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Allen-Bradley 1756-L73SK GuardLogix safety controller, 8MB memory, SIL 3, redundant, ControlLogix system, dual-processor module.

Allen-Bradley 1756-L73SK

SKU: 1756-L73SK
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$5,800.00
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Allen-Bradley 1756-L73SK | Redundant Safety Controller with SIL 3 for ControlLogix Systems

Overview

The Allen-Bradley 1756-L73SK is a high-performance GuardLogix 5570 series controller that combines safety and standard control in a redundant ControlLogix architecture. With 8MB user memory and SIL 3 / PLe safety rating, it’s engineered for critical applications that require fault tolerance, high availability, and advanced motion, process, or discrete control.

Key Features

  • GuardLogix 5570 Series controller

  • 8MB standard memory + 4MB safety memory

  • Safety integrity level: SIL 3, PLe, Cat 4

  • Dual-processor architecture for safety and standard logic separation

  • Designed for ControlLogix redundancy chassis

  • Supports Studio 5000 Logix Designer software

  • Compatible with ControlNet, EtherNet/IP, DeviceNet via modules

  • USB programming port

  • Advanced diagnostics and fault protection

  • Hot-swappable in ControlLogix chassis

Technical Specifications

  • Catalog Number: 1756-L73SK

  • Standard Memory: 8MB

  • Safety Memory: 4MB

  • Non-Volatile Memory: 1784-SD1 (1GB SD card included)

  • Battery: 1756-BA2 for memory backup

  • Communication: USB (standard), backplane-based for network modules

  • Operating Temp: 0°C to 60°C

  • Power Consumption: 1.1 A @ 5.1V DC, 3 mA @ 24V DC

  • Certifications: UL, cUL, TUV, CE, ATEX, RoHS

Applications

  • Oil and gas platforms

  • High-availability process systems

  • Pharmaceutical manufacturing

  • Automotive assembly lines

  • Safety-critical material handling

Why Choose the 1756-L73SK?

  • Combines standard and safety control in a single module

  • Supports ControlLogix redundancy for fault-tolerant applications

  • SIL 3 / PLe certified for high-risk environments

  • Seamless integration with Rockwell Automation architecture

  • Expandable and scalable for complex automation systems

Order Now

Now available and ready to ship worldwide. 

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.
1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.
Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.

Description

Allen-Bradley 1756-L73SK | Redundant Safety Controller with SIL 3 for ControlLogix Systems

Overview

The Allen-Bradley 1756-L73SK is a high-performance GuardLogix 5570 series controller that combines safety and standard control in a redundant ControlLogix architecture. With 8MB user memory and SIL 3 / PLe safety rating, it’s engineered for critical applications that require fault tolerance, high availability, and advanced motion, process, or discrete control.

Key Features

  • GuardLogix 5570 Series controller

  • 8MB standard memory + 4MB safety memory

  • Safety integrity level: SIL 3, PLe, Cat 4

  • Dual-processor architecture for safety and standard logic separation

  • Designed for ControlLogix redundancy chassis

  • Supports Studio 5000 Logix Designer software

  • Compatible with ControlNet, EtherNet/IP, DeviceNet via modules

  • USB programming port

  • Advanced diagnostics and fault protection

  • Hot-swappable in ControlLogix chassis

Technical Specifications

  • Catalog Number: 1756-L73SK

  • Standard Memory: 8MB

  • Safety Memory: 4MB

  • Non-Volatile Memory: 1784-SD1 (1GB SD card included)

  • Battery: 1756-BA2 for memory backup

  • Communication: USB (standard), backplane-based for network modules

  • Operating Temp: 0°C to 60°C

  • Power Consumption: 1.1 A @ 5.1V DC, 3 mA @ 24V DC

  • Certifications: UL, cUL, TUV, CE, ATEX, RoHS

Applications

  • Oil and gas platforms

  • High-availability process systems

  • Pharmaceutical manufacturing

  • Automotive assembly lines

  • Safety-critical material handling

Why Choose the 1756-L73SK?

  • Combines standard and safety control in a single module

  • Supports ControlLogix redundancy for fault-tolerant applications

  • SIL 3 / PLe certified for high-risk environments

  • Seamless integration with Rockwell Automation architecture

  • Expandable and scalable for complex automation systems

Order Now

Now available and ready to ship worldwide. 

Condition

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

Warranty

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.
Allen-Bradley 1756-L73SK

Allen-Bradley 1756-L73SK

$5,800.00
Add to wishlist
Allen-Bradley 1756-L73SK

Allen-Bradley 1756-L73SK

Your Price:
$5,800.00
Item Added to Your Cart
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