• Output Power: 120 W
• Output Voltage (Default): 57.6V (Boost) / 55.2V (Float)
• Voltage Adjustable Range (VR): 42V – 60.8V DC
• Output Current: 2 A (adjustable 1 – 2 A)
• Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz
• Efficiency: 91.5%
• Power Factor (PFC): PF > 0.98 / 115 VAC, PF > 0.92 / 230 VAC
• No Load Power Consumption: < 0.15 W (with AC switch off)
• Operating Temperature: −30°C to +70°C
• Cooling: Fanless design via free air convection
• Protection Functions: Short circuit, Over voltage, Over temperature, Battery reverse polarity
• Charger Type: Selectable 2 or 3 stage via DIP S.W
• Output Connector: Terminal Block (TB Type)
• Dimensions (L x W x H): 182.7 mm x 96 mm x 49 mm
• Weight: 1.3 kg
• Safety & EMC Certificates: CB, DEKRA, UL, EAC, CE, UKCA (EN62368-1/EN60335-1/2-29)
• LED Indicator: Status LED for charging (Red: Charging / Green: Full)
• Manufacturer Warranty: 3 Years

Information about the MEAN WELL NPB-120-48TB

The MEAN WELL NPB-120-48TB is a professional-grade 48V battery charger engineered for universal support of lead-acid and lithium-ion battery chemistries. Featuring a durable terminal block interface, this charger ensures a secure electrical connection for permanent installations such as network backup solutions, telecom infrastructures, and industrial automation. A core strength of this unit is its fanless mechanical design, providing 100% silent operation and superior reliability by eliminating moving parts and dust intake. The charger offers exceptional flexibility through its user-selectable 2-stage or 3-stage charging curves, which can be instantly toggled via a physical DIP switch to provide optimized cycles for LiFePO4 or traditional AGM batteries. Users can further benefit from on-board potentiometers to fine-tune both voltage and current (50-100% range), ensuring the output matches specific battery manufacturer data sheets perfectly. With safety at the forefront, the NPB-120-48TB includes built-in battery reverse polarity protection and is certified to both industrial and household safety standards, offering a robust and long-lasting energy management solution.