A single-phase installation consists of a single sine wave input and is typically a single phase of a larger three phase supply. A typical example of this would be a local three pin UK socket which uses 230/240 VAC to supply power. Most small power hardware including rack-mounted servers, telecoms, network switches, computer systems or any device running from a standard three pin UK plug, operate from a single phase supply.Three phase
A three-phase installation uses the full three phases which are generated from the grid. A three phase electrical supply comprises of three individual sine waves, and can be installed as either a three wire or three wire & neutral configuration. A three-phase source would typically come from a local transformer, with the standard three phase voltage being 400/415 VAC.5-44 kVA
Understanding the total kVA requirement of a critical load is a key part of establishing a UPS’ true sizing requirement. For more information see kVA calculator and guide to choosing a UPS.
Powerful series of standby generators available in 11 models from 5kVA to 44kVA for single and three