Allen-Bradley 1756-OX8I ControlLogix AC/DC Isolated Relay Output Module

Allen-Bradley

Allen-Bradley 1756-OX8I  ControlLogix AC/DC Isolated Relay Output Module

Overview
The Allen‑Bradley 1756-OX8I is an isolated relay output module designed for integration into the ControlLogix 

programmable automation system family. It provides multiple individually isolated electromechanical relay outputs 

that enable control of external devices using either AC or DC power sources. The module’s isolated outputs help 

maintain electrical separation between field circuits and control system logic, reducing interference and enhancing 

system reliability in industrial automation environments. 

Product Specifications

Model NO.:1756-OX8I

Manufacturer:Allen-Bradley 

Type:ControlLogix AC/DC Isolated Relay Output Module

Operating voltage range：5…125V DC10…240V AC

Current draw @ 5.1V：100 mA

Current draw @ 24V：100 mA

Total backplane power：2.9 W

Power dissipation, max：3.1 W @ 60 °C (140 °F)

Thermal dissipation：10.57 BTU/hr

Minimum load current：10 mA per point

Initial contact resistance, max：100 mΩ @ 6V 1 A

Bounce time, mean：1.2 ms

Contact Information

Company Services

1. Global Stock Coverage: New, discontinued, and replacement parts for fast response

2. Fast Shipping: 1–3 business days for standard orders, expedited options available

3. Flexible Shipping Options: Air, sea, courier; custom logistics solutions available

4. After-Sales Guarantee: 1-year warranty, free repair or replacement for non-human damage

5. Customized Solutions: Tailored part combinations and procurement advice to ensure long-term system reliability

6. Rapid Response to Inquiries: 24/7 support for stock checks, model matching, and system selection

Customer Reviews

“IndustryParts’s GuardLogix module is very stable and delivered quickly, helping us complete our system upgrade 

with minimal downtime.”

“Their stock coverage is impressive; even discontinued parts were readily available, saving us a lot of time.”

“After-sales service is highly professional. Issues are resolved promptly, making the process smooth.”

“IndustryParts’s shipping options are flexible and reliable. Air and courier deliveries arrived on time, securely packaged.”

“From inquiry to delivery, IndustryParts’s team provided full support, including model matching, stock verification, 

and custom solutions, greatly improving procurement efficiency.”

“The technical team was patient, explaining module functions and configuration details, helping us complete the 

system upgrade quickly.”

Application Areas

Manufacturing: Assembly lines, robotics, smart factories

Petrochemical & Energy: Refineries, gas compressors, power plants

Water Treatment & Infrastructure: Pump stations, pipeline automation, wastewater treatment

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