ABB 3BHE026866R0001 DC Link Choke

ABB 3BHE026866R0001 — Stop the Clock on Your Downtime. Ship Today.

Every hour your ACS800, ACS880, or DCS800 drive sits offline, the losses compound. A failed DC link choke is one of the most misdiagnosed causes of drive shutdown — often flagged as an IGBT fault or capacitor failure before the root cause is traced back to the inductor. If you’re holding a fault code and a dead drive, the 3BHE026866R0001 is likely what you need. We stock it. We ship it today.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

How to confirm the choke has failed before ordering:

Power down the drive and isolate all AC/DC supply. Discharge the DC bus — wait a minimum of 5 minutes and verify bus voltage below 50 V with a calibrated meter. Remove the choke terminals. With a LCR meter set to 100 Hz or 1 kHz, measure inductance across both winding terminals. A healthy 3BHE026866R0001 will read within the rated inductance band; a shorted winding reads near 0 µH, an open winding reads OL. Also perform a winding-to-core insulation resistance test at 500 V DC — anything below 100 MΩ indicates insulation breakdown and confirms replacement is necessary.

Common fault codes that point to this component:

• ACS800 / ACS880: Fault 3210 (DC overvoltage), Fault 3220 (DC undervoltage), Fault 2310 (overcurrent) — all can be triggered by a degraded choke allowing excessive ripple current into the capacitor bank.
• DCS800: F504 (field overcurrent), F522 (armature overcurrent) — a failing DC choke increases ripple on the armature circuit, causing nuisance trips under load.
• Intermittent drive trips under heavy load with no clear cause: classic symptom of a choke with partial winding short — inductance drops under thermal stress, ripple spikes, capacitors absorb the hit and eventually fail.

Step-by-step replacement procedure:

1. Record all drive parameters using DriveWindow or the ACS control panel before any hardware work. A parameter backup takes 2 minutes and saves hours of re-commissioning.
2. Isolate and lock out the drive per your site LOTO procedure. Verify zero energy state on both AC input and DC bus.
3. Photograph the existing choke wiring orientation before disconnecting — terminal polarity matters on DC link inductors.
4. Remove the two bus bar bolts (typically M8 or M10) connecting the choke to the rectifier output and capacitor bank. Note torque spec from the drive service manual — typically 20–25 Nm for M8 copper bus connections.
5. Slide out the 3BHE026866R0001 from its mounting bracket. The replacement unit is dimensionally identical — direct bolt-in, no bracket modification required.
6. Torque bus bar connections to spec. Do not over-torque — copper bus bars deform and create high-resistance joints that generate heat under load.
7. Restore power, clear fault history, and run the drive unloaded for 10 minutes. Monitor DC bus voltage ripple if you have a scope — should be clean with no oscillation above the rated ripple spec.
8. Ramp to full load and verify thermal performance over 30 minutes. Log ambient and choke surface temperature if accessible.

Configuration note: The 3BHE026866R0001 is a passive component — no firmware parameters, DIP switches, or address settings are required. However, if the drive was previously running with a degraded choke, the DC bus capacitors may have absorbed excess ripple stress. Inspect capacitor ESR if the drive continues to fault after choke replacement.

Reliability in Harsh Conditions

The 3BHE026866R0001 is wound to ABB’s drive-grade magnetics specification — not a commercial-grade inductor repurposed for industrial use. The distinction matters in the field. Class F insulation (rated to 155 °C) means the winding survives continuous thermal cycling in poorly ventilated drive cabinets where ambient temperatures routinely exceed 45 °C. The core material is selected for low core loss at the switching frequencies present in ABB’s IGBT inverter stages, which means the choke runs cooler than generic alternatives under identical load conditions.

Vibration resistance is built into the winding construction — the coil is vacuum-impregnated with varnish, locking the winding in place against the mechanical shock and vibration loads common in steel mills, compressor stations, and marine propulsion systems. In offshore and coastal installations where salt-laden air accelerates corrosion, the varnish layer also provides a barrier against moisture ingress into the winding insulation.

Each unit leaving our Xiamen warehouse has passed incoming inspection: visual check for physical damage, winding continuity test, and insulation resistance measurement at 500 V DC. We do not ship units that fail any of these checks. If you need a certificate of conformance or incoming inspection report for your MRO records, request it at the time of order — no additional charge.

Global Express Logistics

Our warehouse is located in Xiamen, Fujian Province — one of China’s primary export hubs with direct access to DHL, FedEx, and UPS international express networks. For urgent replacement orders, we prioritize same-day or next-morning dispatch for orders confirmed before 14:00 CST.

Typical transit times from Xiamen:

• Southeast Asia (SG, MY, TH, VN): 2–3 business days via DHL Express
• Europe (DE, NL, PL, UK): 3–5 business days via FedEx International Priority
• North America (US, CA): 3–5 business days via DHL Express Worldwide
• Middle East (AE, SA, QA): 3–4 business days via FedEx International Priority
• Australia / New Zealand: 3–4 business days via DHL Express
• South America (BR, CL, AR): 5–7 business days — customs clearance times vary

All shipments include a tracking number issued within 2 hours of dispatch. For critical plant shutdowns, contact us directly via WhatsApp for real-time shipment coordination — we can arrange Saturday dispatch and provide airway bill details before you close the purchase order.

Export documentation: commercial invoice, packing list, and certificate of origin are standard. For regulated industries requiring additional documentation (MSDS, CoC, test reports), specify at order placement. We handle customs classification under HS Code 8504.50 (inductors for industrial use) — no surprises at customs clearance.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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