The Allen-Bradley 1606-XLE120E answers the modern control engineer’s need for a compact, efficient, and globally compliant power supply. Its 20% power reserve, wide temperature range, and peak current capability support demanding loads, while its slim DIN-rail format saves panel space. By combining rugged electrical performance with environmental responsibility and agency approvals, this unit proves that small power supplies can deliver big reliability – a perfect match for today’s space-sensitive, safety-critical automation systems.

The Allen-Bradley 1606-XLE120E is a 24V, 5A single-phase power supply designed for space-constrained industrial cabinets. Measuring just 32x124x117mm and weighing 500g, it provides 120W of continuous output and a 20% power reserve (144W) at temperatures up to +45°C. Why does this matter? Because control panel real estate is valuable, and a smaller power supply leaves room for other automation components. The unit operates from -25°C to +70°C, with derating above +45°C, and accepts a wide AC input range of 90-132Vac and 180-264Vac with auto-select functionality, eliminating the risk of wrong voltage switch settings. Its active power factor correction (0.56 typical at 120Vac) and high efficiency (up to 90.2% at 230Vac) reduce energy waste and cooling demands. Engineers can rely on its T4A internal fuse, MOV input transient protection, and electronic overload/short-circuit protection, making it a robust foundation for any machine control system.

When and Where Should You Use the Peak Current Capability and Hold-Up Time?

Understanding when the 1606-XLE120E’s peak current capability becomes critical helps avoid unexpected system resets. The unit delivers 25A for 2ms or 10A for 50ms from its output capacitors, which is essential for starting solenoids, contactors, or capacitive loads that demand high inrush currents. Similarly, the hold-up time – 80ms at 5A load on 120Vac input – keeps the 24V output alive during brief mains interruptions, allowing a PLC or HMI to complete safe shutdown routines. Where should these features be applied? In packaging machines, conveyor systems, and printing equipment where momentary voltage dips cannot be tolerated. The power supply also withstands back-feeding loads up to 35Vdc, making it suitable for applications with decelerating motors or inductive kickbacks. For redundant systems, two units can be paralleled with a redundancy module (1606-XLSRED), though parallel operation for increased output power is not permitted – a design choice that prioritises safety and load sharing stability.

How Does the 1606-XLE120E Adapt to Modern Automation Trends and Harsh Environments?

The evolution of industrial power supplies demands adaptability, and the 1606-XLE120E meets trends like cabinet miniaturisation, energy efficiency, and global compliance. Its convection-cooled design eliminates fans, reducing dust ingress and failure points. With approvals including UL 508 (Industrial Control Equipment), UL 60950-1 (IT equipment), and CE marking for EMC (EN 61000-6-2/-4) and LVD, the unit is ready for worldwide installation. How does it handle harsh conditions? It resists sinusoidal vibration (2g up to 500Hz) and shock (30g for 6ms), operates at 5-95% humidity without condensation, and carries an IP20 protection rating. The screw terminals accept 20-10 AWG wire, and the required PE (Protective Earth) connection ensures safety. Additionally, the unit uses halogen-free plastics, no silicone, and avoids toxic substances like PCB or cadmium, aligning with RoHS and environmental trends. For Industry 4.0 integration, its DC-OK LED provides local status, while external monitoring can be added via the 1606-XLSRED redundancy module’s alarm contact.

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