MEAN WELL HSN-300 LED Display Power Supply – 5A, 5B, 4.2A & 4.2B
$ 34.00
MEAN WELL HSN-300 LED display supplies are available in 4.2V and 5V versions. A models accept 90–132VAC; B models accept 180–264VAC. Rated power varies by model from 210W to 300W.
The MEAN WELL HSN-300 series provides low-voltage DC power for LED signs and display cabinets in a 210 × 81 × 31mm enclosure. Choose the complete model number: both the output voltage and the A/B input version affect compatibility and rated power.
HSN-300 model comparison
| Parameter | HSN-300-4.2A | HSN-300-4.2B | HSN-300-5A | HSN-300-5B |
|---|---|---|---|---|
| DC output | 4.2V | 4.2V | 5V | 5V |
| Rated current | 50A | 60A | 50A | 60A |
| Rated power | 210W | 252W | 250W | 300W |
| AC input | 90–132VAC | 180–264VAC | 90–132VAC | 180–264VAC |
| Output adjustment | 3.6–4.4V | 3.6–4.4V | 4.5–5.5V | 4.5–5.5V |
| Typical efficiency | 85% | 85% | 86% | 86% |
| Parameter | Specification |
|---|---|
| Dimensions (L × W × H) | 210 × 81 × 31mm |
| Working temperature | −20 to +70°C; observe the derating curve |
| Cooling | Free-air convection, as specified in the linked datasheet |
| Protection | Short circuit, overload, overvoltage and overtemperature |
| Construction | Conformal coating and power-on LED indicator |
Ratings above follow the linked HSN-300 specification. Refer to its static-characteristic and derating curves when operating at low input voltage or elevated temperature. The series name does not mean every version supplies 300W.
Selecting the correct input version
A and B are separate input versions, not a universal-input setting. Confirm the local AC supply and the LED module voltage before selecting a model. For installation, use the mechanical drawing and terminal identification in the HSN-300 PDF; retained listing images are for reference.
Frequently asked questions
What is the difference between HSN-300 A and B models?
A models accept 90–132VAC and are rated at 50A. B models accept 180–264VAC and are rated at 60A. Select the input version that matches the installation.
Are all HSN-300 models rated for 300W?
No. HSN-300-4.2A is rated at 210W, HSN-300-4.2B at 252W, HSN-300-5A at 250W and HSN-300-5B at 300W.
Should I choose a 4.2V or 5V HSN-300?
Use the voltage required by the connected LED modules. The 4.2V versions adjust from 3.6–4.4V; the 5V versions adjust from 4.5–5.5V. Check the module specification before adjusting.
Where are the HSN-300 dimensions and derating curves?
The original PDF download below contains the 210 × 81 × 31mm mechanical outline, model ratings and operating curves.
Product images and specification download
Meanwell HSN-300-5A/5B/4.2A/4.2B LED Display Power Supply Specification
| Weight | N/A |
|---|
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