EPS-45-48 - Power Supply Mean Well - Free user manual and instructions
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| Product Type | Switching Power Supply |
| Series | EPS-45 |
| Input Voltage Range | 90 ~ 264 VAC or 127 ~ 370 VDC |
| Output Voltage | 48 V |
| Output Current | 0.94 A |
| Output Power | 45 W |
| Efficiency | 88% (typical at full load) |
| Short Circuit Protection | Yes, automatic recovery |
| Overload Protection | Yes, constant current limiting |
| Over Voltage Protection | Yes, clamped type |
| Cooling Method | Free air convection |
| Operating Temperature | -30°C to +70°C (with derating) |
| Storage Temperature | -40°C to +85°C |
| Dimensions (L x W x H) | 159 x 97 x 38 mm |
| Weight | 0.35 kg |
| Safety Standards | UL, TUV, CB, CE, EAC |
| Maintenance | Keep ventilation openings clear; inspect periodically for dust and loose connections |
| Cleaning | Disconnect from power before cleaning; use a dry, soft cloth |
| Spare Parts | No user-serviceable parts; replace the entire unit if faulty |
| General Information | Enclosed industrial power supply with screw terminal block and LED indicator |
Frequently Asked Questions - EPS-45-48 Mean Well
What is the input voltage range for the Mean Well EPS-45-48?
The EPS-45-48 accepts a universal input of 90-264 VAC or 127-370 VDC, making it suitable for use in most countries.
How do I connect the output wires to this power supply?
Connect the positive and negative loads to the output terminals marked on the unit. Make sure the polarity is correct and that the screws are tightened securely. Always disconnect the input power before making any connections.
Does the EPS-45-48 have short circuit protection?
Yes, it features short circuit protection with automatic recovery. If a short occurs, the unit will safely shut down and resume operation once the fault is removed.
Can I mount the power supply on a DIN rail?
No, the EPS-45-48 is designed for screw-mounting on a flat surface using the mounting holes provided on the case. It is not a DIN-rail module.
What is the operating temperature range?
The unit can operate from -30°C to +70°C, but derating may be required above +50°C depending on load and mounting conditions. Refer to the manual for the derating curve.
Is the EPS-45-48 suitable for outdoor use?
No, it is designed for indoor use only with proper protection against moisture and dust. It should be placed in a clean, dry environment with adequate ventilation.
Can I adjust the output voltage?
The output voltage is fixed at 48V. Some versions of the EPS-45 series may include an internal trimmer, but the standard model does not have a user-adjustable output.
What safety certifications does the EPS-45-48 have?
It is certified with UL, TUV, CB, CE, and EAC standards, ensuring safe operation for industrial and commercial applications.
What is the warranty period for this power supply?
Mean Well provides a 3-year warranty for the EPS-45 series, covering manufacturing defects under normal use.
Can the power supply handle a 230V mains input?
Yes, the EPS-45-48 is rated for 90-264 VAC, so it works perfectly with 230V mains, as well as 110V mains, without any manual switching.
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USER MANUAL EPS-45-48 Mean Well
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Product information
Brand : Mean Well
Model : EPS-45-48
Category : Power Supply