MULTI SENTRY is a state-of-the-art uninterruptible power supply, achieving the highest possible level of on-line double-conversion performance (VFI-SS-111) as defined within IEC EN 62040-3. The UPS has been designed to protect critical information and telecommunications systems, networks, services and processes whose operation could be disrupted by poor power quality and/or breaks in their mains power supply. The sizes available include: 10-12-15-20-30-40-60-80-100-120-160-200 kVA all with a three-phase input and utput. The MULTI SENTRY UPS is one of the most efficient UPS available with a minimal impact on its environment and power sources.