TreStar P online double-conversion, three-phase uninterruptible power supplies are designed for use in critical loads. Up to eight modules can be installed in parallel for redundancy or additional capacity. The modules feature a digital control system that eliminates overloads, frequency variations, transients, flicker and blackouts in real time. They offer an output power factor of 0.9 with a vector-controlled IGBT inverter. The components are available from 125 kVA to 225 kVA and an input voltage range of 208 or 480 Vac, with a range of +15/-20%. Input frequency is 60 Hz and output is regulated to

Staco Energy Products Co.

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