Allen-Bradley 1756-L8SPK PLC Controller
Allen-Bradley 1756-L8SPK PLC Controller

Disclaimer: Actual product colors may vary slightly from the images shown due to different monitor settings and lighting conditions during photo shoots.

Allen-Bradley

Allen-Bradley 1756-L8SPK PLC Controller

SKU: 1756-L8SPK
(0)
$2,577.50
Available
Free shipping over $500
100% secure payments
Industry leading quality

Got questions?

Feel free to get in touch

Ask an expert!

+86 18017464056

1756-L8SPK GuardLogix 5580 Safety Partner Controller | Allen‑Bradley

The Allen‑Bradley 1756-L8SPK is GuardLogix 5580 safety partner controller with conformal coating for 1756 ControlLogix chassis. It must be paired with a standard 5580 primary controller; combined system achieves SIL 3 / PL e safety capability. This safety partner executes independent safety logic and cross-checking diagnostics against the main CPU. Lifecycle Status: End of Life (EOL, last sale date Dec 31, 2026). Direct replacement: 1756-L8SPXT. Technical data sourced from Rockwell Automation official datasheet. Supplied by SHLY-PLC, an independent industrial automation distributor: every unit is visually inspected and functionally tested before shipment, offered as surplus spare stock for existing system maintenance. Contact our team for compatibility verification and cross reference replacement models.

Features

  • Order Code: 1756-L8SPK
  • Model: GuardLogix 5580 Safety Partner Controller (Conformal Coated)
  • Safety Rating (Combined System): SIL 3, PL e; standalone partner cannot run safety logic alone
  • Function: Coated safety partner module, paired with ControlLogix 5580 main controller for cross safety validation
  • Conformal Coating: Yes, coated PCB for corrosive, dusty industrial environments
  • Software: Programmed via Studio 5000 Logix Designer
  • Backplane: 1756 ControlLogix chassis backplane communication
  • Status Indicator: LED status indicators for diagnostics, fault and safety status
  • Mounting: Install into 1756 ControlLogix series chassis slots
  • Lifecycle: End of Life, Last Order Date: Dec 31,2026, direct replacement:1756-L8SPXT
  • Application: Machine safety spare replacement for existing GuardLogix 5580 coated systems

Specifications

Technical parameters compiled from Rockwell Automation official datasheet.

Technical Specifications
Product type GuardLogix 5580 Safety Partner Controller
Order Code 1756-L8SPK
Backplane Current Draw 5mA @1.2V DC, 1.2A @5.1V DC
Safety Certification Combined system SIL 3, PL e
Program Software Studio 5000 Logix Designer
Max Analog I/O (Full System) 4000
Communication Protocols EtherNet/IP, ControlNet, DeviceNet
Environmental & Physical
Operating temperature 0 °C to +60 °C
Storage Temperature -40 °C ~ +85 °C
Relative Humidity 5% ~ 95% RH, non-condensing
Vibration 2 m/s², up to 500Hz
Shock 30g
Conformal Coating Yes (Standard 0~60°C coated board, NOT XT extended temp)
Compliance Standards CE, UKCA, RCM, KC; IEC 60068, IEC 61000-6-4, IEC 61000-4 series

Compatibility & Cross-References

The 1756-L8SPK belongs to Allen‑Bradley GuardLogix 5580 family, fits in 1756 ControlLogix chassis. Must be paired with a standard ControlLogix 5580 main controller to implement SIL3 safety control. EOL product, direct replacement 1756-L8SPXT. Standard non-coated counterpart:1756-L8SP. Compatible with 1756 safety I/O modules including 1756-IB16S,1756-OBV8S. This listing is provided by an independent industrial-automation distributor; brand names and part numbers are used for product identification only.

Applications

  • SIL3 / PLe safety control, coated PCB for dusty, mildly corrosive industrial environments
  • Spare replacement for existing GuardLogix 5580 systems originally installed with L8SPK
  • Packaging, material handling, robotic cells with moderate contamination
  • Legacy system maintenance retrofit; new projects recommended to use replacement 1756-L8SPXT

Warranty

  • Availability: Limited surplus stock, EOL item, contact us for real-time stock status.
  • Inspection & testing: each unit is visually inspected and functionally checked before packing.
  • Delivery: orders are processed within 2-4 business days after payment confirmation; standard worldwide delivery is about 5-8 business days, express shipping is available, and orders over $500 ship free.

Warranty: 12-month seller warranty provided by SHLY-PLC. See our Return Policy for coverage and claims.

Independent supplier: Allen‑Bradley part 1756-L8SPK is supplied by SHLY-PLC, an independent industrial-automation distributor. Brand names and part numbers are used for product identification and remain the property of their respective owners; this listing is not affiliated with, sponsored or endorsed by the manufacturer.
Important Note: This is End-of-Life component. New build projects should select 1756-L8SPXT as the direct replacement.

Frequently Asked Questions

Q: What is 1756-L8SPK used for?

A: GuardLogix 5580 safety partner controller with conformal coating, standard temperature range 0~60°C. It pairs with ControlLogix 5580 CPU for SIL3/PLe safety logic, for systems needing protection against dust and mild corrosive gas.

Q: What is difference between 1756-L8SPK and 1756-L8SPXT?

A: Both conformal coated. 1756-L8SPK: standard temperature range (0~60°C, EOL). 1756-L8SPXT: XT extended temperature -25~+70°C, active product, direct functional replacement for L8SPK.

Q: Can 1756-L8SPK run standalone without main controller?

A: No, it cannot operate independently. It requires matching ControlLogix 5580 main controller in same chassis to work as safety partner set.

1756-L8SPK · Technical reference data · Independently supplied by SHLY-PLC

Standard International (tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders of $500 or less; free on orders over $500.

Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.

Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Remote-area and overweight surcharges, where applicable, are shown before checkout.

Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use. Manufacturer or factory warranty service is not applicable, and extended warranty packages are not provided.

This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
★★★★★

No reviews yet. Be the first to review this product!