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Mean Well LOP-300-12 300W 4"×2" Low Profile Open Frame Po...
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Description
Description
Key Features
- ✓MEAN WELL Patent Number: ZL 202223277512.1
- ✓4"x2" compact size with low profile (25.4mm)
- ✓80~264Vac input with PFC, No load power consumption <0.5W
- ✓Global certificates in multi-fields (ITE 62368-1, Medical 60601-1, Household 60335-1, Industrial 61558-1/-216
- ✓150% peak load @ 3s
- ✓180W convection, 300W with FAN 10.98CFM forced-cooled
- ✓suitable for Class I or Class II installations
- ✓Overvoltage category III (OVC III)
- ✓-40 ~+80°C wide range operation temperature
- ✓High efficiency up to 94%
- ✓Protections: Short circuit / Overload / Over voltage / Over temperature
- ✓Extremely low leakage current, 2 x MOPP, suitable for BF medical applications
- ✓Operating altitude up to 5000 meters
- ✓Built-in 12V/0.5A for external FAN
- ✓3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesMean Well LOP Series
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Power Rating300 Watt
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Output Voltage12 Volt
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Rated Current15 Ampere
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Standards MetCB,CCC,CE,EAC,TUV,UL
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Operation ModeConstant Voltage
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Warranty3 Year
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Length10.16 cm
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Width5.08 cm
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Height2.54 cm
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Weight0.21 kg
File Downloads
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Frequently Asked Questions
What are the key output specs of the Mean Well LOP-300-12?
The LOP-300-12 is a 300W open frame AC/DC power supply with a 12V output and 15A rated current. It is built in a compact 4 x 2 inch form factor with a 25.4mm low-profile height. The unit also supports up to 150% peak load for 3 seconds.
What kinds of applications is the LOP-300-12 designed for?
This model is intended for space-constrained embedded power applications that need a compact open frame supply with high power density. Its certifications span ITE, medical, household, and industrial standards, which makes it suitable for use across multiple equipment categories. It is especially relevant where a 12V output and low-profile design are important.
Is the Mean Well LOP-300-12 suitable for medical equipment?
Yes, the LOP-300-12 includes IEC60601-1 and ANSI/AAMI ES60601-1 medical safety approvals. It also features extremely low leakage current and 2 x MOPP, making it suitable for BF medical applications. Buyers should still confirm the full system-level compliance requirements for their end product.
How does the LOP-300-12 perform in high-temperature environments?
The power supply is rated for operation from -40°C to +80°C, subject to the manufacturer's derating curve. That wide temperature range makes it a strong option for demanding environments. It also includes over-temperature protection that shuts down output voltage until conditions return to a safe range.
Does the LOP-300-12 support universal AC input?
Yes, this model accepts a wide input range of 80 to 264VAC, and it also supports 113 to 370VDC. It includes active power factor correction, with power factor specified above 0.95 at 230VAC and above 0.98 at 115VAC at full load. This makes it suitable for global equipment designs that need broad input compatibility.
What protections are built into the Mean Well LOP-300-12?
The LOP-300-12 includes short circuit, overload, over-voltage, and over-temperature protection. Its overload protection operates in hiccup mode after 3 seconds and recovers automatically once the fault is removed. Over-voltage protection shuts down the output and requires recovery after the condition clears or after re-powering.
What distinguishes the LOP-300-12 from larger enclosed power supplies?
The main differentiator is its compact 4 x 2 inch open frame format with a low 25.4mm profile, which helps in tight internal layouts. It also delivers high efficiency up to 94% and can reach 300W with forced-air cooling. Compared with bulkier enclosed units, it is better suited to designs where board space and height are limited.
What warranty and physical size does the LOP-300-12 offer?
Mean Well specifies a 3-year warranty for the LOP-300-12. Its dimensions are 101.6 x 50.8 x 25.4 mm, and the listed weight is 0.210 kg. These details make it easier to evaluate for compact equipment designs with strict space and weight constraints.
