MSP-450-48 - Power Supply Mean Well - Free user manual and instructions
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| Product Type | Single Output Switching Power Supply |
| Manufacturer | Mean Well |
| Model | MSP-450-48 |
| Output Voltage | 48V DC |
| Output Current | 9.4A |
| Output Power | 450W |
| Input Voltage Range | 90 - 264V AC |
| Input Frequency | 47 - 63Hz |
| Efficiency | 89% typical |
| Dimensions (L x W x H) | 225 x 124 x 40 mm |
| Weight | 1.1 kg |
| Cooling | Free air convection with built-in DC fan |
| Protections | Short circuit, overload, over voltage, over temperature |
| Safety Standards | UL, CUL, TUV, CB, CE approved |
| Warranty | 3 years |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 20% to 90% RH (non-condensing) |
| Connector | Screw terminal block for input and output |
| LED Indicator | Green LED for power on |
| Maintenance and Cleaning | Disconnect power, clean with dry cloth, keep fan and vents dust-free |
| Spare Parts and Repairability | Not user-serviceable; contact authorized service center for repairs |
Frequently Asked Questions - MSP-450-48 Mean Well
How do I connect the input and output terminals on the Mean Well MSP-450-48?
Connect the AC input wires to the L and N screw terminals and ground to the FG terminal. The output positive wire goes to +V and negative to -V. Ensure correct polarity and tightened connections.
What is the input voltage range?
The MSP-450-48 accepts 90-264V AC with a frequency of 47-63Hz, making it suitable for worldwide use. It automatically adjusts to the input voltage.
Can the output voltage be adjusted?
Yes, the output voltage is 48V DC but can be adjusted via the built-in potentiometer (V.ADJ) within a range of approximately 42.5-55V. Rotate the trimmer carefully using a small screwdriver.
What protections are included in this power supply?
The unit includes short circuit, overload, over voltage, and over temperature protections. When a fault occurs, the supply enters a hiccup mode or shuts down automatically.
How should the power supply be cooled?
It features free air convection plus a built-in DC fan. Ensure adequate spacing around the unit and keep fan vents unobstructed for proper airflow.
Is the MSP-450-48 suitable for outdoor use?
No, the unit is designed for indoor, dry locations. It provides an IP20 protection rating and should be installed in a protective enclosure if environmental exposure is expected.
What is the operating temperature range?
The operating temperature is -20°C to +70°C. Reduce output power at high temperatures; refer to the derating curve in the manual for safe operation.
Can multiple power supplies be connected in series or parallel?
For higher voltages, units can be connected in series but are not recommended for parallel operation without additional external circuitry. For 48V systems, use a single unit or seek technical guidance.
What safety certifications does this model have?
The MSP-450-48 is certified to UL, CUL, TUV, CB, and CE standards, ensuring compliance with international safety requirements.
How do I clean and maintain the power supply?
Disconnect power before cleaning. Use a dry, soft cloth to wipe the enclosure. Periodically inspect and remove dust from the fan and vents to prevent overheating.
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USER MANUAL MSP-450-48 Mean Well
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Product information
Brand : Mean Well
Model : MSP-450-48
Category : Power Supply