1756-OA8 | ControlLogix Digital AC Output Module

Allen-Bradley 1756-OA8 ControlLogix Digital AC Output Module – 8 Points, 74-265V AC

Description

The Allen-Bradley 1756-OA8 is a ControlLogix digital AC output module designed for industrial automation. It features 8 output points (grouped as 2x4) with an operating range of 74-265V AC (47-63 Hz). Ideal for controlling solenoids, relays, motors, and more, this module supports local or remote installation in ControlLogix chassis. Includes removable terminal blocks (1756-TBNH/TBSH) for easy wiring.

Technical Data

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1756-OA8 
• Output Type: Digital AC
• Voltage Range: 74-265V AC
• Current per Point: 2A (max), 0.5A @ 60°C
• Backplane Power: 200mA @ 5V, 2mA @ 24V
• Response Time: 9.3ms (60Hz) / 11ms (50Hz)
• Isolation: 50V continuous
• Compatible Chassis: 1756-A4, A7, A10, A13, A17

Key Features

• Dual voltage groups (120V/240V AC compatible)
• Removable terminal blocks for easy maintenance
• Synchronized outputs (16.7ms scheduling)
• High surge tolerance (20A for 43ms)

Installation & Compatibility

Mounts in any ControlLogix chassis (local or remote). Works with all ControlLogix processors and GuardLogix safety systems. Requires 1756-TBNH/TBSH terminal blocks (sold separately).

Certifications

Complies with CE, UL, and IEC standards for industrial safety.

Package Includes

• 1x 1756-OA8 module
• Documentation (manual, datasheet)

Applications

• Motor control (contactors, starters)
• Industrial lighting (high-voltage lamps)
• Alarm systems (horns, sirens)
• Process automation (solenoid valves)

Note: External fusing recommended for protection.