Technical Information & Details for MEAN WELL NPB-450-48 Power Supply
- Output Power: 456.96 W
- Output Voltage: 57.6 V DC (Charge Voltage Range: 42 – 80 V)
- Output Current: 6.8 A
- Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz
- Efficiency: 93%
- Power Factor: PF > 0.98 @ 115 VAC / PF > 0.95 @ 230 VAC
- Inrush Current: Max. 50 A @ 230 VAC (Cold start)
- AC Current: 4.5 A / 115 VAC, 2.2 A / 230 VAC
- Operating Temperature: −30 °C to +70 °C
- Cooling: Thermostatically controlled DC fan
- Protections: Short circuit, Over voltage, Over temperature, Battery reverse polarity, Battery under voltage
- Control & Communication: CANBus 2.0B, NFC interface (NFC models), DIP S.W (2/3-stage selectable)
- Isolation Voltage: 3000 V AC between Input and Output (I/P-O/P)
- Dimensions (H x W x D): 55 mm x 135 mm x 205 mm
- Weight: approx. 1.38 kg
- Safety & EMC Standards: CB, DEKRA, UL62368-1, BS EN/EN62368-1, BS EN/EN60335-1/-2-29, EAC
- Signal Functions: Charger OK & Battery Full (TTL signal), Remote ON/OFF, NTC temperature compensation
- Warranty: 3 Years
Information on MEAN WELL NPB-450-48
Designed for demanding industrial charging setups, the MEAN WELL NPB-450-48 combines a 456.96 W output capacity with an ultra-wide charging voltage span of 42 to 80 V to safely power diverse lithium-ion and lead-acid battery packs. Integrators can easily customize charge curves or monitor real-time operating metrics using the unit's native CANBus 2.0B interface communication alongside contactless NFC configuration tools. The device features robust hardware safeguards including built-in reverse polarity protection and holds dual safety standard approval (UL62368-1 and EN60335-1/-2-29) for maximum operational reliability. With smart fan cooling for active temperature management and a full 3-year manufacturer warranty, it delivers high efficiency across automated machinery, telecommunications, and field power systems.