SVEN Pro+ 400


SVEN Pro+ 400 line-interactive UPS is designed for protecting PCs, workstations and servers equipped with switched mode power supplies. Due to the built-in battery, the UPS can operate even in complete voltage blackout, which enables the user to save data and shut down the operating system correctly. The built-in AVR allows automatic voltage adjustment within 165–275 V and ensures long uninterrupted work. This feature is essential for networks with unstable voltage.

Sven Pro+ 400 is supplied with Cold Start function, allowing to force the UPS into operation in complete absence of mains voltage.


  • Input voltage range: 165 – 275 V (built-in AVR)
  • Output voltage range: 220 V ± 10 %
  • Cold Start functiom in battery mode
  • Load type: PC, monitor
  • Short-circuit protection, pulse and high-frequency disturbance protection
  • Transformer thermal protection
  • Non-flammable ABS plastic case

Technical Specifications

UPS type line-interactive
Total power, VА 400
Active power, W 240
Maximal output power, W 240
Type of load computer, monitor
Input voltage level, V ~165 – 275
Output voltage level, V ~220 ± 10 %
Output voltage waveform approximated sinusoid
Input frequency, Hz 50
Output frequency, Hz 50 ± 1 % (backup mode)
Input socket 1 × СЕЕ7/7
Output sockets 1 × CEE7/4
Protection against short circuit, impulse and high frequency interferences; transformer thermal protection
Accumulator type maintenance-free sealed lead-acid batteries (consumables)
Battery voltage, V 12
Battery capacity, А•h 7
Typical switching time, ms ≤ 10
Batteries operation time, min 3-20 (dependent on connected load)
Indicators power LED, on-line operation LED, charge LED
Fuse cutout
Environmental temperature, °С 0 – 40
Relative humidity, % 10 – 90
Efficiency, % 80
Case material ABS plastic
Dimensions, mm 95 × 165 × 340
Weight, kg 4.4
Color black
Life time 5 years

Tests and reviews

This article says about the theory and practice of using uninterruptible power supplies (UPS).
Anatoly Litvinenko.