Allen-Bradley 1746-IO12 SLC 500 12-point, 120V AC

Allen-Bradley 1746-IO12 SLC 500 digital combination module: 6 × 100/120V AC inputs and 6 × relay outputs, 1746 chassis mount. NJT Automation sources the 1746-IO12 on request; send the part number for a replacement or repair quote.

Quote required. Request a quote below for pricing and delivery.

Allen-Bradley 1746-IO12 SLC 500 digital combination module, 12-point, 120V AC – Series B (1 of 8)

Actual NJT inventory photos

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Part Number	1746-IO12
Price	On Request Availability and condition determine final quote.
Description	SLC 500 digital combination module, 12-point, 120V AC.
Shipping	UPS Ground included \| Next-Day Air and Worldwide Shipping available at checkout
Warranty	1-year full-function warranty provided by NJT Automation. Warranty details Included 1 year, full-function 2 years +15% of product price 3 years +25% of product price View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1746-IO12 after your purchase for a 10% core credit. We also purchase old or damaged parts outright.

Availability

Sourced on request

We do not have a 1746-IO12 on the shelf right now. We can source one through our supplier network; request a quote and we confirm availability, price and lead time before you commit.

Sourcing

Sourced through our Level 1 network of vetted US suppliers. Each unit is checked before it ships and carries the same NJT warranty and return policy as our own stock. Quotes within one hour during business hours; typical delivery 3–5 business days, next-day air available. Sourced parts are not available for local pickup.

Request Quote How Level 1 sourcing works

Repairs

1746-IO12 Mail-In Repair Service

Part Number Decoder

SLC 500 digital combination module

1746IO1212

1746: BulletinSLC 500 I/O bulletin: chassis, power supplies and I/O modules for the SLC 500 modular system (processors are bulletin 1747).
IO12: Module typeDigital combination module: 6 × 100/120V AC inputs and 6 × relay outputs.
12: Point count12-point module.
120V AC / relay: Voltage / signal type120V AC / relay field side.

Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here.

Intended Use

Built for on-off actuation of valves, contactors and indicators applications. Solid-state outputs switch 24V DC or AC loads such as solenoid valves, contactor coils and indicator lights on SLC 500-controlled machines and process skids.

Migration Path

Rockwell Automation has discontinued the SLC 500 platform, including 1746 I/O. Published successor for the SLC 500 1746 I/O: the equivalent Compact 5000 (5069) or 1769 Compact I/O module.

With a 1747-AENTR in slot 0, the existing 1746 rack can keep running as EtherNet/IP remote I/O under a CompactLogix or ControlLogix, so I/O modules can be replaced like-for-like until the rack is converted.
1492-CM1746 conversion modules and pre-wired cables land the existing 1746 terminal-block wiring on the new module without re-terminating field devices.

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 DimensionsEst. weight0.82 lb (0.37 kg)H × W × D5.7 × 1.4 × 5.7 in. (145 × 35 × 145 mm)

Estimated Weight	0.37 kg (0.82 lb) Estimated from the product dimensions and typical density for this product type
Dimensions (H × W × D)	145 × 35 × 145 mm (5.7 × 1.4 × 5.7 in.) Single-slot SLC 500 module envelope; 35 mm slot pitch
Shipping Weight	0.90 kg (1.98 lb) Estimated: unit weight plus box and packing material; bills as 2 lb
Shipping Box (L × W × H)	12 × 12 × 8 in. (305 × 305 × 203 mm) Smallest standard box fitting the product with 3 in. cushioning per side

Product dimensions are typical manufacturer-published values and may differ by series or option. Unit weight is an estimate; no published figure is available for this catalog number. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box.

Allen Bradley Information

Technical SpecificationsLifecycle status

Lifecycle	Active Verify current status with the manufacturer.

Can the 1746-IO12 be repaired?

Yes. NJT Automation repairs the 1746-IO12 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.

Get a repair quoteor text photos and symptoms to (414) 331-5954

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.

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Common failures

Failure patterns we regularly see on SLC 500 digital combination module hardware like the 1746-IO12:

Output transistor / triac shorted ON after a field short or inductive kick
Blown output fuse (fused modules) or dead point after a wiring short
Group of outputs dead after loss of the field common for that group
Weak / leaking outputs that let a load chatter
Terminal block or backplane connector wear causing intermittent points

Related services:PLC Repair All Repair Services

Photos by NJT Automation; test videos from NJT or network repair technicians.

Still have questions?

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

Frequently Asked Questions

What is the 1746-IO12?

The Allen-Bradley 1746-IO12 is an SLC 500 digital combination module: 6 × 100/120V AC inputs and 6 × relay outputs, 1746 chassis mount.

What condition is it in?

The 1746-IO12 may be available on request in Unused surplus / Refurbished / Used condition. We can quote this part in unused surplus, refurbished, or used condition depending on availability and your preference. Specify your requirement in the RFQ.

When does this part ship?

The 1746-IO12 is sourced on request. Request a quote and we'll confirm availability and lead time, typically a few business days.

How many I/O points does it have?

12-point module.