Over 15 years experience of providing support of MEAN WELL Power Supplies
The GSM40B12 is a 40W Mean Well power converter (input range: 80~264VAC).
Key Features
- ✓ Input voltage range: 80~264VAC
- ✓ 4KVAC reinforced I/O isolation
- ✓ Cooling by free air convection
- ✓ Protections: Short circuit / Overload / Over voltage
- ✓ Safety approvals: ISOLATION LEVEL
- ✓ 3 years warranty
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BrandMean Well
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SeriesGSM Series
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Power Rating40 Watt
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Output Voltage12 Volt
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Rated Current3.34 Ampere
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Input Voltage80V~264V
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No of Output1
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Dimming ControlNone
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Standards MetCB,CE,EAC,FCC,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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Length4.92 in
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Width1.97 in
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Height1.24 in
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Weight0.64 lb
::specification::
Frequently Asked Questions
Can I use the GSM40B12-P1J for 12V PLC accessories or control modules?
Yes, if the device is designed for constant 12V DC input. This supply provides up to 3.34A with a 40W maximum output.
Is this 12V model suitable for industrial sensors, relays, or small automation loads?
It is a constant-voltage 12V power supply, so it fits 12V automation devices that need a regulated DC source. Total demand must stay within 3.34A and 40W.
Will this work for embedded systems or compact 12V control electronics?
It can support embedded or control hardware that specifically requires constant 12V DC input. Output capacity is limited to 40W total and 3.34A maximum current.
Can this power supply run a 12V HMI accessory or industrial monitoring device?
Yes, for 12V devices that use constant-voltage input. The connected equipment must stay at or below 3.34A and 40W.
Is the GSM40B12-P1J appropriate for outdoor or exposed locations?
The operating temperature rating is -30°C to +70°C. No IP rating is listed in the provided specs, so outdoor exposure resistance is not established here.
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Other GSM40 Models
8 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well GSM40A18-P1J Power Supply 40W 18V | 40W | 18V | 2.22A | Indoor | $23.13 | View |
| Mean Well GSM40B48-P1J Power Supply 40W 48V | 40W | 48V | 0.84A | Indoor | $23.13 | View |
| Mean Well GSM40B24-P1J Power Supply 40W 24V | 40W | 24V | 1.67A | Indoor | $23.13 | View |
| Mean Well GSM40B18-P1J Power Supply 40W 18V | 40W | 18V | 2.22A | Indoor | $23.13 | View |
| Mean Well GSM40B15-P1J Power Supply 40W 15V | 40W | 15V | 2.67A | Indoor | $23.13 | View |
| Mean Well GSM40B09-P1J Power Supply 40W 9V | 40W | 9V | 4.45A | Indoor | $23.13 | View |
| Mean Well GSM40B07-P1J Power Supply 40W 7.5V | 40W | 7.5V | 5.34A | Indoor | $23.13 | View |
| Mean Well GSM40B05-P1J Power Supply 25W 5V | 25W | 5V | 5A | Indoor | $21.92 | View |




