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High Frequency Online UPS

High Frequency Online UPS

EH9335 Series (10-80KVA)

The EH9335 series of 3/3 UPS adopts double-change online design, with input power factor correction (PFC), which makes the input power factor as high as 0.99. It has a high energy density ratio, which greatly reduces its own volume and floor space of the computer room. Using digital control, the system is highly stable, with selfprotection and fault diagnosis capabilities. This series of UPS can better solve power supply problems such as instantaneous voltage drop, damping oscillation, high voltage pulse, surge voltage, harmonic distortion, clutter interference, and frequency fluctuation for users.


  • Double conversion high frequency online design.
  • Using digital control, the system is more stable.
  • With input power factor correction (PFC), the input power factor is 0.99.
  • The number of battery cells can be set according to user needs: ±16/17/18/19/20 cells.
  • With parallel interface, 4 units can be paralleled, and battery packs can be shared in parallel.
  • The charging current can be set, and the three-stage charging management of constant voltage, constant current, and floating charge can be automatically switched.
  • With LCD and LED dual display, users can intuitively understand the working status and parameters of the UPS.
  • With a maintenance bypass switch, which can be maintained when the power is uninterrupted.
  • The output load capacity is strong, which can adapt to the unbalanced three-phase load.
  • With RS232 communication interface and SNMP (optional) card.
  • With emergency shutdown (EPO) button interface, in an emergency, press the EPO button to emergency shutdown.


The EH9335 series is the best choice for data centers, network management centers, and enterprise server rooms in various industries or fields such as telecommunications, finance, transportation, government,manufacturing, and energy.
ModelEH9335- 10KSEH9335- 20KSEH9335- 30KSEH9335- 40KSEH9335- 60KSEH9335- 80KSEH9335- 10KEH9335- 20KEH9335- 30KEH9335- 40K
Rated capacity10KAVA/9KW20KVA/18KW30KVA/27KW40KVA/32KW60KVA/54KW80KVA/64KW10KVA/9KW20KVA/18KW30KVA/27KW40KVA/32KW
Input formatThree-phase four-line + ground
Rated input voltageAC 380V/400V/415V
Voltage rangeAC 208V~478V
Frequency range45-55Hz at50Hz / 54-66Hz at60Hz (Auto)
Input power factor≥0.99
Input current harmonic≤3% (100% Nonlinear load)
Bypass rangeBypass protection voltage upper limit: 220V: +25% (Optional +10%, +15%, +25%)230V: +20% (Optional+ 10%, +15%)240V: +15% (Optional+10%)
Bypass protection voltage lower limit: -45% (Optional -20%-30%)
Bypass frequency protection range: ±10%
Output formatThree-phase four-line + ground
Rated output voltageAC 380V / 400V / 415V
Output power factor0.8 / 0.9
Output accuracy±1%
Output frequencyOnline mode: Follow the utility frequency; Battery Mode: 50/60Hz±0.2%
Output current harmonic≤ 2% Linear Load ≤ 5% Nonlinear Load
Battery numberOptional: DC±192V/204V/216V/228V/240V (±16/17/18/19/20 pcs) default: DC±192V7Ah*207Ah*209Ah*209Ah*20
Charging Current10A max20A max4A max
Overload protectionLoad 110%, 60min;  ≤ 125%, 10min;  ≤ 150%, 1min; ≥ 150% Transfer to bypass immediately
Over Temperature ProtectionNormal mode: switch to bypass mode; battery mode: shut down output immediately
Emergency shutdown (EPO)Shut down output immediately
Maintenance bypassStandard maintenance bypass switch
Switching timeUtility mode to bypass mode: 0ms; utility mode to battery mode: 0ms
Normal mode (full load)≥efficiency 94.5%
Communication interfaceRS232,RS485,SNMP Card (optional), electric relay card (optional)
Energy Saving Mode (ECO)Support
Self-check functionSupport
Parallel functionSupport up to 4 units in parallel
Executive standardYD/T1095-2018
Operating Environment
Operating temperature0~40℃
Storage temperature-25~55℃ (batteries: 0~40℃ )
Operating environment humidity0%~95% (no condensation)
Altitude< 1500m, when above 1500m, when above 1500m, derate according to GB/T 3859.2
Physical characteristi
Size (D*W*H) (mm)690*250*734775*335*978
Net Weight (kg)5050515289901641665166167