Modular on-line UPS allows selecting desired power rating in range of 15kVA to 150kVA (up to 10 modules of 15kVA). Modules are working in parallel without any need for extra cabling, synchronisation or setup. Additionally modules are hot-swappable, that means you can insert another module even when UPS is working. There three types of cabinets rated to 90kVA, 120kVA and 150kVA (different cabling, MBS rating etc), all of them are the same size and can fit 10 modules, so for example 90kVA cabinet with 10 modules will work in parallel 6+4 system. Six modules (6x15kVA=90kVA rated) are enough to support the load and additional four are serving as redundant backup. If any module fails, you can easily unplug it and replace without interruption for the operation.
PowerWalker VFI MP 3/3 belongs to advanced models, featuring all benefits of modern UPSs like high power factor 0.9, zero transfer time, three additional intelligent slots for extension cards, pure sine wave output with <2% THD with linear load. External battery input is flexible allowing to select from 32 to 40 batteries per set, which you can change with 7” full colour LCD panel.
This series is the best for redundant backup management, system with N+2 modules inserted increases availability of the UPS system over 99.99% and its MTBF (Mean Time Between Fails) over 10 mln hours! Everything is possible without cables and any setup, just pull out failed module and insert replacement, or simply install more modules in free slots.