NDC250HS4.5 for 4.5V LED Display Modules
The South Creative NDC250HS4.5 is a switching power supply for LED display cabinets with 4.5V/50A output. This HS model is specified for 200–240VAC rated input. Check the full model code when replacing an existing supply, because the similarly named PS model has different input requirements.
Technical Parameters
| Parameter | Specification |
|---|---|
| Specification revision | V1.0, dated 2025-10-11 |
| Nominal output | 4.5V DC / 50A |
| Output voltage range | 4.365–4.635V DC |
| Rated AC input | 200–240VAC |
| AC input range | 190–264VAC |
| Input frequency | 47–63Hz |
| Input current | ≤4A at 220VAC, full load |
| Standby power | ≤5W at 200–240VAC |
| Ripple and noise | ≤200mV peak-to-peak under specified test conditions |
| Efficiency | Up to 88% |
| Cooling | Natural air cooling |
| Operating temperature | −30 to +70°C; derating required from 50°C |
| Storage temperature | −45 to +85°C |
| Operating humidity | 10–90%, non-condensing |
| Altitude | Up to 3000m |
| Protection | Input undervoltage, output overcurrent and output short circuit |
Replacement and Load Checks
Match the LED module voltage, required current, terminal arrangement and mounting positions. Use the PDF input-voltage and temperature curves to determine the allowable load. The upper operating temperature is not a full-load guarantee.
Contact us with the label of your existing power supply if you need help identifying the correct replacement.
Frequently Asked Questions
Does the NDC250HS4.5 work on 110V AC?
110VAC is outside its specified input range. The V1.0 document gives a 190–264VAC range and a 200–240VAC rated input.
What is its DC output?
The nominal output is 4.5V DC at up to 50A, subject to the input and temperature derating conditions in the specification.
Is NDC250HS4.5 interchangeable with NDC250PS4.5?
Do not assume interchangeability. Their input requirements differ; also compare terminal positions, mounting dimensions and the load requirements of the cabinet.
Can it run at full load at 70°C?
The specification requires derating from 50°C to 70°C. Check its temperature curve and the heat-dissipation conditions before sizing the load.
Where can I download the specification?
The original NDC250HS4.5 specification is linked below and includes electrical parameters, mounting information and derating curves.
Product Photo and Specification PDF
Download Specification:
South Creative NDC250HS4.5 LED Display Power Supply Specification
