1756-OA8 ControlLogix Module – Allen-Bradley 265V AC Output

Description

Allen-Bradley 1756-OA8 ControlLogix AC Output Module

Master AC power control with the Allen-Bradley 1756-OA8, a versatile 8-point digital AC output module from Rockwell Automation. Designed for the ControlLogix platform, this module delivers reliable performance for industrial automation applications requiring AC output control. Download the complete technical manual here for detailed specifications and installation guidelines.

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)

• Model: 1756-OA8

• Type: Digital AC Output Module

• Output Points: 8 points (2 groups of 4 channels)

• Voltage Range: 74-265V AC

• Operating Frequency: 47-63Hz

• Current per Point: 0.5A @ 60°C (140°F)

• Current per Group: 2A @ 60°C maximum

• Current per Module: 5A @ 30°C, 4A @ 60°C (linear derating)

• Surge Current: 20A for 43ms (repeatable every 2 seconds)

• Output Delay: 9.3ms @ 60Hz, 11ms @ 50Hz

• Isolation Voltage: 50V continuous

• Backplane Current: 200mA @ 5.1V, 2mA @ 24V

• Power Dissipation: 5.1W maximum @ 60°C

• Thermal Dissipation: 17.39 BTU/hour

• Operating Temperature: 0 to 60°C (32 to 140°F)

• Leakage Current: <3mA per point (off-state)

• Minimum Load Current: 10mA per point

• Terminal Blocks: 1756-TBNH, 1756-TBSH (20-pin)

• Synchronization: Within 16.7 seconds for scheduled outputs

• UNSPSC: 32151705

Package Contents

• 1756-OA8 ControlLogix AC Output Module

• Installation and Configuration Guide

• Compatibility with standard 1756 terminal blocks

Frequently Asked Questions

• Can I use different AC voltages on the two output groups?
  Yes, the two groups are isolated, allowing different voltage levels for each group.

• What type of circuit protection do you recommend?
  We recommend installing external fuses sized according to your specific load requirements.

• How does the output delay programming work?
  The delay is automatically set based on line frequency (9.3ms at 60Hz, 11ms at 50Hz).

• Can this module drive three-phase AC loads?
  You can control three-phase loads using multiple outputs with proper interlocking.

• What is the minimum load current requirement?
  The module requires at least 10mA per point to ensure proper operation.