Allen-Bradley 1756-OA8D ControlLogix 8-point, 120/240V AC
Allen-Bradley 1756-OA8D ControlLogix digital output module, 8-point diagnostic 120/240V AC (74…265V AC) outputs. NJT Automation offers mail-in repair for the 1756-OA8D with a 1-year warranty; replacement pricing is available on request.
Mail-in repair available now. Returned with a 1-year warranty. Replacement pricing on request.
Actual NJT inventory photos
| Part Number | 1756-OA8D |
| Price | On Request Previously sold for $649.99 USDAvailability and condition determine final quote. |
| Description | ControlLogix digital output module, 8-point, 120/240V 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
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| Returns | 90-day free returns. View return policy |
| Exchange | Send us your defective 1756-OA8D 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 1756-OA8D 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. | ||||||||
| Repairs | 1756-OA8D Mail-In Repair ServiceEstimated: $1,440.00 | ||||||||
Part Number Decoder | ControlLogix digital output module 1756OA8D
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. | ||||||||
Intended Use | Designed for valve, contactor and indicator switching applications. Solid-state outputs switch 24V DC or AC loads such as solenoid valves, pneumatic manifolds, contactor coils and stack lights at high cycle rates on packaging, assembly and material-handling machines. | ||||||||
Physical Data | Weight and DimensionsWeight0.66 lb (0.30 kg)H × W × D5.7 × 1.4 × 5.7 in. (145 × 35 × 145 mm)
Product weight and dimensions are typical manufacturer-published values and may differ by series or option. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box. | ||||||||
| Category | ControlLogix | ||||||||
| Part Number | 1756-OA8D | ||||||||
| Manufacturer | Allen-Bradley | ||||||||
Previously sold 1756-OA8D
1 soldNJT Automation has supplied and shipped one 1756-OA8D ControlLogix digital output module in 2024; request a quote and we will source another from our supplier network.
- Sold
- 1 in 2024
Can the 1756-OA8D be repaired?
Yes. NJT Automation repairs the 1756-OA8D 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 PLC repair specialiston RepairMode.com ↗Common failures
Failure patterns we regularly see on ControlLogix digital output module hardware like the 1756-OA8D:
- Module fault (I/O LED red) after a chassis power event
- Output transistor / triac shorted ON after a field short or inductive kick: the point cannot be turned off
- Electronic fuse tripped (E-suffix modules) or point dead after a wiring short to ground
- Group of outputs dead when the field power / common for that group has been lost
- Output points weak or leaking: driving a load that chatters
Photos by NJT Automation; test videos from NJT or network repair technicians.
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