Allen-Bradley 20B-VECTB-D0 PowerFlex 700 Drive
In stock: 1 unit in Milwaukee, WI. Physically stocked and ready to ship or available for local pickup. Includes a 1-year full-function warranty.
Vector control cassette for PowerFlex 700 drives with 115V AC digital I/O · no encoder feedback: converts a standard-control drive (catalog position k = A/B/N) to vector control (C/D)

Actual NJT inventory photos
Price
$1,249.99USD
Used units available
| Part Number | 20B-VECTB-D0 |
| Description | PowerFlex 700 vector control option board. In stock in used condition, Series B. |
| Shipping | Ships same or next business day UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout |
| Pickup | Free local pickup at 2122 N Prospect Ave. Call ahead at (414) 331-5954. |
| Warranty | 1-year full-function warranty provided by NJT Automation. Warranty details
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| Returns | 90-day free returns. View return policy |
| Exchange | Send us your defective 20B-VECTB-D0 after your purchase for a 10% core credit ($125). We also purchase old or damaged parts outright. |
Replacement Options for 20B-VECTB-D0
Pick a condition and series below. UPS Ground shipping included.
| Variants | Part NumberConditionSeriesQtyPrice 20B-VECTB-D0 /B$1,249.99 Used · Series B · 1 in stock20B-VECTB-D0 /BUsedSeries B1$1,249.99 USD | ||
| Availability | 1 unit in stock | ||
| Repairs | 20B-VECTB-D0 Mail-In Repair ServiceEstimated: $1,440.00 | ||
Part Number Decoder | PowerFlex 700 vector control option board 20BVECTBD0
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. | ||
Series & Revisions | Series B in stock; other series on request. | ||
Intended Use | Intended for high-performance vector drive applications. PowerFlex 700 drives handle extruders, winders, cranes and hoists, centrifuges and large conveyors with flux vector control and encoder feedback. | ||
Migration Path | Rockwell Automation has discontinued the PowerFlex 700. Published successor for the PowerFlex 700: PowerFlex 753 (20F) or PowerFlex 755 (20G).
A like-for-like replacement or a repair keeps the existing program, wiring and panel layout; a migration is a project. Both are listed on this page so the choice can be made on lead time and budget. | ||
Physical Data | Weight and DimensionsBox10 × 8 × 6 in.
Shipping box and weight are recorded from previous shipments of this catalog number and are provided for freight planning. | ||
Allen Bradley Information | Technical SpecificationsLifecycle status
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| Category | PowerFlex 700 | ||
| Part Number | 20B-VECTB-D0 | ||
| Manufacturer | Allen-Bradley | ||
Can the 20B-VECTB-D0 be repaired?
Yes. NJT Automation repairs the 20B-VECTB-D0 by mail-in: diagnostic evaluation, component-level repair and a functional test, backed by a 1-year full-function warranty.
NJT managed repair. No evaluation fee; no repair, no charge. Prepaid UPS label both ways, $650 minimum, rush available. 1-year full-function warranty included, 2- and 3-year options.
Compare quotes from independent repair technicians. Post your repair on RepairMode to receive competitive bids from experienced technicians. Each technician sets their own pricing and warranty.
Find a VFD repair specialiston RepairMode.com ↗Common PowerFlex 700 failures
Failure patterns we regularly see on PowerFlex 700 hardware like the 20B-VECTB-D0:
- Precharge relay failures that leave the drive stuck in precharge
- DC bus capacitor failure causing undervoltage trips or a drive that will not precharge
- Cooling fan failure and heatsink overtemperature faults
- IGBT / power structure failure after motor or grounding faults
- Control board failures, including no-display and no-response conditions
Photos by NJT Automation; test videos from NJT or network repair technicians.
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