Online UPS

EH5500 LV Series High Frequency Online UPS (1-3KVA)

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 f or load.


  • Rated input voltage: 100/110/115/120/127VAC
  • Adopt DSP digital control
  • With LCD+LED real-time display
  • With self- detection function
  • Standard RS232 communication outlet
  • With double conversion online design, zero output transfer time.
  • Adopt DSP digital control, excellent performance indicators, more steady and reliable.
  • Adopt the technology of active power factor correction technology (PFC), the input power factor is close to 1, which greatly reduces the pollution to the mains power grid, and achieves the purpose of energy saving and reducing system investment costs.
  • Output voltage 100Vac/110Vac/115Vac/120Vac/127Vac can be set
  • Ultra-wide input voltage range, input voltages available 110V instead of turn to battery power.
  • With LCD+LED real-time display, UPS operating available for detection.
  • With self- detection function, can detect hidden faults of UPS.
  • Cold start by battery without grid Input.
  • Input frequency range 40~70Hz, support various fuel generators.
  • 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.
  • Output power factor 1.0 max. efficiency reach 95% , reduce loss of UPS.
  • 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, asunattended 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.

↓↓↓Installation Portfolio------------

ModelEH55 LV 1KEH55 LV 1KSEH55 LV 2KEH55 LV 2KSEH55 LV 3KEH55 LV 3KS
Rated Capacity1KVA/1KW2KVA/2KW3KVA/3KW
Input formatL+N+PE
Rated input voltage100/110/115/120/127VAC
Voltage range55~150VAC
Frequency range50/60±6Hz (Default), ±10Hz (Settable)
Input power factor≥0.99
Input total harmonic distortion≤3% linear load; ≤8% nonlinear load
Output formatL+N+PE
Output voltage100/110/115/120/127VAC
Output accuracy±1%
Output frequencyFor on-line mode: follow current frequency, battery mode: 50/60Hz±0.1%
Output harmonic distortion≤2% linear load; ≤5% nonlinear load (PF=0.8)
Overload capacity

AC Mode:
10min@102%~110% Load 
1min@110%~130% Load
10s@130%~150% Load
200ms@ >150% Load

Battery Mode:
1min@102%~110% Load
10s@110%~130% Load  
3s@130%~150% Load
200ms@ >150% Load

Switching time
Switch to battery mode0ms
Switch to bypass4ms
AC priority modeSupport
AC Mode (Full Load)93.5%@110VAC95%@110VAC94%@110VAC
Battery Mode for without built-in battery (Full Load)88.5%@36VDC91.5%@72VDC91.5%@96VDC
Battery Mode for with built-in battery (Full Load)89.5%@24VDC92.5%@48VDC92.5%@72VDC
Battery typeLead Acid Battery
Battery number7Ah*2/7Ah*337Ah*4/7Ah*667Ah*6/7Ah*88
Chaging currentBuilt-in battery 1K-3K: 1A (Default)  1-2A (Adjustable)
Without built-in battery 1KS-3KS: 5A (Default)  1-12A (Adjustable)
Charging modeTwo-stage/three-stage charging
LCD2×8PIN/Pitch2.54mm, 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
EPO (Optional)Support
Environmental parameters
Operating ambient temperature0~40℃
Operating environment humidity20%~95% (no condensation)
Storage temperature-15~60℃ (batteries: 0~40℃ )
AltitudeThe elevation should not exceed 1000m, 1000m or above, up to 4000 m, reference IEC62040
Mechanical Specifications
Dimensions (D*W*H) (mm)395*143*222455*190*330455*190*330
Net Weight (kg)9.55.519/235.527/3110