EH5500 Rack Mount Internal Battery Series (1-3KVA)

High Frequency Online UPS

The EH5500 series is a new type high-frequency online UPS. Adopts advanced DSP digital control technology to effectively improve product performance and system reliability, and higher power density small size, light weight and high work efficiency. Effectively solve power problems such as power cut-off, Grid over voltage/low voltage, voltage instantaneous drop, amplitude reduction, high voltage pulse, surge voltage, harmonic distortion, clutter interference, frequency fluctuation and provide best power for load. We adopt standard 2U rack structure.

  • Double conversion online design
  • Adopt DSP digital control
  • With LCD+LED real-time display
  • Ultra-wide input voltage range
  • The efficiency of the whole UPS is as high as 95.5%

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  • With double conversion online design, zero output transfer time. Single phase input and output voltage.
  • Adopt DSP digital control, excellent performance indicators, more steady and reliable.
  • Adopt active power factor correction technology (PFC), the input power factor is 1, can reduced the pollution to the grid, To energy saving and reducing system investment.
  • Ultra-wide input voltage range.
  • Input frequency range 40~70Hz, support various fuel generators.
  • With LCD+LED real-time display, users can intuitively understand the UPS operating status.
  • With self- detection function, can detect hidden faults of UPS in time.
  • With AC input over voltage, low voltage protection, output overload protection, short circuit protection, temperature protection, battery low voltage warning protection and battery overcharge protection.
  • The efficiency of the whole UPS is as high as 95.5%, which reduces the power loss of it and saves the user’s use cost.
  • When there is no mains power, you can directly use the battery to cold start.
  • With input neutral and live line detection function, avoid the reverse connection of UPS utility input.
  • When utility cut-off, the UPS discharge battery in the battery mode; when the city power is recovery ,UPS turn on automatically,and charge battery at the same time, as unattended function.
  • Standard RS232 communication outlet ,connect UPS and computer to realize multifunctional and multi-purpose monitoring and management operations, available SNMP card (optional) to UPS remote monitoring function.


It is suitable for power protection devices such as commercial servers, PC servers and peripherals,communication and network equipment, home office computers and other sophisticated electronic equipment.

Rated Capacity1KVA/1KW2KVA/2KW3KVA/3KW
Input connection typeL+N+PE
Rated input voltage208/220/230/240VAC
Voltage range110-300VAC
Frequency rage50/60+HZ (default), ±10HZ (can be set)
Input power factor≥ 0.99
Input THD≤ 4% % linear load
Output connection typeL+N+PE
Output voltage208/220/230/240VAC
Output accuracy±1%
Output frequencyMains  mode:same as AC frequency, battery mode : 50/60HZ+-0.1%
Output THD≤2% linear load, ≤ 4% Non-linear load (PF=0.7)
Output power factor1
Overload CapacityAC Mode:
30min@102%~110% Load
10min@110%~130% Load
30s@130%~150% Load
200ms@>150% Load
Battery Mode:
1min@102%~110% Load
10s@110%~130% Load
3s@130%~150% Load
200ms@>150% Load
Transfer time
AC mode switch to battery mode0ms
mains inverter mode switch to bypass mode4ms
AC priority modeSupport
Overall Efficiency
AC Mode (Full Load)94.5%@220VAC95.5%@220VAC95.5%@220VAC
Battery Mode (Full Load)87.5% @24VDC89.5% @48VDC91.5% @72VDC
Battery typeLead Acid Battery
Number of batteries7Ah*2/37Ah*47Ah*6
Battery  Charge Current1KR-3KR:1A (default); 1-2A (can be set) 1KRS-3KRS:5A (default);  1-12A (can be set)
Charging ModeTwo-stage/three-stage charging
LCD2×8 PIN/Pitch 2.54mm, support 128-bit segment code, up to 4 buttons + 4 LEDs, can display operating mode / load / input / output, etc
RS-232Support: Windwos 2000/2003/XP/Vista/2008/7/Linux/Unix and MAC
USBWindows Famlly & MAC
Intelligent slot (Optional)SNMP/AS400 Relay Card/RS485
Environmental parameters
Operating ambient temperature0~40℃
Operating environment humidity20%~95% (No condensation)
Storage temperature-15~60℃ ( Battery : 0~40℃ )
AltitudeThe altitude should not exceed 1000m, derating above1000m, up to  4000m (max ) , refer  IEC62040
Mechanical Specifications
Dimensions (D*W*H) (mm)438*420*88438*600*88438*600*88
Net weight (kg)9.5/11.5 17 21.5