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ControlLogix Diagnostic AC Output Module | 1756-OA8D

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About the Product

Allen-Bradley 1756-OA8D ControlLogix Diagnostic AC Output Module – 8 Points, 74-132V AC

Product Overview

The Allen-Bradley 1756-OA8D is a diagnostic AC output module for ControlLogix systems. It provides 8 electronically fused outputs with advanced diagnostics for fault detection. Operating at 74-132V AC, this module ensures reliable control of industrial loads while monitoring output health.

Technical Specifications

  • Brand: Allen-Bradley (Rockwell Automation)
  • Model: 1756-OA8D
  • Type: Diagnostic Digital AC Output
  • Voltage Range: 74-132V AC (47-63Hz)
  • Current per Point: 1A @ 30°C, 0.5A @ 60°C
  • Module Current: 8A @ 30°C, 4A @ 60°C
  • Response Time: 9.3ms (60Hz), 11ms (50Hz)
  • Isolation: 50V continuous (1200V AC tested)
  • Power Consumption: 175mA @ 5V, 250mA @ 24V

Key Features

  • Electronic fusing on all outputs
  • Advanced diagnostics for fault detection
  • Removable terminal blocks (1756-TBNH/TBSH)
  • Surge protection (8A for 43ms)

Installation & Compatibility

Fits any ControlLogix chassis (1756-A4, A7, A10, etc.). Compatible with all ControlLogix processors and communication modules. Requires 1756-TBNH or TBSH terminal blocks (sold separately).

Certifications

Meets UL, CE, and IEC industrial standards for safety and EMC.

What's Included

  • 1x 1756-OA8D module
  • Installation documentation

Typical Applications

  • Critical process control systems
  • Safety shutdown circuits
  • High-availability machinery
  • Diagnostic-intensive applications

Note: Diagnostic features require compatible ControlLogix processor and software configuration.

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  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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