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Mean Well

Mean Well GC120A48-R7B Portable Chargers 120.2W 54.4V 2.21A - Green Adaptor

SKU GC120A48-R7B
$45.65 USD
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Overview

GC120A48-R7B is the model of this series: rated power 120.2W, typical efficiency 91%.

Features

  • Charger for lead-acid batteries (flooded,Gel and AGM) and Li-ion batteries (lithium iron and lithium manganese) (Note.1)
  • 2 stage charging characteristic
  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.97
  • No load power consumption<0.5W
  • 3 pole AC inlet IEC320-C14
  • Class I power ( with earth pin)
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Fully enclosed plastic case
  • 2 color LED indicator for charging status
  • Approvals: UL / PSE / TUV / EAC / CB / FCC / CE / UKCA
  • 2 years warranty

Specifications

GC120A48-R7BSpecifications from the official datasheet (2025-03-28 edition)

OUTPUT

SAFETY MODEL NO.
GC120A48
DC VOLTAGE (Typ.)
54.4V
RECOMMENDED BATTERY CAPACITYNote.3
10 ~ 35Ah
CONTINUOS OUTPUT CURRENT (Typ.)
2.21A
RATED POWER
120.2W
LED INDICATOR
Charging(CC) : RED Floating charging(CV) : GREEN

INPUT

VOLTAGE RANGENote.4
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF>0.97 / 230VAC PF>0.99 / 115VAC at full load
EFFICIENCY (Typ.)
91%
AC CURRENT
1.4A / 115VAC 0.7A / 230VAC
INRUSH CURRENT (max.)
70A / 230VAC
LEAKAGE CURRENT(max.)
0.75mA / 240VAC

PROTECTION

OVERLOADNote.5
90 ~ 110% rated output power Protection type : Constant current limiting recovers automatically after fault condition is removed
SHORT CIRCUIT
Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
59 ~ 69V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
100℃ ± 10℃ (RTH2) detect on inside ambient temperature Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-30 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03% / ℃ (0~50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDSNote. 6
UL1012 (FOR GC120AXX-AD1 Only), TUV BS EN/EN62368-1, PSE J62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P: 3KVAC
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 class B, FCC PART 15 / CISPR22 class B, CAN ICES-3(B)/NMB-3(B), BS EN/EN61000-3-2,3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
2707.9K hrs min. Telcordia SR-332 (Bellcore) ; 400.5K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
167*67*35mm (L*W*H)
PACKING
0.62Kg; 20pcs/13.4Kg/0.95CUFT

CONNECTOR

PLUG
See page 2 ; Other type available by customer requested
CABLE
See page 2 ; Other type available by customer requested
Test conditions and notes7
  1. 1. Modification for charger specification may be required for different battery specification. Please contact battery vendor and MEAN WELL for details.
  2. 2. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  3. 3. This is MeanWell's suggested range, please consult your battery manufacturer for their suggestions about maximum charging current limitation.
  4. 4. Derating may be needed under low input voltage. Please check the derating curve for more details.
  5. 5. Constant current operation region is within 50~100% rated output voltage.
  6. 6. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives.(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  7. 7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

GC120A48-R7B Mechanical Specification
Mechanical Specification
GC120A48-R7B Plug Assignment
Plug Assignment
GC120A48-R7B Derating Curve
Derating Curve

Downloads

FAQ

What battery charging output does the GC120A48-R7B provide?

The Mean Well GC120A48-R7B is rated for 54.4V output at 2.21A, with a total power rating of 120.2W. It is the 48V battery charger model in the GC120 series and uses a 2-stage charging characteristic.

What kind of applications is the GC120A48-R7B typically suited for?

This model is typically considered when a buyer needs a 54.4V charger with moderate current output and a compact 167 x 67 x 35 mm form factor. For B2B buyers, it can fit use cases where a 48V-class battery charger (10 to 35Ah recommended) is needed and a 4-pin Power DIN DC plug is preferred for the product-side interface.

What input power range does this charger support?

The GC120A48-R7B accepts a universal AC input range of 85 to 264VAC and also supports 120 to 370VDC input. That wide input range makes it suitable for buyers sourcing one charger model for different mains power environments.

What protection features are built into the GC120A48-R7B?

This charger includes protection for short circuit, overload, over voltage, and over temperature conditions. Its overload protection operates at 90 to 110% of rated output power with constant current limiting and auto-recovery, while over-voltage protection (59 to 69V) shuts down the output and requires re-powering to recover.

Is the GC120A48-R7B suitable for demanding indoor industrial or commercial environments?

The unit has a working temperature range of -30 to +70°C, subject to the derating curve, and a working humidity of 20 to 90% RH non-condensing. It also has EMC compliance including EN55032 Class B and FCC Part 15 Class B, and EN55035 light industry level immunity.

What output connector style does the GC120A48-R7B use?

This version uses a standard 4-pin Power DIN DC plug (KYCON KPP-4S or equivalent), identified by the R7B suffix. That matters for compatibility because buyers should match the plug style and pin assignment to the equipment or battery system they already use.

How does the GC120A48-R7B differ from a general-purpose power adaptor?

The GC120A48-R7B is a battery charger rather than a basic fixed-output adaptor, with a 2-stage charging characteristic and a charging-status LED indicator. It also includes battery-charger-oriented protections and a 4-pin Power DIN output plug, which can be more application-specific than standard commodity adaptors.

What warranty and efficiency can buyers expect from this model?

The datasheet does not state a warranty period for the GC120A48-R7B, so confirm warranty terms before ordering. The unit has a typical efficiency of 91% and a power factor above 0.97 at 230VAC, which can help buyers evaluating operating efficiency.

Payment & Security

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Mean Well GC120A48-R7B Portable Chargers 120.2W 54.4V 2.21A - Green Adaptor
Mean Well

Mean Well GC120A48-R7B Portable Chargers 120.2W 54.4V 2.21A - Green Adaptor

$45.65 USD

GC120A48-R7B is the model of this series: rated power 120.2W, typical efficiency 91%.

Features

  • Charger for lead-acid batteries (flooded,Gel and AGM) and Li-ion batteries (lithium iron and lithium manganese) (Note.1)
  • 2 stage charging characteristic
  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.97
  • No load power consumption<0.5W
  • 3 pole AC inlet IEC320-C14
  • Class I power ( with earth pin)
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Fully enclosed plastic case
  • 2 color LED indicator for charging status
  • Approvals: UL / PSE / TUV / EAC / CB / FCC / CE / UKCA
  • 2 years warranty
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