MEAN WELL IRM-20-24 20W 24V 0.9A Encapsulated PCB Mount Power Supply, 85-264V AC Input, Black

Delivering 20 watts of continuous power from a compact encapsulated module, the MEAN WELL IRM-20-24 converts 85–264 V AC mains input into a tightly regulated 24 V DC output at 0.9 A. Its 88% efficiency and free-air convection cooling keep thermal stress low, while built-in short-circuit, overload, and over-voltage protection ensure dependable operation in industrial and ITE environments.

Overview

The IRM-20-24 is a PCB-mount AC/DC power supply designed for space-constrained applications that demand reliable, low-noise DC power. Encapsulated in a flame-retardant black housing, it withstands harsh conditions and provides galvanic isolation of 3000 V AC between input and output. Compliance with UL 60950-1, EN 60950-1, and IEC 60950-1 safety standards makes it suitable for a wide range of information technology equipment and industrial controls.

What stands out

• Ultra-compact encapsulated design: only 27.2 mm in height, ideal for dense PCB layouts.
• Wide universal input: 85–264 V AC, 47–63 Hz, works worldwide without switches.
• High efficiency: up to 88%, reducing heat generation and energy costs.
• Robust protection: short circuit, overload, and over voltage safeguards extend product life.
• Low ripple & noise: 150 mVp-p ensures clean power for sensitive circuits.
• Excellent regulation: line ±0.5%, load ±1.0% for stable output under varying conditions.
• Wide operating temperature: -30°C to +70°C, suitable for outdoor and industrial use.

Technical details

• Output power: 20 W
• Output voltage: 24 V DC
• Output current: 0.9 A
• Input voltage: 85–264 V AC
• Input frequency: 47–63 Hz
• Efficiency: 88%
• Isolation voltage: 3000 V AC (input to output)
• Ripple & noise: 150 mVp-p
• Line regulation: ±0.5%
• Load regulation: ±1.0%
• Cooling: free air convection
• Mounting: PCB mount, encapsulated module
• Safety standards: UL 60950-1, EN 60950-1, IEC 60950-1
• Operating temperature: -30°C to +70°C
• Colour: black

Our verdict

The MEAN WELL IRM-20-24 is a workhorse for engineers needing a compact, safe, and efficient 24 V power source. Its encapsulated construction and wide temperature range make it a reliable choice for everything from IoT devices to industrial automation. With MEAN WELL's proven quality and global safety certifications, this module delivers peace of mind in a tiny footprint.