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Mean Well EPP-400-12 Power Supply 250W 12V

Q: Can I use the EPP-400-12 for a 12V PLC, HMI, or control-panel power bus?

Yes, for 12V constant-voltage control equipment with a combined load up to 20.8A and 249.6W. That makes it suitable for higher-current 12V panel applications where multiple devices share one DC supply.

Q: Is the EPP-400-12 suitable for 12V embedded computers or industrial electronics?

It can be a fit for embedded or industrial electronics that require regulated 12V DC and stay within 20.8A. The available 249.6W capacity gives more headroom than lower-power 12V models in the same series.

Q: Can this model power several 12V automation accessories from one supply?

Yes, provided the accessories are 12V constant-voltage loads and their total demand does not exceed 20.8A or 249.6W. This is useful when a single 12V source is needed for multiple industrial or automation devices.

Q: Is the EPP-400-12 appropriate for 12V test benches or production fixtures?

It can be used where a fixture or bench setup needs a constant 12V output with up to 20.8A available. The 80-264VAC input range also supports facilities with different AC mains conditions.

Q: Can the EPP-400-12 be used in outdoor or temperature-variable environments?

Its specified operating range is -30°C to +70°C, which supports use in equipment exposed to substantial temperature variation. No IP rating is listed in these specs, so weather-exposed outdoor use should not be assumed without additional enclosure protection.

5" x 3", high efficiency up to 93%, economical PFC, no load power consumption

SKU:

EPP-400-12

End of Life, Succeeded by LOP-400-12

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Description

No load power consumption under 0.5W by PS-ON controlStandby 5V@1A with fan, @ 0.6A without fan

<0.75mA / 240VAC

Key Features

✓✓Universal AC input / Full range
✓✓Built-in active PFC functionEMI Class B for Class I & Class A for Class II configuration
✓✓High efficiency up to 93%
✓✓Withstand 300VAC surge input for 6 secondsNo load power consumption<0.5W by PS ON control5"x3" miniature sizeHigh efficiency up to 94%
✓✓Protections: Short circuit/Overload/Over voltage/Over temperature
✓✓Cooling by free air convection for 250W and 400W with 25 CFM forced airBuilt-in 12V/0.5A FANWith power good and fail signal outputBuilt-in remote sense function
✓✓No load power consumption under 0.5W by PS-ON controlStandby 5V@1A with fan, @ 0.6A without fan
✓✓LED indicator for power onOutput 18V available
✓✓Operating altitude up to 5000 meters
✓✓3 years warranty

Specifications

Brand

Mean Well
Series

EPP Series
Power Rating

249.6 Watt
Output Voltage

12 Volt
Rated Current

20.8 Ampere
Input Voltage

80V~264V
Standards Met

CB,CCC,CE,EAC,TUV,UL
Operation Mode

Constant Voltage
Operating Temperature

-30°C~70°C
Warranty

3 Year
Length

12.7 cm
Width

7.62 cm
Height

3.5 cm
Weight

0.39 kg

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Frequently Asked Questions

Can I use the EPP-400-12 for a 12V PLC, HMI, or control-panel power bus?

Yes, for 12V constant-voltage control equipment with a combined load up to 20.8A and 249.6W. That makes it suitable for higher-current 12V panel applications where multiple devices share one DC supply.

Is the EPP-400-12 suitable for 12V embedded computers or industrial electronics?

It can be a fit for embedded or industrial electronics that require regulated 12V DC and stay within 20.8A. The available 249.6W capacity gives more headroom than lower-power 12V models in the same series.

Can this model power several 12V automation accessories from one supply?

Yes, provided the accessories are 12V constant-voltage loads and their total demand does not exceed 20.8A or 249.6W. This is useful when a single 12V source is needed for multiple industrial or automation devices.

Is the EPP-400-12 appropriate for 12V test benches or production fixtures?

It can be used where a fixture or bench setup needs a constant 12V output with up to 20.8A available. The 80-264VAC input range also supports facilities with different AC mains conditions.

Can the EPP-400-12 be used in outdoor or temperature-variable environments?

Its specified operating range is -30°C to +70°C, which supports use in equipment exposed to substantial temperature variation. No IP rating is listed in these specs, so weather-exposed outdoor use should not be assumed without additional enclosure protection.

Model	Power	Voltage	Current
Mean Well EPP-400-48 Power Supply 254W 48V	254.4W	48V	5.3A	View
Mean Well EPP-400-36 Power Supply 252W 36V	252W	36V	7A	View
Mean Well EPP-400-27 Power Supply 251W 27V	251.1W	27V	9.3A	View
Mean Well EPP-400-24 Power Supply 252W 24V	252W	24V	10.5A	View
Mean Well EPP-400-18 Power Supply 250W 18V	250.5W	18V	13.9A	View
Mean Well EPP-400-15 Power Supply 250W 15V	250.5W	15V	16.7A	View

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Mean Well EPP-400-12 Power Supply 250W 12V

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Mean Well EPP-400-12 Power Supply 250W 12V

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