Providing maximum power protection, the PowerWave 33 Series 3 (S3) takes up little space and consumes less power than comparable products, providing significant cost savings for the user. The exceptional design of the PowerWave 33 S3 meets all modern requirements for the construction and operation of energy efficient and environmentally friendly centers. The PowerWave 33 S3 uses a double conversion transformerless UPS topology and is available in a power range from 60 to 120 kW.