At a glance
- Output Voltage
- 12 V
- Rated Output Current
- 41.6 A with 25 CFM airflow, 26.7 A convection
- Rated Output Power
- 499.2 W with 25 CFM airflow, 320.4 W convection
- Input Voltage Range
- 80 to 264 V AC, 113 to 370 V DC
- Efficiency (typ.)
- 91%
- Mounting
- Open frame
MEAN WELL EPP-500-12 PCB Mount Power Supply, 12 V
Price on request
At a glance
- Output Voltage
- 12 V
- Rated Output Current
- 41.6 A with 25 CFM airflow, 26.7 A convection
- Rated Output Power
- 499.2 W with 25 CFM airflow, 320.4 W convection
- Input Voltage Range
- 80 to 264 V AC, 113 to 370 V DC
- Efficiency (typ.)
- 91%
- Mounting
- Open frame
Compact power board that equipment makers build into their own enclosure to give it a regulated DC supply from the mains. 500 W open frame power supply with a 12 V output (41.6 A with 25 CFM airflow), universal 80 to 264 V AC input and 5 V standby, from the MEAN WELL EPP-500 series.
Part of the MEAN WELL EPP-500 series. Compare both models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- 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-500-12 is a PCB mount power supply from the EPP-500 series (500 W Green Open Frame Power Supply). It provides a 12 V DC output.
What it is used for
PCB mount modules are soldered onto a circuit board to give the board its own isolated low voltage supply.
Key Specifications
- Output: 12 V.
Buying considerations
Choose a rated current with headroom above the total load of the connected devices, and check the derating curve in the datasheet if the supply will run hot or at low input voltage. Other output voltages and power ratings in the same series are listed on this page.
Installation considerations
MEAN WELL treats this unit as a component to be installed inside final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring, safety and EMC details are in the official datasheet linked below.
Features

Size and fit
- Mounting
- Open frame
- Dimensions
- 127 x 76.2 x 41 mm
Technical specifications
Key facts
- What is it?
- Open frame power supplyBrand MEAN WELL, model EPP-500-12
- What does it output?
- 12 V, 41.6 A with 25 CFM airflow, 26.7 A convection, 499.2 W with 25 CFM airflow, 320.4 W convection
- What input does it accept?
- 80 to 264 V AC, 113 to 370 V DC
- How does it mount?
- Open frame
- Which documents are available?
- Datasheet, certificate Open documents
RelatedSeriesMEAN WELL EPP-500 series, 2 modelsDocumentsAll MEAN WELL documents
Output
- Output Voltage
- 12 V
- Rated Output Current
- 41.6 A with 25 CFM airflow, 26.7 A convection
- Rated Output Power
- 499.2 W with 25 CFM airflow, 320.4 W convection
- Peak Power
- 550 W for 3 s
- Output Voltage Adjustment Range
- 11.4 to 12.6 V
- Output Voltage Tolerance
- ±3.0%
- Ripple and Noise (max.)
- 200 mVp-p
- Efficiency (typ.)
- 91%
Input
- Input Voltage Range
- 80 to 264 V AC, 113 to 370 V DC
- Power Factor
- Above 0.94 at 230 V AC, above 0.98 at 115 V AC
Protection
- Withstand Voltage
- 3 kV AC input to output
Environment
- Operating Temperature
- -30 to +70 °C (see derating curve)
Physical
- Mounting
- Open frame
- Dimensions
- 127 x 76.2 x 41 mm
Approvals
- Safety Standards
- UL 62368-1, IEC 62368-1, BS EN/EN 62368-1, BS EN/EN 60335-1
Other
- Series
- EPP-500
- Auxiliary Outputs
- 5 V standby 0.6 A (1 A with 25 CFM fan), 12 V 0.5 A fan supply
- Control Signals
- PS-ON input, Power Good / Power Fail output
- Warranty
- Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
| Brand | MEAN WELL |
|---|
Downloads
Documentation
- EPP-500 series datasheetDatasheet · Family · meanwell.comDownload
Certificate and compliance document (1)
- EPP-500 CE declaration of conformityCertificate · Family · meanwell.comDownload
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