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    10kVA Online UPS Uninterruptible Power Supply

    High efficiency Uninterruptible Power Supply, 10kVA/8kW, 3 phase online UPS, excellent Tower design with compact size, easy operation, provide a reliable battery backup and safeguard the power for critical devices against power surges and outages.
    SKU: ATO-ST33 10KS
    Free shipping
    Delivery date: 6-12 days

    UPS Features

    • DSP digital control technology
    • Environmentally friendly
    • Optimizing Tower form design, comparatively smaller size
    • Active input power factor correction (PFC)
    • Internal battery, easy to install
    • LCD panel displays opareting information clearly
    • Wide range of input voltage and frequency
    • One battery module for power supply, cost-effective


    Model ATO-ST33 10KS
    Nominal Input Voltage 220V AC
    Input Voltage Range 210V AC~475V AC (3PH+G)
    Input Frequency 40~70Hz (Adjustable)
    Input Power Factor >0.99
    Output Power Capacity 10kVA/8kW
    Nominal Output Voltage 220VAC(1±1%)
    Other Output Voltages 200/208/220/230/240V AC (Could be adjusted by software. 10% derating for 208VAC/200VAC. )
    Voltage Distortion ≤5%
    Output Frequency Mains mode: synchronize with mains power (46-54Hz) or 50Hz (input frequency 40~46Hz or 54~60Hz);
    Battery mode: 50Hz
    Crest Factor 3:1
    UPS Topology On-line
    Waveform Type Sine wave
    Transfer Time 0ms
    Bypass Output (before turn-on) YES
    Output Connections 4-wire (3PH + G)
    Overload 105%±5%<load≤125%±5%: 1 min, then transfer to bypass and alarm;
    125%±5%<load≤150%±5%: 30s, then transfer to bypass and alarm;
    load>150%±5%: 300ms, then transfer to bypass and alarm.
    Type Maintenance-free Lead-Acid battery
    Battery Rated Voltage 192V DC
    Battery Quantity 16 pcs
    Typical Recharge Time 10 hrs
    Size (LxWxH) 533*260*501mm
    Weight 26kg
    Operating Temperature 0℃~40℃
    Operating Relative Humidity 20%~90%
    Noise( 1m from front panel) ≤60dB
    Communications & Management
    Communication Interface RS232
    Control Panel LCD display
    Audible Alarm Alarm once every 4 seconds during power outage; alarm once every second at distinctive low battery.
    Form Factor Tower
    Efficiency Up to 90%
    EMC ICE/EN/AS 62040-1; CISPR 22 Class A
    Surge Protection ICE/EN 62040-2, compliance with ICE/EN 61000-4-5

    Tips: The battery voltage is low but the battery cannot be charged for more than 10 hours.
    Judging from the phenomenon it is the fault of battery and charging circuit, which can be inspected according to the following procedures.
    1. Check whether the input and output voltage of the charging circuit is normal. 
    2. If the charging circuit is in normal input and abnormal output, disconnect the battery to test again. If it is still abnormal, it is the fault of the charging circuit.
    3. If the charging circuit has normal input and output after the battery is disconnected, it indicates that the battery has been damaged because of the long term charging, long time placement, due life period.

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