The NRA301 is a 4.5 kW three-phase rectifier for naval electronics and shipboard power-distribution architectures. It accepts 120/208 VAC, 60 Hz input and provides three isolated 28 VDC outputs plus a low-power 5 VDC rail, allowing several DC loads to be served from one assembly.
The primary 28 VDC channel delivers 2.7 kW at 96.42 A. Two additional 28 VDC channels each provide 900 W at 32 A, and the 5 VDC output supplies 10 W at 2 A. Typical conversion efficiency is 80 percent, and a 0.99 power factor reduces reactive loading on the upstream AC system.
Internal 1PH60 power modules create a redundant conversion architecture within the rectifier. The NRA301 is designed for applicable requirements of MIL-STD-1399B, MIL-STD-810F and MIL-STD-461F, addressing shipboard AC characteristics, environmental exposure and electromagnetic compatibility for demanding naval installations.
Specifications:
| Input voltage | 120/208 VAC, 3-phase |
| Input frequency | 60 Hz |
| Output 1 | 28 VDC, 96.42 A, 2,700 W |
| Output 2 | 28 VDC, 32 A, 900 W |
| Output 3 | 28 VDC, 32 A, 900 W |
| Output 4 | 5 VDC, 2 A, 10 W |
| Total rated power | 4,500 W |
| Efficiency | 80% typical |
| Power factor | 0.99 |
