MEAN WELL NPB-120-48TB Battery Charger, 48 V battery, 2 A

At a glance

Battery Charging Voltage: Boost 57.6 V, float 55.2 V (default)
Charging Current: 2 A, adjustable 50 to 100%
Recommended Battery Capacity: 7 to 25 Ah
Battery Type: Lead acid and Li-ion
Input Voltage Range: 90 to 264 V AC
Output Connector: Terminal block (TB)

Model NPB-120-48TBCurrent model

MEAN WELL NPB-120-48TB Battery Charger, 48 V battery, 2 A

Price on request

At a glance

Battery Charging Voltage: Boost 57.6 V, float 55.2 V (default)
Charging Current: 2 A, adjustable 50 to 100%
Recommended Battery Capacity: 7 to 25 Ah
Battery Type: Lead acid and Li-ion
Input Voltage Range: 90 to 264 V AC
Output Connector: Terminal block (TB)

Charges lead-acid or lithium battery banks for backup power in surveillance and radio systems, and for vehicles such as buses, trucks and camper vans. Battery charger, 48 V battery, 2 A. 90 to 264 V AC universal input with built-in PFC.

Output voltage adjustment range

10.5 to 15.2 V by VR 21 to 30.4 V by VR42 to 60.8 V by VR

Part of the MEAN WELL NPB-120 series. Compare all 3 models

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WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery

Overview

What it is

The MEAN WELL NPB-120-48TB is a battery charger from the NPB-120 series (120 W Compact Size and Wide Output Range Charger), rated 48 V battery, 2 A.

What it is used for

Mains powered charger for 48 V lead acid or lithium battery banks, such as the backup batteries of surveillance or radio systems and vehicle batteries; charges with a 2 or 3 stage curve set on the panel. MEAN WELL lists applications such as radio system backup, electric scooter charging, camping cars, buses, heavy duty trucks and specialty vehicles, surveillance systems.

Key features

90 to 264 V AC universal input with built-in PFC.
Charges lead acid and Li-ion batteries.
Charging voltage and charging current (50 to 100%) adjustable by VR.
2 or 3 stage charging selectable by DIP switch.
Protections: short circuit, over voltage, over temperature, battery reverse polarity.
Front panel LED indicator for charging status.

Key Specifications

Battery Charging Voltage: Boost 57.6 V, float 55.2 V (default).
Charging Current: 2 A (typ.), adjustable 50 to 100%.
Recommended Battery Capacity: 7 to 25 Ah.
Battery Type: Lead acid (flooded, gel, AGM) and Li-ion (lithium iron, lithium manganese).
Input Voltage Range: 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage).
Output Connector: Terminal block (TB).

Buying considerations

Size the unit with headroom above the connected load and check the derating information in the datasheet for high ambient temperature or low input voltage. Other models in the same series are listed on this page.

Installation considerations

MEAN WELL treats this unit as a component of the final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring and safety details are in the official datasheet linked below.

Features

MEAN WELL NPB-120-48TB Battery Charger, 48 V battery, 2 A, dimension drawing — Check the datasheet for tolerances.

Size and fit

Dimensions: 182.7 x 96 x 49 mm (L x W x H)
Weight: 1.3 kg

Technical specifications

Key facts

What is it?: Battery chargerBrand MEAN WELL, model NPB-120-48TB
What does it output?: 2 A, 121.6 W max
What input does it accept?: 90 to 264 V AC
Which documents are available?: Datasheet, certificate Open documents

Output

Battery Charging Voltage: Boost 57.6 V, float 55.2 V (default)
Output Voltage Adjustment Range: 42 to 60.8 V by VR
Charging Current: 2 A (typ.), adjustable 50 to 100%
Rated Output Power: 121.6 W max.
Efficiency (typ.): 90.5%
Rated Output Current: 2 A (charging, typ.)

Input

Input Voltage Range: 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage)
Power Factor: PF >0.98 at 115 V AC; PF >0.92 at 230 V AC (12 V), PF >0.93 at 230 V AC (24 V, 48 V), full load
Battery Type: Lead acid (flooded, gel, AGM) and Li-ion (lithium iron, lithium manganese)
Input Frequency Range: 47 to 63 Hz

Protection

Withstand Voltage: I/P-O/P: 3 kV AC; I/P-FG: 2 kV AC; O/P-FG: 0.5 kV AC

Environment

Cooling: Fanless design
Operating Temperature: -30 to +70 °C (refer to derating curve)
Operating Humidity: 20 to 95% RH non-condensing

Physical

Dimensions: 182.7 x 96 x 49 mm (L x W x H)
Weight: 1.3 kg

Approvals

MTBF: 1895.4K hrs min. Telcordia TR/SR-332 (Bellcore); 225.8K hrs min. MIL-HDBK-217F (25 °C)

Other

Recommended Battery Capacity: 7 to 25 Ah
Charging Curve: 2 or 3 stage selectable by DIP switch
Output Connector: Terminal block (TB)
Series: NPB-120

Warranty: Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work

Product attributes and shipping details

Brand	MEAN WELL
Power Output	121.6 W

Downloads

Documentation

NPB-120 series datasheetPublicDatasheet · Family · meanwell.com
Download

Certificate and compliance document (1)

NPB-120 CE declaration of conformityPublicCertificate · Family · meanwell.com
Download

Series documents can differ from your exact model. Report a wrong or missing file

Questions about this product

What input voltage does the NPB-120-48TB accept?

MEAN WELL lists 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage) for this model.

What battery charging does the NPB-120-48TB provide?

The datasheet gives battery charging voltage Boost 57.6 V, float 55.2 V (default), charging current 2 A (typ.), adjustable 50 to 100%.

Ask about this modelSetup, compatibility, what is in the box

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