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Mean Well

Mean Well GST120A48-P1M AC-DC Single Output Desktop 31A

SKU GST120A48-P1M
$46.85 USD
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Overview

GST120A48-P1M is the 48V output model of this series: rated current 2.5A, typical efficiency 91%. Type P1M: Plug for 20~48V only,2.5 φ x5.5 φ x11mm,C+,tuning fork 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-P1MSpecifications 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 TOLERANCENote.3
±2.5%
LINE REGULATIONNote.4
±1.0%
LOAD REGULATION
±2.5%
SETUP, RISE TIMENote.5
2000ms, 30ms / 230VAC 2500ms, 30ms / 115VAC at full load
HOLD UP TIME (Typ.)
20ms / 230VAC 20ms / 115VAC at full load

INPUT

VOLTAGE RANGENote.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 STANDARDSNote. 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
ParameterStandardTest Level
Conducted emissionBS EN/EN55032(CISPR32),FCC PART 15 / CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32Class B
Radiated emissionBS EN/EN55032(CISPR32),FCC PART 15 / CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32Class B
Harmonic currentBS EN/EN61000-3-2,GB9254Class A
Voltage flickerBS EN/EN61000-3-3
EMC IMMUNITY

BS EN/EN55035

ParameterStandardTest Level
ESDBS EN/EN61000-4-2Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibilityBS EN/EN61000-4-3Level 2, 3V/m
EFT burstsBS EN/EN61000-4-4Level 2, 1KV
Surge susceptibilityBS EN/EN61000-4-5Level 3, 1KV/Line-Line , 2KV/Line-FG
Conducted susceptibilityBS EN/EN61000-4-6Level 2, 3V
Magnetic field immunityBS EN/EN61000-4-8Level 2, 3A/m
Voltage dips , interruptionBS 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
Plug for 12~48V,Power DIN 4Pin with lock type(standard)
P1M (this model)
Plug for 20~48V only,2.5 φ x5.5 φ x11mm,C+,tuning fork type(standard)
Test conditions and notes8
  1. 1. All parameters are specified at 230VAC input, rated load, 25℃ 70% RH ambient.
  2. 2. Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μF & 47μF capacitor.
  3. 3. Tolerance: includes set up tolerance, line regulation, load regulation.
  4. 4. Line regulation is measured from low line to high line at rated load.
  5. 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. 6. Derating may be needed under low input voltage. Please check the derating curve for more details.
  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).
  8. 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-P1M Derating Curve
Derating Curve
GST120A48-P1M Mechanical Specification
Mechanical Specification
GST120A48-P1M DC output plug
DC output plug
GST120A48-P1M Center Pin Style
Center Pin Style
GST120A48-P1M Pin Assignment
Pin Assignment

Typical applications

  • Consumer electronic devices
  • Telecommunication devices
  • Office facilities
  • Industrial equipments

Downloads

FAQ

Can I use the GST120A48-P1M for 48V industrial or embedded equipment?

Yes, this model is a constant voltage power supply with a 48V output. It delivers up to 2.5A and 120W, so the target equipment should be checked against those published values.

Is this power supply suitable for 48V automation devices that need constant voltage input?

The specifications identify it as a constant voltage model with 48V output. If the automation device is designed for 48V constant voltage input, the 120W and 2.5A ratings are the electrical limits to match against.

Can the GST120A48-P1M be used for 48V industrial monitoring or control hardware?

It can be considered for 48V control or monitoring hardware because the output is 48V constant voltage. The connected load should stay within the 2.5A and 120W output ratings shown on the datasheet.

How does the GST120A48-P1M compare with the GST120A48-R7B?

Both the GST120A48-P1M and GST120A48-R7B are rated 120W, 48V and 2.5A. They differ in the DC plug (P1M: 5.5/2.5mm barrel; R7B: 4-pin mini-DIN) and typical efficiency (90.5% for P1M, 91% for R7B).

Can I use the GST120A48-P1M in exposed outdoor environments?

The listing provides an operating temperature range of -30°C to +70°C, so temperature capability is specified. An IP rating is not provided in this data, so these specs alone do not establish suitability for rain, washdown, or direct outdoor exposure.

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Mean Well

Mean Well GST120A48-P1M AC-DC Single Output Desktop 31A

$46.85 USD

GST120A48-P1M is the 48V output model of this series: rated current 2.5A, typical efficiency 91%. Type P1M: Plug for 20~48V only,2.5 φ x5.5 φ x11mm,C+,tuning fork 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

Typical applications

  • Consumer electronic devices
  • Telecommunication devices
  • Office facilities
  • Industrial equipments
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