Overview The SV20KS1P1B SmartOnline® SV Series 20kVA Small-Frame 3-Phase On-Line Double-Conversion UPS System delivers true scalability and offers the highest level of secure, uninterrupted power protection. Featuring a modular, scalable design with high-efficiency voltage and frequency independent (VFI) operation, this on-line UPS system with a high 0.9 power factor is ideal for protecting a variety of critical IT systems.The SV20KS1P1B includes pre-installed input, bypass and output breakers, as well as a static transfer switch (STS), one 20kVA SV20PM power module and one SVBM battery module. Space is included for up to two additional user-installable SV20PM power modules and two SVBM internal battery modules. External ±120VDC battery options, such as BP240V370, are also available from Tripp Lite for even more extended runtime.