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Mean Well ERPF-400-48 Switching Power Supply 400W 48V 8.3A

high efficiency up to 91%, design against rain splash, low cost and high reliability

SKU:

ERPF-400-48

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Description

Features:

⦁ Universal AC input / Full range
⦁ (Withstand 300VAC surge input for 5 seconds)
⦁ Built-in active PFC function
⦁ High efficiency up to 91%
⦁ Design against rain splash
⦁ Protections: Short circuit / Overload / Over voltage/
⦁ Over temperature
⦁ Cooling by free air convection
⦁ LED indicator for power on
⦁ Low cost,high reliability
⦁ 100% full load burn-in test
⦁ 3 years warranty

General Specification:

Input Voltage
90 - 264VAC 127 - 370VDC
Inrush Current
cold start 45A/115VAC, 90A/230VAC
Over Load Protection
105 - 135% rated output power
Protection type : Constant current limiting, recovers automatically after fault condition is removed
Short Circuit Protection
Protection type : Constant current limiting, recovers automatically after fault condition is removed
Over Voltage Protection
(13.8 - 16.2V) (27.6 - 32.4V) (55.2 - 64.8V)
Protection type :Shut down O/P voltage, re-power on to recover
Over Temperature Protection
Shut down O/P voltage, recovers automatically after temperature goes down
Withstand Voltage
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
Operating Temperature
-30 - +60℃ (Refer to output load derating curve)
Safety Standard
UL60950-1,IEC/BS EN/EN62368-1, GB 4943.1, EAC TP TC 004, IS13252(Part1)(for 12,24 only) approved
Dimension (LxWxH)
220.4 x 130 x 48mm

Specifications

Brand

Mean Well
Series

Mean Well ERPF Series
Power Rating

398.4 Watt
Output Voltage

48 Volt
Rated Current

8.3 Ampere
Input Voltage

90V~264V
Standards Met

CB,CCC,CE,EAC
Operation Mode

Constant Voltage
Operating Temperature

-30°C~60°C
Warranty

3 Year
Length

22.04 cm
Width

13 cm
Height

4.8 cm
Weight

1.1 kg

File Downloads

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Frequently Asked Questions

What is the output rating of the Mean Well ERPF-400-48?

The ERPF-400-48 is rated for 48V DC output with a rated current of 8.3A. Its power rating is 398.4W, so it is typically marketed as a 400W power supply.

What input voltage range does the ERPF-400-48 support?

This model accepts a universal AC input range of 90 to 264VAC and also supports 127 to 370VDC input. It is designed for full-range input operation and can withstand a 300VAC surge input for 5 seconds.

Is the ERPF-400-48 suitable for security and enclosed power supply applications?

Yes, this model is positioned for enclosed AC-DC and security-related power supply applications. Its 48V output, built-in protections, and high-power enclosed design make it suitable for commercial and industrial use where a regulated 48V supply is needed.

How does the ERPF-400-48 perform in demanding temperature environments?

The ERPF-400-48 has an operating temperature range of -30°C to +60°C, subject to the output load derating curve. It also includes over-temperature protection that shuts down output voltage and recovers automatically after the temperature drops.

What protection features are included in the ERPF-400-48?

This power supply includes short circuit, overload, over-voltage, and over-temperature protection. Short circuit and overload protection use constant current limiting with automatic recovery, while over-voltage protection shuts down the output and requires re-powering to recover.

What are the efficiency and cooling characteristics of this model?

The ERPF-400-48 offers efficiency up to 91%, which helps reduce wasted energy in continuous-duty operation. It is cooled by free air convection, so it is designed to operate without relying on forced-air fan cooling.

What certifications and warranty does the ERPF-400-48 have?

The ERPF-400-48 is approved to standards including UL60950-1, IEC/BS EN/EN62368-1, GB 4943.1, and EAC TP TC 004. It is backed by a 3-year warranty from Mean Well.

Model	Power	Voltage	Current
Mean Well ERPF-400-24 Switching Power Supply 400W 24V 16.7A	400.8W	24V	16.7A	View
Mean Well ERPF-400-12 Switching Power Supply 400W 12V 30A	360W	12V	30A	View

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