1606-XLS120E 24V DC 120W Power Supply Allen-Bradley

Product Introduction

The 1606-XLS120E belongs to the Allen-Bradley Bulletin 1606-XL Performance family of switched-mode power supplies. This model turns a wide-range single-phase AC or DC input into a regulated 24 V DC rail for industrial control circuits. Specifically, it supplies 5 A continuously and reaches a rated power of 120 W. Moreover, the BonusPower feature provides a 7.5 A reserve for short load peaks. Spring clamp terminals speed up wiring, and a DC OK relay contact reports output status. The product remains active on the official Rockwell product page, so both new builds and spare-part planning can depend on it.

Technical Specifications

The electrical design of the 1606-XLS120E emphasizes input flexibility and compact output delivery. Input voltage accepts 100–240 V AC nominal, plus a DC range of 88–360 V DC. The output is 24 V DC nominal and adjustable across 24–28 V DC. At 24 V, the unit delivers 5 A maximum, giving the full 120 W rating. Typical efficiency reaches 92.7%, which keeps heat generation low inside tight enclosures. Typical hold-up time runs 33–59 ms, so brief input dips do not disturb the load.

BonusPower and Signaling Behavior

A key feature is BonusPower, which offers up to 7.5 A of reserve current for short peaks. Therefore, the supply can start motors or charge capacitive loads without oversizing. Meanwhile, the DC OK relay contact reports output status to a PLC or indicator lamp. The unit has no communication ports and no protocols; the relay contact is the only signal path. Spring clamp terminals handle all input, output, and signal wiring, and they reduce installation time compared with screw terminals.

Mechanical and Environmental Parameters

The body measures 124 mm high, 40 mm wide, and 117 mm deep, and it weighs 0.62 kg. The narrow 40 mm width saves valuable DIN rail space in dense panels. DIN rail and wall mounting are both supported, which adds layout flexibility. The open-frame design carries an IP20 rating, so it belongs inside a protective enclosure. Operating temperature spans -25 to +70 °C, and storage temperature ranges from -40 to +85 °C. Relative humidity runs 5 to 95%. Approvals include UL 60950-1, cUL, and CE marking.

Thermal and Derating Notes

High efficiency limits internal heat, yet output power still derates at elevated ambient temperatures. Consequently, installers should leave clearance above and below the unit for convection. Wall mounting can help when panel airflow is limited. In addition, the BonusPower reserve is intended for short peaks only, not for continuous loading. Keep the DC OK relay wiring separated from power cables to avoid false signals in noisy panels.

Installation Guide

First, confirm that the mains supply falls within 100–240 V AC or 88–360 V DC. Next, mount the 1606-XLS120E on a DIN rail or a flat wall surface inside the enclosure. After that, connect input, output, and relay wires using the spring clamp terminals, observing polarity. Then set the output voltage within 24–28 V DC using the front adjustment. Finally, apply power and check the DC OK contact state. Leave ventilation clearance, and route signal wires away from noisy power lines throughout the panel.

Packaging List

• 1 × Allen-Bradley 1606-XLS120E Power Supply Unit

• 1 × Original Protective Carton

• 1 × Installation Reference Sheet (if included by the supplier)

Shipping: Fedex, UPS, DHL.

FAQ

Q1: What is BonusPower on the 1606-XLS120E?
BonusPower is a reserve current feature. It provides up to 7.5 A for short peaks, above the 5 A continuous rating. Use it for motor starts or capacitive loads, not for continuous operation.

Q2: Can this supply accept DC input?
Yes. The input accepts 100–240 V AC nominal and also 88–360 V DC. This wide range suits battery-backed systems and unstable mains feeds.

Q3: Does the 1606-XLS120E support communication protocols?
No. It has no communication ports and no protocols. The DC OK relay contact is the only status output, and it works as a dry signal for PLCs or lamps.

Q4: What terminal type does this model use?
It uses spring clamp terminals. These accept standard industrial wire sizes and reduce wiring time compared with screw terminals.

Q5: How much hold-up time does the supply provide?
Typical hold-up time is 33–59 ms. This window covers brief input dips, so the 24 V rail stays stable during short disturbances.