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OVERVIEW
Official designation: Allen-Bradley 1746-OX8 (SLC 500, Digital Contact Output Module)
The 1746-OX8 is an SLC 500 module providing 8 individually isolated Normally Open (N.O.) relay contact outputs for switching high-current, mixed AC/DC loads.
KEY SPECS SUMMARY
Power: 5V DC, 150 mA (backplane)
Interfaces / Ports: 20-pin terminal block
Indicators: Eight output status LEDs
Operating Temp: 0 to 60 degrees C
Platform / Compatibility: SLC 500 chassis
Limit: 2.5 A max per channel
Lifecycle: Discontinued
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What are the maximum voltage ratings for AC and DC operation of the outputs?
A: Outputs support 5 to 265V AC or 5 to 125V DC maximum operating voltages.
Wiring & Installation:
Q: Does the 1746-OX8 require external power for its output circuits?
A: Yes, output circuits require an external load voltage supply, separate from backplane power.
Troubleshooting & Compatibility:
Q: What does it mean if the output status LED for channel 5 is continuously illuminated?
A: The illuminated LED indicates that the relay contact for output channel 5 is closed (On).
Replacement & Upgrades:
Q: Is the Allen-Bradley 1746-OX8 output module currently supported or discontinued?
A: The 1746-OX8 is officially classified as a discontinued part number by the manufacturer.
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