Mean Well GST120A48-R7B Power Supply - 120W 48V, Best Price

Name: Mean Well GST120A48-R7B Power Supply 120W 48V 2.5A
Brand: Mean Well
SKU: GST120A48-R7B
Price: 52.05 USD
Availability: InStock

Overview

GST120A48-R7B is the 48V output model of this series: rated current 2.5A, typical efficiency 91%. Type R7B: Plug for 12~48V,Power DIN 4Pin with lock type(standard).

GST120A is a highly reliable, 120W desktop style single-output green adaptor series. This product is a classⅠpower unit (with FG), equipped with a standard IEC320-C14 AC inlet and adopting the input range from 85VAC to 264VAC. The entire series supplies different models with output voltages ranging between 12VDC and 48VDC that can satisfy the demands for various types of consumer electronic devices. With the efficiency up to 91% and the extremely low no-load power consumption below 0.15W,GST120A is compliant with USA EISA 2007/DoE, Canada NRCan, Australia and New Zealand MEPS,Korea K-MEPS,Eu ErP and Code of Conduct (CoC) Version 5. The supreme feature allows the adaptor to save the energy when it is either under the operating mode or the standby mode. The entire series utilizes the 94V-0 flame retardant plastic case.GST120A is certified for the international safety regulations.

Features

Global certificates
Universal AC input / Full range
3 pole AC inlet IEC320-C14,ClassⅠpower unit
Built-in active PFC function
No load power consumption<0.15W
Energy efficiency Level VI
Comply with EISA 2007/DoE,NRCan,Korea K-MEPS,AU/NZ MEPS,EU ErP and CoC Version 5
Protections: Short circuit / Overload / Over voltage / Over temperature
Fully enclosed plastic case
-30~+70℃ wide range working temperature
LED indicator for power on
Various DC plug quick adaptor accessory available (Plug kit sold seperate, please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
3 years warranty

Specifications

GST120A48-R7BSpecifications from the official datasheet (2025-03-28 edition)

OUTPUT

SAFETY MODEL NO.: GST120A48
DC VOLTAGE: 48V
RATED CURRENT: 2.5A
CURRENT RANGE: 0 ~ 2.5A
RATED POWER (max.): 120W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION^Note.4: ±1.0%
LOAD REGULATION: ±2.5%
SETUP, RISE TIME^Note.5: 2000ms, 30ms / 230VAC 2500ms, 30ms / 115VAC at full load
HOLD UP TIME (Typ.): 20ms / 230VAC 20ms / 115VAC at full load

INPUT

VOLTAGE RANGE^Note.6: 85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.93 / 230VAC PF>0.97 / 115VAC at full load
EFFICIENCY (Typ.) R7B: 91%
EFFICIENCY (Typ.) P1M: 90.5%
AC CURRENT: 1.4A / 115VAC 0.7A / 230VAC
INRUSH CURRENT (max.): Cold start 35 / 115AC 70A / 230VAC
LEAKAGE CURRENT(max.): 0.75mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 105 ~ 135% rated output voltage Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: 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 non-condensing
TEMP. COEFFICIENT: ±0.03% / ℃ (0~45℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note. 9)

SAFETY STANDARDS^{Note. 7}: UL62368-1, CSA C22.2 No. 62368-1, TUV BS EN/EN62368-1, BSMI CNS15598-1, CCC GB4943.1, PSE J62368-1,AS/NZS 62368.1 , BIS IS13252, KC K60950-1, 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: Parameter Standard Test Level

Conducted emission BS EN/EN55032(CISPR32),FCC PART 15 / CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32 Class B
Radiated emission BS EN/EN55032(CISPR32),FCC PART 15 / CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32 Class B
Harmonic current BS EN/EN61000-3-2,GB9254 Class A
Voltage flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55035

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility BS EN/EN61000-4-3 Level 2, 3V/m
EFT bursts BS EN/EN61000-4-4 Level 2, 1KV
Surge susceptibility BS EN/EN61000-4-5 Level 3, 1KV/Line-Line , 2KV/Line-FG
Conducted susceptibility BS EN/EN61000-4-6 Level 2, 3V
Magnetic field immunity BS EN/EN61000-4-8 Level 2, 3A/m
Voltage dips , interruption BS EN/EN61000-4-11 ＞95% dip 0.5 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted emission	BS EN/EN55032(CISPR32),FCC PART 15 / CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32	Class B
Radiated emission	BS EN/EN55032(CISPR32),FCC PART 15 / CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32	Class B
Harmonic current	BS EN/EN61000-3-2,GB9254	Class A
Voltage flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility	BS EN/EN61000-4-3	Level 2, 3V/m
EFT bursts	BS EN/EN61000-4-4	Level 2, 1KV
Surge susceptibility	BS EN/EN61000-4-5	Level 3, 1KV/Line-Line , 2KV/Line-FG
Conducted susceptibility	BS EN/EN61000-4-6	Level 2, 3V
Magnetic field immunity	BS EN/EN61000-4-8	Level 2, 3A/m
Voltage dips , interruption	BS EN/EN61000-4-11	＞95% dip 0.5 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

OTHERS

MTBF: 2250.5K hrs min. Telcordia SR-332 (Bellcore) ; 368.5K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 167*67*35mm (L*W*H)
PACKING: 0.575Kg; 20pcs/12.5Kg/0.89CUFT

CONNECTOR

PLUG: See page 4~5 ; Other type available by customer requested
CABLE: See page 4~5 ; Other type available by customer requested

MODEL ENCODING

R7B (this model): Plug for 12~48V,Power DIN 4Pin with lock type(standard)
P1M: Plug for 20~48V only,2.5 φ x5.5 φ x11mm,C+,tuning fork type(standard)

Test conditions and notes8

1. All parameters are specified at 230VAC input, rated load, 25℃ 70% RH ambient.
2. Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μF & 47μF capacitor.
3. Tolerance: includes set up tolerance, line regulation, load regulation.
4. Line regulation is measured from low line to high line at rated load.
5. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
6. Derating may be needed under low input voltage. Please check the derating curve for more details.
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).
8. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )

Technical drawings

GST120A48-R7B Derating Curve — Derating Curve

GST120A48-R7B Mechanical Specification — Mechanical Specification

GST120A48-R7B DC output plug — DC output plug

GST120A48-R7B Center Pin Style — Center Pin Style

GST120A48-R7B Pin Assignment — Pin Assignment

Typical applications

Consumer electronic devices
Telecommunication devices
Office facilities
Industrial equipments

Downloads

Datasheet1

GST120A48-R7B datasheetGST120A-SPEC.PDF · 2025-03-28 edition PDF Download

Certificates9

UL Certificate (GST120A)(EN) PDF Download

TUV Certificate (GST120A)(EN) PDF Download

EMC Certificate (GST120A)(EN) PDF Download

NRCan Certificate (GST120A)(EN) PDF Download

BSMI Certificate (GST120A)(EN) PDF Download

PSE Certificate (GST120A)(EN) PDF Download

CCC Certificate (GST120A)(CN) PDF Download

FCC Certificate (GST120A)(EN) PDF Download

ErP Certificate (GST120A)(EN) PDF Download

Test reports1

Test Report (GST120A48)(EN) PDF Download

Catalogues2

Mean Well Adaptor Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the GST120A48-R7B for 48V industrial control or automation equipment?

This model is a constant-voltage 48V power supply rated for 120W and 2.5A. It is generally suited to automation or control equipment that specifically requires a regulated 48V DC source and stays within that 2.5A output limit.

Is the GST120A48-R7B suitable for embedded or IT hardware that runs on 48V DC?

It can fit embedded or IT hardware designed for constant-voltage 48V input, as long as the total load does not exceed 120W or 2.5A. Buyers should match the equipment's required DC voltage to 48V and keep power demand within the supply's rating.

Can this 48V power supply be used for low-power telecom or network equipment?

It may be appropriate for 48V telecom or network devices that use constant-voltage input and draw no more than 2.5A. The key selection points are the 48V output and the 120W maximum capacity.

Is the GST120A48-R7B a good choice for a 48V industrial sensor, controller, or interface load?

For 48V DC industrial loads, this unit fits applications that need constant-voltage output up to 120W. If the controller, interface, or sensor system requires more than 2.5A, this model would be undersized.

Can I use the GST120A48-R7B indoors or in harsh temperature conditions?

Its operating temperature range is -30°C to +70°C, so it is specified for a wide range of indoor operating conditions. No IP rating is listed in the provided specs, so outdoor or washdown suitability is not established by this product data alone.

How does the GST120A48-R7B compare with the other listed model in this series?

The GST120A48-R7B and GST120A48-P1M share the same output rating: 48V, 2.5A, 120W. They differ in the DC output plug (R7B: 4-pin mini-DIN with lock; P1M: 5.5/2.5mm barrel plug) and typical efficiency (91% for R7B, 90.5% for P1M).

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Mean Well GST120A20-P1M Desktop AC Adapters 120W 20V 6A Level VI 2.5x5.5plug	120W	20V	6A	View

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Mean Well GST120A48-R7B Power Supply 120W 48V 2.5A

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC (Note. 9)

OTHERS

CONNECTOR

MODEL ENCODING

Technical drawings

Typical applications

Downloads

Datasheet1

Certificates9

Test reports1

Catalogues2

FAQ

Payment & Security

Other GST120 Models

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Mean Well GST120A48-R7B Power Supply 120W 48V 2.5A

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