Allen-Bradley 1606-XL120DR Power Supply 120W

Allen-Bradley 1606-XL120DR Redundant Power Supply

The 1606-XL120DR belongs to the Allen-Bradley Bulletin 1606-XL legacy series. This unit provides reliable 24 V DC power for industrial control cabinets. Its integrated decoupling diode supports true redundant operation. Engineers often specify this model for critical loads that cannot tolerate a single power failure. The 1606-XL120DR accepts a wide AC input range and delivers a stable 5 A output. This makes it suitable for PLC racks, sensor networks, and relay logic. The series is now discontinued, so buyers typically source it for maintenance and spare parts.

Technical Specifications

The electrical performance of the 1606-XL120DR meets common industrial demands. Input voltage ranges from AC 85 to 264 V single-phase. Output voltage is DC 24 V nominal. Output current reaches 5 A with a rated power of 120 W. The integrated decoupling diode allows parallel connection for redundancy. A DC OK relay output provides status signaling to control systems. The soft output characteristic supports parallel-capable operation. Furthermore, no communication interface exists on this model, which simplifies wiring. Approvals include UL 60950-1, cUL, and CE marking per the Bulletin 1606 standard.

Mechanical and Environmental Parameters

The unit uses DIN rail mounting for quick installation. Dimensions measure 124 × 64 × 102 mm in H×W×D format. Weight is approximately 0.62 kg per official documentation. Operating temperature ranges from -10 to +70 °C. The protection rating is IP20, reflecting its open-frame DIN-rail construction. Storage temperature and relative humidity are not published for this legacy series. Therefore, users should follow general cabinet guidelines for storage. The compact footprint saves valuable panel space in dense control systems.

Installation Guide

First, mount the 1606-XL120DR on a standard 35 mm DIN rail. Next, connect the AC input wiring to the designated terminals. Ensure the input voltage stays within the 85–264 V AC range. Then, wire the 24 V DC output to the load circuit. For redundant setups, parallel two units and verify the decoupling diode operation. Additionally, connect the DC OK relay to a monitoring input if needed. Finally, check all connections before applying power. The IP20 rating requires installation inside a protective enclosure. Proper airflow around the unit supports reliable cooling during continuous operation.

Packaging List

• 1 × Allen-Bradley 1606-XL120DR Power Supply Unit

• 1 × Installation Instruction Sheet

• Protective cardboard packaging

FAQ

Q1: Can the 1606-XL120DR operate in parallel for redundancy?
A1: Yes, the integrated decoupling diode enables parallel redundant operation. Two units can share the load safely.

Q2: What is the output current rating of this power supply?
A2: The unit delivers 5 A at 24 V DC nominal, providing 120 W of total output power.

Q3: Is this model still available from the manufacturer?
A3: No, Rockwell discontinued this model on December 31, 2020. No planned replacement exists, so sourcing focuses on surplus and spare stock.

Q4: What shipping methods do you offer?
A4: We ship worldwide via Fedex, UPS, and DHL. Tracking information is provided after dispatch.

Q5: Does the 1606-XL120DR include a communication port?
A5: No communication interface is built in. The unit provides only a DC OK relay output for status monitoring.