Overview
The Allen-Bradley 1746-OX8 is an SLC 500 channel to channel isolated relay output module. The 1746-OX8 module has 8 individually isolated outputs, making it ideal for distributed control in industrial applications. It has an operating voltage ranging between 5-125V DC and 5-265V AC, providing flexibility for AC or DC load control in machinery, assembly lines, and process automation systems.
Key Features
- 8 individually isolated outputs for independent load control
- Operating voltage 5-125V DC and 5-265V AC for diverse load types
- Relay contact rating of 30A at 120V AC maximum with 3.0A break at 240V AC
- Class 1, Division 2 endorsement for use in hazardous environments
- Certified by UL, CSA, and CE standards
- Operating temperature range of 32 to 140 degrees Fahrenheit
Technical Specifications
- Output Type: Isolated Relay Contacts
- Number of Outputs: 8 individually isolated
- Output Voltage: 5-125V DC and 5-265V AC
- Maximum Output Current: 30A at 120V AC; 15A at 240V AC
- DC Output Current: 0.22A at 125V DC and 1.2A at 24V DC
- Backplane Current: 0.085A at 5V DC and 0.090A at 24V DC
- Signal Delay: 10.0ms ON and 10.0ms OFF at maximum resistive load
- Heat Dissipation: 0.825 Watts per energized point
- Operating Temperature: 32 to 140 degrees Fahrenheit
- Isolation Voltage: 1500V isolation
- Operating Shock Rating: 10g
- Certifications: UL, CSA, and CE standards
Typical Applications
The 1746-OX8 is commonly used in material handling systems, HVAC control, high-speed assembly operations, process control, and simple motion control applications. Its relay contact outputs are suitable for driving solenoids, motor starters, indicator lights, and other high-current AC/DC loads in industrial environments. The isolated outputs allow independent switching of multiple field devices without cross-talk or common return issues.
Compatibility & Replacements
Compatible With
- Allen-Bradley SLC 500 fixed and modular processors
- SLC 500 chassis (1746-A2, -A4, -A10, etc.)
- 1492 prewired cables and interface modules for external I/O wiring
- Standard industrial relay load devices (solenoids, contactors, motor starters)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1746-OX8 Series A is the standard configuration; earlier Series versions may have minor differences in electrical characteristics.
Works With
- RSLogix 500 programming software for SLC 500 configuration
- SLC 500 ladder logic and control programs
- Industrial I/O wiring standards and terminal blocks
- 5069-OX4I as a modern CompactLogix equivalent for system upgrades
