Power Supply Unit MEAN WELL WDR-480-24

The MEAN WELL WDR-480-24 is a 480 W DIN-rail power supply with a wide AC input range of 180–550 V and passive (free air convection) cooling. It provides 24 V output with 1% voltage tolerance, a 150 ms rise time and is designed for industrial use with UL508 and IEC60950-1 CB approvals. The unit is compact (85 mm × 128.5 mm × 125.2 mm), supports two-phase operation, includes a built-in DC OK relay contact and undergoes 100% full load burn-in testing for reliability.

Advantages

The WDR-480-24 offers high efficiency (up to 93%) that reduces heat dissipation, a wide input voltage range to handle variable AC supplies, and passive cooling to eliminate moving parts and reduce maintenance. Its compact DIN-rail mountable form factor and built-in DC OK relay simplify installation and system monitoring. Compliance with UL508 and IEC60950-1 CB standards ensures suitability for many industrial applications.

Suitable for

• Industrial control cabinets and automation systems
• Powering PLCs, sensors, and instrumentation
• Equipment requiring a stable 24 V power source under varying AC inputs

Key specifications

• Output power: 480 W
• Output voltage: 24 VDC; voltage tolerance: ±1%
• AC input range: 180–550 VAC
• Efficiency: up to 93%
• Cooling: free air convection (passive)
• Rise time: 150 ms
• Mounting: DIN rail TS-35/7.5 or 15
• Protection/approval: UL508, IEC60950-1 CB
• Dimensions (W×D×H): 85 × 128.5 × 125.2 mm
• Additional: built-in DC OK relay contact; 100% full load burn-in test

How to use

Mount the unit on a TS-35/7.5 or 15 DIN rail in a location with adequate ventilation for natural convection cooling. Connect the AC supply within the specified 180–550 VAC range and wire the 24 VDC output to the load following standard wiring and safety practices. Use the DC OK relay contact for remote monitoring of output status. Ensure correct grounding and follow the manufacturer's wiring diagrams and safety instructions when integrating into control panels.

Recommendations

Install the MEAN WELL WDR-480-24 in environments within its approval ratings, avoid obstructing airflow around the unit, and verify AC input and load conditions before commissioning to ensure long-term reliable operation.