🔍
1756-L71
1756-L71
Allen Bradley 1756-L71 ControlLogix Processor
  1. 1756-L71
  2. 1756-L71
  3. Allen Bradley 1756-L71 ControlLogix Processor

Allen Bradley 1756-L71 ControlLogix Processor

£3,385.55 inc VAT

In Stock · Delivered in 3–5 Working Days
Estimated UK delivery time, subject to order confirmation, courier services and destination. International delivery times vary.
Technical SpecificationsAllen Bradley
Model 1756L71
Series ControlLogix 5570
Type Programmable Automation Controller (PAC)
Input Voltage Supplied via ControlLogix chassis backplane
Protection Type Short-circuit and overcurrent protection via chassis power supply
Enclosure Type Modular slot-type (fits into ControlLogix chassis)
Mounting Chassis-based rack assembly
Rack-Mountable Yes
Rail Mounting Not supported
Power Dissipation ~5.1 W
✓ Genuine OEM Parts✓ 2-Year Store-Backed Warranty✓ Technical Support

Found a Better Price? We’ll Match or Beat It!Send us the competing price or quote for a personalised offer.

🛡️ 24-Month Drive Outlet Warranty

Every product is 100% new, genuine, and backed by our exclusive 2-year warranty. We are an independent supplier and not an authorised distributor. Manufacturer warranties may not apply. See our Terms and Conditions.

SKU: 1756-L71 Category: Tags: , , Brand:
Guaranteed Safe Checkout
Extra Features
  • 100% Brand New & Genuine OEM Product
  • Includes Full 2-Year Warranty for Peace of Mind
  • Fast UK & Worldwide Shipping – Fully Tracked
  • Expert Technical Support from Our In-House Engineers
  • Found a Better Price? We’ll Match or Beat It Instantly

Allen Bradley 1756-L71 ControlLogix Processor

The AB 1756-L71 is a high-performance ControlLogix programmable automation controller (PAC) featuring 2 MB of user memory and a modular form factor. Designed for advanced control applications, it integrates seamlessly into Logix 5000 systems and supports scalable architectures across a wide range of industries.

Technical Specifications

Model 1756L71
Series ControlLogix 5570
Type Programmable Automation Controller (PAC)
Memory Size 2 MB user memory
Form Factor Modular
Mounting Chassis-based rack assembly
Integrated Display Yes
Front Installation Supported
Rack-Mountable Yes
Rail Mounting Not supported
Battery/Capacitor Backup Optional Energy Storage Module (1756-ESMC or ESMNR)

Electrical Specifications

Input Voltage Supplied via ControlLogix chassis backplane
Power Dissipation ~5.1 W
Backplane Current (5.1V) 1.2 A
Backplane Current (24V) 14 mA
Heat Dissipation ~17.4 BTU/hr
Isolation Voltage 30V (continuous), basic insulation
Protection Type Short-circuit and overcurrent protection via chassis power supply

Network & Interface Specifications

USB Port 1 (Type B) – for programming and configuration
Supported Protocols ✅ EtherNet/IP (via communication module) ✅ Modbus (via communication module) ❌ Data Highway ❌ SERCOS ❌ TCP/IP (not directly supported)
Network Redundancy Supported via external modules
Compatible Communication Modules 1756-EN2T, 1756-CN2R, etc.
Integrated Interfaces USB Port: 1 (Type B) – for programming and configuration

Mechanical Specifications

Enclosure Type Modular slot-type (fits into ControlLogix chassis)
Width 292 mm
Height 240 mm
Depth 164.52 mm
Mounting Orientation Vertical rack mounting
Weight Approx. 0.6 kg
Installation Environment Within protective control cabinet

Environmental Specifications

Operating Temperature 0…60 °C
Storage Temperature –40…85 °C
Relative Humidity 5% to 95% non-condensing
Vibration Resistance 2 g @ 10–500 Hz
Shock Rating 30 g operating, 50 g non-operating
Pollution Degree 2
Certifications For use in Class I Div 2 Groups A, B, C, D

Compliance & Certifications

Certifications UL, c-UL, CE, ATEX, RoHS
SIL Rating SIL 3 (IEC 61508)
Performance Level PL e (EN ISO 13849-1)
EMC Compliance EN 61000-6-2 / 6-4
Standards Met EN 61131-2, IEC 61508
Safety Applications Suitable for safety-related automation with proper configuration

Related Products & Helpful Links

Frequently Asked Questions

How can I check whether 1756-L71 is the correct replacement?

Check the exact manufacturer part number, electrical ratings, interface type, mounting and equipment compatibility against your existing equipment and the manufacturer’s datasheet.

How quickly can 1756-L71 be delivered?

This product is listed as in stock, with estimated UK delivery in 3–5 working days. Delivery depends on order confirmation, courier services and destination.

Where can I check specifications and compatibility?

Review the specification information above and the product’s Downloads or Data Sheets tab, where documents are supplied. Our team can help check part numbers and installation compatibility.

What warranty does Drive Outlet Megastore offer?

Drive Outlet offers its own 2-year return-to-base warranty unless otherwise stated. Manufacturer warranties may not apply; please review the Terms and Conditions before ordering.

Weight 0.6 kg

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Allen Bradley Supplier UK – Automation Parts & Industrial Controls

Browse Allen Bradley products for industrial automation, PLC systems, PowerFlex drives, SMC soft starters, PanelView HMIs, I/O modules, relays and machine control spares.

⚙️ Genuine OEM Automation Parts
🔎 Search by Part Number
🚚 Fast UK & International Delivery
🛠️ Technical Sourcing Support

Popular Allen Bradley Products

Use the product links below as quick routes into this brand. If you already know your part number, use the search bar for the fastest result.

View Allen Bradley 22-COMM-E PowerFlex 40 Communication Module
View Allen Bradley 1786-RG6 Controlnet RG6 Shield 1000FT Cable
View Allen Bradley 150-F251NBD 251A 400V Soft Start – 132kW
View Allen Bradley 440R-N23117 Single Function Safety Relay
View Allen Bradley 2711P-T7C22D9P Graphic Terminal
View Allen Bradley 20F11NC043JA0NNNNN Inverter Drive – 22kW, IP20

Shop Allen Bradley by Product Category, Series & Specification

Compare Allen Bradley parts by PowerFlex series, ControlLogix or CompactLogix platform, POINT I/O type, voltage, current rating, communication protocol and exact catalogue number.

View Allen Bradley Modules
View Allen Bradley Cables
View Allen Bradley Soft Starts
View Allen Bradley Relays
View Allen Bradley Graphic Terminals
View Allen Bradley PowerFlex 753 Inverters
View All Allen Bradley Products

Need Help Finding the Right Allen Bradley Product?

If you cannot find the exact part number, send us the model code, a photo of the rating plate or the details of the machine it is fitted to. We can help check availability, replacements and suitable alternatives.

Request a Quote / Contact Us

Allen Bradley FAQs

How do I find the correct Allen Bradley product?

The fastest way is to search using the exact manufacturer part number or model code. You can also browse this brand page by product category, series and specification to compare close alternatives.

What should I check before buying Allen Bradley products?

Check the full Allen Bradley catalogue number, series letter, voltage, power rating, firmware or revision requirements, communication option and compatibility with the existing Rockwell Automation system.

Can you help if my exact Allen Bradley part number is not listed?

Yes. Send us the part number, a photo of the label or the machine details and we can check availability, replacement options and suitable alternatives.

Are these products suitable for industrial replacement jobs?

These pages are designed for maintenance teams, panel builders, OEM buyers and engineers who need part-number-led industrial automation spares for repairs, upgrades and breakdown support.

How quickly can you supply Allen Bradley products?

Availability depends on the exact product and quantity required. Check the product page or contact us and we can confirm stock position, lead time and shipping options.

View all Allen Bradley products

1756-L71_Selection-Guide.pdf1756-L71_Product-Profile.pdf1756-L71_Technical-Data-1.pdf

Related products

Need help with PLC/HMI compatibility and correct accessories?

Send your controller/network details — we’ll confirm comms, expansion, and the right cables/modules.

  • Ethernet/serial/fieldbus compatibility checks
  • Correct cables, memory and add-on modules
  • Fast quote with suitable alternatives
Request a Quote Browse Our Brands
Or call: 0161 470 2725