Allen-Bradley 1756-L8SP ControlLogix Processor
Allen-Bradley 1756-L8SP GuardLogix 5580 safety partner, Redundant safety partner module that pairs with a GuardLogix 5580 primary controller to achieve SIL 3 / PLe. NJT Automation offers mail-in repair for the 1756-L8SP 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-L8SP |
| Price | On Request Previously sold for $749.99 - $1,699.99 USDAvailability and condition determine final quote. |
| Description | GuardLogix 5580 safety partner. |
| 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-L8SP 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-L8SP 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-L8SP Mail-In Repair ServiceEstimated: $1,440.00 | ||||||||
Part Number Decoder | GuardLogix 5580 safety partner 1756L8SP Redundant safety partner module that pairs with a GuardLogix 5580 primary controller to achieve SIL 3 / PLe.
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. | ||||||||
Series & Revisions | No series in stock today; request a series above. Series notes: Logix keys on catalog number and firmware revision, not series; with the default Compatible Module keying, any series of the same catalog number is accepted in the slot. | ||||||||
Intended Use | Designed for SIL 3 / PLe integrated machine safety applications. Paired with a GuardLogix primary controller, the safety partner lets one chassis handle both standard control and safety-rated functions such as e-stops, light curtains, guard-door interlocks and safe-speed monitoring on presses, robot cells, palletizers and conveyors. | ||||||||
Physical Data | Weight and DimensionsWeight0.87 lb (0.39 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. | ||||||||
Datasheet | Datasheet available for download Generated from product specifications; not an official Allen-Bradley datasheet. For an official datasheet, contact Allen-Bradley or an authorized distributor. | ||||||||
Allen Bradley Information | Technical SpecificationsLifecycle status
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| Category | ControlLogix | ||||||||
| Part Number | 1756-L8SP | ||||||||
| Manufacturer | Allen-Bradley | ||||||||
Previously sold 1756-L8SP
3 soldNJT Automation has supplied and shipped 3 1756-L8SP GuardLogix 5580 safety partners in 2024; request a quote and we will source another from our supplier network.
- Sold
- 3 in 2024
- Series
- B × 3
Can the 1756-L8SP be repaired?
Yes. NJT Automation repairs the 1756-L8SP 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 GuardLogix 5580 safety partner hardware like the 1756-L8SP:
- Safety partner will not pair with the primary controller: safety task faults or a red OK LED at power-up
- Partner lost after a power event, forcing the GuardLogix pair back to a safety-unlocked state
- Backplane connector damage from repeated insertion in the slot beside the primary
- Dead module after chassis power-supply ripple or overvoltage on the backplane
Photos by NJT Automation; test videos from NJT or network repair technicians.
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