Allen Bradley 1756-OA8E ControlLogix AC Fused Output Module

Product Introduction

The Allen-Bradley 1756-OA8E is a ControlLogix AC fused output module designed for switching high-voltage AC loads in industrial automation systems. It provides eight individually fused relay outputs, allowing direct control of AC field devices such as contactors, solenoids, pilot lights, and motor starters.

Engineered for the ControlLogix platform by Rockwell Automation, this module combines electrical isolation, output protection, and diagnostic capabilities in a compact chassis-mounted format. Each output channel includes an integrated electronic fuse mechanism to enhance protection against short circuits and overload conditions.

The 1756-OA8E is typically installed in process control, manufacturing automation, and power distribution panels where reliable AC load switching and channel-level fault protection are required.

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Product Specifications

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Applications

• Switching AC-powered industrial loads such as solenoids, lamps, and motor starters

• Used in process automation systems requiring reliable high-voltage output control

• Integrated into manufacturing production lines for machine actuation

• Applied in power distribution and auxiliary control panels

• Suitable for environments demanding individual channel protection and diagnostics

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Advantages

• Eight independently fused outputs providing enhanced fault isolation

• Built-in electronic protection against overload and short circuit conditions

• Clear LED diagnostics per channel for fast troubleshooting

• Designed for seamless integration into ControlLogix chassis systems

• Reliable operation in electrically demanding industrial environments

• Simplifies maintenance by allowing quick identification of output faults

FAQ

1. What type of loads can the 1756-OA8E control?
   It is designed for AC loads such as contactors, solenoids, motor starters, and indicator lamps within the specified voltage range.

2. Are the outputs individually protected?
   Yes, each output channel includes electronic fuse protection.

3. Does the module provide electrical isolation?
   Yes, it offers isolation between the backplane and field-side circuits.

4. Can it switch both 120V and 240V AC loads?
   Yes, it supports standard industrial 120/240V AC output categories.

5. What type of terminal block is required?
   It uses a 20-pin removable terminal block (RTB).

6. How are output faults indicated?
   Individual LED indicators display channel status and fault conditions.

7. Is it compatible with redundant ControlLogix systems?
   Yes, it can be used within redundant ControlLogix architectures.

8. Does the module require external fusing?
   No, each channel includes integrated electronic fuse protection.

9. Can outputs be configured individually in Studio 5000?
   Yes, output parameters and diagnostics are configurable within the programming environment.

10. Is this module suitable for high inrush current loads?
    It supports typical industrial AC loads; inrush characteristics should be verified against application requirements.

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