Staco Energy Products Co. has introduced the FLU-10S, a second generation to its FirstLine 10kva three-phase Uninterruptible Power Supply (UPS). The online, double-conversion UPS provides computer-grade power quality and includes a standard battery run-time of more than nine minutes, with optional batteries for extended run times. Sophisticated power electronics technology provides reliable blackout protection and power conditioning. Front-end harmonic correction eliminates the need for additional filtering, lowering the cost of operation. Robust double-conversion technology protects the connected load from sags, swells, harmonics, noise and voltage imbalances without going to battery operation. The unit is UL1778 listed.