Allen-Bradley 1606-XL480E Power Supply 480W

Allen-Bradley 1606-XL480E Legacy Switched-Mode Power Supply

Product Introduction

The 1606-XL480E is a legacy member of the Allen-Bradley Bulletin 1606-XL switched-mode power supply family. It delivers a 480W class output for industrial control panels. Many machines still run on this model, so spare-unit demand remains steady. The unit provides a 24...28 V DC adjustable output, preset at 24.0 V.

This supply suits maintenance teams that keep existing 1606-XL systems running. Electronic current limiting with hiccup behavior protects the load during overloads and short circuits. Meanwhile, front-panel LEDs give quick visual status. Rockwell discontinued this model on October 30, 2017, and lists the 1606-XLE480EP as the direct replacement. Therefore, buyers typically source it for legacy machine support.

Technical Specifications

Electrical Parameters

The 1606-XL480E accepts AC 230 V nominal input with +15%/-20% tolerance. Continuous operation spans AC 184...264 V, or DC 270...370 V. The output voltage is adjustable from DC 24 to 28 V, preset at 24.0 V ±0.5%. Additionally, the unit delivers 20 A at 24 V and 18 A at 28 V.

Rated power is 480 W with typical efficiency of 91% at AC 230 V and full load. Input current reaches 5 A at rated load. Inrush current is typically 33 A at AC 264 V. Hold-up time exceeds 20 ms at AC 230 V with a 24 V/20 A load. Furthermore, ripple stays below 40 mVpp, which suits sensitive control electronics.

Mechanical and Environmental Data

The open-frame housing measures 124 mm in height, 220 mm in width, and 102 mm in depth. It weighs approximately 1.8 kg. The 1606-XL480E uses screw terminals that accept 20...10 AWG wire. Tightening torque is 0.8 Nm, so installers should use a calibrated driver.

Operating temperature spans 0 to +70 °C with derating above +60 °C. Storage temperature ranges from -25 to +85 °C. The protection rating is IP20 for DIN-rail open-frame construction. Besides, the 220 mm width requires generous rail space, so plan cabinet layout early.

Installation Guide

First, mount the 1606-XL480E on a standard DIN rail inside an enclosure. Confirm that the rail clip engages fully before releasing the unit. Next, connect the AC input wires to the designated terminals. Use 20...10 AWG wire and tighten each screw to 0.8 Nm.

After the input connection, wire the DC output to the load bus. Verify polarity before applying power. Then, adjust the front potentiometer if the application needs 28 V instead of the preset 24 V. Finally, observe the front-panel LEDs during startup. A green DC OK indication confirms normal output.

Packaging List

• 1 x Allen-Bradley 1606-XL480E Power Supply Unit

• 1 x Installation Instructions

• Shipping via Fedex, UPS, or DHL

FAQ

Q1: Is the 1606-XL480E still in production?
A1: No, Rockwell discontinued this model on October 30, 2017. The 1606-XLE480EP serves as the direct replacement. However, many suppliers still stock units for legacy machine support.

Q2: What output voltage and current does this supply provide?
A2: The 1606-XL480E delivers an adjustable DC 24...28 V output. It provides 20 A at 24 V and 18 A at 28 V. Rated power is 480 W.

Q3: How does the hiccup overload protection work?
A3: Electronic current limiting enters hiccup mode during overloads or short circuits. The supply shuts down briefly, then retries automatically. Therefore, it protects both the load and the unit from sustained fault current.

Q4: What wire size and torque does the terminal block require?
A4: Terminals accept 20...10 AWG wire, or 0.5...4 mm² stranded. Tightening torque is 0.8 Nm. Use a calibrated torque driver to avoid loose or damaged connections.

Q5: What are the dimensions and weight of the 1606-XL480E?
A5: The unit measures 124 mm (H) x 220 mm (W) x 102 mm (D). It weighs approximately 1.8 kg. The wide housing needs adequate DIN rail space inside the cabinet.