MEAN WELL OWA-90E-42 is an OWA-90E series moistureproof AC/DC power adapter with a 42 V DC output rated at 2.15 A and 90.3 W. It provides a regulated DC output with hiccup overload protection. The fanless, silicone-potted Class II housing has an IP67 rating excluding the DC connector. Input-voltage and ambient-temperature derating apply.
Product Datasheet
Download MEAN WELL OWA-90E Datasheet (PDF)
The OWA-90E section is on PDF pages 17, 18, 19, 20, 21. Refer to the complete mechanical drawings and notes when planning installation.
Model-Specific DC Output
| Complete model |
OWA-90E-42 |
| Nominal DC output |
42 V |
| Rated output current |
2.15 A |
| Catalogue-rated output power |
90.3 W |
| Ripple and noise, maximum |
250 mVp-p; see measurement conditions. |
| Voltage tolerance |
±1.0%, including set-up, line and load regulation. |
| Line regulation |
±0.5%. |
| Load regulation |
±0.5%. |
| Set-up / rise time |
500 / 80 ms at 230 VAC; 500 / 80 ms at 115 VAC, measured at 95% load. |
| Hold-up time, typical |
16 ms at full load, at both 115 and 230 VAC. |
Input and Efficiency
| Input voltage / frequency |
90–264 VAC or 127–370 VDC; AC frequency 47–63 Hz. |
| Efficiency, typical |
91% at 230 VAC. |
| AC current, typical |
0.95 A at 115 VAC; 0.5 A at 230 VAC. |
| Cold-start inrush, typical |
60 A at 230 VAC; pulse width 550 µs measured at 50% of peak current. |
| Leakage current |
<0.25 mA at 240 VAC. |
| No-load consumption |
<0.15 W. |
| Active PFC / typical power factor |
PF >0.98 at 115 VAC and >0.96 at 230 VAC, at full load. |
Protection
| Overload |
105–115%; hiccup mode, automatic recovery after fault removal. |
| Short circuit |
Hiccup mode; automatic recovery after fault removal. |
| Overvoltage |
46–54 V; output shuts down. Re-power on to recover. |
| Overtemperature |
Output shuts down. Re-power on to recover. |
Operating Conditions and Derating
| Working ambient |
-40 to +70°C, subject to the horizontal-mounting derating curve. |
| Horizontal thermal derating |
The curve shows 100% load through 50°C, decreasing to 50% at 70°C. The -40 to −25°C portion is marked for 230 VAC input only. |
| Input-voltage derating |
At 60 Hz, the curve shows 80% load at 90 VAC and 100% from 100 to 264 VAC. |
| Cooling / recommended orientation |
Free-air convection without a fan. Install horizontally with the flat base supported, as shown in the installation drawing. |
| Working humidity |
20–95% RH, non-condensing. |
| Storage temperature / humidity |
−40 to +80°C; 10–95% RH. |
| Temperature coefficient |
±0.03%/°C over 0–50°C. |
| Vibration |
10–500 Hz, 5 G, 12 minutes per cycle; 72 minutes along each X, Y and Z axis. |
Safety, EMC and Insulation
| Catalogue safety listings |
EN 61558-1 and EN 61558-2-16; EAC TP TC 004. The EN 60335-1 listing excludes this voltage version. |
| EMC emissions |
EN 55032 (CISPR 32) Class B; EN 55014-1; EN 61000-3-2; EN 61000-3-3; EAC TP TC 020. |
| EMC immunity |
EN 61000-4-2, -3, -4, -5, -6, -8 and -11; EN 55035; EN 55014-2, light-industry level; 2 kV line-to-neutral surge; EAC TP TC 020. |
| Energy-efficiency references |
Level VI; EU ErP is listed. EU CoC version 5 is also listed. |
| Insulation / grounding |
Class II design, without FG; input wiring has two conductors. |
| Ingress protection |
IP67 applies to the potted power-unit body; the DC connector is excluded. |
| Dielectric withstand |
Input to output: 3.75 kVAC. |
| Insulation resistance |
Input to output: 100 MΩ at 500 VDC, 25°C and 70% RH. |
The listed standards and classifications apply to the adapter within the catalogue scope. Suitability and compliance of the assembled equipment depend on its installation and application.
Dimensions, Cables and Connections
| Enclosure dimensions |
171 × 63 × 37.5 mm (L × W × H), case PWM-90P; drawing general tolerance ±1 mm. |
| Enclosure construction |
Silicone-potted plastic case. |
| Mounting holes |
Two Ø4.5 mm holes on diagonally opposed mounting tabs. The drawing places each hole center 5 mm from the adjacent tab edges. |
| AC input plug |
CEE 7/7, with the two-conductor input cable specified below. |
| AC input cable |
H05RN-F 1.0 mm² × 2C, 1500 ±20 mm. |
| Standard DC output connector |
XLR 4-pin, NEUTRIK NC4MX or equivalent: pins 1 and 2 are +V; pins 3 and 4 are −V. |
| Standard output cable |
H05RN-F 1.0 mm² × 2C, 300 ±20 mm. |
| Reference mass per unit |
920 g, from the explicit single-unit PACKING value on catalogue page 18; not a measured net or shipping weight. |
Connector Options and Ordering
| Lumberg 3611 03 or equivalent |
Pin 1: +V; pin 2: floated; pin 3: −V. |
| NEUTRIK NC3MX or equivalent |
XLR 3-pin: pin 1 is +V; pins 2 and 3 are −V. |
| CHOGORI 22002411-01 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 option |
2.1 mm inner diameter × 5.5 mm outer diameter × 11 mm length; center +V, outside −V. |
These are alternative output-connector configurations listed for this series, rather than a set of extra connectors included with the standard unit. Specify the required connector and obtain the applicable ordering details from MEAN WELL.
Measurement and Reliability Notes
| Default measurement conditions |
Unless stated otherwise: 230 VAC input, rated load and 25°C ambient. |
| Ripple/noise measurement |
20 MHz bandwidth, using a 12-inch twisted-pair lead terminated by 0.1 µF and 47 µF capacitors in parallel. |
| Start-up condition |
Set-up time is measured from a cold first start. Repeated power cycling may increase the set-up time. |
| MTBF, minimum calculated reference |
3044.3 K hours under Telcordia SR-332 (Bellcore); 292.9 K hours under MIL-HDBK-217F at 25°C. |
| Catalogue warranty statement |
5 years, as stated in the series catalogue. |
| Catalogue reference |
OWA-90E, revision 2024-10-16, physical pages 17–21 of the linked combined PDF. |
