Technical Specifications

FAQ

1. What is the main function of the Allen Bradley 1606-XLS960E power supply?
The 1606-XLS960E is a high-power industrial switched-mode power supply designed to convert AC input power into regulated 24 VDC power for automation and control systems. With up to 960 W of continuous output power and a rated output current of 40 A at 24 VDC, it is suitable for PLC systems, remote I/O, industrial communication equipment, sensors, actuators, relays, and other DC loads installed in control cabinets.

2. What input voltage does the 1606-XLS960E accept?
The 1606-XLS960E is designed for single-phase AC input and supports a wide nominal input range of 100–240 VAC at 50–60 Hz. This wide input capability allows the same power supply to be used in control panels supplied from different AC voltage systems without requiring a separate transformer for standard input-voltage conversion.

3. What output voltage and current can the 1606-XLS960E provide?
The output voltage is adjustable from approximately 24 to 28 VDC. At the nominal 24 VDC setting, the unit can continuously deliver up to 40 A, corresponding to 960 W of output power. At higher output-voltage settings, the permissible continuous current decreases, allowing the power supply to remain within its rated power capability.

4. Can the 1606-XLS960E handle temporary high-load conditions?
Yes. The power supply incorporates reserve-power capability that can temporarily provide significantly more current than its normal continuous rating. This is particularly useful when industrial loads such as DC motors, capacitive loads, solenoids, contactors, or other equipment require a high starting current. The reserve capability is intended for short-duration conditions rather than continuous operation.

5. What protection and monitoring functions are available?
The 1606-XLS960E incorporates several functions intended to protect the power supply and connected equipment. These include controlled input inrush current, stabilized output regulation, overload management, thermal protection, and DC-OK monitoring. The DC-OK signal can also be integrated into a PLC or control system for power-supply status monitoring and fault diagnostics.

6. How should the 1606-XLS960E be installed in an industrial control cabinet?
The unit is intended for installation inside an appropriate electrical enclosure and can be mounted on a DIN rail. Adequate ventilation should be maintained around the power supply because heat generated during operation must be dissipated. Input and output wiring should be correctly sized for the expected current, and appropriate upstream circuit protection should be provided according to the installation design and applicable electrical standards.

7. What are common symptoms of a failing 1606-XLS960E?
Typical symptoms can include loss of the 24 VDC output, unstable output voltage, repeated overload behavior, DC-OK status failure, excessive heating, or inability to maintain the required output voltage when the connected load increases. Troubleshooting should begin by checking the AC input, input protection, output wiring, connected-load current, terminal connections, and DC output voltage before concluding that the power supply itself has failed.

8. Can the 1606-XLS960E be used to power PLC and I/O systems directly?
Yes. The regulated 24 VDC output makes the 1606-XLS960E suitable for supplying many industrial automation loads, including PLC CPUs, I/O modules, communication devices, sensors, relays, and other control components. When selecting it for a particular system, the engineer should calculate the total continuous load current as well as transient or startup requirements. It is also good practice to maintain sufficient power margin rather than operating the supply continuously at its absolute maximum rating.