Allied Telesis AT-DRB50-48-1 50W DC POWER SUPPLY

Product Overview

The Allied Telesis AT-DRB50-48-1 is a 50W single-output industrial DIN rail power supply delivering a constant 48V DC output. Designed for demanding industrial, building automation, and process control applications, it operates from a universal AC input (85–264V AC) with up to 91% efficiency. Its narrow DIN-rail form factor saves panel space while providing reliable power for Allied Telesis industrial switches and converters.

Product Description

Part of Allied Telesis’ DRB Series, the AT-DRB50-48-1 delivers a stable 48V DC output at up to 50W to power industrial Ethernet switches, media converters, and other DIN-rail-mounted networking equipment. The industry-leading 91% efficiency rating minimizes heat generation and operating costs, while EN61000-3-2 compliance enables worldwide deployment. The universal AC input (85–264V AC, 50/60 Hz) eliminates voltage compatibility concerns across global installations. Housed in a robust, narrow plastic enclosure, the power supply snaps directly onto standard 35mm DIN rails. The unit can also withstand voltage surges of up to 300V AC for 5 seconds, ensuring resilience in electrically noisy industrial environments. With its combination of high efficiency, compact design, and broad input range, the AT-DRB50-48-1 is the ideal companion PSU for Allied Telesis industrial networking deployments.

Key Features

• 48V DC Constant Output — Provides stable, regulated 48V DC power suitable for industrial Allied Telesis switches and converters.
• 50W Maximum Output Power — Sufficient capacity for powering DIN-rail network equipment in compact panels.
• 91% Efficiency — Industry-leading efficiency reduces heat, energy costs, and improves system reliability.
• Universal AC Input (85–264V AC) — EN61000-3-2 compliant; supports worldwide single-phase AC installations.
• Standard 35mm DIN Rail Mount — Compact 1.2” wide body snaps onto DIN rail for easy panel integration.
• 300V AC Surge Tolerance — Withstands 300V AC surge for 5 seconds, protecting against industrial electrical noise.
• Robust Plastic Enclosure — Narrow, space-saving design built for industrial environments.

Technical Specifications

Frequently Asked Questions

Q: What Allied Telesis equipment does the AT-DRB50-48-1 power?

The AT-DRB50-48-1 is designed to power DIN-rail-mounted Allied Telesis industrial Ethernet switches and media converters requiring a 48V DC input, such as those in the iMG and convertIIT product families.

Q: Can this PSU be used outside North America?

Yes. The universal 85–264V AC input and EN61000-3-2 compliance allow deployment worldwide without voltage adapters.

Q: Is redundant power supply operation supported?

The AT-DRB50-48-1 is a single-output PSU. Redundant configurations can be achieved by pairing multiple units on the DIN rail with appropriate load-sharing hardware.

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