At a glance
- Output Voltage
- 48 V DC
- Rated Output Current
- 6.7 A convection
- Rated Output Power
- 321.6 W convection
- Input Voltage Range
- 80 V to 264 V AC
- Efficiency (typ.)
- 95%
- Dimensions
- 127 x 76.2 x 30.5 mm (L x W x H), 5 x 3 inch
MEAN WELL LOP-500-48 Open Frame Power Supply, 48 V, 10.4 A, 500 W
Price on request
At a glance
- Output Voltage
- 48 V DC
- Rated Output Current
- 6.7 A convection
- Rated Output Power
- 321.6 W convection
- Input Voltage Range
- 80 V to 264 V AC
- Efficiency (typ.)
- 95%
- Dimensions
- 127 x 76.2 x 30.5 mm (L x W x H), 5 x 3 inch
Low profile power board built into slim equipment enclosures to give the circuits a regulated DC supply from the mains. Open frame power supply, 48 V, 10.4 A, 500 W. 5 x 3 inch compact size with 30.5 mm low profile.
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 LOP-500-48 is a open frame power supply from the LOP-400 series (500 W 5″x3″ Low Profile Open Frame Power Supply), rated 48 V, 10.4 A, 500 W.
What it is used for
Open frame board supply that is built into equipment such as PoE switches, security system enclosures and industrial controllers to provide a regulated 48 V rail. MEAN WELL lists applications such as industrial automation machinery and control systems, security systems, network and telecom equipment, poe power sourcing, medical devices.
Key features
- 5 x 3 inch compact size with 30.5 mm low profile.
- 80 V to 264 V AC input with PFC, no load power consumption below 0.5 W.
- 320 W convection, 500 W with 23 CFM fan, 150% peak load for 3 s.
- Suitable for Class I or Class II installations, 2 x MOPP for BF medical applications.
- Operating temperature -40 °C to +80 °C, efficiency up to 95%.
- Protections: short circuit, overload, over voltage, over temperature.
Key Specifications
- Output Voltage: 48 V DC.
- Rated Output Current: 6.7 A convection; 10.4 A with 23 CFM fan; 15.6 A peak for 3 s.
- Rated Output Power: 321.6 W convection; 499.2 W with 23 CFM fan; 748.8 W peak for 3 s.
- Input Voltage Range: 80 V to 264 V AC; 113 V to 370 V DC.
- Efficiency (typ.): 95%.
- Dimensions: 127 x 76.2 x 30.5 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

Size and fit
- Dimensions
- 127 x 76.2 x 30.5 mm (L x W x H), 5 x 3 inch
- Weight
- 0.42 kg
- Mounting
- Open Frame
Technical specifications
Key facts
- What is it?
- Open frame power supplyBrand MEAN WELL, model LOP-500-48
- What does it output?
- 48 V DC, 6.7 A convection, 321.6 W convection
- What input does it accept?
- 80 V to 264 V AC
- How does it mount?
- Open Frame
- Which documents are available?
- Datasheet, certificate Open documents
Output
- Output Voltage
- 48 V DC
- Rated Output Current
- 6.7 A convection; 10.4 A with 23 CFM fan; 15.6 A peak for 3 s
- Rated Output Power
- 321.6 W convection; 499.2 W with 23 CFM fan; 748.8 W peak for 3 s
- Output Voltage Adjustment Range
- 45.6 V to 50.4 V
- Output Voltage Tolerance
- ±1.0%
- Ripple and Noise (max.)
- 250 mVp-p
- Efficiency (typ.)
- 95%
Input
- Input Voltage Range
- 80 V to 264 V AC; 113 V to 370 V DC
- Input Frequency Range
- 47 Hz to 63 Hz
- Power Factor
- above 0.95 at 230 V AC; above 0.98 at 115 V AC (full load)
Protection
- Withstand Voltage
- I/P to O/P: 4 kV AC; I/P to FG: 2 kV AC; O/P to FG: 1.5 kV AC
Environment
- Operating Temperature
- -40 °C to +80 °C (see derating curve)
- Operating Humidity
- 20% to 90% RH non-condensing
- Cooling
- Free air convection for 320 W; 23 CFM forced air for 500 W
Physical
- Dimensions
- 127 x 76.2 x 30.5 mm (L x W x H), 5 x 3 inch
- Weight
- 0.42 kg
- Mounting
- Open Frame
Approvals
- MTBF
- 1695.7K hrs min. Telcordia SR-332 (Bellcore); 230.7K hrs min. MIL-HDBK-217F (25 °C)
Other
- Series
- LOP-400
- Warranty
- Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
| Brand | MEAN WELL |
|---|---|
| Power Output | 321.6 W |
Downloads
Documentation
- LOP-400 series datasheetDatasheet · Family · meanwell.comDownload
Certificate and compliance document (1)
- LOP-400 CE declaration of conformityCertificate · Family · meanwell.comDownload
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
What input voltage does the LOP-500-48 accept?
MEAN WELL lists 80 V to 264 V AC; 113 V to 370 V DC for this model.
Ask about this modelSetup, compatibility, what is in the box
Answers are automated. Do not enter personal or account details.
Looking for an alternative?
We list alternatives only when we have checked they suit the same job. Compare other models in the category, or ask us to suggest one for your site.



