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Mean Well LOP-500-18 500W 5"×3" Low Profile Open Frame Power Supply 18V 16.7A

Q: What output does the Mean Well LOP-500-18 provide?

The LOP-500-18 is a 500W open frame AC-DC power supply with a nominal 18V DC output. Its rated output current is 16.7A. This makes it suitable for applications that need a higher-power 18V supply in a compact form factor.

Q: How compact is the LOP-500-18 for space-constrained equipment?

This model uses a 5 x 3 inch footprint and measures 127 x 76.2 x 30.5 mm. The low-profile 30.5 mm height helps when integrating it into equipment with limited vertical clearance. It is designed for applications where both power density and board space matter.

Q: Is the Mean Well LOP-500-18 suitable for industrial or medical equipment?

Yes. The product description lists certifications and standards covering ITE, medical, household, and industrial categories, including IEC 62368-1 and IEC 60601-1. It also features extremely low leakage current and 2 x MOPP, making it suitable for BF medical applications where those requirements apply.

Q: Can the LOP-500-18 operate in harsh temperature environments?

This power supply is rated for operation from -40°C to +80°C, subject to the derating curve. That wide temperature range makes it a strong option for demanding enclosed equipment and industrial environments. Buyers should still confirm the final operating conditions of their specific system.

Q: Does the LOP-500-18 support universal AC input?

Yes. The specified input voltage range is 80 to 264VAC, and it also supports 113 to 370VDC input. This wide input range helps standardize one model across equipment used in different regions and power environments.

Q: What cooling and load capability should buyers know about for the LOP-500-18?

The unit is rated for 320W under convection cooling and up to 500W with 23CFM forced-air cooling. It also supports 150% peak load for 3 seconds. These characteristics matter for equipment with short-duration power surges or tighter thermal conditions.

Q: What protection features are built into the Mean Well LOP-500-18?

The LOP-500-18 includes protection for short circuit, overload, over voltage, and over temperature. The overload mode is specified at 105% to 150% of rated output power with hiccup protection after 3 seconds. These built-in protections help support system reliability in fault conditions.

conventional 320W500W if using fanhigh frequency up to 95%

SKU LOP-500-18

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The Mean Well LOP-500-18 is a 500W low-profile open-frame power supply delivering 18V DC at up to 16.7A. Its slim board-level format is intended for building into equipment where height is the limiting dimension, and it cools by free-air convection.

Accepting 80~264VAC universal input with built-in active PFC, the LOP-500-18 operates from -40°C to 80°C and carries CB, CCC, CE, EAC, TÜV and UL approvals. Protection against overload, over-voltage and over-temperature is included, and it is backed by a 3-year warranty.

Key Features

✓MEAN WELL Patent Number: ZL 202223277512.1
✓5"x3" compact size with low profile (30.5mm)
✓80~264Vac input with PFC, No load power consumption <0.5W
✓Global certificates in multi-fields
✓150% peak load @ 3s
✓320W convection, 500W with FAN 23CFM 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 95%
✓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

Frequently Asked Questions

What output does the Mean Well LOP-500-18 provide?

The LOP-500-18 is a 500W open frame AC-DC power supply with a nominal 18V DC output. Its rated output current is 16.7A. This makes it suitable for applications that need a higher-power 18V supply in a compact form factor.

How compact is the LOP-500-18 for space-constrained equipment?

This model uses a 5 x 3 inch footprint and measures 127 x 76.2 x 30.5 mm. The low-profile 30.5 mm height helps when integrating it into equipment with limited vertical clearance. It is designed for applications where both power density and board space matter.

Is the Mean Well LOP-500-18 suitable for industrial or medical equipment?

Yes. The product description lists certifications and standards covering ITE, medical, household, and industrial categories, including IEC 62368-1 and IEC 60601-1. It also features extremely low leakage current and 2 x MOPP, making it suitable for BF medical applications where those requirements apply.

Can the LOP-500-18 operate in harsh temperature environments?

This power supply is rated for operation from -40°C to +80°C, subject to the derating curve. That wide temperature range makes it a strong option for demanding enclosed equipment and industrial environments. Buyers should still confirm the final operating conditions of their specific system.

Does the LOP-500-18 support universal AC input?

Yes. The specified input voltage range is 80 to 264VAC, and it also supports 113 to 370VDC input. This wide input range helps standardize one model across equipment used in different regions and power environments.

What cooling and load capability should buyers know about for the LOP-500-18?

The unit is rated for 320W under convection cooling and up to 500W with 23CFM forced-air cooling. It also supports 150% peak load for 3 seconds. These characteristics matter for equipment with short-duration power surges or tighter thermal conditions.

What protection features are built into the Mean Well LOP-500-18?

The LOP-500-18 includes protection for short circuit, overload, over voltage, and over temperature. The overload mode is specified at 105% to 150% of rated output power with hiccup protection after 3 seconds. These built-in protections help support system reliability in fault conditions.

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Model	Power	Voltage	Current
Mean Well LOP-500-54 500W 5"×3" Low Profile Open Frame Power Supply 54V 6A	500W	54V	6A	View
Mean Well LOP-500-48 500W 5"×3" Low Profile Open Frame Power Supply 48V 6.7A	500W	48V	6.7A	View
Mean Well LOP-500-36 500W 5"×3" Low Profile Open Frame Power Supply 36V 8.9A	500W	36V	8.9A	View
Mean Well LOP-500-27 500W 5"×3" Low Profile Open Frame Power Supply 27V 11.9A	500W	27V	11.9A	View
Mean Well LOP-500-24 500W 5"×3" Low Profile Open Frame Power Supply 24V 13.4A	500W	24V	13.4A	View
Mean Well LOP-500-15 500W 5"×3" Low Profile Open Frame Power Supply 15V 20A	500W	15V	20A	View
Mean Well LOP-500-12 500W 5"×3" Low Profile Open Frame Power Supply 12V 25A	500W	12V	25A	View

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Key Features

✓MEAN WELL Patent Number: ZL 202223277512.1

✓5"x3" compact size with low profile (30.5mm)

✓80~264Vac input with PFC, No load power consumption <0.5W

✓Global certificates in multi-fields

✓150% peak load @ 3s

✓320W convection, 500W with FAN 23CFM 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 95%

✓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

Mean Well LOP-500-18 500W 5"×3" Low Profile Open Frame Power Supply 18V 16.7A

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Mean Well LOP-500-18 500W 5"×3" Low Profile Open Frame Power Supply 18V 16.7A

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