Mean well MDR-40-48 40 Watt Power Supply 48V 0.8A output

Why Choose the Mean Well MDR-40-48 40 W DIN Rail Power Supply?

The Mean Well MDR-40-48 is a reliable, industrial-grade 40 W DIN rail power supply engineered to deliver a stable 48 V DC output at 0.83 A for control systems, industrial automation equipment, communication interfaces and low-power embedded electronics. With a wide universal AC/DC input range and robust built-in protections, this unit is designed for dependable performance in compact enclosures and demanding commercial environments. :contentReference[oaicite:0]{index=0}

Featuring efficient fanless convection cooling, an LED power-on indicator and a slim DIN rail form factor, the MDR-40-48 combines Mean Well’s proven reliability with panel-friendly installation — helping maximise usable space and simplify wiring in control cabinets and electrical panels. :contentReference[oaicite:1]{index=1}

Product Code: Mean Well MDR-40-48

Key Benefits

• Stable 48 V output: Regulated 48 V DC at up to 0.83 A for industrial control and automation applications. :contentReference[oaicite:2]{index=2}
• Universal AC/DC input: Accepts 85–264 V AC or 120–370 V DC for flexible use in global installations. :contentReference[oaicite:3]{index=3}
• Fanless convection cooling: Quiet and maintenance-free operation. :contentReference[oaicite:4]{index=4}
• DIN rail mountable: Slim profile for efficient panel layout on TS-35/7.5 or TS-35/15 rails. :contentReference[oaicite:5]{index=5}
• Built-in protections: Short circuit, overload and overvoltage safeguards improve safety and durability. :contentReference[oaicite:6]{index=6}
• LED indicator & DC OK signal: Visual status and remote signalling support diagnostics in panel builds. :contentReference[oaicite:7]{index=7}
• Low idle power consumption: Efficient operation minimises energy waste. :contentReference[oaicite:8]{index=8}

Technical Specifications

• Manufacturer: Mean Well
• Model: MDR-40-48
• Output Voltage: 48 V DC
• Output Current: 0.83 A
• Rated Output Power: ~40 W
• Output Ripple & Noise: ~200 mV p-p (typical) :contentReference[oaicite:9]{index=9}
• Input Voltage Range: 85–264 V AC / 120–370 V DC :contentReference[oaicite:10]{index=10}
• Input Frequency: 47–63 Hz :contentReference[oaicite:11]{index=11}
• Cooling Method: Free air convection (fanless) :contentReference[oaicite:12]{index=12}
• Mounting: DIN rail TS-35/7.5 or TS-35/15 :contentReference[oaicite:13]{index=13}
• Protections: Short circuit, overload, overvoltage :contentReference[oaicite:14]{index=14}
• No-load Power Consumption: <e; 0.75 W :contentReference[oaicite:15]{index=15}
• Isolation Voltage: ~3000 VAC input-to-output :contentReference[oaicite:16]{index=16}
• Dimensions: ~40 × 90 × 100 mm :contentReference[oaicite:17]{index=17}
• Operating Temperature: -20 °C to +70 °C (with derating) :contentReference[oaicite:18]{index=18}
• Approvals: UL508, TUV/EN62368-1, CE, CB, cURus :contentReference[oaicite:19]{index=19}

Compatibility

The Mean Well MDR-40-48 is intended for use in industrial control panels, automation systems and embedded power applications where a compact 48 V DC power supply is required. Always ensure that load requirements for voltage and current are matched before installation. :contentReference[oaicite:20]{index=20}

Applications

• Industrial control panels and automation cabinets
• PLC power distribution and sensor networks
• Communication and telemetry modules
• Embedded controllers, signal conditioning and logic circuits
• Access control, building automation and industrial subsystems
• Maintenance replacement and upgrades

Supplied as a new, unused genuine Mean Well power supply with a three-year factory warranty, ideal for professional electrical and automation installations. :contentReference[oaicite:21]{index=21}

Common Search Terms

MDR-40-48, Mean Well MDR-40-48, 48 V DIN rail power supply, 40 W DIN rail PSU, industrial automation power supply, MDR4048 installation.