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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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Allen-Bradley 1391B-ESAA45-AQB AC Servo Controller

$7,999.00 USD

Sale Sold out

ConditionSurplus - Untested MPN1391B-ESAA45-AQB Stock #0226-00754

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 55.0 lbs

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The Allen-Bradley 1391B-ESAA45-AQB is a Bulletin 1391 AC Servo Controller rated for 230V AC, 3 phase, 50/60 Hz input at 38 amps, with a control transformer input of 36V, 1 phase at 5.5 amps. AC output is 210V, 3 phase, 0 to 200 Hz at 45 amps and 14 kW. The unit carries catalog number 1391B-ESAA45-AQB and references instruction manual 1391ES-5.0. Front panel indicators include overtemperature, power fault, control power, overvoltage, undervoltage, current foldback, run enable, and drive ready. A velocity offset adjustment trimmer is accessible on the face of the unit. The enclosure houses an integral cooling fan visible on the rear panel. This unit is the A Quad B encoder feedback variant, as indicated by the AQB suffix in the catalog number. The drive is manufactured in the USA and is part of the discontinued Bulletin 1391 product family from Rockwell Automation. Max symmetrical RMS short circuit current rating is 1300 amps. Serial number on the nameplate reads MEAA0NU8. A service history sticker from STI and a Lawrence Electronics label are present on the front of the enclosure.

Stock # 0226-754

Please Note: This unit is surplus inventory, sold as-is from MRO Exchange surplus stock. Allen-Bradley is a trademark of Rockwell Automation, Inc. MRO Exchange is an independent reseller and is not an authorized distributor of Rockwell Automation. Product may differ from units available through authorized distributors in date code, country of origin, packaging, accessories, or firmware revision. The warranty from the manufacturer does not apply.

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.