Technical Specifications

FAQ

1. What is the main function of the 1606-XLP90E-2?
The 1606-XLP90E-2 is a compact industrial switching power supply designed to convert 2-phase 380–480 VAC input power into a regulated 24 VDC output. With a rated output power of 90 W and a rated output current of 3.75 A, it can provide stable DC power for industrial control equipment, automation components, sensors, relays, interface devices, and other 24 VDC loads. The output voltage can be adjusted within the 24–28 VDC range, allowing the power supply to be adapted to different control-system requirements.

2. What input voltage does the 1606-XLP90E-2 require?
The 1606-XLP90E-2 uses a 2-phase 380–480 VAC input and has an operational input range of approximately 323–552 VAC. It is designed specifically for higher-voltage industrial AC power systems rather than standard single-phase 120/230 VAC applications. Before installation, the available supply voltage should be checked carefully to ensure it falls within the specified operating range. Applying an unsuitable input voltage can cause improper operation, overheating, or permanent damage to the power supply.

3. What output voltage and current does the 1606-XLP90E-2 provide?
The nominal output is 24 VDC with a rated output current of 3.75 A and a maximum rated power of 90 W. The output voltage can be adjusted from 24 to 28 VDC. As the output voltage is increased, the available continuous output current is reduced, so the power supply should not be operated beyond its 90 W power rating. When selecting loads, the combined current consumption of connected PLCs, sensors, relays, communication equipment, and other DC devices should be calculated to ensure adequate operating margin.

4. Can the 1606-XLP90E-2 be mounted on a DIN rail?
Yes. The 1606-XLP90E-2 supports DIN rail mounting and is intended for installation in industrial control panels. DIN rail installation provides a practical method for mounting the power supply alongside PLCs, circuit breakers, terminal blocks, relays, and other automation equipment. During installation, sufficient clearance should be maintained around the power supply to allow heat to dissipate properly. The mounting position should also provide easy access to the input and output terminals for inspection and maintenance.

5. What protection and electrical features does the 1606-XLP90E-2 have?
The power supply provides regulated DC output and includes several features intended for reliable industrial operation. It has an NTC-based input inrush current limiter, an IP20 enclosure rating, and NEC Class 2 functionality. Typical efficiency is approximately 89.5%, while maximum ripple and noise are specified at 50 mVpp. The unit also provides a hold-up time exceeding 93 ms under the specified 480 VAC condition. These characteristics help reduce the effect of normal input disturbances and provide a stable DC supply for connected control equipment.

6. What happens if the 24 VDC output becomes overloaded?
If the connected load requires more current than the power supply can continuously provide, the output may no longer remain within its normal operating conditions. An overload can cause output voltage to fall, increase thermal stress, or activate internal protection mechanisms depending on the severity and duration of the condition. The total current demand of all connected devices should therefore be calculated before commissioning. If an overload occurs repeatedly, the connected loads, wiring, short circuits, and downstream devices should be checked rather than repeatedly resetting the power supply.

7. What should be checked if the 1606-XLP90E-2 has no 24 VDC output?
Troubleshooting should begin by verifying that the correct 2-phase AC input voltage is present at the input terminals and that the upstream circuit protection has not operated. The input wiring and terminal connections should then be checked for loose or incorrectly connected conductors. If the input supply is normal, the DC output should be measured with a suitable meter while considering the connected load. A short circuit or excessive load on the 24 VDC side can prevent normal output operation. If the input voltage is correct, the load is within specification, and the output remains absent or substantially below the expected value, the power supply itself may require further testing or replacement.

8. How should the 1606-XLP90E-2 be installed for reliable long-term operation?
The power supply should be installed on a suitable DIN rail inside an electrical control cabinet with adequate ventilation and sufficient space around the unit. The input wiring must be connected to the correct 2-phase 380–480 VAC supply, while the DC output wiring should be sized according to the expected load current. The total connected load should remain within the 90 W rating, and the output voltage should be adjusted only when necessary for the application. Before commissioning, verify input voltage, output voltage, polarity, terminal tightness, grounding requirements, and load current. Proper panel ventilation is also important because excessive ambient temperature can reduce the available output capacity and shorten component life.