1606-XL480E-3W Allen-Bradley 490W 3-Phase PSU | Oiltech

1606-XL480E-3W | Allen-Bradley | 24.5 V DC 490 W Wide-Input Three-Phase Power Supply (Discontinued)

The Allen-Bradley 1606-XL480E-3W is a legacy Bulletin 1606-XL power supply. The W suffix marks a wide input window. It runs from 3-phase 400–500 V AC ±15%, with continuous AC range 340–576 V and DC range 450–820 V. Output is preset to 24.5 V ±0.5%, adjustable to 28 V DC. It delivers 20 A (490 W) at 0–60 °C. A 612 W boost gives 25 A at 0–45 °C. The series ended sale on 2017-10-30. We source tested units for panels that still depend on this platform.

Specification Table

• Brand: Allen-Bradley
• Model: 1606-XL480E-3W
• Series: Bulletin 1606-XL, legacy, W suffix wide input
• Input: 3-phase AC 400–500 V ±15%; continuous AC 340–576 V, DC 450–820 V
• Output: 24–28 V DC, preset 24.5 V ±0.5%
• Output current: 20 A (490 W) at 0–60 °C; 25 A boost (612 W) at 0–45 °C
• Efficiency: up to 92.2%
• Mounting: DIN rail
• Dimensions (H×W×D): 124 × 150 × 121 mm
• Weight: 1.8 kg
• Protection rating: IP20, open-frame construction
• Approvals: UL 60950-1 / cUL / CE marked
• Lifecycle: Discontinued. Bulletin 1606-XL end of sale 2017-10-30. Series migrates to 1606-XLE / XLS.

Environment and Limits

• Operating temperature: 0 to +70 °C
• Derating required above +60 °C
• Storage temperature: -25 to +85 °C
• Relative humidity: not published by the manufacturer
• IP20 — open-frame unit, mount inside an enclosure
• No communication port. No protocols. No bus diagnostics.

Why the W Suffix Matters

The 1606-XL480E-3W differs from the standard 1606-XL480E-3 in input tolerance. The wide window accepts 340–576 V AC continuous. That covers weak grids, generator feeds, and sites with voltage sag. The DC range of 450–820 V allows DC bus supply. Output sits at 24.5 V instead of 24.0 V, which compensates for cable drop in long runs. Boost reaches 612 W for short peaks. This is a legacy part. Plan the transition to 1606-XLE or 1606-XLS carefully. Verify input wiring and terminal layout before any swap.

Compatible Equipment and Use Cases

• Legacy Bulletin 1606-XL panels with unstable three-phase feeds.
• Sites running 400–500 V AC with ±15% tolerance needs.
• DC bus installations at 450–820 V DC.
• Machines needing 490 W continuous or 612 W short-term boost.
• Repair projects for discontinued Rockwell power supplies.

Installation Notes

• Mount on DIN rail. Allow convection clearance around the open frame.
• Confirm input voltage and phase sequence before power-up.
• Set output under load. Range: 24–28 V DC. Preset is 24.5 V.
• Derate above +60 °C ambient.
• Keep the unit inside an IP20-compliant enclosure.
• Plan a migration path if long-term support is required.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spare parts supply.
• Global shipping with FedEx, UPS, and DHL.
• Tested surplus and refurbished units.
• 12-month warranty on qualifying products.
• Technical verification before shipment.
• Support for obsolete and discontinued control systems.

Dispatch, Packaging, and Warranty

• Dispatch: ships within 24–28 hours after order confirmation.
• Carriers: FedEx, UPS, and DHL with tracking.
• Packaging: 1 × Allen-Bradley 1606-XL480E-3W, shock protection, protective carton.
• Warranty: 12 months from shipment date. Covers functional defects under normal use.
• Documentation: connection reference included when available.

Oiltech Controls Insight — Field Review

The 1606-XL480E-3W exists for plants with uneven mains. The wide input window keeps the 24 V rail alive when phase voltage dips. The 24.5 V preset helps long cable runs to field cabinets. Engineers like the 612 W boost for contactor banks. The main risk is lifecycle. The model is discontinued and no direct replacement is listed at model level. Buy a tested spare, record load and ambient data, and plan the move to the 1606-XLE or XLS series. Check terminal layout before you swap.

FAQ — Selection and Field Guidance

Q: What is different between the 1606-XL480E-3W and the 1606-XL480E-3?

A: The W version has a wider input window and a 24.5 V preset. It accepts 340–576 V AC continuous. The standard model is narrower. Check the panel feed before you choose.

Q: Can this unit run from a DC bus?

A: Yes. The DC input range is 450–820 V. Confirm bus voltage, polarity, and protection first. DC operation changes hold-up and ripple behavior.

Q: Is there a direct replacement for the 1606-XL480E-3W?

A: No model-level replacement is listed. The Bulletin 1606-XL series migrates to 1606-XLE or XLS. Compare input range and output current before you redesign the panel.

Q: Why is the output preset 24.5 V instead of 24.0 V?

A: The higher preset offsets cable drop on long field runs. Verify voltage at the load, not only at the terminals. Adjust within 24–28 V DC as needed.

Q: How do I protect a line that uses a discontinued wide-input supply?

A: Keep a tested spare with a load test report. Log ambient temperature and load current. Contact info@oiltechcontrols.com for stock and test details. The 12-month warranty covers functional defects.

Contact and Ordering Support

Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

Send your input voltage, DC bus details, and load current. We confirm fit before dispatch.

Copyright © 2026 Oiltech Controls Limited. https://www.oiltechcontrols.com/ All rights reserved.
All rights reserved.