Allen Bradley 1606-XLERED Bulletin 1606 XL Redundancy Module

Product Overview

The Allen Bradley 1606-XLERED functions as a high-performance redundancy module designed to decouple two DC power supplies. By utilizing internal diode circuitry, this module prevents a single power supply failure from shorting the entire DC bus, ensuring continuous uptime for critical PLC and HMI loads. It supports a wide voltage range of 12-48V DC and handles current loads up to 20 Amps. We supply this unit in 100% Brand New, factory-original condition, providing a high-integrity solution for fault-tolerant automation systems.

Technical Specifications

Engineering Advantages

• Active Fault Isolation: The 1606-XLERED effectively isolates two parallel power supplies. If one supply develops an internal short circuit, the module’s decoupling diodes block the reverse current, allowing the remaining healthy supply to carry the load without interruption.

• Dynamic Voltage Versatility: This module accepts any DC input between 12V and 48V. This broad operating window allows engineers to standardize on a single redundancy module across various system architectures, including 12V, 24V, and 48V DC control loops.

• Dual Input/Single Output Architecture: The module features twin input terminals to simplify the creation of N+1 redundant configurations. This design eliminates the need for external terminal blocks or complex custom wiring harnesses, saving significant space in crowded control cabinets.

• Heat Management Optimization: The metal enclosure and internal component layout facilitate efficient heat dissipation. This allows the module to maintain a 20A throughput in standard operating temperatures without the need for forced-air cooling, ensuring long-term reliability in sealed NEMA enclosures.

FAQs

• Does the 1606-XLERED require a specific brand of power supply?

  While designed for the Allen Bradley Bulletin 1606 XL series, this redundancy module functions with any regulated DC power supply within the 12-48V range. It decouples any two sources to create a unified, redundant output.

• Can I use this module to increase total output current?

  The primary purpose of the 1606-XLERED is redundancy, not current boosting. To ensure true redundancy, each individual power supply must be capable of carrying the total system load. If the load exceeds the capacity of a single supply, you lose the "fault-tolerant" benefit.

• What is the voltage drop across the module?

  Because the module uses decoupling diodes, a small voltage drop (typically 0.7V to 0.9V) occurs between the input and output. We recommend adjusting the output voltage of your primary power supplies slightly higher (e.g., to 24.8V for a 24V load) to compensate for this drop.

• Is this a new or used item?

  We guarantee this 1606-XLERED is 100% Brand New and ships in its original factory packaging. We do not sell refurbished or "pulled" hardware; you receive a factory-fresh unit with full technical integrity.