Over 15 years experience of providing support of MEAN WELL Power Supplies
The GST120A12 is a 120W Mean Well power converter (input range: 85~264VAC).
Key Features
- ✓ Input voltage range: 85~264VAC
- ✓ 3KVAC reinforced I/O isolation
- ✓ Protections: Overload / Over voltage / Over temperature
- ✓ 3 years warranty
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BrandMean Well
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SeriesGST Series
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Power Rating102 Watt
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Output Voltage12 Volt
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Rated Current8.5 Ampere
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Input Voltage85V~264V
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No of Output1
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Dimming ControlNone
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Standards MetBSI,BSMI,CB,CCC,CE,EAC,FCC,KC,PSE,RCM,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-30°C~70°C
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Warranty3 Year
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Length6.57 in
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Width2.64 in
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Height1.38 in
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Weight1.37 lb
::specification::
Frequently Asked Questions
Can the GST120A12-R7B power 12V industrial control panels or automation devices?
Yes, this model provides constant 12V DC output with up to 8.5A and 102W available. It is suitable for 12V industrial control or automation devices that require regulated 12V power and stay within those output limits.
Is this power supply a fit for 12V embedded computers or industrial IT hardware?
It can be a fit for embedded computers, thin clients, or industrial IT hardware designed for constant 12V DC input. The main compatibility check is keeping the total load at or below 8.5A and 102W.
Can I use the GST120A12-R7B for 12V cameras, displays, or monitoring systems?
Yes, it can support 12V monitoring systems, displays, or camera-related equipment when those devices are specified for constant 12V DC. The connected load must remain within the rated 8.5A output current and 102W maximum power.
Would this work for 12V LED signage or low-voltage control equipment?
It can work for 12V low-voltage equipment that requires constant-voltage power, including control gear or signage hardware designed for 12V DC. Sizing should be checked against the 8.5A and 102W limits in the specs.
Can the GST120A12-R7B be used in cold or hot operating areas?
The specified operating temperature range is -30°C to +70°C, so it is rated across a broad ambient range. No IP rating is provided in the listed specs, so these details do not confirm outdoor, washdown, or wet-location use.
How do I verify this 12V model is the right size for my system?
Choose it when your system requires constant 12V DC and the total demand does not exceed 8.5A or 102W. If your equipment needs a different voltage or a higher load, a different power supply is needed.
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Other GST120 Models
6 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well GST120A24-P1M AC-DC Single Output Desktop | 120W | 24V | 5A | Indoor | $40.23 | View |
| Mean Well GST120A48-P1M AC-DC Single Output Desktop | 120W | 24V | 31A | Indoor | $46.85 | View |
| Mean Well GST120A24-R7B Power Supply 120W 24V | 120W | 24V | 5A | Indoor | $46.85 | View |
| Mean Well GST120A48-R7B Power Supply 120W 48V | 120W | 48V | 2.5A | Indoor | $46.85 | View |
| Mean Well GST120A15-R7BPower Supply 105W 15V | 105W | 15V | 7A | Indoor | $46.85 | View |
| Mean Well GST120A20-P1M Desktop AC Adapters 120W 20V 6A Level VI 2.5x5.5plug | 120W | 20V | 6A | Indoor | $46.85 | View |




