Allen Bradley 1606-XLSRED/A Redundancy Module — Detailed Technical Overview

1. Product Overview

The Allen Bradley 1606-XLSRED/A is a redundancy module designed for 24V DC industrial power systems, enabling dual power supply operation to ensure continuous and reliable output. The “/A” suffix indicates a refined version within the same product platform, typically involving minor improvements or compliance updates while maintaining identical functional behavior.

This module is used to connect two independent DC power supplies in parallel, forming a redundant (N+1) power configuration. In the event that one power supply fails or experiences a voltage drop, the module automatically isolates the faulty source and allows the remaining power supply to continue delivering uninterrupted power to the load.

The unit is compact, DIN rail mounted, and designed for continuous operation in industrial environments where uptime and system stability are critical.

2. Brand Information

Brand: Allen Bradley

This brand is widely recognized in industrial automation for producing reliable electrical components that are commonly used in control systems, power distribution, and factory automation environments.

3. Series Information

Series: 1606 Switched Mode Power Supplies — XLS Series

The XLS series represents a performance-level product family that includes not only power supplies but also functional modules such as buffer units and redundancy modules.

Key characteristics of the XLS series include:

• High efficiency and stable electrical performance
• Modular system expansion (buffering, redundancy, UPS support)
• Compact DIN rail installation
• Compatibility with a wide range of industrial systems
• High overload and transient handling capability

The 1606-XLSRED/A specifically serves as a redundancy control module, ensuring uninterrupted power delivery when multiple power supplies are used.

4. Technical Parameters

Main Specifications Table

5. Product Features

The 1606-XLSRED/A is designed to ensure uninterrupted power delivery in critical industrial systems.

• Dual input channels for connecting two independent power supplies
• Automatic switchover without interruption
• Prevents reverse current between power supplies
• Diode-based isolation for reliable operation
• Compact DIN rail design with narrow width
• Passive cooling with no moving parts
• Simple wiring and quick installation
• Compatible with 24V DC industrial systems
• High reliability under continuous operation

These features make it suitable for systems where power failure cannot be tolerated.

6. Product Applications

This module is widely used in industrial systems requiring redundancy and high availability.

Typical applications include:

• PLC and distributed control systems
• Industrial automation production lines
• Robotics and motion control systems
• Process industries (chemical, energy, manufacturing)
• Industrial communication and network systems
• Conveyor and packaging machinery

It is particularly valuable in applications where continuous operation is essential and downtime must be avoided.

7. Product Advantages

Redundant Power Architecture

Allows two power supplies to operate in parallel, ensuring continuous output.

Automatic Fault Handling

Instantly isolates a failed power supply without manual intervention.

Equipment Protection

Prevents backfeeding and protects connected devices.

Compact and Space-Saving

Slim design allows installation in tight control panels.

High Reliability

Enhances overall system stability and reduces risk of shutdown.

8. Recommended Models — Same Series / Related Series

Table: XLS and Related Models

9. Recommended Models — Same Brand Popular Models

Table: Popular Industrial Power Modules