1756-OA8D ControlLogix AC Output Module | Allen-Bradley

Allen-Bradley 1756-OA8D – 8-Channel Diagnostic AC Output Module for ControlLogix Systems

Core Features

• 8 diagnostic outputs with electronic fusing
• Works with 74-132V AC power systems
• Built-in fault detection for each output
• Fits standard 1756 ControlLogix chassis
• Compact single-slot design

Technical Specifications

• Output Type: AC, diagnostic
• Voltage Range: 74-132V AC (47-63Hz)
• Current per Point: 1A @30°C (0.5A @60°C)
• Total Current: 8A @30°C (4A @60°C)
• Response Time: ≤11ms (50Hz)
• Power Use: 5.3W max
• Terminal Blocks: 1756-TBNH or 1756-TBSH
• Weight: 1kg (2.25lb)
• Humidity Range: 5-95% non-condensing

Installation Notes

• Fits any 1756 chassis slot
• Use proper terminal block (TBNH or TBSH)
• Keep operating temperature below 60°C

Download Complete Specifications

For full details about the 1756-OA8D module: Download Technical Manual

Frequently Asked Questions

1. What does “diagnostic” mean for this module?
   It can detect and report output circuit faults.
2. Can I use this with 110V systems?
   Yes, it works from 74V to 132V AC.
3. How many modules can I put in one chassis?
   Depends on chassis size – up to 17 in large chassis.
4. What happens if an output fails?
   The module reports the fault to the controller.
5. Is this module good for motor control?
   Best for small loads under 1A – use contactors for motors.

What’s Included

• 1x 1756-OA8D module
• Installation instructions

Support & Delivery

• 12-month quality guarantee
• Fast shipping with FedEx, UPS, or DHL