ControlLogix Diagnostic AC Output Module | 1756-OA8D

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.