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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

$74.20 USD ~~$78.26~~

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Description

Features

Universal AC input / Full range

Built-in active PFC function
EMI Class B for Class I & Class A for Class II configuration

High efficiency up to 93%

Withstand 300VAC surge input for 6 seconds
No load power consumption<0.5W by PS ON control
5"x3" miniature size
High 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 air
Built-in 12V/0.5A FAN
With power good and fail signal output
Built-in remote sense function

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

LED indicator for power on
Output 18V available

Operating altitude up to 5000 meters

3 years warranty

General Specification

AC input voltage range	80 ~ 264VAC; 113 ~ 370VDC
AC inrush current	COLD START 40A/115VAC
Leakage current	<0.75mA / 240VAC
Overload protection	105 ~ 135% rated output power
Over-voltage protection	108%~130% rated output voltage
Setup, rise, hold up time	1000ms, 30ms, 16ms
Withstand voltage	I/P-O/P:3KVAC, I/P-FG:2KVAC, O/P-FG:0.5KVAC
Working temperature	-30~+70°C
Vibration	10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
Safety standards	UL62368-1, TUV BS EN/EN62368-1,BS EN/EN60335-1, IEC62368-1, CCC GB4943.1, EAC TP TC 004 approved
EMC standards	UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved
Connection	I/P: 3 Pin JST B3P-VH, O/P: 4 Pin JST B4P-VH
Dimension (LxWxH)	127x76.2x35
Packing	36pcs / 15kg

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
No of Output

1
Dimming Control

None
Standards Met

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

Constant Voltage
Operating Temperature

-30°C~70°C
Warranty

3 Year
Length

5 in
Width

3 in
Height

1.38 in
Weight

0.86 lb

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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?