DRS Pivotal Power’s 1500 VA Tactical Uninterruptible Power Supply (UPS) is intended for use on board naval ships to provide conditioned backup power to command, control, communication and navigation equipment where a clean, reliable power supply is essential. The tactical UPS provides 115 VAC, 60 Hz single-phase high quality output power using the ship’s Type 1, 115 VAC supply conforming to MIL-STD-1399. If input power is lost, or if the power quality is outside acceptable limits, the UPS system will seamlessly provide five minutes of backup (at full load) and upon restoration automatically revert to ship’s power. The backup time can be extended to 30 minutes at 50% load with the addition of an external Battery Module. The Tactical UPS functions as a power conditioner, managing surges, spikes and transients, while maintaining stable voltage to the connected equipment with less than 2% harmonic distortion. In addition to meeting MIL-STD-1399 Type 1 power, the UPS is capable of accepting a wide range of input voltages and frequencies before switching to battery backup.