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Allen-Bradley 1791-16AC – Ready to Ship / Pick Up

In stock: 1791-16AC B Block I/O Input Output Module 179116AC. NJT Automation has 1 unit available in Milwaukee, WI, ready to ship or available for local pickup. Includes a one-year full-function warranty.

$599.99USD

Request Repair QuoteEstimated $1,440.00
Part Number1791-16AC
DescriptionAllen-Bradley 1791-16AC B Block I/O Input Output Module 179116AC. Block I/O Module, 120V AC, 32 Points, 16 Inputs, 16 Ouputs. In stock in used condition, Series B.
Shipping
Ships today 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
Included
1 year, full-function
2 years
+15% of product price ($90.00)
3 years
+25% of product price ($150.00)
View full warranty policy
Returns
90-day free returns. View return policy
Exchange

Send us your defective 1791-16AC after your purchase for a 10% core credit ($60). We also purchase old or damaged parts outright.

Replacement Options for 1791-16AC

In stock and ready to ship today

Allen Bradley 1791-16AC /B Block I/O Input Output Module 179116AC

$599.99 USDIn-stock match

Condition: Used

Series B

1 in stock

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Availability
Similar Match Available

A similar unit is in stock and ready to ship once you confirm the condition you need.

Variants
Part NumberConditionSeriesQtyPrice
1791-16AC /B$599.99
Used · Series B · 1 in stock
1791-16AC /BUsedSeries B1$599.99 USD

1791-16AC

Refurbished — pick series, then request a quote

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1791-16ACRefurbished—Request Quote
Repairs

1791-16AC Mail-In Repair Service

Estimated: $1,440.00

Physical Data

Weight and DimensionsBox12 × 10 × 8 in.
Shipping Box (L × W × H)12 × 10 × 8 in. (305 × 254 × 203 mm)
Most common box recorded for this catalog number
Shipping box and weight are recorded from previous shipments of this catalog number and are provided for freight planning.

Allen Bradley Information

Block I/O Module, 120V AC, 32 Points, 16 Inputs, 16 Ouputs.

Alternate Part Numbers

179116AC
CategoryCompactblock
Part Number1791-16AC
ManufacturerAllen-Bradley
Previously sold 1791-16AC3 sold

NJT Automation has supplied and shipped 3 1791-16AC B Block I/O Input Output Module 179116ACs since 2025; these listings are sold and the in-stock options above are ready to ship.

Sold
3 since 2025
Price range
$650 – $800
By condition
Used (3)$650 – $800
Series
B × 3

Used 1791-16AC B Block I/O Input Output Module 179116ACs have sold for $650 – $800.

Allen-Bradley 1791-16AC Used - previously sold by NJT AutomationSold

Allen Bradley 1791-16AC /B Block I/O Remote Module 120VAC 150mA 60Hz 179116AC

$799.99 USD

Used

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Can the 1791-16AC be repaired?

Yes. NJT Automation offers mail-in repair for the 1791-16AC, including diagnostic evaluation, component-level repair, and functional testing.

NJT Managed Repair

One vendor. One warranty. NJT manages the entire process.

  • 1-year full-function NJT warranty, with 2- and 3-year options available
  • Rush service available for production-critical repairs
  • No evaluation or diagnostic charges
  • No repair, no charge
  • "Unrepairable" is not an option
  • Pre-paid UPS shipping label provided for sending your unit in
  • $650 minimum repair charge, shipping included both ways
Get an NJT Repair Quote

Looking for another option? For lower-cost repairs or if you prefer to work directly with an independent repair specialist, compare bids through RepairMode. RepairMode providers operate independently and set their own pricing and warranty terms.

Find a repair specialiston RepairMode.com ↗

Repair or replace?

ReplaceI/O cards like the B Block I/O Input Output Module 179116AC are the easiest modules to swap: same slot, same wiring, no setup. Replace the 1791-16AC when a channel is dead and the machine needs to run now. We stock the 1791-16AC. Order by 5:00 PM Central for same-day shipping.
RepairA single blown point on the 1791-16AC is a component-level repair (a driver, input channel or on-board fuse), so repair pays when replacements are scarce or you have several cards with a few bad channels each. Expect estimated $1,440.00 for the 1791-16AC repair, with full-function testing and a 1-year warranty included.

Functional test video

Bench test from a completed 1791-16AC repair.

RepairMode test video for 1791-16AC

Request a Repair Quote

Text photos of the faulty unit and the symptoms to (414) 331-5954.

Start Your Repair Today
Related services:All Repair Services

All product photos were taken by NJT Automation. Test videos originated from either NJT Automation internally or from repair technicians within our network.

Still have questions?

Find answers to shipping, warranties, repairs, and more.

NJT Automation currently has 1 unit of the 1791-16AC in stock in used condition (Series B). Each listing states its own condition and series. Clean used pull with full functionality. Minimal cosmetic wear and backed by our 1-year warranty.
At NJT Automation, 3 1791-16AC B Block I/O Input Output Module 179116ACs have sold since 2025 for $650 – $800. Right now 1 unit is in stock at $600, depending on condition and series.
NJT Automation has 1 unit of the 1791-16AC on the shelf in Milwaukee, WI, priced from $599.99. Orders placed before 5:00 PM Central on business days ship the same day; orders placed after the cutoff ship the next business day.
Yes. UPS Next Day Air is available at checkout for the 1791-16AC. Place your order before 5:00 PM Central on a business day and your in-stock item ships the same day for next-business-day delivery.
Yes. Free local pickup is available for the 1 in-stock 1791-16AC unit at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours. Contact us to arrange a pickup time.
Disclaimer

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Independent Supplier

NJT Automation is an independent supplier of surplus, refurbished, and pre-owned industrial automation equipment. Unless expressly stated otherwise, NJT Automation is not an authorized distributor, dealer, representative, or affiliate of the original equipment manufacturer (OEM) for any products offered on this website.

Product Condition & Warranty

Products sold by NJT Automation may be surplus inventory, discontinued models, older series, or units with earlier manufacturing date codes than those currently available from the OEM or its authorized distribution network. As NJT Automation is not an authorized distributor, manufacturer warranties, support programs, and other OEM services may not apply. Any warranty provided is solely that of NJT Automation, where applicable.

Firmware & Software Licensing

Certain programmable logic controllers (PLCs), drives, HMIs, and other electronic products may require firmware to operate. While some products may include firmware, NJT Automation makes no representations or warranties regarding whether firmware is installed, the firmware version or revision level, its compatibility with your application, or its licensing status.

NJT Automation does not provide, obtain, transfer, or license firmware on behalf of customers. We make no representation regarding your ability or legal right to obtain, download, install, or use firmware from the OEM, its authorized distributors, or any other source. It is the customer's sole responsibility to ensure compliance with all applicable End User License Agreements (EULAs), software licenses, intellectual property rights, and other terms governing the acquisition, installation, and use of firmware.