MRW-6400P-B2
400 Watt
- Silent by means of controlled fans
- Real redundancy
- 2 power inputs
The mini-redundant 400 W power supply MRW-6400P-B2 was designed as PS/2 substitute as well as for 19“ rack server and storage applications. Full power is supplied without any interrupt even if one module fails. High system availability is given by exchanging modules during operation. Separate AC inputs allow supply from different power sources (UPS).
| Technical data |
|
|---|---|
| Input voltage |
90…264 VAC, active PFC |
| Input frequency |
47…63 Hz |
| Input current |
8 A / (115 VAC) / 4 A (230 VAC) |
| Inrush current |
60 A (115 VAC) / 80 A (230 VAC) |
| Efficiency |
>63 % / 115 VAC |
| Hold up time |
16 ms |
| Power-Good-Signal |
Switch on delay 100…500 ms |
| Protection |
Short circuit protection: At each output |
| Earth leakage current |
<3.5 mA at 250 VAC |
| Safety / EMC |
TÜV / UL / CE |
| Operating temperature |
0…+40 °C |
| Derating |
From 100 V…90 VAC and +40 °C: 4 W / V (90 VAC / 360 W, 100 VAC / 400 W) |
| MTBF |
130 000 h at 25 °C, calculated without fan according to MIL-HDBK-217F |
| Storage temperature |
-20…+80 °C |
| Operating humidity |
20…80 % RH, non-condensing |
| Dimensions (W x D x H) |
150 x 185 x 86 mm ±0.5 mm |
| Weight (net) |
4.2 kg |
| Product-specific data |
|---|
| Alarm functions |
1. TTL signal, 2. Failure LED, 3. Reset for acoustic alarm |
|
Article |
Output |
Output current |
Output current |
Load |
Ripple & |
|---|---|---|---|---|---|
| MRW-6400P-B2 |
+3.3 V |
1 A |
25 A |
±5 % |
±50 mV |
| +5 V |
3 A |
35 A |
±5 % |
±50 mV |
|
| +12 V |
2 A |
28 A |
±6 % |
±120 mV |
|
| -12 V |
0 A |
1.2 A |
±10 % |
±150 mV |
|
| -5 V |
0 A |
0.5 A |
±10 % |
±150 mV |
|
| +5 Vsb |
0.1 A |
2 A |
±5 % |
±60 mV |
Combined output load at +3.3 V, +5 V and +12 V must not exceed 378 W. Combined output current at +3.3 V and +5 V or at +3.3 V and +12 V must not exceed 48 A. Ripple and Noise was measured by a 20 MHz bandwidth limited oscilloscope with connected 220 µF tantalum capacitor and 0.1 µF ceramic capacitor at each output.
As a power component this PSU is for assembly purposes only and must not be operated in unassembled condition. The final assembly has to comply with the valid EMC and safety standards.




