The SUT30K SmartOnline SUT series 3-phase On-line double-conversion UPS provides complete protection against power interruptions and fluctuations that can contribute to equipment failures and data loss. It's recommended for critical data center, telecommunications, computer network, light industrial and financial applications. The voltage and frequency independent design allows continuous operation. Zero transfer time from online to battery mode ensures no disruption to attached equipment loads. Automatic bypass keeps connected equipment powered, even during overloads and many potential UPS fault conditions.