Product Overview
Industrial control systems demand reliable power conversion to maintain uptime and protect downstream equipment. The Allen-Bradley 1606-XLS480E is a fundamental power supply within the 1606 series of switched mode power supplies. It supports both AC and DC converter applications, catering to a wide range of voltage inputs with efficient output properties. This unit is engineered for environments where consistent 24-volt power is critical for PLCs, sensors, and actuators.

Technical Specifications Breakdown
Key parameters for the 1606-XLS480E are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Allen Bradley |
| Product Type | Essential Power Supply |
| Product Line | 1606 Switched Mode Power Supplies |
| Part Number | 1606-XLS480E |
| UPC | 662074643974 |
| Weight | 2.56 lbs (1.16 kg) |
| AC Input Voltage | 100 to 240 Volts AC |
| DC Input Voltage | 110 to 150 Volts DC |
| Nominal Output Voltage | 24 Volts |
| Nominal Output Current | 20 Amps |
| Output Voltage Adjustment Range | 24 to 28 Volts |
| Output Current Range | 20 to 17 Amps |
| Output Power | 480 Watts |
| Output Power Reserves | 50% |
| Typical Power Factor | 0.9 Factor |
| Typical Efficiency Rating | 93.90% |
| Typical Rated Power Loss | 31.4 Watts |
| Ambient Operating Temperature | -13 to 158 degrees Fahrenheit |
Industry Applications
Machine Tool Power Distribution
In automated machining centers, the 1606-XLS480E provides stable 24V DC power to CNC controllers and servo drives. Its 50% output power reserve handles inrush currents during spindle acceleration without voltage dips.
Conveyor System Control
Material handling systems require reliable power for PLC racks and field I/O. This power supply's 93.9% efficiency reduces heat buildup in cabinets, extending the life of adjacent electronics.
Process Instrumentation
For chemical and pharmaceutical plants, the wide AC input range (100-240V) allows global deployment. The adjustable output voltage (24-28V) compensates for voltage drops over long cable runs to remote sensors.

Installation & Setup Guidance
Mount the unit on a DIN rail or flat panel using the integrated clips. Ensure adequate airflow around the enclosure; the ambient operating temperature range is -13 to 158 degrees Fahrenheit. Connect AC or DC input according to the terminal markings. For DC input, observe polarity. The output terminals accept 20A continuous load; use appropriately rated wiring and fusing. Adjust the output voltage potentiometer only when the load is disconnected to avoid overshoot.
Maintenance & Reliability
Inspect the unit periodically for dust accumulation on ventilation slots. Clean with dry compressed air only. Verify that the output voltage remains within the adjustment range under load. The 50% power reserve provides a safety margin for transient loads, reducing stress on internal components. No routine calibration is required.
Compatibility & Integration
This power supply integrates with any 24V DC industrial system. It pairs with Allen-Bradley CompactLogix and MicroLogix controllers, as well as third-party PLCs. The wide input range makes it suitable for both North American (120V) and European (230V) installations.
Selection Guide & Purchasing Advice
When selecting a power supply, match the total load current to the nominal 20A output. For applications with high inrush or motor loads, the 50% power reserve ensures reliable startup. Contact AutoDCSTech for current stock and lifecycle status before ordering. Our team can help verify compatibility with your existing system.
Troubleshooting & Common Issues
If the output voltage is absent, check the input source and fusing. If the unit cycles on and off, the load may exceed the current limit; reduce the load or increase output voltage within the 24-28V range. Over-temperature shutdown occurs if ambient temperature exceeds 158°F; improve cabinet ventilation. The power factor of 0.9 indicates good line utilization; if input harmonics are a concern, add a line reactor upstream.
Availability & Condition at AutoDCSTech
| Part Number | 1606-XLS480E |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
