RD-125-2448 - Cables for Computers and Peripherals Mean Well - Free user manual and instructions
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| Product Type | Dual Output Switching Power Supply |
| Brand | Mean Well |
| Model | RD-125-2448 |
| Category | Cables for Computers and Peripherals |
| Input Voltage | 88-264 VAC at 47-63 Hz |
| Output Voltage 1 | 24V DC |
| Output Voltage 2 | 48V DC |
| Output Current 1 | 3.2A maximum |
| Output Current 2 | 1.6A maximum |
| Total Output Power | 125W |
| Dimensions | 199 x 98 x 38 mm (L x W x H) |
| Weight | 0.68 kg |
| Cooling Method | Natural convection (fanless) |
| Efficiency | 84% typical at full load |
| Protections | Short circuit, overvoltage, overload, and thermal protection |
| Operating Temperature | -10°C to +60°C (derated above 45°C) |
| Certifications | UL, CUL, TUV, CB, CE approved |
| Primary Functions | Converts AC power to dual DC outputs for industrial and telecommunication equipment |
| Maintenance | Periodically remove dust; check terminal connections; ensure unobstructed airflow |
| Safety | Earth ground terminal for safe operation; disconnect from mains before any service |
| Spare Parts and Repairability | Designed for replacement rather than component-level repair; internal fuse is enclosed |
| General Information | Compact metal case with screw terminal block for easy wiring; suitable for chassis mounting |
Frequently Asked Questions - RD-125-2448 Mean Well
What are the output voltages and currents of the Mean Well RD-125-2448?
The RD-125-2448 provides two outputs: 24V DC with up to 3.2A and 48V DC with up to 1.6A, for a total power of 125W.
How do I connect the input AC supply to the RD-125-2448?
Connect the AC power wires to the screw terminal block labeled L (Live), N (Neutral), and earth ground. Ensure the power supply is disconnected before making connections.
Can the RD-125-2448 be used with both 110V and 220V AC?
Yes, the RD-125-2448 has a universal input range of 88-264 VAC, making it compatible with both 110V and 230V mains without manual switch selection.
What protections are built into the RD-125-2448?
It includes short circuit, overvoltage, overload, and thermal protection. These safety features prevent damage to the power supply and connected equipment.
What is the maximum ambient operating temperature?
The unit can operate from -10°C to +60°C. However, output power should be derated above 45°C to ensure stable long-term performance.
How should I mount the power supply for proper cooling?
Mount the supply on a flat metal surface using the mounting holes. Keep at least 2 cm clearance around the unit to allow natural convection airflow. Avoid enclosing it without ventilation.
Can I adjust the output voltage?
The RD-125-2448 has a non-adjustable output in standard versions. Some models may include a trimming potentiometer, but this model generally delivers fixed voltages.
How do I clean the power supply?
Disconnect the unit from mains, then use dry compressed air to remove dust. Wipe the enclosure with a soft, dry cloth. Do not use solvents or water.
Is it safe to use the power supply in a metal enclosure?
Yes, the screw-terminal design and protective features make it safe. Ensure the enclosure is properly grounded and ventilated to prevent overheating.
What does the model number RD-125-2448 indicate?
The prefix RD-125 denotes the series and wattage (125W), while 2448 specifies the dual output voltages: 24V and 48V DC.
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USER MANUAL RD-125-2448 Mean Well
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Product information
Brand : Mean Well
Model : RD-125-2448
Category : Cables for Computers and Peripherals