The PowerWalker VFI CPG 3/3 PF1 series is a professional commercial solution built in double conversion Online technology with power factor 1.0. Equipped with three-level inverter topology, it results in high efficiency, reaching 95.5% in Line Mode and even 98.5% in ECO Mode. The series ensures low harmonic distortions and precise voltage regulation (1%). All phases have Active Power Factor Correction. Thanks to its modern design, the VFI CPG series reaches a very high power density (kVA output in relation to the size/volume of the unit). All models of this series offer generator support, dual input and allow parallel operation up to three units. The three stage extendable charging design also enhances battery performance over its life time. On demand we can modify unit to include isolation transformer or negative power absorber. The UPS is available in 3 different Variations: BE: Internal Batteries not included/ works with External Batteries BI: Internal Batteries are included/ works with External Batteries BX: Only compatible with External Batteries