MEAN WELL EPP-300-12 Open Frame Power Supply, 12 V, 25 A, 300 W

At a glance

Output Voltage: 12 V DC
Rated Output Current: 25 A with 20.5 CFM forced air
Rated Output Power: 200 W (convection), 300 W
Input Voltage Range: 90 V to 264 V AC
Efficiency (typ.): 90%
Dimensions: 127 x 76.2 x 35 mm (L x W x H), 5 x 3 inch

Model EPP-300-12Current model

MEAN WELL EPP-300-12 Open Frame Power Supply, 12 V, 25 A, 300 W

Price on request

At a glance

Output Voltage: 12 V DC
Rated Output Current: 25 A with 20.5 CFM forced air
Rated Output Power: 200 W (convection), 300 W
Input Voltage Range: 90 V to 264 V AC
Efficiency (typ.): 90%
Dimensions: 127 x 76.2 x 35 mm (L x W x H), 5 x 3 inch

Compact power board that equipment makers build into their own enclosure to give it a regulated DC supply from the mains. Open frame power supply, 12 V, 25 A, 300 W. Universal AC input, full range, with active PFC.

Output voltage

12 V DC48 V DC

Part of the MEAN WELL EPP-300 series. Compare both models

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WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery

Overview

What it is

The MEAN WELL EPP-300-12 is a open frame power supply from the EPP-300 series (300 W Single Output with PFC Function), rated 12 V, 25 A, 300 W.

What it is used for

Open frame board supply that is built into equipment enclosures to provide a regulated DC rail from mains, with signals and standby power for system control.

Key features

Universal AC input, full range, with active PFC.
Withstands 300 V AC surge input for 5 seconds.
Protections: short circuit, overload, over voltage, over temperature.
5 x 3 inch compact size; 200 W convection, 300 W with 20.5 CFM forced air.
Built-in 12 V / 0.5 A auxiliary output and 5 V standby.
Power good and fail signal, remote sense, PS-ON control.

Key Specifications

Output Voltage: 12 V DC.
Rated Output Current: 25 A with 20.5 CFM forced air.
Rated Output Power: 200 W (convection); 300 W (20.5 CFM forced air).
Input Voltage Range: 90 V to 264 V AC; 127 V to 370 V DC.
Efficiency (typ.): 90%.
Dimensions: 127 x 76.2 x 35 mm (L x W x H), 5 x 3 inch.

Buying considerations

Size the unit with headroom above the connected load and check the derating information in the datasheet for high ambient temperature or low input voltage. Other models in the same series are listed on this page.

Installation considerations

MEAN WELL treats this unit as a component of the final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring and safety details are in the official datasheet linked below.

Features

MEAN WELL EPP-300-12 Open Frame Power Supply, 12 V, 25 A, 300 W, dimension drawing — Check the datasheet for tolerances.

Size and fit

Dimensions: 127 x 76.2 x 35 mm (L x W x H), 5 x 3 inch
Weight: 0.37 kg
Mounting: Open Frame

Technical specifications

Key facts

What is it?: Open frame power supplyBrand MEAN WELL, model EPP-300-12
What does it output?: 12 V DC, 25 A with 20.5 CFM forced air, 200 W (convection), 300 W
What input does it accept?: 90 V to 264 V AC
How does it mount?: Open Frame
Which documents are available?: Datasheet, certificate Open documents

Output

Output Voltage: 12 V DC
Rated Output Current: 25 A with 20.5 CFM forced air
Output Current Range: 0 to 16.67 A (convection); 0 to 25 A (20.5 CFM forced air)
Rated Output Power: 200 W (convection); 300 W (20.5 CFM forced air)
Ripple and Noise (max.): 120 mVp-p
Output Voltage Adjustment Range: 11.4 V to 12.6 V
Output Voltage Tolerance: ±3.0%
Efficiency (typ.): 90%

Input

Input Voltage Range: 90 V to 264 V AC; 127 V to 370 V DC
Input Frequency Range: 47 Hz to 63 Hz
Power Factor (typ.): above 0.93 at 230 V AC; above 0.98 at 115 V AC (full load)

Protection

Withstand Voltage: I/P to O/P: 3 kV AC; I/P to FG: 2 kV AC; O/P to FG: 0.5 kV AC

Environment

Operating Temperature: -30 °C to +70 °C (see derating curve)
Operating Humidity: 20% to 90% RH non-condensing
Cooling: Free air convection for 200 W; 20.5 CFM forced air for 300 W

Physical

Dimensions: 127 x 76.2 x 35 mm (L x W x H), 5 x 3 inch
Weight: 0.37 kg
Mounting: Open Frame

Approvals

MTBF: 1490.1K hrs min. Telcordia SR-332 (Bellcore); 160.3K hrs min. MIL-HDBK-217F (25 °C)

Other

Auxiliary Outputs: 5 V standby 0.6 A (1 A with fan); 12 V 0.5 A for driving a fan
Signals: PS-ON input, power good / power fail TTL signal, remote sense
Series: EPP-300

Warranty: Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work

Product attributes and shipping details

Brand	MEAN WELL
Power Output	200 W

Downloads

Documentation

EPP-300 series datasheetPublicDatasheet · Family · meanwell.com
Download

Certificate and compliance document (1)

EPP-300 CE declaration of conformityPublicCertificate · Family · meanwell.com
Download

Series documents can differ from your exact model. Report a wrong or missing file

Questions about this product

What input voltage does the EPP-300-12 accept?

MEAN WELL lists 90 V to 264 V AC; 127 V to 370 V DC for this model.

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