiar with ABB drive cabinet layouts, the mechanical replacement of the DC link choke typically takes 1–3 hours, including isolation, discharge of the DC bus capacitors (mandatory — allow minimum 5 minutes after power-off before opening the cabinet), disconnection of terminals, component swap, reconnection, and insulation resistance verification before re-energization.

Q: Can this component be used in a DCS800 DC drive replacing an older DCS500 system?
A: The DCS800 uses a different internal architecture from the DCS500, and choke specifications differ between platforms. If you are migrating from a DCS500 to a DCS800, the new DCS800 drive will include its own specified choke as part of the drive assembly. The 3BHE026866R0001 is a replacement for an existing DCS800 installation, not a cross-platform migration component. Contact TOPNLMS for DCS500-to-DCS800 migration component lists.

Warranty Assurance

Every 3BHE026866R0001 DC Link Choke shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Our warranty covers manufacturing defects, premature electrical failure under normal operating conditions, and any discrepancy between the delivered component and the ordered specification. If a warranty claim is raised, TOPNLMS will arrange replacement shipment or credit within 5 business days of receiving the returned defective unit and completing incoming inspection.

Pre-shipment quality checks include: inductance value verification against OEM specification, insulation resistance test at 500V DC between winding and core, visual inspection of terminal condition and winding insulation, and packaging integrity check to prevent transit damage. Units are shipped in anti-static protective packaging with foam cushioning, and each shipment includes a packing list and, where available, a test record.

For urgent plant breakdowns, TOPNLMS offers priority processing with same-day dispatch for orders confirmed before 14:00 CST. DHL Express delivery to most destinations in Asia, Europe, and the Americas is available within 3–7 business days. For large-volume orders or ongoing maintenance contracts, framework pricing and reserved stock arrangements are available — contact our sales team to discuss your site’s requirements.

For procurement inquiries, technical cross-referencing, or shipping quotations, contact TOPNLMS directly:

📧 [email protected] | 📞 +86 18359293191

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