Power supply unit Mean Well RS-100-24, 108 W, AC 115–230 V, metallic, 97×159×38 mm

Mean Well RS-100-24 is a 108 W switch-mode power supply with universal AC input 115–230 V and frequency 47–63 Hz, delivering stable 24 V DC output for industrial and embedded applications. The unit features a compact metallic housing sized 97×159×38 mm, 1% voltage tolerance and a 20 ms rise time. Designed for continuous operation, it offers high reliability with an MTBF of 260,800 hours and built-in protections for safe use in control, automation and instrumentation systems.

Advantages

The metallic enclosure provides mechanical robustness and improved heat dissipation while cooling is achieved by free air convection, eliminating the need for forced ventilation. Built-in protections include short-circuit, overload and over-voltage protection to safeguard connected equipment. The power supply endures surge events up to 300 VAC for 5 seconds and passes 5G vibration and full-load burn-in tests for long-term reliability. An LED power-on indicator and high conversion efficiency simplify installation and operation.

Suitable for

• Industrial control panels and PLC power
• Automation equipment and process controllers
• Instrumentation and measurement systems
• Embedded systems, communication devices and CCTV power

Key specifications

• Output power: 108 W
• Output voltage tolerance: ±1%
• Input voltage range: 115–230 V AC, 47–63 Hz
• Start-up / rise time: 20 ms
• Cooling method: free air convection
• Housing: metallic, dimensions 97×159×38 mm
• Surge immunity: withstands 300 VAC for 5 seconds
• Operating temperature range: up to 70 °C ambient
• MTBF: 260,800 hours
• Indicator: LED for power-on
• Protections: short-circuit, overload, over-voltage
• Reliability features: full-load burn-in test, vibration resistance

How to use

Install the power supply on a stable surface or DIN rail according to the mounting instructions, ensuring adequate ventilation around the metallic housing for convection cooling. Connect the AC input to a properly rated mains supply within 115–230 V AC and observe correct polarity when wiring the DC output to your load. Verify the LED indicator to confirm power-on and measure the output voltage with a multimeter before connecting sensitive devices. Follow safety standards for wiring and grounding to prevent electrical hazards.

Recommendations

For reliable long-term operation, keep the ambient temperature below the maximum rated value, avoid obstructing ventilation paths, and limit exposure to excessive vibration despite the unit's vibration tolerance. Use proper cable sizes and fuses on the input and output circuits, and perform initial testing under load to confirm stable 24 V output before connecting critical equipment.