At a glance
- Output Voltage
- 12 V
- Rated Output Current
- 10 A
- Rated Output Power
- 120 W
- Input Voltage Range
- 88 to 264 V AC, 124 to 370 V DC
- Efficiency (typ.)
- 89%
- Operating Temperature
- -25 to +70 °C
MEAN WELL SDR-120-12 DIN Rail Power Supply, 12 V, 10 A, 120 W
Price on request
At a glance
- Output Voltage
- 12 V
- Rated Output Current
- 10 A
- Rated Output Power
- 120 W
- Input Voltage Range
- 88 to 264 V AC, 124 to 370 V DC
- Efficiency (typ.)
- 89%
- Operating Temperature
- -25 to +70 °C
Clips onto a DIN rail in a control cabinet to power controllers, PLCs, relays and sensors from the mains. 120 W DIN rail power supply with a 12 V DC output rated at 10 A, for 88 to 264 V AC, 124 to 370 V DC input.
Part of the MEAN WELL SDR-120 series. Compare all 3 models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
The MEAN WELL SDR-120-12 is a 120 W DIN rail power supply from the SDR-120 series (120 W Single Output Industrial DIN RAIL with PFC Function). It provides a 12 V DC output with up to 10 A of rated current.
What it is used for
DIN rail supplies clip onto a standard TS-35 rail inside control panels and electrical cabinets, a common way to power access controllers, PLCs, relays and sensors.
Key Specifications
- Input range: 88 to 264 V AC, 124 to 370 V DC.
- Output: 12 V, 10 A rated current, 120 W rated power.
- Output voltage adjustable over 12 to 14 V.
- Typical efficiency: 89%.
- Operating temperature: -25 to +70 °C (see derating curve in datasheet).
- Dimensions: 40 x 125.2 x 113.5 mm (W x H x D).
Buying considerations
Choose a rated current with headroom above the total load of the connected devices, and check the derating curve in the datasheet if the supply will run hot or at low input voltage. Other output voltages and power ratings in the same series are listed on this page.
Installation considerations
MEAN WELL treats this unit as a component to be installed inside final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring, safety and EMC details are in the official datasheet linked below.
Features

Size and fit
- Dimensions
- 40 x 125.2 x 113.5 mm (W x H x D)
- Weight
- 0.67 kg
- Mounting
- DIN Rail
Technical specifications
Key facts
- What is it?
- DIN rail power supplyBrand MEAN WELL, model SDR-120-12
- What does it output?
- 12 V, 10 A, 120 W
- What input does it accept?
- 88 to 264 V AC, 124 to 370 V DC
- How does it mount?
- DIN Rail
- Which documents are available?
- Datasheet, certificate Open documents
RelatedSeriesMEAN WELL SDR-120 series, 3 modelsDocumentsAll MEAN WELL documents
Output
- Output Voltage
- 12 V
- Rated Output Current
- 10 A
- Output Current Range
- 0 to 10 A
- Rated Output Power
- 120 W
- Output Voltage Adjustment Range
- 12 to 14 V
- Output Voltage Tolerance
- ±1.0%
- Ripple and Noise (max.)
- 100 mVp-p
- Line Regulation
- ±0.5%
- Load Regulation
- ±1.0%
- Efficiency (typ.)
- 89%
- Hold Up Time (typ.)
- 20 ms/230 V AC, 20 ms/115 V AC at full load
Input
- Input Voltage Range
- 88 to 264 V AC, 124 to 370 V DC
- Input Frequency Range
- 47 to 63 Hz
- Leakage Current
- <1 mA / 240 V AC
Environment
- Operating Temperature
- -25 to +70 °C (see derating curve in datasheet)
- Operating Humidity
- 20 to 95% RH non-condensing
Physical
- Dimensions
- 40 x 125.2 x 113.5 mm (W x H x D)
- Weight
- 0.67 kg
- Mounting
- DIN Rail
Approvals
- MTBF
- 1764.6K hrs min.
Other
- Series
- SDR-120
- Warranty
- Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
| Brand | MEAN WELL |
|---|---|
| Power Output | 120 W |
Downloads
Documentation
- SDR-120 series datasheetDatasheet · Family · meanwell.comDownload
Certificate and compliance document (1)
- SDR-120 CE declaration of conformityCertificate · Family · meanwell.comDownload
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
What input voltage does the SDR-120-12 accept?
MEAN WELL lists an input range of 88 to 264 V AC, 124 to 370 V DC for the SDR-120 series.
Can the output voltage of the SDR-120-12 be adjusted?
Yes. The datasheet gives an adjustment range of 12 to 14 V.
Ask about this modelSetup, compatibility, what is in the box
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