Product Description
The SD-500L-24 is a high-power industrial DC-DC converter (switching power supply) from Mean Well, designed to deliver stable 24V DC output at high current for demanding industrial and automation applications. It is widely used in control systems, telecom equipment, battery-based systems, and industrial machinery where high efficiency and isolation are required.
This model provides a wide input voltage range and robust protection features, making it suitable for harsh and unstable power environments.
Key Features
• High-power DC-DC converter (industrial grade)
• 24V DC regulated output
• High output capacity: up to 504W (21A)
• Wide input range: 19V to 72V DC
• High efficiency up to ~88%
• Built-in DC fan cooling for thermal stability
• Strong electrical isolation between input and output (2kV)
• Protection against short circuit, overload, overvoltage, and overheating
• Remote ON/OFF control function
• Remote sensing support for voltage accuracy
• Compact enclosed metal housing for industrial use
• High reliability for continuous operation
Specifications
• Product Type: DC-DC Switching Power Supply
• Model: SD-500L-24
• Series: Mean Well SD-500 Series
• Manufacturer: Mean Well
• Output Voltage: 24V DC (adjustable approx. 23–30V in some variants)
• Output Current: 21A
• Output Power: 504W
• Input Voltage Range: 19–72V DC
• Efficiency: ~88%
• Isolation Voltage: 2000V AC (input to output)
• Cooling Method: Built-in DC fan (forced air cooling)
• Output Ripple & Noise: Low ripple (industrial standard)
• Protection Features:
– Short circuit protection
– Overload protection
– Overvoltage protection
– Overtemperature protection
– Input reverse polarity protection (via fuse)
• Operating Temperature: -20°C to +60°C
• Mounting Type: Chassis mount (enclosed type)
• Dimensions: 215 × 115 × 50 mm (approx.)
• Application: Industrial automation, LED systems, telecom equipment, control panels, battery systems, CNC machinery

