Product details
Allen-Bradley 1756-OA8D Diagnostic Output Module – Precision AC Power Control
Download installation guide: Get Full Specifications PDF
Power Specifications
- Output Points: 8 isolated channels
- Voltage Range: 74-132V AC
- Current Capacity: 1A per point (8A total)
- Response Time: <11ms ON/OFF switching
- Surge Handling: 8A for 43ms (recurring)
Technical Details
- Brand: Allen-Bradley/Rockwell
- Model: 1756-OA8D (ControlLogix series)
- Backplane Power: 175mA @5V DC, 250mA @24V DC
- Heat Output: 18 BTU/hour max
- Isolation: 1200V AC tested protection
- Operating Temp: 0°C to 60°C (32°F to 140°F)
- Weight: 1 kg (2.25 lbs)
- Terminal Blocks: 1756-TBNH or 1756-TBSH
Industrial Toughness
- 50V continuous isolation protection
- Works in high-vibration environments
- Handles 95% humidity non-condensing
Easy Integration
- Fits any 1756 ControlLogix chassis slot
- Tool-free terminal block replacement
- Auto-detection in Studio 5000® software
Warranty & Global Delivery
- 12-month product warranty
- Shipped worldwide via FedEx/UPS/DHL
- Includes module, documentation
Expert FAQs
- Q: What diagnostics does it provide?
A: Open circuit, short circuit, and load failure detection - Q: Can I replace terminals without tools?
A: Yes, uses removable screwless terminal blocks - Q: What’s the minimum load requirement?
A: 10mA per output channel - Q: Is derating required at high temps?
A: Yes: 0.5A/point at 60°C vs 1A at 30°C - Q: Compatible with standard ControlLogix?
A: Yes, works with all 1756 chassis systems
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