Allen-Bradley 1606-XL480E-3W 490W PSU

Allen-Bradley 1606-XL480E-3W Three-Phase Power Supply

Product Introduction

The 1606-XL480E-3W belongs to the Allen-Bradley Bulletin 1606-XL legacy series of switched-mode power supplies. This three-phase model delivers 490W at 24.5V DC and 20A for mid-size industrial panels. The W suffix marks a wide-input design that accepts 340 to 576V AC continuously, plus 450 to 820V DC. Consequently, it tolerates severe voltage swings on plant distribution networks. Machine builders often selected it for equipment exported to regions with unstable three-phase supplies. However, Rockwell announced end of sale for the Bulletin 1606-XL series on 30 October 2017. Today the 1606-XL480E-3W serves mainly spare-part and legacy-maintenance roles, while new designs migrate to the 1606-XLE or 1606-XLS families.

Technical Specifications

The output spans 24 to 28V DC with a factory preset of 24.5V ±0.5 percent. At 20A, the unit delivers 490W continuously across 0 to 60 °C ambient. Additionally, a boost mode provides 25A at 24.5V, or 612W, within 0 to 45 °C. Efficiency reaches 92.2 percent, which keeps cabinet heat manageable. The three-phase input accepts 400 to 500V AC nominal at ±15 percent, and the wide window extends to 340 to 576V AC continuous.

The unit has no communication ports or protocols, so status monitoring depends on external devices. Furthermore, the preset output reduces commissioning time because technicians rarely need to adjust the trim. The wide input range covers both 400V and 480V plant standards without rewiring.

Mechanical and Environmental Parameters

The housing measures 124 mm high, 150 mm wide, and 121 mm deep. Weight is 1.8 kg. Mounting uses DIN rail only, consistent with other Bulletin 1606 units. Operating temperature spans 0 to +70 °C with derating above 60 °C. Storage temperature spans -25 to +85 °C. The manufacturer does not publish a relative humidity value for this model. Protection rating is IP20 for open-frame DIN rail construction. Approvals include UL 60950-1, cUL, and CE marking.

Installation Guide

First, confirm the three-phase supply falls within the 340 to 576V AC window. Next, mount the unit on a suitable DIN rail and fit end stops on both sides. Then, connect the three input phases and the output wires with correct torque. After that, verify output polarity and check the preset 24.5V before loading. Finally, respect the derating curve above 60 °C and leave space for convection cooling. For new projects, ask Rockwell about migration to the 1606-XLE family.

Packaging List

• 1 × Allen-Bradley 1606-XL480E-3W power supply unit

• 1 × installation instruction sheet

• Protective carton packaging

Shipping methods: Fedex, UPS, DHL.

FAQ

Q1: Is the 1606-XL480E-3W still in production?
A: No. Rockwell ended sales for the Bulletin 1606-XL series on 30 October 2017.

Q2: What makes the W suffix different?
A: The wide-input design accepts 340 to 576V AC and 450 to 820V DC continuously.

Q3: What output current does this model provide?
A: It supplies 20A at 24.5V continuously, with a 25A boost below 45 °C.

Q4: Does the unit include communication ports?
A: No. It has no built-in ports or protocols.

Q5: What is the factory output preset?
A: The output is preset to 24.5V ±0.5 percent, adjustable from 24 to 28V DC.