Must Power Intelligent 6kVA-10va N+1 Redundance Online UPS
Main features:

Parallel Units with a Single Output of up to 40kVA
True N+1 Redundancy
DSP Double-Conversion On-line Sinewave Design
Input Power Factor Correction
Hot-Swappable User Replaceable Batteries
LCD Display with Advanced Monitoring for Easy UPS Management
Programmable 50/60Hz Frequency Conversion
Optional Remote Emergency Power Off (REPO)
Wide Input Voltage Window
Precision Output Voltage Regulation
Superior Brownout, Surge & Transientsientsient Protection
Optional Extended Battery Banks & Chargersrgersrgers
RS-232C, USB & Optional SNMP/HTTP AgentAgentAgent
WINPOWER® UPS Monitoring & Management Software Software Software