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1756-L71SK Allen-Bradley
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1756-L71SK Allen-Bradley

$0.00 - $10,901.90
$10,901.90
$0.00 - $10,901.90
$10,901.90
Surplus - Tested (With Warranty)
Get Pricing ~5 mins
New / Open-Box Surplus
Need a Specific Revision?
$10,901.90
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The 1756-L71SK is an Allen-Bradley GuardLogix 5570 safety-enabled controller within the ControlLogix family. It combines standard control and integrated safety tasks in one module, featuring 2 MB user program memory and 1 MB safety memory. It supports up to 128 000 I/O points and includes conformal coating for industrial environments. Typical applications include safety-critical systems in manufacturing, process automation, machinery control, and integrated safety and logic architectures.

Best Suited For

  • Integrated safety and standard control applications
  • High-density I/O systems up to 128 000 points
  • Environments requiring conformal coating protection
  • ControlLogix chassis-based installations
User memory
2 MB
Safety memory
1 MB
Maximum I/O
128 000
Power dissipation
2.5 W
Current draw @ 5.1 V DC
800 mA

Technical Specifications

I/O & Electrical

User memory
2 MB
Safety memory
1 MB
I/O memory
0.98 MB
Maximum digital I/O
128 000
Maximum analog I/O
4 000

Communication & Power

Current draw @ 1.2 V DC
5 mA
Current draw @ 5.1 V DC
800 mA
Power dissipation
2.5 W
Thermal dissipation
8.5 BTU/hr
Isolation voltage (USB port-to-system)
30 V (continuous), basic insulation

Physical & Environmental

Weight, approx
0.25 kg (0.55 lb)
Slot width
2 slots
Chassis compatibility
1756-A4/A4K, A7/A7K, A10/A10K, A13/A13K, A17/A17K
Operating temperature
0 °C to +60 °C (32 °F to 140 °F)
Enclosure type rating
None (open-style)
Corrosive atmosphere rating
ANSI/ISA 71.04-2013 G3; IEC 60721-3-3 CX

Certifications

Semiconductor Industry ImmunityChina CCCSafetyATEXIECExAustralian RCMABSUK EXEEC

Conformally coated. Certified per Semiconductor Industry Immunity, China CCC, Safety, ATEX, IECEx, Australian RCM, American Bureau of Shipping, UK EX Certificate, Eurasian Economic Community as of May 19, 2026.

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

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Must Read: Disclaimer

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