Allen-Bradley 1756-OB8E ControlLogix Digital Output Module 8-point, 12/24V DC
Allen-Bradley 1756-OB8E ControlLogix digital output module, 8-point electronically fused 12/24V DC (10…31.2V DC) sourcing outputs. NJT Automation sources the 1756-OB8E on request; send the part number for a replacement or repair quote.
Quote required. Request a quote below for pricing and delivery.

Actual NJT inventory photos
| Part Number | 1756-OB8E |
| Price | On Request Availability and condition determine final quote. |
| Description | ControlLogix digital output module, 8-point, 12/24V DC. |
| 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-OB8E 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-OB8E 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-OB8E Mail-In Repair Service | ||||||||
Part Number Decoder | ControlLogix digital output module 1756OB8E
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. | ||||||||
Intended Use | Intended 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. | ||||||||
Similar Part Numbers |
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Allen Bradley Information | Technical SpecificationsLifecycle status
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| Category | ControlLogix | ||||||||
| Part Number | 1756-OB8E | ||||||||
| Manufacturer | Allen-Bradley | ||||||||
Can the 1756-OB8E be repaired?
Yes. NJT Automation repairs the 1756-OB8E 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-OB8E:
- Electronic fuse tripped (E-suffix modules) or point dead after a wiring short to ground
- Output transistor / triac shorted ON after a field short or inductive kick: the point cannot be turned off
- Module fault (I/O LED red) after a chassis power event
- Removable terminal block pins bent or corroded, causing intermittent points
- 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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