MEAN WELL OWA-200U-42 is a moistureproof AC/DC adapter with 42 VDC, 4.75 A and 199 W rated output. Match the connected equipment to its fixed output voltage and rated current. This U version uses a NEMA 1-15P AC plug and 100–264 VAC input. The IP67 rating is for the power body; connector protection must suit the installation.
Download MEAN WELL OWA-200U Datasheet (PDF)Download MEAN WELL Installation Manual (PDF)Download MEAN WELL DC Plug Converter Guide (PDF)Catalog location: PDF pages 32–36; specification table on page 33, curves on page 34, and connection drawing on page 35.
Model and output
| Parameter |
Specification |
| Model and code |
OWA-200U-42 — OWA-200U; U identifies the US AC plug version; 42 identifies the nominal DC output voltage. |
| Output mode |
Single-output constant-voltage external AC/DC adapter. |
| Rated output voltage |
42 VDC |
| Rated output current |
4.75 A |
| Rated output power |
199 W (catalog rating) |
| Maximum ripple and noise |
250 mVp-p; measured at 20 MHz bandwidth with a 12-inch twisted pair and parallel 0.1 μF / 47 μF capacitors. |
| Voltage tolerance |
±3%; includes initial setup tolerance, line regulation and load regulation. |
| Line and load regulation |
Line: ±0.5%; load: ±3%. |
Input and electrical performance
| Parameter |
Specification |
| Input voltage |
100–264 VAC or 142–370 VDC. For DC operation, verify the manufacturer’s connection instructions and appropriate input connection for the delivered model. |
| Input frequency |
47–63 Hz |
| Typical efficiency |
91.5% at 115 VAC; 94% at 230 VAC. |
| Typical power factor |
Built-in active PFC; >0.97 at 115 VAC; >0.96 at 230 VAC at full load. |
| Typical AC input current |
2.2 A at 115 VAC; 1.1 A at 230 VAC |
| Setup and rise time |
Setup 500 ms / rise 80 ms at 115 or 230 VAC. Setup time is measured at cold first start; turning the power supply ON/OFF may increase setup time. |
| Typical hold-up time |
10 ms at full load, 115 or 230 VAC. |
| Typical inrush current |
Cold start: 90 A at 115 VAC (300 μs width); 180 A at 230 VAC (450 μs width) at 50% peak current. |
| Leakage current |
<0.125 mA at 120 VAC; <0.25 mA at 240 VAC. |
| No-load consumption |
<0.15 W |
Protection and operating conditions
| Parameter |
Specification |
| Overcurrent protection |
105–150%; hiccup mode, automatically recovers after the fault is removed. |
| Short-circuit protection |
Hiccup mode, automatically recovers after the fault is removed. |
| Overvoltage protection |
46–57 V; output shuts down. Remove the fault and re-power to recover. |
| Overtemperature protection |
Output shuts down. Remove the overtemperature condition and re-power to recover. |
| Ambient temperature |
−40 to +70°C, subject to derating. Operation from −40 to −25°C is specified only at 230 VAC. |
| Cooling and load derating |
Fanless free-air convection with the recommended horizontal mounting. At 110 VAC: 100% load through +40°C, decreasing to 40% at +70°C. At 230 VAC: 100% load through +45°C, decreasing to 50% at +70°C. Apply thermal and input/load limits together; the upper ambient limit is not a full-load rating. |
| Input/load curve |
At 60 Hz: 80% load at 100 VAC, rising to 100% at 110 VAC and remaining at 100% through 264 VAC. |
| Humidity and storage |
Working: 20–95% RH, non-condensing. Storage: −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 each along X, Y and Z axes. |
Safety and compliance
| Parameter |
Specification |
| Catalog safety and construction |
Class II power unit, no FG connection; fully silicone-potted plastic enclosure with 94V-0 flame-retardant housing. IP67 applies to the power body, not an unrestricted waterproof rating for plugs or the complete installation. UL62368-1; UL1012 is a design reference. Suitable for dry and damp locations as catalogued. |
| Energy-efficiency declarations |
Energy efficiency Level VI; EU ErP requirements are stated in the catalog. CoC Version 5 is also stated for this model. |
| EMC emissions |
FCC Part 15. |
| Insulation |
Input-to-output withstand voltage: 4.2 kVAC. Input-to-output isolation resistance: 100 MΩ at 500 VDC / 25°C / 70% RH. |
Connections and installation
| Parameter |
Specification |
| Dimensions and mounting |
195 × 68 × 39.5 mm (L × W × H); case PWM-200, drawing tolerance ±1 mm; two Ø4.5 mm mounting holes. Follow the recommended horizontal mounting and dimensioned drawing. Retain the supplied cable/ferrite arrangement where fitted. |
| AC connection |
NEMA 1-15P male; SVT 18 AWG × 2 conductors, 1500 ±20 mm. |
| DC connection |
Standard R7B, KYCON KPPX-4P or equivalent: pins 1 and 4 positive; pins 2 and 3 negative; connector rating 15 A maximum. UL2464 16 AWG × 4 conductors, 1000 ±20 mm. Use the numbered connector drawing to identify pins. |
| Optional connectors |
C6P MOLEX 39-01-2060 (4.2 mm) or equivalent, 15 A maximum: pins 1/2/3 positive, pins 4/5/6 negative; FG not connected to the output connector; M19 LLT-M19-20002F307 or equivalent, 15 A maximum: pin 1 positive, pin 2 negative; MIC4 NEUTRIK XLR NC4FX or equivalent, 15 A maximum: pins 1/2 positive, pins 3/4 negative; XLR4P NEUTRIK NC4MX or equivalent, 15 A maximum: pins 1/2 positive, pins 3/4 negative. These are optional connector configurations, not the standard connector or included separate accessories. Confirm the factory configuration with MEAN WELL before ordering; observe both the supply rating and connector limit. |
| Catalog packing reference |
1.32 kg per unit (1320 g); this is the catalog PACKING reference, not a measured net weight or a shipping-parcel weight. |
| MTBF |
2680.8 / 268.5 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. |
Disconnect AC power before connecting the DC plug, installing, cleaning or servicing, and prevent accidental reconnection. Check voltage, polarity, connector size and current rating before use; never force an incompatible plug. Keep connections secure and protect cables from damage. Provide ventilation and leave 10–15 cm clearance when an adjacent device is a heat source; do not stack objects on the unit. Follow the catalog’s horizontal mounting and load curves; nonstandard mounting or high ambient temperature may require additional derating. Keep plugs and connections appropriately protected; do not immerse the unit in water. Do not open the enclosure. Damaged external cables must be replaced by the manufacturer, a service agent or similarly qualified personnel. Verify insulation, interconnections and EMC in the final equipment.
For battery-charging applications, the catalog recommends operation with a BMS controller. Confirm the battery and charging-control requirements for the complete system before use.
Separate plug converters
The DC plug guide lists separately sold DC PLUG-R7BF-P1J (2.1 mm ID × 5.5 mm OD × 11 mm barrel) and DC PLUG-R7BF-P1M (2.5 mm ID × 5.5 mm OD × 11 mm barrel) for the standard OWA-90U–200U R7B interface. Verify mating, polarity and current compatibility for the actual output before use; a converter must not be assumed to carry the full rated current of every model.
Specification notes
Unless otherwise specified, catalog parameters are measured at 230 VAC input, rated load and 25°C ambient. Typical efficiency, power factor and time values depend on operating conditions; protection thresholds do not authorize continuous overload. The manufacturer catalog states a 5-year warranty; applicable manufacturer terms govern.
