Technical Information & Details for MEAN WELL DRDN20-48 Power Supply
- Output Current: 20 A (continuous), Peak 30 A (5 sec.)
- Input Voltage: 48 V DC (range 36 – 60 V DC, 2 channels)
- Voltage Drop (Vin - Vout): 0.25 V max.
- Efficiency: 98% typical
- Standby Power Loss: 1.5 W typical
- Reverse Input Current: 1 mA max.
- Operating Temperature: −40 °C to +80 °C
- Operating Altitude: Up to 5000 meters
- Cooling: Fanless free air convection
- Protections: Overload and short circuit (< 30 A, 5 sec. no damage)
- Overvoltage Category: OVC II
- Withstand Voltage: 500 V AC (I/P-O/P to chassis and relay)
- Vibration Resistance: 10–500 Hz, 5G (IEC61373 compliant mounting)
- Dimensions (H x W x D): 125.2 mm x 32 mm x 102 mm
- Weight: approx. 350 g
- Safety & EMC Certificates: UL 62368-1, IEC 62368-1, EAC TP TC 004, BS EN/EN 55032 Class B
- Status Display & Signals: 2-channel LED OK indicator, 2-channel DC OK relay contacts (30 V DC / 1 A)
- Warranty: 3 years
Information about MEAN WELL DRDN20-48
Designed to safeguard mission-critical 48 V DC power systems, the MEAN WELL DRDN20-48 redundant module uses advanced MOSFET decoupling technology to deliver an outstanding 98% efficiency with minimal heat generation. The robust unit operates dependably across an extreme operating temperature range from −40 °C up to +80 °C and offers IEC61373-certificated vibration resistance up to 5G for demanding installations. Real-time system monitoring is made easy via built-in DC OK relay contacts for each input rail, backed by comprehensive global safety standards and a factory-backed 3-year warranty.