Technical Information & Details for the MEAN WELL MDR-40-24 Power Supply
- Output Power: 40 W
- Output Voltage: 24 V DC
- Output Current: 1.7 A
- Input Voltage Range: 85 – 264 V AC / 120 – 370 V DC, 47 – 63 Hz
- Efficiency: 88%
- Ripple & Noise: ≤ 150 mVp-p
- Inrush Current: Cold Start 30 A @ 115 VAC / 60 A @ 230 VAC
- No-load Power Consumption: < 0.75 W
- Operating Temperature: −20 °C to +70 °C
- Cooling: Free air convection (fanless)
- Protections: Short circuit, Overload (constant current limiting), Over voltage
- Special Features: DC OK relay contact, LED power indicator, Adjustable output voltage
- Isolation Voltage: 3000 V AC (I/P to O/P)
- Dimensions (W x H x D): 40 mm x 90 mm x 100 mm
- Weight: 0.3 kg
- Safety & EMC Certificates: UL508, UL62368-1, TUV, Class I Div 2 (HazLoc), CE, EAC
- Manufacturer Warranty: 3 Years
Information about the MEAN WELL MDR-40-24
The MEAN WELL MDR-40-24 is a premier 24V industrial power supply engineered for precision and durability in tight control environments. A standout characteristic of this unit is its floating DC OK relay contact, which provides immediate feedback on the health of the output voltage to external monitoring systems or PLCs. Operating with a high energy efficiency of 88%, it minimizes thermal stress and energy waste, further complemented by a no-load power consumption of less than 0.75W. This model is exceptionally well-suited for critical applications, carrying the Class I, Division 2 safety rating for hazardous locations where combustible gases or vapors may be present. Its protection mechanism utilizes constant current limiting, ensuring the power supply can handle temporary overloads and recover automatically without system resets. The ultra-slim 40mm width allows for high-density rail mounting, while the full range universal input ensures global compatibility, making it an ideal choice for everything from simple sensor arrays to complex industrial machinery.