Allen-Bradley 1606-XLSRED80 Redundancy Module

The Allen-Bradley 1606-XLSRED80 serves as the primary 1606-XLSRED80 Redundancy Module utilized to execute redundant 24 VDC to 56 VDC power path decoupling across Bulletin 1606 XLS power distribution platforms. The module provides dual-input, single-output power redundancy using MOSFET-based isolation technology, enabling uninterrupted load supply during individual power source failure conditions.

Suffix Breakdown & Model Matrix

The supplied documentation identifies 1606-XLSRED80 as a fixed catalog number within the Bulletin 1606 XLS family. No official suffix breakdown or ordering matrix is specified in the provided data.

Hardware Specifications

Firmware Flash Compatibility and Power Architecture

The 1606-XLSRED80 is designed as a hardware-level redundancy component and does not require firmware flashing or field software configuration. Power path management is performed through MOSFET-based electronic decoupling circuits.

When paired with Bulletin 1606 XLS power supplies, the module supports 1+1 and N+1 redundant architectures. Dual power sources remain electrically isolated while supplying a common output bus. If one source experiences undervoltage or complete loss of output, the remaining source continues supplying load current without mechanical switching operations.

The low voltage drop across the MOSFET stage reduces cabinet heat generation compared with conventional diode-based redundancy modules and allows higher usable output voltage at the load terminals.

Frequently Asked Questions

Q: Does the 1606-XLSRED80 support hot replacement of a failed power supply?
A: Yes. The module is designed for redundant power architectures that allow replacement of a failed supply while the remaining supply continues supporting the connected load, provided the active source can carry the required load current.

Q: Does the redundancy module generate a significant voltage drop across the power path?
A: No. The specified input-to-output voltage drop is approximately 50 mV at 40 A output current due to MOSFET-based decoupling technology.

Q: Is the module intended to increase output power capacity by combining two power supplies?
A: The primary function is redundancy and source decoupling. System design should follow Bulletin 1606 redundancy guidelines when implementing load sharing or N+1 configurations.

Field Installation Guidelines

• Mount the module vertically on a standard 35 mm DIN rail to maintain specified thermal performance.

• Use conductor sizes appropriate for the expected load current and applicable electrical codes.

• Keep DC power wiring as short as practical to minimize voltage drop between power supplies, redundancy module, and load.

• Verify polarity before energizing the system; incorrect DC polarity may damage connected equipment.

• Maintain adequate clearance around the module to support natural convection cooling.

• Route power conductors separately from high-noise AC motor cables and variable-frequency drive output wiring.

• Inspect terminal tightness during commissioning and scheduled maintenance intervals.

• Confirm redundancy operation by testing individual input source removal under controlled load conditions.