Power adapter/inverter Mean Well RSD-30L-24, 30 W, 24 V output, 18–72 V input

Mean Well RSD-30L-24 is a compact DC-DC enclosed converter that delivers a regulated 24 V output at up to 1.25 A from a wide 18–72 V input range. With 30 W output power, EN50155 railway compliance and 4000 Vdc input-to-output isolation, this power adapter/inverter is designed for industrial and automotive environments and fits into tight installations thanks to its compact dimensions (60 × 113 × 25 mm). The unit meets RoHS requirements and is suitable for powering 24 V equipment, control modules and battery-backed systems where reliable DC conversion and galvanic isolation are required.

Advantages

The RSD-30L-24 offers a wide input voltage window that supports various vehicle and industrial power sources, reducing the need for additional converters. Its regulated 24 V output ensures stable operation of connected devices, while 4000 Vdc isolation provides protection against transient events and ground loops. Compliance with EN50155 makes the converter suitable for railway and transport applications, and the small enclosed housing simplifies installation in constrained spaces. The unit's efficiency and built-in protections contribute to reliable, long-term operation in demanding conditions.

Suitable for

• Powering 24 V sensors, actuators and control modules in vehicles and industrial equipment
• Battery-backed systems and UPS input conditioning
• Railway and rolling stock electronics compliant with EN50155
• Compact enclosures and DIN-rail-adjacent installations with limited space

Key specifications

• Input voltage: 18–72 V DC
• Output voltage: 24 V DC
• Maximum output current: 1.25 A
• Output power: 30 W
• Isolation: 4000 V DC input-to-output
• Standards: EN50155 compliant
• Dimensions: 60 × 113 × 25 mm
• Protected enclosed converter suitable for industrial and automotive use

How to use

Connect the RSD-30L-24 input to a suitable DC source within the specified 18–72 V range, observing correct polarity and secure wiring. Mount the enclosed converter in a location with adequate ventilation and mechanical protection, using the available mounting points or recommended fasteners. Connect the 24 V output to the load, ensuring the combined load does not exceed the 1.25 A rating and that wiring gauge and fusing follow local electrical practice. Verify output voltage under load and confirm stable operation before placing into continuous service.

Recommendations

For best results, use appropriate input protection (fuse or circuit breaker) and transient suppression when integrating into vehicle or railway systems. Maintain ambient temperatures within the device's rated range and avoid covering the housing to ensure proper heat dissipation. When used in safety-critical or mass-transit applications, follow relevant installation standards and perform regular inspections of connections and mounting.