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1756-EN3TR
1756-EN3TR
Allen Bradley 1756-EN3TR ControlLogix Ethernet Module
  1. 1756-EN3TR
  2. 1756-EN3TR
  3. Allen Bradley 1756-EN3TR ControlLogix Ethernet Module

Allen Bradley 1756-EN3TR ControlLogix Ethernet Module

£2,157.35 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 1756EN3TR
Series ControlLogix
Type High-Capacity Ethernet/IP Communication Module
Communication Ports 2 x 10/100 Mbps Copper (RJ45)
Power Supply Voltage Supplied via 1756 backplane
Enclosure Type Open-style for 1756 chassis
Connector Types 2 x RJ45 for Ethernet 1 x USB (for configuration only)
Enclosure Rating IP20 (when installed in chassis)
Max CIP Connections 256
Max TCP/IP Connections 128
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Allen Bradley 1756-EN3TR ControlLogix Ethernet Module

The AB 1756-EN3TR is a high-performance dual-port Ethernet/IP communication module for the ControlLogix platform. With embedded switch technology and support for Device Level Ring (DLR) redundancy, this module enables robust network topologies and high-capacity communication between controllers, I/O modules, and CIP motion devices.

Technical Specifications

Model 1756EN3TR
Series ControlLogix
Type High-Capacity Ethernet/IP Communication Module
Communication Ports 2 x 10/100 Mbps Copper (RJ45)
Integrated Switch Yes – Embedded switch for DLR support
Redundancy Yes – DLR and controller redundancy supported
Max CIP Connections 256
Max TCP/IP Connections 128
Backplane Interface ControlLogix standard
CIP Motion Support Yes
Compatible Software Studio 5000 Logix Designer

Electrical Specifications

Power Supply Voltage Supplied via 1756 backplane
Current Draw (5.1V) ~1.2 A
Current Draw (24V) 3 mA
Power Dissipation 6.1 W
Thermal Dissipation 20.8 BTU/hr
Isolation Voltage 50V continuous (Ethernet ports to backplane)
Surge Protection Yes (internal ESD and transient protection)

Network & Interface Specifications

Ethernet Speed 10/100 Mbps, auto-sensing
Protocols Supported ✅ EtherNet/IP ✅ CIP Motion ✅ CIP Safety ✅ IGMP Snooping for multicast optimization ❌ Modbus ❌ PROFIBUS ❌ TCP/IP (raw sockets) ❌ DeviceNet
Configuration Tools Studio 5000 Logix Designer
Diagnostic Tools Web-based diagnostics, Studio 5000 diagnostics
Topology Support Star Linear Device Level Ring (DLR)

Mechanical Specifications

Enclosure Type Open-style for 1756 chassis
Width 35 mm
Height 145 mm
Depth 140 mm
Mounting Orientation Chassis slot installation (ControlLogix)
Weight Approx. 250 g
Connector Types 2 x RJ45 for Ethernet 1 x USB (for configuration only)

Environmental Specifications

Operating Temperature 0…60 °C
Storage Temperature –40…85 °C
Relative Humidity 5% to 95% non-condensing
Shock Rating 30 g
Vibration Resistance 2 g @ 10–500 Hz
Pollution Degree 2
Enclosure Rating IP20 (when installed in chassis)
Application Suitability Industrial environments, enclosed systems

Compliance & Certifications

Certifications UL, c-UL, CE, RoHS
Standards Met EN 61131-2, EN 61000-6-2 / 6-4
EMC Compliance Yes
Functional Safety Not a safety-rated device
Use with ControlLogix controllers and compatible chassis

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Frequently Asked Questions

How can I check whether 1756-EN3TR 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-EN3TR 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 0.25 kg

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1756-L8SP_Selection-Guide.pdf1756-EN3TR_Installation-Instructions.pdf1756-EN3TR_User-Manual.pdf1756-EN3TR_Technical-Data.pdf

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