Power adapter/inverter MEAN WELL RSD-300E-5 — 300 W, Input 25.2–46.8 V, Output 5 V, RoHS, 97×216×40 mm

MEAN WELL RSD-300E-5 is a DC-DC enclosed converter providing a regulated 5 V DC output with up to 300 W power from a wide DC input range. The unit accepts nominal inputs within 25.2–46.8 V and is housed in a compact metal enclosure measuring 97×216×40 mm. Designed for industrial and telecom environments, the converter includes features for high isolation and compliance with sustainability standards.

Advantages

The RSD-300E-5 delivers a stable 5 V output suitable for high-current applications while maintaining a compact form factor. Its metal housing supports thermal management and mechanical protection in demanding environments. The design includes high-voltage input-to-output isolation and meets RoHS requirements, making it suitable for installations where durability and regulatory conformity are important.

Suitable for

• Industrial control systems and automation
• Telecommunications equipment and embedded systems
• Railway and transport electronics requiring EN50155 compliance
• Applications needing a stable 5 V supply at high current

Key specifications

• Output voltage: regulated 5 V DC
• Maximum output power: 300 W
• Output current capability up to 42 A
• Input voltage range: 25.2–46.8 V DC
• Enclosed metal housing dimensions: 97 × 216 × 40 mm
• Isolation: 4000 V DC input-to-output isolation
• Compliance: RoHS; designed to meet railway standard EN50155

How to use

Install the RSD-300E-5 on a suitable mounting surface using appropriate fasteners and ensure adequate clearance for ventilation. Connect the DC input within the specified 25.2–46.8 V range, observing correct polarity. Connect the 5 V output to the load, ensuring the total load current does not exceed the converter's rated output current. Verify grounding and isolation requirements according to the system design and applicable standards before powering the unit.

Recommendations

To maintain reliable operation, operate the converter within the specified input voltage range and avoid sustained operation at maximum output without adequate cooling. Verify compatibility with system-level protection such as fuses or circuit breakers and follow EN50155 considerations for railway applications where applicable.