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Оnline UPS SIPB20KD.9-31 double-conversion with output power capacity 20 kVA for installation in a 19" rack. Three-phase input for even load of power utility. Output power factor 0,9. Parallel operation up to 4 UPS. Connect of external SNMP card.


  • Output power factor 0,9 provides high power density
  • Sinusoidal waveform (sine wave) type of output voltage in all modes of operation and zero transfer time to battery
  • Three-phase input for even load of power utility
  • Possibility of connection to a single-phase power supply network
  • Parallel operation of up to four UPS
  • Increase backup time by connecting external battery packs
  • High charge current for connecting external large capacity batteries
  • Automatic switching on the equipment when the power supply is restored
  • Cold start - UPS can start work powered by battery pack when power utility is not available


  • Informative LCD display with additional LED indication
  • Integrated RS-232/485 control interfaces
  • Connect of external SNMP card
  • Emergency power off (EPO)
  • Additional dry contact interface (optional)

Installation and operation

  • Mounting in a 19" cabinet or rack
  • High-efficiency mode for power saving (ECO mode)
  • Intelligent battery charging for extending battery life
  • Automatic self-test to increase system reliability
  • Hot-swappable batteries
Product Code: 133-01
UPS model SIPB20KD.9-31
Apparent Power, kVA 20
Active power, kW 18
Input phases 3 phases
Output phases 1 phase
Form factor Rack
Warranty 24 months
Rated input voltage 380 V (optional 400, 415 V)
Rated voltage range 208 ~ 478 V
Input frequency range 40 ~ 70 Hz
Rated input current Up to 100 ampere
Input power factor ≥ 0,99
Total harmonic distortion at the input ≤ 3%
Voltage range in ECO mode max +25% (options +10%, +15%, +20%), min -45% (options -20%, -30%)
Input connection type Connection terminal: three phases, neutral and ground
Rated output voltage 220 V (optional 208, 230, 240 V)
Output voltage accuracy ± 1 %
Topology and form of the output voltage Online UPS with pure sine wave output
Distortion of the output voltage ≤2% on linear load
Output frequency (battery mode) 50, 60 ±0.1 Hz
Output power factor 0.9
Peak load ratio 3:1
Overload capacity When working from the mains: up to 110% - 60 minutes, up to 125% - 10 minutes, up to 150% - 1 minute, above 150% - transfer to bypass
Efficiency in online mode ≥94% at full load
Efficiency in ECO mode ≥98% at full load
Surge Protection 600 joules
Filtering Integrated filter
Type of output connection Connection terminal
Bypass circuit (bypass)
Bypass type Electronic
Bypass voltage range From +25% up to -45%
Bypass frequency range ±10% (customizable ±1%, ±2%, ±4%, ±5%)
Built-in battery None
Battery Type Leak-acid sealed with leakage protection
DC bus voltage ±192 V, ±216 V, ±240 V direct current (DC) (optional)
Battery life (50% and 100% load) Depending on the capacity of the connected battery pack
Recharge time Depending on the capacity of the connected battery pack
Charge mode Intelligent charge with temperature compensation voltage
Charge current 6 ampere
Transfer time to batteries 0 ms - from the mains to the battery
Battery Protection Over discharge, overvoltage and short circuit protection
Communications and Interfaces
Interface ports RS232/485
Internal slot for control card Optional external SNMP cards
Emergency power off (EPO) Do have
LCD display and indication Digital LCD display and LED indication
Sound alarm Mains failure, low battery, overload, UPS error
Working Conditions
Operating temperature 0°C ~ 40°C
Operating relative humidity 0 ~ 95 %
Operating height above sea level 0 ~ 3000 meters
Storage temperature -25°C ~ +55°C
Storage height above sea level 0 ~ 10000 meters (recommended)
Protection class IP20
Heat dissipation in online mode 2530 BTU/hour
Noise level Less than 55 dB
Physical Characteristics
Unit size (W х D х H), mm 443x580x131 (without battery pack)
Shipping Unit size (W х D х H), mm 573x746x230
Net weight, kg 30
Shipping weight, kg 33
Compliance with standards
Safety TR TS 004/2011, IEC 62040-1
ЕМС TR TS 020/2011, IEC 62040-2

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Uninterruptible power supply equipment: UPS (Uninterruptible Power Supply), Rechargeable batteries.