PowerWalker VFI 20K CPG PF1 3/3 BI, black The PowerWalker VFI CPG 3/3 PF1 series is a professional commercial solution built in double conversion 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. Each unit is equipped by default with SNMP Card to increase control over the unit and offer embedded monitoring over IP. For this model battery numbers can be adjusted (between 32 and 40pcs, except 10K unit), allowing more flexibility and compatibility with existing battery banks. The three stage extendable charging design also enhances battery performance over its life time.
For safety reasons this series has been equipped with backfeed protection (reverse feed) in order to avoid power transfer to the input terminal in case of mains failure. On demand we can modify unit to include isolation transformer or negative power absorber. • Unity Power Factor (kVA = kW)
• Included SNMP Manager (the intelligent slot is by default used for communication card)
• Parallel operation up to 3 units
• Dual input and adjustable charging current
• Adjustable battery number up to 40pcs for high efficiency | 
