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MST Pro Series 6kVA~10kVA / 10kVA~20kVA

MST-Pro On-Line-Series is an uninterruptible power supply incorporating double-conversion technology. It provides perfect protection specifically for strict load. The double-conversion principle eliminates all mains power disturbances. A rectifier converts the alternating current from the socket outlet to direct current. This direct current charges the batteries and powers the inverter. In the event of power failure, the maintenance-free batteries power the inverter. Thus the inverter generates a sine wave AC power, which permanently supplies the loads.

Designed with the proven on-line, double conversion architecture, this series of UPS offers the greatest degree of availability in power protection and provides continuous high-quality AC power to connect strict load, especially for the basic equipment in some areas as: finance, communication, government, traffic, manufacture, education and so on.


MST-Pro Series offers high quality power supply with the greatest degree of availability and reliability


Battery expansion is possible to increase the back-up time of the UPS. For longer back-up time, it is available MST-Pro “L” version without internal battery but with powerful battery charger


MST-Pro Series comes with an expansion slot for optional communication board which make it compatible with the main communication option: SNMP and Dry contact card


  • MST-Pro has faster response, more reliable protection by adopting hardware circuit current-limiting on rectifier and inverter sections;
  • MST-Pro greatly reduces the voltage stress of input PFC switching components, increase the overall working efficiency by adopting PFC soft switching circuit technology;
  • Electric stress on switching on or off UPS is reduced by 50% , inverter working efficiency increases efficiently, support all kinds of load
  • Overall efficiency is increased greatly, less power consumption on small load, effective efficiency reaches over 91% on full load;
  • With mobile network monitoring function developed, end user can monitor and supervise UPS functioning and running with mobile device any time anywhere;
  • Stable output voltage wave form, more accurate output range: 220V+/-1%
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