Allen Bradley 1606-XLSRED/A Power Supply

Product Introduction

The Allen Bradley 1606-XLSRED/A Power Supply is a Series A redundancy module designed for high-availability DC power architectures in industrial automation systems. As part of the 1606-XLS Performance Power portfolio from Allen-Bradley, it ensures uninterrupted power delivery by managing dual DC input sources and isolating them for reliable system operation.

This device is not a traditional power supply but a power redundancy module, engineered to combine two independent DC power inputs and maintain continuous output even if one source fails. It is widely used in automation environments where downtime is not acceptable.

With a wide input range of 10–60V DC and support for up to 20A output current, the module is suitable for standard 24V industrial systems as well as other DC architectures. Its compact DIN rail design and spring clamp terminals make installation fast and reliable in control cabinets.

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Product Specifications

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Applications

• High-availability industrial automation systems requiring continuous 24V DC power without interruption

• Redundant power architectures in PLC systems, control panels, and distributed I/O networks

• Process industries such as oil & gas, chemical, and power generation where downtime is not acceptable

• Machine control systems that rely on dual power supply redundancy for operational safety

• Critical infrastructure systems requiring fail-safe DC power distribution

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Advantages

• Dual input redundancy design ensures uninterrupted operation during power source failure

• Wide DC input range (10–60V) allows flexible integration into various industrial systems

• Low voltage drop (Vin – 0.9V) improves efficiency and reduces power loss

• Compact and slim DIN rail housing saves valuable panel space

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

• Series A improved stability design enhances reliability in modern automation environments

FAQ

1. What is the main function of this device?
   It is a redundancy module designed to combine two DC power sources and ensure uninterrupted output if one source fails.
2. Does this module generate or store power?
   No, it does not generate or store energy. It manages and distributes power from two external DC supplies.
3. What happens if one power input fails?
   The module automatically isolates the failed input and continues supplying power from the remaining healthy source without interruption.
4. What does “Vin – 0.9V” mean?
   It indicates a small voltage drop between input and output due to internal circuitry, typically around 0.9V under normal conditions.
5. Can both inputs use different power supplies?
   Yes, but it is recommended to use identical or closely matched power supplies to ensure balanced operation and system stability.
6. Is this suitable for 24V DC systems?
   Yes, it is widely used in 24V DC industrial automation systems for redundancy and reliability.
7. What protection features are included?
   The module provides input decoupling and protection against back-feeding between power sources.
8. Can it operate in continuous industrial use?
   Yes, it is designed for continuous operation in demanding industrial environments.
9. Does it improve system uptime?
   Yes, it significantly improves system availability by preventing downtime caused by single power supply failure.
10. What installation practices are recommended?
    Proper DIN rail mounting, correct dual input wiring, and ensuring adequate ventilation are required for reliable performance.

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