Allen Bradley 1606-XLSRED Power Supply

Product Introduction

The Allen Bradley 1606-XLSRED Power Supply is a high-reliability redundancy module designed to ensure uninterrupted DC power delivery in critical industrial applications. As part of the 1606-XLS Performance Power series from Allen-Bradley, this unit is specifically engineered to manage dual power inputs and provide seamless redundancy for 24V DC systems.

Unlike conventional power supplies, the 1606-XLSRED functions as a redundancy module that decouples and isolates two independent DC power sources. In the event of a failure in one power supply, the module automatically switches to the backup source without interruption, ensuring continuous operation of connected loads.

With a wide input voltage range of 10–60V DC and support for up to 20A output current, this module is suitable for a variety of industrial applications. Its compact DIN rail mount design, combined with spring clamp connections, allows for fast installation and reliable wiring in control cabinets.

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Product Specifications

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Applications

• Redundant power supply systems ensuring continuous operation in critical automation environments

• Industrial control panels where dual power sources are required for increased reliability

• Process industries such as oil & gas, chemical plants, and power generation with high availability requirements

• PLC and control systems that must remain operational during power supply failure events

• Automation systems with backup power architecture requiring seamless switching between power sources

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Advantages

• Dual input redundancy design ensures uninterrupted power supply during primary source failure

• Wide input voltage range (10–60V DC) provides flexibility across different DC systems

• Automatic switchover capability eliminates downtime and protects critical operations

• Low voltage drop (Vin – 0.9V) ensures efficient power delivery to connected loads

• Compact DIN rail mounting optimizes cabinet space and simplifies installation

• Spring clamp connections provide secure, vibration-resistant, and fast wiring

FAQ

1. What is the main purpose of this redundancy module?
   This module is designed to combine two DC power supplies and provide automatic switchover in case one fails, ensuring continuous power to connected equipment.
2. Does the module generate power like a standard power supply?
   No, it does not generate power. It manages and distributes power from two external DC sources, providing redundancy and isolation.
3. How does the switchover process work during a failure?
   The module automatically switches to the backup input without interruption, ensuring that the output remains stable and continuous.
4. What is meant by Vin – 0.9V output?
   The output voltage is slightly lower than the input voltage due to internal circuitry, typically reduced by approximately 0.9V under normal operating conditions.
5. Can the module be used with different voltage levels on each input?
   It is recommended that both inputs operate within the same voltage range to ensure proper redundancy and balanced load sharing.
6. What types of power supplies are compatible with this module?
   It can be used with most DC power supplies within the 10–60V range, particularly 24V DC industrial power supplies.
7. What happens if both input power sources fail?
   If both inputs are lost, the module cannot supply power, as it does not include internal energy storage.
8. Does the module provide electrical isolation between inputs?
   Yes, it isolates the two input sources to prevent back-feeding and ensure safe parallel operation.
9. Is it suitable for critical systems requiring high uptime?
   Yes, it is specifically designed for applications where system availability is critical and downtime must be minimized.
10. What installation considerations should be followed?
    Ensure proper DIN rail mounting, correct wiring of both inputs, and sufficient spacing for heat dissipation to achieve optimal performance.

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