400W Single Output with PFC Function
UDP-400
The MEAN WELL UDP-400 Series is a compact 400W AC/DC power supply designed for LED signage, moving signs and LED video wall applications. Its low-profile 200 × 50 × 26mm design and fanless convection cooling support integration into space-constrained systems, while universal 90–264Vac input, active PFC function and efficiency up to 92% provide efficient power conversion.
Available with 4.2V, 4.6V and 5V outputs at up to 80A, the UDP-400 features DIP-switch output voltage adjustment, conformal coating and protection against short circuit, overload, over voltage and over temperature. The optional UDP-400R incorporates a redundant function for two-unit parallel connection, supporting improved system reliability in critical display applications.
See table below for models in range:
Images are for reference only, refer to product data sheet
Models in this series
Output |
Input |
||||
|---|---|---|---|---|---|
| DC Voltage | Power | Rated Current | Input Efficiency | Input Voltage | |
| UDP-400-4.2 | 4.2V DC | 336W | 80A | 90.50% | 90 ~ 264VAC |
| UDP-400R-4.2 (redundant function) | 4.2V DC | 336W | 80A | 90.50% | 90 ~ 264VAC |
| UDP-400-4.6 | 4.6V DC | 368W | 80A | 91.00% | 90 ~ 264VAC |
| UDP-400R-4.6 (redundant function) | 4.6V DC | 368W | 80A | 91.00% | 90 ~ 264VAC |
| UDP-400-5 | 5V DC | 400W | 80A | 92.00% | 90 ~ 264VAC |
| UDP-400R-5 (redundant function) | 5V DC | 400W | 80A | 92.00% | 90 ~ 264VAC |
