MEAN WELL OWA-120E-12 supplies 12 V DC at 9.6 A, with a rated output of 115.2 W. This Class II, fanless adapter uses a European AC plug and a standard XLR four-pin DC connector. Its fully potted power body is rated IP67; the DC connector is outside that rating. Observe the input and temperature derating limits.
Product Datasheet
Download MEAN WELL OWA-120E Datasheet (PDF)
The OWA-120E section is on PDF pages 27, 28, 29, 30, 31. Refer to the complete mechanical drawings and notes when planning installation.
Model and intended use
| Complete model |
OWA-120E-12 |
| Series / regional version |
OWA-120E; European plug version. |
| Output code |
12 identifies the nominal 12 V DC output. |
| Intended applications |
General electronic devices, household equipment, robot lawn mowers and compatible charging-system applications. |
For battery-powered equipment, use a charging system compatible with this output. Battery chemistry, charging stages and charge termination must be provided by the equipment's charging control.
Output performance
| Rated output voltage |
12 V DC |
| Rated output current |
9.6 A |
| Rated output power |
115.2 W |
| Ripple and noise |
150 mVp-p maximum; measured with the test arrangement stated below. |
| Voltage tolerance |
±4.0% |
| Line / load regulation |
±0.5% / ±2.0% |
| Set-up / rise time |
500 / 80 ms at 95% load, 230 VAC. |
| Hold-up time |
16 ms typical at full load, 230 VAC. |
| Typical efficiency |
87.5% at 230 VAC. |
| No-load consumption |
Less than 0.15 W; efficiency Level VI. |
Input and efficiency
| AC / DC input range |
180–264 VAC / 254–370 VDC. |
| AC frequency |
47–63 Hz |
| Power factor |
Active PFC; typical PF >0.96 at 230 VAC, full load. |
| Typical AC current |
0.65 A at 230 VAC. |
| Typical inrush current |
Cold start: 60 A at 230 VAC; pulse width 520 µs measured at 50% of peak current. |
| Leakage current |
<0.25 mA at 240 VAC. |
Protection
| Overload protection |
105–115%; hiccup mode, automatic recovery after the fault is removed. |
| Short-circuit protection |
Hiccup mode; automatic recovery after the fault is removed. |
| Over-voltage protection |
15–17 V; output shuts down. Re-power the supply to recover. |
| Over-temperature protection |
Output shuts down. Re-power the supply to recover. |
Environment and derating
| Operating temperature / cooling |
−40 to +70°C, subject to derating; free-air convection with horizontal mounting. |
| Ambient-temperature derating |
At horizontal mounting, the curve permits 100% load from −40 to 40°C, falling to 40% at 70°C. |
| Input-voltage derating |
At 60 Hz: the static characteristic shows 100% load from 180 to 264 VAC. Apply temperature derating as well. |
| Working humidity |
20–95% RH, non-condensing. |
| Storage |
−40 to +80°C; 10–95% RH. |
| Temperature coefficient |
±0.03%/°C over 0–40°C. |
| Vibration |
10–500 Hz, 5G, 12 minutes per cycle; 72 minutes on each X, Y and Z axis. |
Insulation, protection and compliance
| Electrical construction |
Class II, with no FG connection; fully potted silicone in a plastic enclosure. |
| Body protection |
IP67 applies to the power body, excluding DC connectors. Use a connection assembly suitable for the installation environment. |
| Withstand voltage |
Input to output: 3.75 kVAC. |
| Insulation resistance |
Input to output: 100 MΩ at 500 VDC, 25°C and 70% RH. |
| Catalogue-listed safety |
DEKRA EN61558-1 and EN61558-2-16; EAC TP TC 004. DEKRA EN60335-1 is also listed for this voltage version. |
| EMC emissions |
EN55032 (CISPR32) Class B; EN55014-1; EN61000-3-2 and EN61000-3-3; EAC TP TC 020. |
| EMC immunity |
EN61000-4-2, -3, -4, -5, -6, -8 and -11; EN55014-2; EN55035; light-industry level, including 2 kV line-to-neutral surge; EAC TP TC 020. |
| Energy-efficiency references |
Level VI and EU ErP requirements are listed for this series. |
Dimensions, leads and installation
| Body dimensions |
191 × 63 × 37.5 mm (L × W × H); case PWM-120, general drawing tolerance ±1 mm. |
| Mounting |
Horizontal mounting; two Ø4.5 mm mounting holes. Use the complete drawing for positions and clearances. |
| AC connection |
European CEE 7/7 plug; H05RN-F 1.0 mm² × 2C; 1500±20 mm. |
| DC lead |
H07RN-F 1.5 mm² × 2C; 300±20 mm. |
| Standard DC connector |
XLR 4 pins; NEUTRIK NC4MX or equivalent. |
| DC polarity / pin assignment |
Pins 1 and 2: +V; pins 3 and 4: −V. |
| Catalogue packing reference per unit |
1.15 kg (1150 g), as the per-unit PACKING reference; not a measured net weight or shipment weight. |
Check the connector view and pin numbering in the mechanical drawing before wiring. The marked Tcase point identifies the case-temperature measurement location. Keep the connection and installation conditions within the complete system's requirements.
Optional factory DC connectors
| Lumberg 3611 03 or equivalent |
Pin 1: +V; pin 2: floating; pin 3: −V. |
| XLR 3-pin NEUTRIK NC3MX or equivalent |
Pin 1: +V; pins 2 and 3: −V. |
| CHOGORI 22002411-01 or equivalent |
Pin 1: +V; pin 2: −V. |
| CHOGORI 23002411-01 or equivalent |
Pin 1: +V; pin 2: −V. |
| Unicable UT-D170F4-2P or equivalent |
Pin 1: +V; pin 2: −V. |
| Unicable UT-D224-2P or equivalent |
Pin 1: +V; pin 2: −V. |
| Tuning-fork barrel connector |
2.1 mm inside diameter × 5.5 mm outside diameter × 11 mm length; centre positive, outer sleeve negative. |
These are alternative factory output configurations, not additional connectors supplied with the standard model. For this 12 V, 9.6 A supply, confirm that the selected complete connector and cable assembly supports the intended load voltage and current; connector shape or matching polarity alone does not establish full-load compatibility.
Specify the connector, pin numbering and cable requirements when ordering. The optional barrel connector dimensions do not by themselves establish its current rating. The IP67 power-body rating does not extend to the DC connector.
Reliability and measurement notes
| MTBF reference |
2902.2 thousand hours minimum, Telcordia SR-332 (Bellcore); 294.4 thousand hours minimum, MIL-HDBK-217F at 25°C. |
| Catalogue warranty |
The manufacturer's series datasheet lists a 5-year warranty; its terms and applicability govern. |
| Catalogue version |
2024-10-16 |
Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient.
Ripple and noise are measured at 20 MHz bandwidth using a 12-inch twisted-pair wire terminated with 0.1 µF and 47 µF capacitors in parallel.
Voltage tolerance includes set-up tolerance, line regulation and load regulation. Set-up time is measured at a cold first start; repeated ON/OFF operation may increase set-up time.
Apply all temperature, input-voltage, output and connector limits together. Integration, wiring and the final equipment's compliance must be checked for the intended installation.