UPS Topology

“Voltage independent” UPS in compliance with IEC 62040-3, also known as line interactive, protects against the most common network power problems experienced. Here, the UPS also monitors the voltage level and balances under and over voltages. VI technology offers a good compromise between reasonable security and moderate operating costs.


  • Extremely wide input voltage window
  • Rugged design
  • High efficiency
  • Low operating costs


  • transfer gap (ms) when the AVR is switched to the inverter
  • load is fed by unfiltered voltage (no correction by the inverter)

  • Protect Alpha

    • 450 - 1200 VA
    • Line-interactive UPS (VI)

    Protect your system against loss of data when it matters with an uninterruptible power supply. The Protect Alpha series offers effective and economical data protection during power failure, dangerous power surges and voltage fluctuations.

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  • Protect B Pro

    • 750 - 3000 VA
    • Line-interactive UPS (VI)
    • combined Tower/Rack version

    With its high power factor of 0.9, Protect B Pro is one of the most efficient power supply systems with VI protection technology. Its advanced battery management system enables extended battery lifetime as there is a decrease of pole corrosion.

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  • Protect A

    • 500 - 1600 VA
    • Line-interactive UPS (VI)

    Avoid irreparable damage to your data and system that can cause significant financial loss caused by over voltage or power surges. With easy installation, the compact uninterruptible power supply, Protect A will assure device protection and provide several minutes runtime in case of main power failure. It is ideal for office, network and telecom peripherals.

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  • Protect B / NAS

    • 500 - 1500 VA
    • Line-interactive UPS
    • NAS version with extra long autonomy time

    Protect B is a product specially designed to provide power backup for small and medium enterprises and home businesses and is perfect for protecting ATMs, 3D printers, workstations, PCs, and other IT applications.

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