• Output Power: 499.5 W (with 23CFM Fan) / 321.3 W (Convection)
• Output Voltage: 18 V DC
• Output Current: 41.6 A (Peak) / 27.8 A (with Fan) / 17.9 A (Convection)
• Input Voltage Range: 80 – 264 V AC / 113 – 370 V DC, 47 – 63 Hz
• Efficiency: up to 93.5%
• Ripple & Noise: ≤ 150 mVp-p
• Inrush Current: 40 A @ 115 VAC / 80 A @ 230 VAC (Cold Start)
• No-load Power Consumption: < 0.5 W
• Operating Temperature: −40 °C to +80 °C
• Cooling: 320W free air convection, 500W with 23CFM forced air
• Protection Functions: Short Circuit, Overload, Over Voltage, Over Temperature
• Overvoltage Category: OVC III
• Isolation Voltage: 4000 V AC between Input and Output
• Dimensions (L x W x H): 127 mm x 76.2 mm x 30.5 mm
• Weight: approx. 420 g
• Safety & EMC Certificates: CB, TUV, UL, CCC, RCM, EAC (62368-1, 60601-1, 60335-1, 61558-1)
• LED Indicator: Power On Indicator
• Manufacturer Warranty: 3 years

Information about the MEAN WELL LOP-500-18

The MEAN WELL LOP-500-18 is a high-density 500W power supply designed in a 5" x 3" compact open frame format, ideal for modern applications requiring a slim 30.5mm profile. This unit achieves a remarkable power density of 27.8W/in³, providing a robust 321.3W under natural air convection and scaling up to 499.5W with forced air cooling. Its universal input range and low no-load power consumption of less than 0.5W make it an energy-efficient solution for industrial automation, telecom devices, and network equipment where space and thermal management are critical factors.

Engineered for maximum safety and versatility, the LOP-500-18 is medical 2xMOPP rated with extremely low leakage current, making it safe for BF-type medical devices. It is built to perform in extreme environments, certified for altitudes up to 5000 meters and featuring a wide operating temperature range from -40 to +80 °C. With compliance for Overvoltage Category III (OVC III) and certifications across industrial, household, and ITE standards, this power supply offers a reliable, cost-effective, and high-performance core for complex electronic systems, all protected by a 3-year manufacturer warranty.