NFM-20-5 - Power Supply Mean Well - Free user manual and instructions
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| Product type | AC/DC power supply |
| Brand | Mean Well |
| Model | NFM-20-5 |
| Input voltage | 90-264 VAC |
| Output voltage | 5 V DC |
| Output current | 4 A |
| Output power | 20 W |
| Efficiency | 78% typ. |
| Dimensions (L x W x H) | 78 x 51 x 28 mm |
| Weight | 180 g |
| Operating temperature | -20 to +70 degrees Celsius |
| Cooling | Free air convection |
| Protection functions | Short circuit, overload, overvoltage |
| Mounting type | PCB mounting |
| Maintenance | No regular maintenance required; keep clean and dry |
| Safety compliance | UL, TUV, CE certified |
| Reparability | Non-repairable internal parts; replace the unit |
Frequently Asked Questions - NFM-20-5 Mean Well
What is the input voltage range for the Mean Well NFM-20-5?
The NFM-20-5 accepts a universal input from 90 to 264 VAC, making it suitable for use worldwide.
What output voltage and current does the NFM-20-5 provide?
It provides a regulated 5 V DC output with a maximum current of 4 A, delivering up to 20 W of power.
Does the NFM-20-5 include short circuit protection?
Yes, it is equipped with short circuit, overload, and overvoltage protection to safeguard connected equipment.
Can I use the NFM-20-5 in medical equipment?
Yes, the NFM-20 series is designed with medical safety approvals and a suitable isolation rating for medical applications.
Does the power supply require a cooling fan?
No, the NFM-20-5 is cooled by free air convection. It operates efficiently without a fan under normal conditions.
What are the dimensions of the NFM-20-5?
The module measures approximately 78 x 51 x 28 mm, which is compact enough for embedded installations.
What is the operating temperature range?
It can operate in -20 to +70 degrees Celsius, with output derating above 50 degrees Celsius.
How should I mount the NFM-20-5?
The unit is designed for PCB mounting with pin connections. Ensure proper spacing and airflow around the module.
How do I clean the power supply?
Use a dry soft cloth to wipe the enclosure. Avoid liquids and solvents to prevent damage to internal circuits.
Is the NFM-20-5 available with a warranty?
Mean Well provides a 3-year warranty for the NFM-20 series, subject to normal use and installation conditions.
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USER MANUAL NFM-20-5 Mean Well
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Product information
Brand : Mean Well
Model : NFM-20-5
Category : Power Supply