MA300SH5 300 W LED display power supply
The Rong-Electric MA300SH5 supplies +5 V DC for LED display loads. It is listed as a single-output, constant-voltage model with a 300 W rating; the manufacturer V1.0 PDF specifies a 0–60 A current range. Its enclosure measures 190 × 82 × 30 mm.
Technical specifications
| Parameter | Specification |
|---|---|
| Output type | Single output; constant voltage |
| Power / DC output | 300 W; +5 V; 0–60 A in the PDF |
| Output voltage range — PDF | 4.95–5.1 Vdc |
| Rated AC input | 200–240 Vac, 47–63 Hz |
| Power factor — original listing | 0.50 at 230 Vac |
| Leakage current — original listing | 0.30 mA at 230 Vac |
| Ripple and noise | Original listing: <150 mV; PDF: ≤150 mVp-p under stated conditions |
| Efficiency | Original listing: 88%; PDF: ≥86% at 220 Vac, full load, room temperature |
| Operating temperature | Original listing: −30 to +60°C; PDF environmental table: −30 to +50°C, with a heat-spreading plate required at +60°C |
| Cooling | Forced cooling; PDF specifies fan-forced air cooling |
| Dimensions | 190 × 82 × 30 mm |
| Insulation — original listing | Input–output: 3.0 kVac; input–frame ground: 1.5 kVac; output–frame ground: 0.5 kVac |
| Protection | Input undervoltage, overcurrent / output current limiting, and short circuit |
Confirm the operating conditions
The linked V1.0 PDF is dated March 7, 2018. Its efficiency and temperature entries differ from the original page, as shown above. Confirm the supplied revision and follow its heat-spreading and derating requirements before planning full-load operation.
Use the product gallery to compare the housing and visible markings. For a replacement or quotation, provide the complete MA300SH5 model and quantity, and check the AC input, DC output, terminal layout and mounting drawing. Do not substitute a MA200SH5 or MA300SH5S based only on a similar name.
Download specification
Rong-Electric MA300SH5 Power Supply Specification
Frequently asked questions
What output does the MA300SH5 provide?
It is a single-output 5 V constant-voltage supply rated at 300 W. The PDF specifies an output-current range of 0–60 A.
Does this model have a cooling fan?
Yes. The manufacturer identifies fan-forced air cooling. Keep airflow unobstructed and follow the heat-spreading requirements for high-temperature use.
What AC mains input is specified?
The rated input is 200–240 Vac at 47–63 Hz. The available specifications do not establish suitability for 110 V mains.
Why are two efficiency figures shown?
The original listing gives 88%, while the linked V1.0 PDF specifies ≥86% at 220 Vac, full load and room temperature. Confirm the applicable revision rather than assuming either value applies to every unit.
Where can I see product pictures and purchase this model?
Use the product gallery and current purchase options on this page. For a quotation or replacement check, provide the full MA300SH5 model and required quantity.
