MSP-450-3.3 - Power Supply Mean Well - Free user manual and instructions
Find the device manual for free MSP-450-3.3 Mean Well in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | AC/DC Power Supply |
| Brand | Mean Well |
| Model | MSP-450-3.3 |
| Input Voltage | 90-264 VAC (universal) |
| Input Frequency | 47-63 Hz |
| Output Voltage | 3.3 V DC (adjustable: 2.85-3.8 V) |
| Output Current | 90 A |
| Output Power | 297 W |
| Efficiency (Typical) | 78% |
| Protection | Short circuit, overload, overvoltage, over temperature |
| Cooling | Built-in DC fan (speed controlled) |
| Mounting | Panel mount with included brackets |
| Connector Type | Screw terminal blocks (input and output) |
| Status Indicator | Green LED for power-on |
| Operating Temperature | -25°C to +70°C (derate above 50°C) |
| Dimensions (W x L x H) | 220 x 120 x 50 mm |
| Weight | 1.2 kg |
| Compliance | UL 60950-1, EN 62368-1, CE |
| Warranty | 2 years |
| Maintenance | Clean with dry cloth; ensure unobstructed airflow |
| Repairability | No user-serviceable parts; contact qualified technicians |
Frequently Asked Questions - MSP-450-3.3 Mean Well
What is the output voltage of the Mean Well MSP-450-3.3?
The output voltage is 3.3 V DC, adjustable from 2.85 V to 3.8 V using the onboard potentiometer.
How do I adjust the output voltage?
Use a small flat-head screwdriver to turn the V.ADJ potentiometer clockwise to increase or counterclockwise to decrease the voltage.
Is the power supply protected against overloads?
Yes, it includes overload protection with automatic recovery once the fault condition is removed.
What is the input voltage range?
It accepts a universal input of 90-264 VAC, with a frequency range of 47-63 Hz.
Can I use this power supply in series or parallel?
The MSP-450 series supports series operation for higher voltages and parallel operation for higher current with external wiring; consult the manual for detailed requirements.
How should I connect the AC input wires?
Connect Line (L), Neutral (N), and Ground (G) wires to the respective screw terminals on the input block.
What should I do if the power supply does not start?
Check AC input voltage and connections, verify any remote ON/OFF wiring, and ensure the load is not short-circuited. If the issue persists, contact a qualified technician.
What is the recommended maintenance for this device?
Periodically clean the fan and outer surfaces with a dry, non-conductive cloth. Keep vents free of dust and avoid blocking airflow.
What are the mounting requirements?
Mount the unit on a flat panel using the included brackets, leaving at least 5 cm clearance on all sides for proper cooling.
Does the power supply have a warranty?
Mean Well provides a 2-year limited warranty covering manufacturing defects under normal operating conditions.
User questions about MSP-450-3.3 Mean Well
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Power Supply in PDF format for free! Find your manual MSP-450-3.3 - Mean Well and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. MSP-450-3.3 by Mean Well.
USER MANUAL MSP-450-3.3 Mean Well
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : Mean Well
Model : MSP-450-3.3
Category : Power Supply