MEAN WELL DDR-15L-12 DIN Rail DC-DC Converter 15W 12V 1.25A

Industrial control systems often face unstable DC input voltages, leading to equipment malfunction or failure. The MEAN WELL DDR-15L-12 is a robust DIN rail DC-DC converter that steps down a wide 18-36 VDC input to a stable 12 VDC output, delivering up to 15 W of power. It ensures reliable operation for sensitive electronics in harsh environments.

Who is it for

This converter is ideal for system integrators, panel builders, and maintenance engineers who need a compact, efficient power solution for industrial automation, instrumentation, and control cabinets. It suits applications where a 24 VDC battery or bus voltage must be converted to 12 VDC for sensors, controllers, or communication devices.

Main features

• Wide DC input range: 18 - 36 VDC, compatible with 24 VDC systems
• Stable 12 VDC output with 1.25 A rated current and 15 W power
• High efficiency up to 88% reduces heat generation and energy costs
• DIN rail mountable on TS-35/7.5 or TS-35/15 for quick installation
• Full protection: short circuit, overload, over voltage, and input reverse polarity
• Wide operating temperature range: -40 to +85 °C for demanding environments
• Isolation voltage of 4000 VDC between input and output enhances safety
• Meets UL 62368-1 and TUV EN62368-1 safety standards

Specifications

• Input voltage: 18 - 36 VDC
• Output voltage: 12 VDC
• Rated output current: 1.25 A
• Rated output power: 15 W
• Efficiency: 88% typical
• Isolation voltage: 4000 VDC I/O
• Mounting: DIN rail TS-35/7.5 or TS-35/15
• Operating temperature: -40 to +85 °C
• Protections: short circuit, overload, over voltage, input reverse polarity
• Cooling: free air convection
• Ripple and noise: 100 mVp-p max
• Line regulation: ±0.5% max
• Load regulation: ±1.0% max
• Safety standards: UL 62368-1, TUV EN62368-1
• EMC standards: EN55032 Class A

Tips

Ensure adequate ventilation around the converter to maintain optimal performance. For DIN rail mounting, click the unit onto the rail and verify it is securely latched. Use appropriate wire sizes for input and output connections to minimize voltage drop.